This work evaluates the release of phosphorus contained in the digestate from the anaerobic digestion of pig manure, through an acidification process. The objective of this acidification is to increase the amount of phosphorus available in the digestate liquid fraction and, subsequently, recover this element by chemical precipitation in the form of struvite or calcium phosphate. Two digestate samples (one fresh and one old) were studied and treated by adding various amounts of sulphuric acid to the different digestate fractions (raw digestate, solid fraction and liquid fraction). For the raw digestate, phosphorus releases higher than 95% were obtained for pH 4.0. In the last part of the experiment, the influence of acid pre-treatment on the reaction yield of phosphorus precipitation, in the form of struvite or calcium phosphate, was determined. Improvements in reaction yield were obtained up to 15% for struvite and 80% for calcium phosphate, increasing also in 7.5 times the amount of phosphorus available in the digestate liquid fraction, for both cases.
", "keywords": ["Biofertiliser", "FEASIBILITY", "NUTRIENT RECOVERY", "PH", "Struvite", "Swine", "SWINE WASTE-WATER", "0211 other engineering and technologies", "02 engineering and technology", "7. Clean energy", "01 natural sciences", "CALCIUM", "Acidification", "ANAEROBIC-DIGESTION", "Environmental Chemistry", "PHOSPHORUS REMOVAL", "Animals", "Chemical Precipitation", "Toxicology and Mutagenesis", "Anaerobiosis", "Organic waste", "SLUDGE", "0105 earth and related environmental sciences", "Phosphorus", "General Medicine", "Pollution", "6. Clean water", "Manure", "Nutrient recovery", "Health", "Earth and Environmental Sciences", "Release", "PRECIPITATION", "Waste and Biomass Management & Valorization", "CRYSTALLIZATION"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1007/s11356-020-10918-6.pdf"}, {"href": "https://doi.org/10.1007/s11356-020-10918-6"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%20and%20Pollution%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11356-020-10918-6", "name": "item", "description": "10.1007/s11356-020-10918-6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11356-020-10918-6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-10-03T00:00:00Z"}}, {"id": "10.1016/j.dib.2025.111585", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:55Z", "type": "Journal Article", "created": "2025-05-01", "title": "Dataset on physico-chemical characteristics of Exogenous Organic Matters (EOMs) gathered from various European countries", "description": "Many activities generate organic wastes, including urban activities (e.g., biowaste, sewage sludge), industry (e.g. vinasse) and agriculture (e.g., livestock manure, crop residues). Exogenous Organic Matters (EOMs) are secondary raw materials, i.e., wastes and residues from agriculture, municipalities or industry, which are either used as such or further processed with different technologies. The large variability in the raw materials and production technologies increases the diversity of EOM characteristics, which in turn affect their efficacy when applied to soils. The datapaper presents the database \u201cPhysico-chemical characteristics of Exogenous Organic Matters (EOMs)\u201d which is available in the Zenodo repository (https://doi.org/10.5281/zenodo.13969793). The database is a non-relational database in column format established in the framework of the EJP SOIL EOM4SOIL project, which aimed at establishing a database on EOM\u2019s characteristics. The database gathered EOM characteristics collected in national databases and surveys from 6 European countries, and completed by data published in scientific articles. It describes physico-chemical characteristics of 126 types of EOMs encompassing urban, industrial and agricultural origins (e.g. urine, biowastes, sewage sludge, farmyard manures) and 91 characteristics (e.g. major elements, trace metals, emerging organic contaminants, pathogens, potentially mineralised C and N). There is an average of about 20 variables collected per type of EOM. Preliminary description of the EOM characteristics database is proposed in the present datapaper using descriptive statistics. The characteristics of the 126 types of EOMs provide valuable insights that can help farmers, policymakers, and agricultural consultants to optimize the use of these materials in fertilization and soil amendment practices. This knowledge is essential for better management of EOM application practices by the farmers in order to increase soil carbon stocks and reduce the reliance on mineral fertilizers.", "keywords": ["[SDE] Environmental Sciences", "[SDV.SA.AGRO] Life Sciences [q-bio]/Agricultural sciences/Agronomy", "Science (General)", "Computer applications to medicine. Medical informatics", "Digestate", "R858-859.7", "Compost", "Urine", "Sludge Urine", "Sludge", "Biochar", "Livestock manure", "Q1-390", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "Composition", "Data Article"]}, "links": [{"href": "https://doi.org/10.1016/j.dib.2025.111585"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Data%20in%20Brief", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.dib.2025.111585", "name": "item", "description": "10.1016/j.dib.2025.111585", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.dib.2025.111585"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-06-01T00:00:00Z"}}, {"id": "10.1016/j.jclepro.2022.130383", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:29Z", "type": "Journal Article", "created": "2022-01-05", "title": "Microplastics degradation through hydrothermal liquefaction of wastewater treatment sludge", "description": "Wastewater treatment plant sludge contains large quantities of microplastics (MPs), which is a problematic substance that impedes sustainability efforts, such as in land management. MPs are resilient to degradation, but extreme conditions, such as high temperature and pressure, can lead to residues that can be used as fertilizers on farmlands. Hydrothermal liquefaction (HTL) creates such conditions, converting sludge into valuable bio-crude. To this end, the current study examined the resilience of MPs in sewage sludge that were treated by continuous HTL operated at supercritical water conditions (400 \u25e6C, 30 MPa). MPs were extracted before and after the HTL process and quantified by Fourier Transformation Infrared Spectroscopy (FTIR). Particles of 10\u2013500 \u03bcm were quantified using Focal Plane Array (FPA) based micro-FTIR (FPA-\u03bc-FTIR) imaging combined with an automated analysis of the generated spectral image, while Attenuated Total Reflection (ATR)-FTIR was used for MPs >500 \u03bcm. The continuous HTL led to an MP reduction of approximately 76% in terms of MP number and 97% in terms of MP mass. The difference in reduction of the number of MPs versus their accumulated mass was the result of MPs being smaller after the HTL process. A total of 18 polymer types were detected in the sludge and slurry entering the continuous HTL while only 11 types were identified in the residual materials. No MPs were detected in the bio-crude, i.e. the most favorable product of the process. The polymer composition changed considerably as a result of the HTL process. Polyurethane, polypropylene, and polyethylene were the dominant polymers in the feedstock, while polypropylene and polyethylene were the most present in the residual products. The findings indicate that HTL can be efficient in reducing MPs in highly polluted sludge from wastewater treatment plants, leaving the byproducts and residuals significantly less polluted, hereby reducing the movement of MPs to the terrestrial environment. Thus the products are better suited for sustainability efforts than the raw material.", "keywords": ["Bio-crude", "Polymers", "Microplastics", "0211 other engineering and technologies", "02 engineering and technology", "/dk/atira/pure/sustainabledevelopmentgoals/clean_water_and_sanitation; name=SDG 6 - Clean Water and Sanitation", "01 natural sciences", "6. Clean water", "12. Responsible consumption", "/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy; name=SDG 7 - Affordable and Clean Energy", "13. Climate action", "11. Sustainability", "Sewage sludge", "Hydrothermal liquefaction", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.jclepro.2022.130383"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Cleaner%20Production", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jclepro.2022.130383", "name": "item", "description": "10.1016/j.jclepro.2022.130383", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jclepro.2022.130383"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-02-01T00:00:00Z"}}, {"id": "10.1016/j.ibiod.2018.10.001", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:25Z", "type": "Journal Article", "created": "2018-10-11", "title": "Changes of sewage sludge digestate-derived biochar properties after chemical treatments and influence on As(III and V) and Cd(II) sorption", "description": "Abstract This work seeks to extend the knowledge on the effect of chemical treatment of sewage sludge digestate (SSD)-derived biochar for the As(III and V) and Cd(II) sorption ability using potassium hydroxide (KOH) or hydrogen peroxide (H2O2). Results showed the increases of the pH of point of zero charge, the Brunauer-Emmett-Teller (BET) surface area and cation exchange capacity (CEC) after chemical treatment of biochar. The sorption ability was enhanced from 1.6\u202f\u03bcmol\u202fg\u22121 (As(V)) and 16.1\u202f\u03bcmol\u202fg\u22121 (Cd(II)) on raw biochar to 8.5\u202f\u03bcmol\u202fg\u22121 (As(V)) and 318.5\u202f\u03bcmol\u202fg\u22121 (Cd(II)) on KOH-modified biochar. Furthermore, arsenic redox distribution showed a large oxidation (70%) of As(III) to As(V) in KOH-biochar with batch washing, while a partial oxidation (7%) was observed in KOH-biochar with batch and subsequent column washing. The washing procedures after KOH treatment play an important role on arsenic sorption, due to the release of phosphate (PO43\u2212) as well as organic matter from the biochar that may subsequently lead to the oxidation of As(III) to As(V). Our findings highlight the potential influence of biochar on the redox transformation of As(III) to As(V) and therefore requires a careful assessment while investigating the fate of As in aquatic environments.", "keywords": ["[CHIM.MATE] Chemical Sciences/Material chemistry", "[SDE.IE]Environmental Sciences/Environmental Engineering", "[SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering", "0211 other engineering and technologies", "600", "[CHIM.MATE]Chemical Sciences/Material chemistry", "02 engineering and technology", "Cd(II)", "Chemical activation", "01 natural sciences", "6. Clean water", "Sewage sludge digestate derived biochar", "12. Responsible consumption", "Biochar washing", "As(III)", "As(V)", "[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering", "[SDE.IE] Environmental Sciences/Environmental Engineering", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.ibiod.2018.10.001"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/International%20Biodeterioration%20%26amp%3B%20Biodegradation", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ibiod.2018.10.001", "name": "item", "description": "10.1016/j.ibiod.2018.10.001", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ibiod.2018.10.001"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-11-01T00:00:00Z"}}, {"id": "10.1016/j.jenvman.2020.110327", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:31Z", "type": "Journal Article", "created": "2020-03-26", "title": "Management of poultry manure in Poland \u2013 Current state and future perspectives", "description": "This review aimed to analyse the current state of management practices for poultry manure in Poland and present future perspectives in terms of technologies allowing closing the loops for circular economy, and thus recovery of nutrients and energy. The scope of the review focused primarily on: (1) the analysis of poultry production and generation of poultry manure with special references to quantities, properties (e.g. fertilizing properties), seasonality, etc.; (2) the overview of current practices and methods for managing poultry manure including advantages and limitations; (3) the analysis of potential and realistic threats and risk related to managing poultry manure, and also (4) the analysis of promising technologies for converting poultry manure into added value products and energy. The review addressed the following technologies: composting of poultry manure to obtain fertilizers and soil improvers, anaerobic digestion of poultry manure for energy recovery, and also pyrolysis of poultry manure into different types of biochar that can be applied in agriculture, horticulture and industry. Poultry manure is rich in macro- and micronutrients but also can contain various contaminants such as antibiotics or pesticides, and thus posing a realistic threat to soil and living organisms when applied to soil directly or after biological treatment. The main challenge in poultry manure processing is to assure sufficient closing of carbon, nitrogen and phosphorous loops and safe application to soil.", "keywords": ["LITTER", "Nitrogen", "SEWAGE-SLUDGE", "0211 other engineering and technologies", "Circular", "ANAEROBIC CO-DIGESTION", "02 engineering and technology", "SORPTION", "Poultry manure", "Poultry", "12. Responsible consumption", "Soil", "METHANE", "Nutrient and energy recovery", "0202 electrical engineering", " electronic engineering", " information engineering", "Animals", "BIOGAS PRODUCTION", "ORGANIC FRACTION", "Fertilizers", "PRODUCTION", "2. Zero hunger", "BIOCHAR", "PYROLYSIS", "Composting", "Agriculture", "15. Life on land", "Management", "Manure", "economy", "CHICKEN MANURE", "13. Climate action", "Earth and Environmental Sciences", "Poland"]}, "links": [{"href": "https://doi.org/10.1016/j.jenvman.2020.110327"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Environmental%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jenvman.2020.110327", "name": "item", "description": "10.1016/j.jenvman.2020.110327", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jenvman.2020.110327"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-06-01T00:00:00Z"}}, {"id": "10.1016/j.jenvman.2019.02.120", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:30Z", "type": "Journal Article", "created": "2019-03-06", "title": "Distribution trend of trace elements in digestate exposed to air: Laboratory-scale investigations using DGT-based fractionation", "description": "The use of digestate as amendment for agricultural soils has already been proposed as an alternative to mineral fertilizers or undigested organic matter. However, little information is available concerning the effect of digestate atmospheric exposure on trace elements speciation and, consequently, on their mobility and bio-accessibility when digestate is stored in open tanks or handled before land spreading. In this study, we investigated at laboratory-scale the effect of digestate aeration on the distribution of Al, As, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Sb, Se and W using the diffusive gradients in thin films technique (DGT)-based fractionation. For this purpose, experiments were performed to assess the variation in distribution between the labile, soluble and particulate fractions over time in digested sewage sludge during passive and forced aeration. Results showed that aeration promoted a dissolution of Al, As, Co, Cr, Cu, Fe, Mn, Mo and Pb, suggesting a possible increase in their mobility that may likely occur during storage in open tanks or handling before land spreading. Labile elements' fraction increased only during forced aeration (except for Fe and Mn), suggesting that their short-term bio-accessibility can increase only after significant aeration as the one assumed to occur when land spreading takes place.", "keywords": ["550", "[SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering", "Speciation", "[SDU.STU]Sciences of the Universe [physics]/Earth Sciences", "Diffusive gradients in thin films (DGT)", "Chemical Fractionation", "01 natural sciences", "630", "Soil", "Digested sewage sludge", "[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering", "Fractionation", "Diffusive gradients in thin films (DGT); Digested sewage sludge; Fractionation; Metalloids; Metals; Speciation; Chemical Fractionation; Environmental Monitoring; Sewage; Soil; Trace Elements", "Metalloids", "0105 earth and related environmental sciences", "2. Zero hunger", "Sewage", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water", "Trace Elements", "Metals", "13. Climate action", "[SDU.STU] Sciences of the Universe [physics]/Earth Sciences", "0401 agriculture", " forestry", " and fisheries", "Environmental Monitoring"]}, "links": [{"href": "https://doi.org/10.1016/j.jenvman.2019.02.120"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Environmental%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jenvman.2019.02.120", "name": "item", "description": "10.1016/j.jenvman.2019.02.120", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jenvman.2019.02.120"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-05-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2004.08.025", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:46Z", "type": "Journal Article", "created": "2004-12-15", "title": "Long-Term Effects Of Metal-Containing Farmyard Manure And Sewage Sludge On Soil Organic Matter In A Fluvisol", "description": "Abstract Our aim was to establish the long-term effects of repeated applications after 20\u00a0y of organic amendments (farmyard manure at 10\u00a0t\u00a0ha \u22121 \u00a0y \u22121 , and urban sewage sludge at two different rates, 10\u00a0t\u00a0ha \u22121 \u00a0y \u22121 and 100\u00a0t\u00a0ha \u22121 every 2\u00a0y) on the quality of a sandy and poorly buffered soil (Fluvisol, pH 6). Chemical characteristics and biodegradability of the labile organic matter, which is mainly derived from microbial biomass and biodegradation products of organic residues, were chosen as indicators for soil quality. The organic C content had reached a maximal value (30.6\u00a0g\u00a0C\u00a0kg \u22121 in the 100\u00a0t sludge-treated soil), i.e. about 2.5 times that in the control. Six years after the last application, the organic C content and the microbial biomass content remained higher in sludge-treated soils than in the control. In contrast, the proportion of labile organic matter was significantly lower in sludge-treated soils than in manure-treated and control soils. The labile organic matter of sludge extracts appeared less humified than that of manure-treated and control soils.", "keywords": ["2. Zero hunger", "Sandy soils", "04 agricultural and veterinary sciences", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "15. Life on land", "630", "Soil quality", "6. Clean water", "12. Responsible consumption", "[SDV.EE] Life Sciences [q-bio]/Ecology", " environment", "[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry", "[SDV.EE]Life Sciences [q-bio]/Ecology", "[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry", "11. Sustainability", "Farmyard manure", "Zn", "0401 agriculture", " forestry", " and fisheries", "Labile organic matter", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "Sewage sludge", "environment", "Cu", "Pb"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2004.08.025"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2004.08.025", "name": "item", "description": "10.1016/j.soilbio.2004.08.025", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2004.08.025"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-04-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.04.028", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:48Z", "type": "Journal Article", "created": "2007-05-31", "title": "Long-Term Exposure To Zn-Spiked Sewage Sludge Alters Soil Community Structure", "description": "Abstract An 8 year study to investigate the effects of Zn-spiked sewage sludge additions on the microbial community structure and microbial processes was carried out in a field soil under pasture. The microbial community structure was evaluated using a combination of multiplex-terminal restriction fragment length polymorphism (M-TRFLP) and T-RFLP fingerprinting approaches. Soil respiration, microbial biomass and enzymatic activities were measured as indicators of soil microbial processes. Changes in the microbial community structure, with Zn additions were evident in all the microbial groups investigated (bacteria, fungi, archaea, actinobacteria and rhizobia/agrobacteria). The fungal community showed the greatest response to Zn additions compared to the other microbial communities measured. The relative abundance of several fungal terminal restriction fragments (TRFs) significantly increased in high Zn treated treatments, at the expense of others, some of which were lost from T-RFLP profiles completely. These results indicate that metal-spiked sludge application can have long-lasting impacts on the composition of the microbial community in pasture soils. Despite notable changes in community structure there was no significant long-term impact of Zn-spiked sludge applications on microbial respiration, biomass or enzyme activities.", "keywords": ["sludge", "zinc", "sewage", "0401 agriculture", " forestry", " and fisheries", "structure", "04 agricultural and veterinary sciences", "microbial community", "multiplex TRFLP", "6. Clean water", "12. Responsible consumption"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2007.04.028"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2007.04.028", "name": "item", "description": "10.1016/j.soilbio.2007.04.028", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.04.028"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-10-01T00:00:00Z"}}, {"id": "10.1016/j.talanta.2018.09.033", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:07Z", "type": "Journal Article", "created": "2018-09-12", "title": "Assessment of the DGT technique in digestate to fraction twelve trace elements", "description": "This study proposes an evaluation of the diffusive gradients in thin films technique (DGT) for studying trace elements in digested sewage sludge samples. Twelve elements were monitored by Chelex (Al, Cd, Co, Cr (III), Cu, Fe, Mn, Ni, Pb) and zirconia-DGT (As, Mo, Se) samplers exposed from 4\u202fh to 9 days. Twenty-four hours' deployment time was suitable for most of the studied elements. However, short deployment led to insufficient element accumulation or non-establishment of steady state while long deployment (from 18 to 144\u202fh depending on the element) led to saturation of the binding gels and/or competing effects with other major elements. In addition, this study showed that the matrix of the digested sewage sludge lowers the accumulation of some trace elements in the DGT samplers, leading to labile concentrations underestimation of roughly 10-30% (depending on the element). Moreover, compared to the conventional total dissolved elements measurement, DGT technique allowed to quantify 7 out of 12 labile elements whereas only 3 out of 12 dissolved elements were quantified. These results highlight the potential of DGT technique to assess labile trace elements in digestate samples, provided a careful adaptation of the deployment time as well as an evaluation of the matrix effect is performed.", "keywords": ["550", "[SDE.IE]Environmental Sciences/Environmental Engineering", "Matrix interferences", "Speciation", "Metalloids Speciation", "Chemistry (all)", "Biochemistry", "01 natural sciences", "6. Clean water", "Analytical Chemistry", "0104 chemical sciences", "Passive sampling", "[CHIM.ANAL]Chemical Sciences/Analytical chemistry", "Digested sewage sludge", "Metals", "628", "Digested sewage sludge; Matrix interferences; Metalloids; Metals; Passive sampling; Speciation; Analytical Chemistry; Chemistry (all); Biochemistry; Spectroscopy", "Spectroscopy", "Metalloids", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.talanta.2018.09.033"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Talanta", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.talanta.2018.09.033", "name": "item", "description": "10.1016/j.talanta.2018.09.033", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.talanta.2018.09.033"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-01-01T00:00:00Z"}}, {"id": "10.1021/acs.est.0c06687", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:14Z", "type": "Journal Article", "created": "2021-02-10", "title": "Microbial Interactions Drive the Complete Catabolism of the Antibiotic Sulfamethoxazole in Activated Sludge Microbiomes", "description": "Microbial communities are believed to outperform monocultures in the complete catabolism of organic pollutants via reduced metabolic burden and increased robustness to environmental challenges; however, the interaction mechanism in functional microbiomes remains poorly understood. Here, three functionally differentiated activated sludge microbiomes (S1: complete catabolism of sulfamethoxazole (SMX); S2: complete catabolism of the phenyl part of SMX ([phenyl]-SMX) with stable accumulation of its heterocyclic product 3-amino-5-methylisoxazole (3A5MI); A: complete catabolism of 3A5MI rather than [phenyl]-SMX) were enriched. Combining time-series cultivation-independent microbial community analysis, DNA-stable isotope probing, molecular ecological network analysis, and cultivation-dependent function verification, we identified key players involved in the SMX degradation process. Paenarthrobacter and Nocardioides were primary degraders for the initial cleavage of the sulfonamide functional group (-C-S-N- bond) and 3A5MI degradation, respectively. Complete catabolism of SMX was achieved by their cross-feeding. The co-culture of Nocardioides, Acidovorax, and Sphingobium demonstrated that the nondegraders Acidovorax and Sphingobium were involved in the enhancement of 3A5MI degradation. Moreover, we unraveled the internal labor division patterns and connections among the active members centered on the two primary degraders. Overall, the proposed methodology is promisingly applicable and would help generate mechanistic, predictive, and operational understanding of the collaborative biodegradation of various contaminants. This study provides useful information for synthetic activated sludge microbiomes with optimized environmental functions.", "keywords": ["Sulfamethoxazole", "Physiology", "Science Policy", "analysis", "0211 other engineering and technologies", "02 engineering and technology", "Microbiology", "Environmental Sciences not elsewhere classified", "heterocyclic product 3-", "11. Sustainability", "Activated Sludge Microbiomes Microb.", "Acidovorax", "SMX degradation process", "Molecular Biology", "cultivation-dependent function veri.", "phenyl", "Ecology", "Sewage", "Microbiota", "catabolism", "Nocardioide", "Computational Biology", "Cell Biology", "6. Clean water", "Sphingobium", "Anti-Bacterial Agents", "sludge microbiomes", "Infectious Diseases", "Complete", "Biodegradation", " Environmental", "Microbial Interactions Drive", "degrader", "Microbial Interactions", "labor division patterns", "5MI degradation", "Water Pollutants", " Chemical", "Developmental Biology", "Biological Sciences not elsewhere classified"]}, "links": [{"href": "https://pubs.acs.org/doi/pdf/10.1021/acs.est.0c06687"}, {"href": "https://doi.org/10.1021/acs.est.0c06687"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%20%26amp%3B%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1021/acs.est.0c06687", "name": "item", "description": "10.1021/acs.est.0c06687", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1021/acs.est.0c06687"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-02-10T00:00:00Z"}}, {"id": "10.1039/c7ra12316g", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:39Z", "type": "Journal Article", "created": "2018-01-15", "title": "Composition and role of the attached and planktonic microbial communities in mesophilic and thermophilic xylose-fed microbial fuel cells", "description": "A mesophilic (37 \u00b0C) and a thermophilic (55 \u00b0C) two-chamber microbial fuel cell (MFC) were studied and compared for their power production from xylose and the anode-attached, membrane-attached and planktonic microbial communities involved.
", "keywords": ["570", "waste-water", "116 Chemical sciences", "116", "bacterium", "01 natural sciences", "7. Clean energy", "biofilm", "3. Good health", "Chemistry", "sludge", "13. Climate action", "extracellular electron-transfer", "geobacter-sulfurreducens", "electricity-generation", "phylogenetic analyses", "enrichment culture", "performance", "0105 earth and related environmental sciences"]}, "links": [{"href": "http://pubs.rsc.org/en/content/articlepdf/2018/RA/C7RA12316G"}, {"href": "https://doi.org/10.1039/c7ra12316g"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/RSC%20Advances", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1039/c7ra12316g", "name": "item", "description": "10.1039/c7ra12316g", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1039/c7ra12316g"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-01-01T00:00:00Z"}}, {"id": "10.3389/fnut.2016.00019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:16Z", "type": "Journal Article", "created": "2016-06-16", "title": "Drivers Of Plant-Availability Of Phosphorous From Thermally Conditioned Sewage Sludge As Assessed By Isotopic Labeling", "description": "Urban sewage sludge is a potential source of phosphorus (P) for agriculture and represents an alternative way to recycle P as fertilizer. However, the use of thermally conditioned sewage sludge (TCSS) required an accurate assessment of its value as P-fertilizer. This work aimed at assessing the plant-availability of P from TCSS. Uptake of P by a mixture of ryegrass and fescue from TCSS and triple super phosphate (TSP) fertilizers was studied using (32)P-labeling technique in a greenhouse experiment. Phosphorus was applied at the rate of 50\u2009mg P kg(-1).We also conducted incubation experiments considering the same treatments to assess soil microbial respiration. Applications of TCSS and TSP increased plant P uptake that is related to the root P acquisition. The P taken up by plant from soil plant-available P was lower for control compared to TSP or TCSS that was attributed to the increase of root interception of soil P. The contribution of TSP to ryegrass nutrition (Pdff%) was 55% with 22% of the applied P which was taken up by plants (CPU%). The Pdff value for TCSS was 56% with 14% of fertilizer P recovery (CPU%). Shoot biomass and total P uptake from TCSS were lower than those from TSP. As a result, the agronomic effectiveness of TCSS calculated from Pdff value (in comparison with TSP treatment) was 102%, while the AE of TCSS estimated from CPU value (in % TSP) was 64%, which is attributed to microbial activity stimulation inducing P immobilization onto soil constituents and microbial biomass during plant growth. The high C/N ratio of TCSS stimulated soil microbial biomass that competes with plant roots to acquire nutrients, such as P. As a consequence, the P taken up from either native soil or TCSS decreased in similar proportions. The AE value calculated with Pdff% took into account these interactions between soil, plant, and microbial biomass, and is less dependent on operational conditions than the AE value calculated with %Precovery.", "keywords": ["[SDV.SA]Life Sciences [q-bio]/Agricultural sciences", "ryegrass", "recyclage des d\u00e9chets", "microbial P", "soil respiration", "7. Clean energy", "12. Responsible consumption", "ray-grass", "f\u00e9tuque", "waste recycling", "disponibilit\u00e9 en phosphore", "Nutrition", "580", "2. Zero hunger", "P immobilization", "[SDV.SA] Life Sciences [q-bio]/Agricultural sciences", "traitement des boues", "sewage sludge", "04 agricultural and veterinary sciences", "15. Life on land", "fertilizer", "6. Clean water", "plant-available P", "engrais", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "32P-labeling technique"]}, "links": [{"href": "https://doi.org/10.3389/fnut.2016.00019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fnut.2016.00019", "name": "item", "description": "10.3389/fnut.2016.00019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fnut.2016.00019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-06-16T00:00:00Z"}}, {"id": "10.1128/aem.02209-19", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:52Z", "type": "Journal Article", "created": "2019-12-04", "title": "Casimicrobium huifangae gen. nov., sp. nov., a Ubiquitous \u201cMost-Wanted\u201d Core Bacterial Taxon from Municipal Wastewater Treatment Plants", "description": "The activated sludge process is the most widely applied biotechnology and is one of the best ecosystems to address microbial ecological principles. Yet, the cultivation of core bacteria and the exploration of their physiology and ecology are limited. In this study, the core and novel bacterial taxon C. huifangae was cultivated and characterized. This study revealed that C. huifangae functioned as an important module hub in the activated sludge microbiome, and it potentially plays an important role in municipal wastewater treatment plants.
", "keywords": ["0301 basic medicine", "activated sludge microbiome", "DATABASE", "DIVERSITY", "nitrogen and phosphorus removal", "GENOME ANNOTATION", "POLYPHOSPHATE-ACCUMULATING ORGANISMS", "12. Responsible consumption", "ACTIVATED-SLUDGE", "03 medical and health sciences", "SEARCH", "RNA", " Ribosomal", " 16S", "11. Sustainability", "microbial network", "Phylogeny", "WWTP", "0303 health sciences", "IDENTIFICATION", "Sewage", "Microbiota", "Betaproteobacteria", "core taxa", "15. Life on land", "6. Clean water", "COMMUNITY", "RNA", " Bacterial", "Casimicrobium huifangae", "13. Climate action", "Earth and Environmental Sciences", "BIOLOGICAL PHOSPHORUS REMOVAL", "municipal wastewater treatment plant", "CARBON SOURCE"]}, "links": [{"href": "https://journals.asm.org/doi/pdf/10.1128/AEM.02209-19"}, {"href": "https://doi.org/10.1128/aem.02209-19"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Applied%20and%20Environmental%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1128/aem.02209-19", "name": "item", "description": "10.1128/aem.02209-19", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1128/aem.02209-19"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-02-03T00:00:00Z"}}, {"id": "10.14716/ijtech.v13i3.4886", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:12Z", "type": "Journal Article", "created": "2022-07-01", "title": "Impact of Temperature and Coagulants on Sludge Dewaterability", "description": "Temperature and coagulant types have an important impact on the quantity and quality of the residue (sludge) in water and wastewater treatment processes. Temperature influences water viscosity and the distribution of the coagulant in water. Coagulants can promote the agglomeration of fine particles into larger flocs so that they can be more easily separated from the water. Experiments have been conducted to explore the relationship between temperature (16-26\u00b0C), the type of coagulant, and sludge dewaterability (estimated using the capillary suction time (CST)). Alum, Ferric, and Moringa oleifera Lam were used as coagulants. The influences of different mixer shapes, turbidity values, and flocs sizes on sludge dewaterability have been assessed. The results show that ferric chloride was unaffected by temperature, whereas alum and M. oleifera performances were influenced by temperature. CST results using the coagulant ferric chloride, regardless of mixer shape, turbidity, and floc size, were insensitive to temperature differences.", "keywords": ["Technology", "T", "coagulants", "T1-995", "temperatures.", "sludge dewaterability", "01 natural sciences", "Technology (General)", "6. Clean water", "capillary suction time", "floc sizes", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Fitria, Dewi, Scholz, Miklas, Swift, Gareth M, Al-Faraj, Furat,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.14716/ijtech.v13i3.4886"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/International%20Journal%20of%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.14716/ijtech.v13i3.4886", "name": "item", "description": "10.14716/ijtech.v13i3.4886", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.14716/ijtech.v13i3.4886"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-01T00:00:00Z"}}, {"id": "10.17221/200/2009-pse", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:27Z", "type": "Journal Article", "created": "2018-02-10", "title": "Mineral And Organic Fertilization Efficiency In Long-Term Stationary Experiments", "description": "In long-term stationary experiments under different soil-climatic conditions, an influence of mineral and organic fertilization on yield of winter wheat, spring barley and potato tubers was evaluated. Statistically significantly lowest grain yields of winter wheat (4.00 t/ha) and spring barley (2.81 t/ha) were obtained in non-fertilized plots at all experimental sites. In the case of potatoes, the lowest yield of dry matter (5.71 t/ha) was recorded in the control plot, but the result was not statistically significant. The manure-fertilized plot gave the average yield of wheat higher by 30%, of barley by 22%. Application of sewage sludge resulted in wheat yield higher by 41% and barley yield higher by 26% over control. On average, application of sewage sludge and manure increased the yield of potatoes by 30% over control. The highest yield was obtained after application of mineral fertilizers; average yield increased by 59, 50 and 36% in winter wheat, spring barley and potatoes, respectively. No statistically significant differences among the plots with mineral fertilizers were observed. At different sites, the yield of studied crops varied; however, the effect of fertilization on yield increments was similar at all experimental sites except for Lukavec. It is the site with the lowest natural soil fertility, and it showed the highest effect of the applied fertilizers.", "keywords": ["long-term field experiment", "2. Zero hunger", "0106 biological sciences", "sewage sludge", "mineral fertilizers", "Plant culture", "04 agricultural and veterinary sciences", "01 natural sciences", "spring barley", "6. Clean water", "winter wheat", "SB1-1110", "manure", "0401 agriculture", " forestry", " and fisheries", "potatoes"], "contacts": [{"organization": "V. Nedv\u011bd, Ji\u0159\u00ed Bal\u00edk, K. \u010c\u00e1sov\u00e1, J. \u010cern\u00fd, M. Kulh\u00e1nek,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.17221/200/2009-pse"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%2C%20Soil%20and%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.17221/200/2009-pse", "name": "item", "description": "10.17221/200/2009-pse", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.17221/200/2009-pse"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-01-31T00:00:00Z"}}, {"id": "10.3390/pr9030491", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:32Z", "type": "Journal Article", "created": "2021-03-09", "title": "Sequential Hydrothermal Processing of Sewage Sludge to Produce Low Nitrogen Biocrude", "description": "A hydrothermal pre-treatment has been developed to improve sewage sludge quality or to produce low nitrogen biocrude via hydrothermal liquefaction (HTL) in a subsequent step. The mild hydrothermal pre-treatment (150 \uffc2\uffb0C) step was performed with deionized water, sulfuric acid (0.5 M), or citric acid (0.5 M) to solubilize nitrogen containing compounds in the aqueous supernatant. Downstream, the residual solid material was liquefied with the addition of sodium carbonate via hydrothermal liquefaction (350 \uffc2\uffb0C). The pre-treatment with citric acid transferred up to 66.7 wt. % of nitrogen into the aqueous supernatant, while 62.0 wt. % of carbon was recovered in the solid. Due to the pre-treatment lipids retained in the sewage sludge solid, which increased the favored biocrude yield up to 42.9 wt. % and the quality evaluating value H/Ceff ratio significantly to 1.48. Multi-method characterization of the resulted biocrude samples showed a lower concentration of N-heterocycles, while long-chain aliphatics and free fatty acid are increased.
", "keywords": ["Technology", "ddc:600", "sewage sludge", "nitrogen extraction", "info:eu-repo/classification/ddc/600", "600", "sequential hydrothermal liquefaction", "hydrothermal hydrolysis", "pre-treatment", "6. Clean water", "12. Responsible consumption"]}, "links": [{"href": "http://www.mdpi.com/2227-9717/9/3/491/pdf"}, {"href": "https://www.mdpi.com/2227-9717/9/3/491/pdf"}, {"href": "https://doi.org/10.3390/pr9030491"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Processes", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/pr9030491", "name": "item", "description": "10.3390/pr9030491", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/pr9030491"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-03-09T00:00:00Z"}}, {"id": "10.3390/agronomy11030427", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:20Z", "type": "Journal Article", "created": "2021-02-26", "title": "Differing Phosphorus Crop Availability of Aluminium and Calcium Precipitated Dairy Processing Sludge Potential Recycled Alternatives to Mineral Phosphorus Fertiliser", "description": "The European dairy industry generates large volumes of wastewater from milk and dairy food processing. Removal of phosphorus (P) by complexing with metal (e.g., aluminium, calcium) cations in P rich sludge is a potential P source for agricultural reuse and P recycling. However, there is a significant knowledge gap concerning the plant availability of this complexed P in comparison to conventional mineral P fertiliser. The current absence of information on plant P bioavailability of dairy processing sludge (DPS) limits the ability of farmers and nutrient management advisors to incorporate it correctly into fertiliser programmes. The present study examined the most common types of dairy sludge\uffe2\uff80\uff94(1) aluminium-precipitated sludge (\uffe2\uff80\uff9cAl-DPS\uffe2\uff80\uff9d) and (2) calcium-precipitated lime-stabilised sludge (\uffe2\uff80\uff9cCa-DPS\uffe2\uff80\uff9d) at field scale to assess P availability in grassland versus mineral P fertiliser over a growing season. The experimental design was a randomised complete block with five replications. Crop yield and P uptake were assessed for 4 harvests. The initial soil test P was at a low level and the experimental treatments were super phosphate at 15, 30, 40, 50 and 60 kg P ha\uffe2\uff88\uff921, two dairy sludge applied at 40 kg P ha\uffe2\uff88\uff921 (comparison was made with mineral P at same application rate) and a zero P control applied in a single application at the beginning of the growing season. Results showed a significant positive slope in the relationship between P uptake response and mineral P application rate indicating the suitability of the experimental site for P availability assessment. The P bioavailability of Al- and Ca-DPS varied greatly between treatments. The P fertiliser replacement value based on the 1st harvest was 50 and 16% increased to 109 and 31% cumulatively over the four harvests for Al- and Ca-DPS, respectively. The Al concentration in Al-DPS did not limit P bioavailability, but low P bioavailability from Ca-DPS can be associated with its high Ca content that can lead to formation of low soluble Ca-P compounds at alkaline pH conditions with a high Ca/P ratio. These findings show that P availability from dairy sludge can be quite different depending on treatment process. Consequently, it is critical to have P availability information as well as total P content available to ensure the application rate meets crop requirements without creating environmental risk by over application.
", "keywords": ["fertiliser replacement value", "2. Zero hunger", "soil test P", "S", "dairy processing sludge", "phosphorus bioavailability", "Agriculture", "04 agricultural and veterinary sciences", "crop yield", "01 natural sciences", "6. Clean water", "12. Responsible consumption", "Earth and Environmental Sciences", "N use efficiency", "0401 agriculture", " forestry", " and fisheries", "grassland", "0105 earth and related environmental sciences"]}, "links": [{"href": "http://www.mdpi.com/2073-4395/11/3/427/pdf"}, {"href": "https://www.mdpi.com/2073-4395/11/3/427/pdf"}, {"href": "https://doi.org/10.3390/agronomy11030427"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agronomy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/agronomy11030427", "name": "item", "description": "10.3390/agronomy11030427", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/agronomy11030427"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-02-26T00:00:00Z"}}, {"id": "10.3390/agronomy11071374", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:21Z", "type": "Journal Article", "created": "2021-07-07", "title": "The Potential of Digestate and the Liquid Fraction of Digestate as Chemical Fertiliser Substitutes under the RENURE Criteria", "description": "This study assessed how digestate and the liquid fraction (LF) of digestate would perform as candidate RENURE fertilisers (recovered nitrogen from manure) in nitrate vulnerable zones under the proposed criteria of the Joint Research Centre, namely, (i) a mineral nitrogen to total nitrogen ratio \uffe2\uff89\uffa5 90% (Nmin:TN \uffe2\uff89\uffa5 90%) or a total organic carbon to TN ratio \uffe2\uff89\uffa4 3 (TOC:TN \uffe2\uff89\uffa4 3); (ii) limits of \uffe2\uff89\uffa4300 copper (Cu) mg kg\uffe2\uff88\uff921 and \uffe2\uff89\uffa4800 Zinc (Zn) mg kg\uffe2\uff88\uff921. These criteria were applied to unpublished data (n = 2622) on digestate compositional properties, further amended with data from the literature (n = 180); digestate analysis from seven full-scale biogas facilities (n = 14); and biogas industry stakeholders (n = 23). The results showed that Cu and Zn mostly met the criteria, with compliance rates of 94.7% (of 1035 entries) and 95.0% (of 1038 entries), respectively. Just above 5% (of 1856 entries) met the Nmin/TN \uffe2\uff89\uffa5 90% criterion, while 36% (of 1583 entries) met the TOC/TN \uffe2\uff89\uffa4 3 criterion, while total compliance was 32% (of 1893 entries). When targeting the LF, total compliance increased noticeably, between 43 and 58% depending on DM range, indicating that LFs are better suited RENURE candidate fertilisers than unseparated digestate.
", "keywords": ["Agriculture and Food Sciences", "AMENDMENT PROPERTIES", "RENURE", "liquid fraction", "SEWAGE-SLUDGE", "NITROUS-OXIDE EMISSIONS", "ANAEROBIC CO-DIGESTION", "SAFEMANURE", "7. Clean energy", "NUTRIENT RECOVERY PROCESSES", "NUE", "USE EFFICIENCY", "BIOGAS PRODUCTION", "ORGANIC FRACTION", "S", "circular economy", "Agriculture", "04 agricultural and veterinary sciences", "6. Clean water", "Nitrates Directive", "NFRV", "MINERAL FERTILIZERS", "Earth and Environmental Sciences", "digestate", "manure", "CATTLE SLURRY", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "http://www.mdpi.com/2073-4395/11/7/1374/pdf"}, {"href": "https://doi.org/10.3390/agronomy11071374"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agronomy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/agronomy11071374", "name": "item", "description": "10.3390/agronomy11071374", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/agronomy11071374"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-07-07T00:00:00Z"}}, {"id": "10.3390/en14123488", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:24Z", "type": "Journal Article", "created": "2021-06-11", "title": "Bio\u2010crude production through recycling of pretreated aqueous phase via activated carbon", "description": "The management and optimization of the aqueous phase are the major challenges that hinder the promotion of hydrothermal liquefaction (HTL) technology on a commercial scale. Recently, many studies reported about the accumulation of the N-content in the bio-crude with continuous recycling of the aqueous phase from high protein-containing biomass. In the present study, sewage sludge was processed at 350 \uffc2\uffb0C in an autoclave. The produced aqueous phase was treated with activated carbon, and its subsequent recycling effect on the properties of the bio-crude and aqueous phase was investigated. By contacting the aqueous phase with activated carbon, 38\uffe2\uff80\uff9343% of the total nitrogen was removed from the aqueous phase. After applying the treated aqueous phase recycling, the energy recovery of the bio-crude increased from 50 to 61% after three rounds of recycling. From overall carbon/nitrogen recoveries, 50 to 56% of the carbon was transferred to the bio-crude phase and more than 50% of the nitrogen remained in the aqueous phase. The aqueous phase contained mostly of N&O-heterocyclic compounds, small chain organic acids, and amides. ICP-AES analysis showed that more than 80% of the inorganic elements were concentrated into the solid phase.
", "keywords": ["Technology", "sewage sludge", "Activated carbon", "Aqueous phase recycling", "T", "Bio\u2010crude", "0211 other engineering and technologies", "02 engineering and technology", "6. Clean water", "12. Responsible consumption", "aqueous phase recycling", "HTL", "13. Climate action", "0202 electrical engineering", " electronic engineering", " information engineering", "activated carbon", "Sewage sludge", "bio-crude", "aqueous phase recycling; sewage sludge; activated carbon; HTL; bio-crude"]}, "links": [{"href": "http://www.mdpi.com/1996-1073/14/12/3488/pdf"}, {"href": "https://www.mdpi.com/1996-1073/14/12/3488/pdf"}, {"href": "https://doi.org/10.3390/en14123488"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Energies", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/en14123488", "name": "item", "description": "10.3390/en14123488", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/en14123488"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-06-11T00:00:00Z"}}, {"id": "10.5281/zenodo.15827291", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:22:26Z", "type": "Journal Article", "created": "2022-07-01", "title": "Impact of Temperature and Coagulants on Sludge Dewaterability", "description": "Temperature and coagulant types have an important impact on the quantity and quality of the residue (sludge) in water and wastewater treatment processes. Temperature influences water viscosity and the distribution of the coagulant in water. Coagulants can promote the agglomeration of fine particles into larger flocs so that they can be more easily separated from the water. Experiments have been conducted to explore the relationship between temperature (16-26\u00b0C), the type of coagulant, and sludge dewaterability (estimated using the capillary suction time (CST)). Alum, Ferric, and Moringa oleifera Lam were used as coagulants. The influences of different mixer shapes, turbidity values, and flocs sizes on sludge dewaterability have been assessed. The results show that ferric chloride was unaffected by temperature, whereas alum and M. oleifera performances were influenced by temperature. CST results using the coagulant ferric chloride, regardless of mixer shape, turbidity, and floc size, were insensitive to temperature differences.", "keywords": ["Technology", "T", "coagulants", "T1-995", "temperatures.", "sludge dewaterability", "01 natural sciences", "Technology (General)", "6. Clean water", "capillary suction time", "floc sizes", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Fitria, Dewi, Scholz, Miklas, Swift, Gareth M, Al-Faraj, Furat,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.15827291"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/International%20Journal%20of%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.15827291", "name": "item", "description": "10.5281/zenodo.15827291", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.15827291"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-01T00:00:00Z"}}, {"id": "10044/1/108326", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:23:41Z", "type": "Journal Article", "created": "2023-11-30", "title": "Do contaminants compromise the use of recycled nutrients in organic agriculture? A review and synthesis of current knowledge on contaminant concentrations, fate in the environment and risk assessment", "description": "Use of nutrients recycled from societal waste streams in agriculture is part of the circular economy, and in line with organic farming principles. Nevertheless, diverse contaminants in waste streams create doubts among organic farmers about potential risks for soil health. Here, we gather the current knowledge on contaminant levels in waste streams and recycled nutrient sources, and discuss associated risks. For potentially toxic elements (PTEs), the input of zinc (Zn) and copper (Cu) from mineral feed supplements remains of concern, while concentrations of PTEs in many waste streams have decreased substantially in Europe. The same applies to organic contaminants, although new chemical groups such as flame retardants are of emerging concern and globally contamination levels differ strongly. Compared to inorganic fertilizers, application of organic fertilizers derived from human or animal feces is associated with an increased risk for environmental dissemination of antibiotic resistance. The risk depends on the quality of the organic fertilizers, which varies between geographical regions, but farmland application of sewage sludge appears to be a safe practice as shown by some studies (e.g. from Sweden). Microplastic concentrations in agricultural soils show a wide spread and our understanding of its toxicity is limited, hampering a sound risk assessment. Methods for assessing public health risks for organic contaminants must include emerging contaminants and potential interactions of multiple compounds. Evidence from long-term field experiments suggests that soils may be more resilient and capable to degrade or stabilize pollutants than often assumed. In view of the need to source nutrients for expanding areas under organic farming, we discuss inputs originating from conventional farms vs. non-agricultural (i.e. societal) inputs. Closing nutrient cycles between agriculture and society is feasible in many cases, without being compromised by contaminants, and should be enhanced, aided by improved source control, waste treatment and sound risk assessments.", "keywords": ["Organic farming", "SEWAGE-SLUDGE", "LONG-TERM IMPACT", "PATHOGENIC BACTERIA", "Environmental Sciences & Ecology", "Risk Assessment", "630", "Societal wastes", "12. Responsible consumption", "Organic contaminants", "Soil", "PRE-APPLICATION TREATMENT", "HEAVY-METALS", "ANAEROBIC-DIGESTION", "11. Sustainability", "Animals", "Humans", "Soil Pollutants", "Fertilizers", "Risk assessment", "2. Zero hunger", "Organic Agriculture", "Science & Technology", "Sewage", "ANTIBIOTIC-RESISTANCE GENES", "FERTILIZER VALUE", "SOIL DYNAMICS", "Agriculture", "Nutrients", "15. Life on land", "6. Clean water", "13. Climate action", "BACTERIAL COMMUNITIES", "Life Sciences & Biomedicine", "Plastics", "Environmental Sciences"]}, "links": [{"href": "https://doi.org/10044/1/108326"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10044/1/108326", "name": "item", "description": "10044/1/108326", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10044/1/108326"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-02-01T00:00:00Z"}}, {"id": "94a0da82-5edb-4172-b67b-fcb01ed7be81", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[10.61, 55.14], [10.61, 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BonaRes Data Centre www.bonares.de. The 'Plant availability of recycled P-fertilizers - pot experiment' data were created as part of InnoSoilPhos-Project research activities. Although every care has been taken in preparing and testing the data, BonaRes InnoSoilPhos-Project and BonaRes Data Centre cannot guarantee that the data are correct; neither does BonaRes InnoSoilPhos-Project and BonaRes Data Centre accept any liability whatsoever for any error, missing data or omission in the data, or for any loss or damage arising from its use. The BonaRes InnoSoilPhos-Project and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data. The access to this data is restricted during embargo time. If prior access is requested, contact the data owner/author.", "updated": "2024-02-19", "type": "Dataset", "created": "2017-08-03", "language": "ger", "title": "Plant availability of recycled P -fertilizers - pot experiment", "description": "Following P fertilisers were tested: Triple superphosphate (TSP) = highly water soluble mineral fertiliser; bone char (BC) = non-soluble high P containing, clean P resource; surface-modified bone char (BCplus) = predicted higher P solubility than BC through surface modification; thermo-chemically treated sewage sludge ash (SSA); and struvite from municipal waste water treatment (MAP). Fertiliser effects were evaluated in a pot experiment planted with annual rye grass. In each pot 280 mg of P were added into 6 kg (DM) of an acidic (pH 5.2) sandy silt soil with initially low amounts of available P (24.2 mg kg-1 PCAL). Zero and TSP fertilisation served as control in the completely randomized block experiment with four replicates. An incubation period of between 0 days and 8 weeks in fortnightly steps was implemented. The P uptake of annual rye grass was only slightly influenced by the incubation time of the fertilisers in soil. The relative agronomic efficiency (RAE) shows that MAP performed equally or better than TSP (RAE = 100 %). BCplus had an average RAE of 87 %, with a high variation between the incubation times. The RAE of SSA seemed to decrease constantly with incubation time. 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