{"type": "FeatureCollection", "features": [{"id": "10.1007/s13762-013-0250-z", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:15:15Z", "type": "Journal Article", "created": "2013-03-25", "title": "A poly-\u03b5-caprolactone based biofilm carrier for nitrate removal from water", "description": "Nitrate removal from water has been accomplished by heterotrophic biofilms using organic carbon as a source of reducing power. To overcome the natural limitation in organic carbon in water, a poly-e-caprolactone based biofilm carrier that serves simultaneously as a biofilm carrier and as a source of organic carbon was developed and tested in the present work. The feasibility of the new biofilm carrier for nitrate removal from water was evaluated in a packed bed reactor. The combination of size and structure provided a carrier element having high surface area and void volume, 1,170\u00a0m2/m3 and 67\u00a0%, respectively. A maximum denitrification rate of 4.4\u00a0mg\u00a0N\u2013NO3                 \u2212/(L.h) (9.2\u00a0mg\u00a0N\u2013NO3                 \u2212/(m2.h)) was achieved in the packed bed reactor at 20\u00a0\u00b0C and pH 7.0. Main advantages of the biofilm carrier developed in the present work are its mechanical stability in water even after biofilm formation and controlled release of organic carbon by enzymatic reactions. The proposed biotechnology to remove nitrate from groundwater is robust and easy to operate.", "keywords": ["Science & Technology", "Biofilm", "0207 environmental engineering", "02 engineering and technology", "Biofilm reactor", "01 natural sciences", "6. Clean water", "Solid carbon source", "Biofilters", "Biodegradable polymer", "Denitrification", "Packed bed reactor", "Tratamento de \u00e1guas residuais", "0105 earth and related environmental sciences"]}, "links": [{"href": "http://link.springer.com/content/pdf/10.1007/s13762-013-0250-z"}, {"href": "https://doi.org/10.1007/s13762-013-0250-z"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/International%20Journal%20of%20Environmental%20Science%20and%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s13762-013-0250-z", "name": "item", "description": "10.1007/s13762-013-0250-z", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s13762-013-0250-z"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-03-26T00:00:00Z"}}, {"id": "10.1021/acs.est.4c10664", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:16:52Z", "type": "Journal Article", "created": "2025-04-18", "title": "An Analytical Workflow to Quantify Biodegradable Polyesters in Soils and Its Application to Incubation Experiments", "description": "Open AccessSoil biodegradable polyesters are designed to undergo to microbial utilization in aerobic soils, forming carbon dioxide and microbial biomass. These polyesters are thus viable substitutes for conventional, persistent polymers (e.g., polyethylene) in specific applications for which the transfer of some of the polymers into the soil is inevitable. While polymer biodegradability is often assessed in laboratory incubations using respirometric analysis of formed CO2, approaches to accurately quantify biodegradable polyesters in soils and to track their mass loss in field incubations over time remain missing. This study first introduces an analytical workflow combining Soxhlet extraction with proton nuclear magnetic resonance spectroscopy for the accurate, high-throughput, and chemically selective quantification of eight commercially important biodegradable polyesters (i.e., poly(butylene adipate-co-terephthalate), polylactic acid, poly(3-hydroxybutyrate-co-3-hydroxyhexanoate), poly(3-hydroxybutyrate-co-3-hydroxyvalerate), polycaprolactone, polybutylene adipate, polybutylene azelate, and polybutylene succinate), and the nonbiodegradable polymer polystyrene, in six soils spanning a range of types and physicochemical properties. This work introduces an effective sample deployment-retrieval approach that, combined with the analytical method, allows the biodegradation of poly(butylene adipate-co-terephthalate) and polylactic acid from a biodegradable mulch film in three agricultural soils to be monitored. In combination, the two parts of this work lay the foundation to accurately quantify and monitor biodegradable polymers in soils.", "keywords": ["Soxhlet extraction", "Soxhlet extraction; biodegradable polymer; biodegradation; soil; H-1-NMR; mulch film", "biodegradable polymer", "biodegradation", "H-1-NMR", "mulch film", "soil"], "contacts": [{"organization": "Mattia Cerri, Flora Wille, Silvan Arn, Thomas D. Bucheli, Franco Widmer, Rhayn Werz, Kristopher McNeill, Alessandro Manfrin, Michael Sander,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1021/acs.est.4c10664"}, {"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.4c10664", "name": "item", "description": "10.1021/acs.est.4c10664", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1021/acs.est.4c10664"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-04-18T00:00:00Z"}}, {"id": "10.2139/ssrn.4646130", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:19:00Z", "type": "Journal Article", "created": "2023-11-28", "title": "Microplastic Analysis in Soils: A Comparative Assessment", "description": "Open AccessISSN:0147-6513", "keywords": ["ddc:550", "Soil pollution", "Spectroscopy; Soil pollution; Conventional synthetic and biodegradable; polymers", "Conventional synthetic and biodegradable", "Environmental pollution", "543", "Environmental sciences", "TD172-193.5", "628", "Life Science", "GE1-350", "Conventional synthetic and biodegradable polymers", "Spectroscopy", "polymers"]}, "links": [{"href": "https://doi.org/10.2139/ssrn.4646130"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecotoxicology%20and%20Environmental%20Safety", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2139/ssrn.4646130", "name": "item", "description": "10.2139/ssrn.4646130", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2139/ssrn.4646130"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-01-01T00:00:00Z"}}, {"id": "20.500.11850/711438", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:22:32Z", "type": "Journal Article", "created": "2023-11-28", "title": "Microplastic Analysis in Soils: A Comparative Assessment", "description": "Microplastic (MiP) contamination poses environmental risks, but harmonizing data from different quantification methods and sample matrices remains challenging. We compared analytical protocols for MiP quantification in soil, consisting of Digital, Fluorescence, Fourier-transform infrared (FTIR), and Raman Microscopy as well as quantitative Pyrolysis-Gas Chromatography-Mass Spectroscopy (Py-GC-MS) and 1-proton nuclear magnetic resonance (1H NMR) spectroscopy as detection techniques. Each technique was coupled with a specific extraction procedure and evaluated for three soils with different textures and organic carbon contents, amended with eight types of large MiPs (0.5\u20131 mm) \u2013 high- and low-density polyethylene (HDPE and LDPE), polypropylene (PP), polystyrene (PS), polyamide (PA), polyethylene terephthalate (PET), polyvinyl chloride (PVC), and a biodegradable mulch film product composed of polybutylene adipate-co-terephthalate/ polylactic acid (PBAT/ PLA). In addition, we included two types of small MiPs (20\u2013250 \u00b5m) composed of either LDPE or PBAT/ PLA in the tests. The results showed that protocols for Digital, Fluorescence, and ATR-FTIR microscopy recovered 74\u201398 % of the large MiPs, with fluorescence yielding the highest recoveries. Raman spectroscopy was most sensitive to soil organic matter residues, requiring more sophisticated sample pretreatment. Fluorescence staining with subsequent Fluorescence microscopy detection effectively recovered most small-sized LDPE-MiP but missed 56\u201393 % of small PBAT/ PLA particles. For the latter, reliable quantification was achieved only using Soxhlet extraction combined with 1H NMR spectroscopic quantification. Pyrolysis-GC-MS showed intermediate results, displaying low sensitivity to plastic type and lower recoveries as soil clay content increased. We conclude that different methods have different sensitivities for different MiP materials in different soils, i.e. comparisons of MiP loads and threshold settings for MiP loads across methodologies require careful consideration. Yet, our data indicate that adding stained large MiP as an internal standard could enhance extraction control, while Soxhlet-extraction with subsequent 1H NMR analysis is most powerful for controlling future thresholds of small MiP from biodegradable materials.", "keywords": ["ddc:550", "Soil pollution", "Spectroscopy; Soil pollution; Conventional synthetic and biodegradable; polymers", "Conventional synthetic and biodegradable", "Environmental pollution", "543", "Environmental sciences", "TD172-193.5", "628", "Life Science", "GE1-350", "Conventional synthetic and biodegradable polymers", "Spectroscopy", "polymers"]}, "links": [{"href": "https://doi.org/20.500.11850/711438"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecotoxicology%20and%20Environmental%20Safety", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "20.500.11850/711438", "name": "item", "description": "20.500.11850/711438", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/20.500.11850/711438"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-01-01T00:00:00Z"}}, {"id": "20.500.11850/733344", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:22:32Z", "type": "Journal Article", "created": "2025-04-18", "title": "An Analytical Workflow to Quantify Biodegradable Polyesters in Soils and Its Application to Incubation Experiments", "description": "Soil biodegradable polyesters are designed to undergo to microbial utilization in aerobic soils, forming carbon dioxide and microbial biomass. These polyesters are thus viable substitutes for conventional, persistent polymers (e.g., polyethylene) in specific applications for which the transfer of some of the polymers into the soil is inevitable. While polymer biodegradability is often assessed in laboratory incubations using respirometric analysis of formed CO2, approaches to accurately quantify biodegradable polyesters in soils and to track their mass loss in field incubations over time remain missing. This study first introduces an analytical workflow combining Soxhlet extraction with proton nuclear magnetic resonance spectroscopy for the accurate, high-throughput, and chemically selective quantification of eight commercially important biodegradable polyesters (i.e., poly(butylene adipate-co-terephthalate), polylactic acid, poly(3-hydroxybutyrate-co-3-hydroxyhexanoate), poly(3-hydroxybutyrate-co-3-hydroxyvalerate), polycaprolactone, polybutylene adipate, polybutylene azelate, and polybutylene succinate), and the nonbiodegradable polymer polystyrene, in six soils spanning a range of types and physicochemical properties. This work introduces an effective sample deployment-retrieval approach that, combined with the analytical method, allows the biodegradation of poly(butylene adipate-co-terephthalate) and polylactic acid from a biodegradable mulch film in three agricultural soils to be monitored. In combination, the two parts of this work lay the foundation to accurately quantify and monitor biodegradable polymers in soils.", "keywords": ["Soil", "Biodegradation", " Environmental", "Soxhlet extraction", "Polyesters", "Soxhlet extraction; biodegradable polymer; biodegradation; soil; H-1-NMR; mulch film", "biodegradable polymer", "biodegradation", "H-1-NMR", "mulch film", "soil"]}, "links": [{"href": "https://doi.org/20.500.11850/733344"}, {"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": "20.500.11850/733344", "name": "item", "description": "20.500.11850/733344", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/20.500.11850/733344"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-04-18T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Biodegradable+polymer&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Biodegradable+polymer&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Biodegradable+polymer&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Biodegradable+polymer&offset=5", "hreflang": "en-US"}], "numberMatched": 5, "numberReturned": 5, "distributedFeatures": [], "timeStamp": "2026-09-23T14:06:38.252353Z"}