{"type": "FeatureCollection", "features": [{"id": "10.1007/s12649-017-9910-4", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:15:43Z", "type": "Journal Article", "created": "2017-03-25", "title": "Possibilities of Using Liquids from Slow Pyrolysis and Hydrothermal Carbonization in Acidification of Animal Slurry", "description": "Pyrolysis and hydrothermal carbonization (HTC) are gaining increasing interest in the context of biomass valorization. However, these processes yield a liquid fraction with an acidic pH value challenging to productize. In this paper, the possibility of replacing concentrated acids in acidification of animal slurry with organic acids derived from thermochemical conversion of various biomasses was investigated. The acid composition of four pyrolysis and one HTC liquid fraction were characterized using capillary electrophoresis and their total acidity determined titrimetrically. The amount of each liquid needed to reduce the pH of pig and cattle slurries to 6.0 and 5.5 were recorded. The total acidity of pyrolysis liquids varied highly (850-2560 meq l<sup>-1</sup>) depending on the biomass. For HTC liquid the total acidity was low (220 meq l<sup>-1</sup>). The most concentrated liquid, which showed greatest potential for practical use, was derived from pyrolysis of willow wood. Its required application rate for decreasing the pH of the slurries from &gt;7.5 to 6.0 was 20-50 l t<sup>-1</sup>. This study suggests that there is a possibility of using liquids from pyrolysis process for acidification of animal slurries. Producing more concentrated liquids, further concentration of these acidiferous streams and the effects of the liquid addition on the properties of slurry are worth further studying.", "keywords": ["ta412", "600", "02 engineering and technology", "kuivatislaus", "pyrolysis", "01 natural sciences", "hydrothermal carbonization", "acidification", "13. Climate action", "happamoituminen", "0202 electrical engineering", " electronic engineering", " information engineering", "SDG 7 - Affordable and Clean Energy", "ta116", "animal slurry", "0105 earth and related environmental sciences"]}, "links": [{"href": "http://link.springer.com/content/pdf/10.1007/s12649-017-9910-4.pdf"}, {"href": "https://doi.org/10.1007/s12649-017-9910-4"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Waste%20and%20Biomass%20Valorization", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s12649-017-9910-4", "name": "item", "description": "10.1007/s12649-017-9910-4", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s12649-017-9910-4"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-03-25T00:00:00Z"}}, {"id": "10.1016/j.biortech.2017.03.095", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:16:16Z", "type": "Journal Article", "created": "2017-03-20", "title": "Hydrothermal treatment followed by enzymatic hydrolysis and hydrothermal carbonization as means to valorise agro- and forest-based biomass residues", "description": "The suitability of several abundant but underutilized agro and forest based biomass residues for hydrothermal treatment followed by enzymatic hydrolysis as well as for hydrothermal carbonization was studied. The selected approaches represent simple biotechnical and thermochemical treatment routes suitable for wet biomass. Based on the results, the hydrothermal pre-treatment followed by enzymatic hydrolysis seemed to be most suitable for processing of carbohydrate rich corn leaves, corn stover, wheat straw and willow. High content of thermally stable components (i.e. lignin) and low content of ash in the biomass were advantageous for hydrothermal carbonization of grape pomace, coffee cake, Scots pine bark and willow.", "keywords": ["2. Zero hunger", "biomass", "Hydrolysis", "ta220", "0211 other engineering and technologies", "02 engineering and technology", "Forests", "15. Life on land", "enzyme hydrolysis", "Lignin", "Zea mays", "01 natural sciences", "7. Clean energy", "hydrothermal carbonization", "hydrothermal treatment", "lignocellulose", "13. Climate action", "ta219", "SDG 7 - Affordable and Clean Energy", "Biomass", "ta218", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.biortech.2017.03.095"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Bioresource%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.biortech.2017.03.095", "name": "item", "description": "10.1016/j.biortech.2017.03.095", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.biortech.2017.03.095"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-07-01T00:00:00Z"}}, {"id": "10.1111/gcbb.12158", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:19:27Z", "type": "Journal Article", "created": "2014-02-05", "title": "Effect Of Physical Weathering On The Carbon Sequestration Potential Of Biochars And Hydrochars In Soil", "description": "Abstract<p>Physical weathering can modify the stability of biochar after field exposure. The aim of our study was to determine the potential carbon sequestration of the two chars at different timescales. We investigated the modification in composition and stability resulting from physical weathering of two different chars produced (i) at low temperature (250\uffc2\uffa0\uffc2\uffb0C) by hydrothermal carbonization (HTC); and (ii) at high temperature (1200\uffc2\uffa0\uffc2\uffb0C) by gasification (GS) using contrasting feedstocks. Physical weathering of HTC and GS placed on a water permeable canvas was performed through successive wetting/drying and freezing/thawing cycles. Carbon loss was assessed by mass balance. Chemical stability of the remaining material was evaluated as resistance to acid dichromate oxidation, and biological stability was assessed during laboratory incubation. Moreover, we assessed modification in potential priming effects due to physical weathering. Physical weathering induced a carbon loss ranging between 10 and 40% of the total C mass depending on the feedstock. This C loss is most probably related to leaching of small particulate and dissolved compounds. GS produced from maize silage showed the highest C loss. The chemical stability of HTC and GS was unaffected by physical weathering. In contrast, physical weathering strongly increased the biological stability of HTC and GS char produced from maize silage. After physical weathering, the half\uffe2\uff80\uff90life (t1/2) of GS was doubled but only slight increase was noted for those of HTC. During the first weeks of incubation, HTC addition to soil stimulated native soil organic matter (SOM) mineralization (positive priming effect), while the GS addition led to protection of the native SOM against biologic degradation (negative priming effect). Physical weathering led to reduction in these priming effects. Model extrapolations based on our data showed that decadal C sequestration potential of GS and HTC is globally equivalent when all losses including those due to priming and physical weathering were taken into account. However, at century scale only GS may have the potential to increase soil C storage.</p>", "keywords": ["priming effect", "[SDE] Environmental Sciences", "2. Zero hunger", "[SDV]Life Sciences [q-bio]", "aging", "gasification", "HTC", "04 agricultural and veterinary sciences", "15. Life on land", "carbon sequestration", "01 natural sciences", "630", "hydrothermal carbonization", "[SDV] Life Sciences [q-bio]", "13. Climate action", "soil organic matter", "[SDE]Environmental Sciences", "weathering", "0401 agriculture", " forestry", " and fisheries", "chemical oxidation", "biochar", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1111/gcbb.12158"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/GCB%20Bioenergy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/gcbb.12158", "name": "item", "description": "10.1111/gcbb.12158", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcbb.12158"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-02-05T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=hydrothermal+carbonization&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=hydrothermal+carbonization&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=hydrothermal+carbonization&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=hydrothermal+carbonization&offset=3", "hreflang": "en-US"}], "numberMatched": 3, "numberReturned": 3, "distributedFeatures": [], "timeStamp": "2026-05-30T22:55:46.609734Z"}