Characterization of organic matter microstructure dynamics during co-composting of sewage sludge, barks and green waste

Autor: Geneviève Villemin, Françoise Watteau
Přispěvatelé: Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL)
Jazyk: angličtina
Rok vydání: 2011
Předmět:
[SDV.BIO]Life Sciences [q-bio]/Biotechnology
microscopie à transmission
sludge compost
010501 environmental sciences
01 natural sciences
Lignin
boue résiduaire
Soil
microbial stability
Waste Management and Disposal
organic matter
chemistry.chemical_classification
Waste management
Sewage
sewage sludge
chloroplaste
Chemistry
Compost
microscopie électronique
04 agricultural and veterinary sciences
General Medicine
biodégradation
Microstructure
Characterization (materials science)
Refuse Disposal
Composition (visual arts)
déchet vert
Environmental Engineering
microstructure
plant bark
composé phénolique
Bioengineering
compost maturity
engineering.material
Microscopy
Electron
Transmission
chloroplast
tissu ligneux
Organic matter
compostage
Humic Substances
0105 earth and related environmental sciences
phenolic compound
electron microscopy
Renewable Energy
Sustainability and the Environment
Biodegradation
Carbon
Green waste
matière organique
040103 agronomy & agriculture
engineering
composting
0401 agriculture
forestry
and fisheries
organic matter microstructures
Sludge
écorce
Zdroj: Bioresource Technology
Bioresource Technology, Elsevier, 2011, 102 (19), pp.9313-9317. ⟨10.1016/j.biortech.2011.07.022⟩
ISSN: 0960-8524
DOI: 10.1016/j.biortech.2011.07.022⟩
Popis: A microstructure characterization study using transmission electron microscopy (TEM) was conducted to specify organic matter dynamics during the co-composting process of sewage sludge, green waste and barks. TEM results showed that ligneous and polyphenolic compounds brought by barks were not biodegraded during composting. Green waste brought more or less biodegraded ligneous constituents and also an active microbial potential. Chloroplasts and sludge flocs appeared to be relevant indicators of green waste and sewage sludge in composted products, as they were still viewable at the end of the process. TEM characterization of the final product highlighted two main fractions of organic matter, one easily available and a more recalcitrant one, and also a remaining microbial activity. Thus microstructure characterization appeared to be an appropriate way of taking the heterogeneity of the organic constituents' size and composition into account when attempting to specify such compost quality parameters as maturity and stability. (C) 2011 Elsevier Ltd. All rights reserved.
Databáze: OpenAIRE
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