Evaluation of carbon degradation during co-composting of exhausted grape marc with different biowastes

Chemosphere
Francisco J FernándezL Rodríguez

Abstract

In this work the carbon biodegradation of exhausted grape marc (EGM) combined with other organic wastes using the turned pile composting system was studied. Four different piles were made of EGM in Pile 1, EGM mixed with cow manure and straw (CMS) in Pile 2, EGM mixed with municipal solid waste (MSW) in Pile 3 and EGM mixed with grape stalks (GS) in Pile 4. The results obtained were modelled to determine the main kinetic and stoichiometric parameters. Regarding to the rate constants of the composting processes they were increased from 0.033d(-1), the value obtained when EGM was composted alone, to 0.040 and 0.044d(-1) when MSW and GS were added, respectively as co-substrates. However, the addition of CMS reduced the rate constant. About the biodegradable carbon fractions, it was observed that the co-composting reduced significantly the remanent carbon concentration after composting in all the piles whilst increased the readily biodegradable carbon fractions from 35, the value obtained when EGM was composted alone, to 50 and 60%, respectively when MSW or GS were added. As regards the temperature profiles, only Piles 1 and 4 achieved thermal hygienization values and about the nitrogen losses, the lowest percentage of nitrogen los...Continue Reading

References

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Citations

Nov 7, 2014·Critical Reviews in Biotechnology·Alberto ScomaFabio Fava
Jan 1, 2013·Journal of Environmental Management·Remigio ParadeloMaría Teresa Barral
Aug 9, 2011·Chemosphere·Belén PuyueloAntoni Sánchez
Feb 1, 2011·Journal of Hazardous Materials·María Gómez-BrandónJorge Domínguez
Nov 26, 2009·Waste Management·Eva SzabováIngrid Papajová
Dec 3, 2013·Waste Management·Nina KopčićFelicita Briški
Feb 14, 2017·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Gui-Hong ZhaoYu-Jie Feng
Oct 26, 2018·ChemSusChem·Sara MateoManuel A Rodrigo
Dec 19, 2017·The Science of the Total Environment·Patricia GullónSara Gonzalez-Garcia
Feb 6, 2010·Journal of Agricultural and Food Chemistry·Remigio ParadeloMaría T Barral

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