Influence of free air space on microbial kinetics in passively aerated compost

Bioresource Technology
Shouhai YuJerry J Leonard

Abstract

The influence of free air space (FAS) on passively aerated composting has been reported, but the quantitative relationship between FAS and the microbial kinetics in passively aerated compost has not been investigated. This relationship was studied by composting dairy manure and straw in an enclosed, passively aerated, cylindrical vessel. Based on this experimental system, conceptual and numerical models were developed in which the compost bed was considered to consist of layered elements, each being physically and chemically homogeneous. The microbial activity in each layer was represented in order to predict oxygen and substrate consumption and the release of water and heat. Convective transport of air, moisture, and heat through the layers was represented. Microbial growth and substrate consumption rates were described using modified first-order kinetics for each of the mesophilic and thermophilic temperature regimes. The values of the microbial kinetic parameters were adjusted for each layer based on an innovative, non-linear, statistical analysis of temperature histories recorded at different layers in the compost bed during three treatments (i.e., FAS values of 0.45, 0.52, and 0.65). Microbial kinetic rate constants were f...Continue Reading

References

Mar 21, 2002·Water Research·Federico AulentaAndrea Tilche
Oct 2, 2004·Biotechnology Progress·Tom L RichardH V M Bert Hamelers
Jun 2, 2005·Waste Management·I G Mason
Nov 17, 2005·Waste Management·Dimitris P Komilis
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Feb 25, 2006·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Raquel Barrena GómezAntoni Sánchez Ferrer
Nov 13, 2007·Bioresource Technology·Shouhai YuJerry J Leonard

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Citations

Sep 4, 2012·Journal of Environmental Management·Luis RodríguezJosé Villaseñor
May 25, 2010·Waste Management·Marco BaptistaAna Silveira
Jul 26, 2015·Journal of Environmental Management·Ivan Petric, Nesib Mustafić
Mar 29, 2012·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Marco BaptistaFernando Antunes
Sep 22, 2010·Critical Reviews in Biotechnology·Sunil Kumar
Jun 25, 2020·Anais Da Academia Brasileira De Ciências·Catalina Trejos-DelgadoSantiago A Cardona-Gallo
Jul 12, 2017·Bioresource Technology·Alejandra CerdaAntoni Sánchez

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