Microbial dynamics and enzyme activities during rapid composting of municipal solid waste – A compost maturity analysis perspective

Microbial dynamics and enzyme activities during rapid composting of municipal solid waste – A... An investigation was carried out in the laboratory to find out the microbial dynamics and enzyme activities during rapid composting of municipal solid waste (MSW). Various treatments such as aeration (A), addition of chemical agents (glucose (G) and acetic acid (AA) and application of cellulolytic microbial (M) inoculum ( Phanerochaete chrysosporium and Trichoderma reesei ) were used to facilitate the decomposition of MSW. The result of the present investigation revealed that the degradation of organic substrates were quick (within 9–12 days) in case of rapid composting as indicated by the reduction (below 20) in C/N ratio. Whereas, normal composting took more than 20 days to attain C/N ratio of below 20. Estimation of selected enzymes (amylase, protease, phosphatase and cellulase) provided information on the substrate specific degradation profiles of various labile substrates contained in organic waste. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bioresource Technology Elsevier

Microbial dynamics and enzyme activities during rapid composting of municipal solid waste – A compost maturity analysis perspective

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Publisher
Elsevier
Copyright
Copyright © 2007 Elsevier Ltd
ISSN
0960-8524
D.O.I.
10.1016/j.biortech.2007.11.030
Publisher site
See Article on Publisher Site

Abstract

An investigation was carried out in the laboratory to find out the microbial dynamics and enzyme activities during rapid composting of municipal solid waste (MSW). Various treatments such as aeration (A), addition of chemical agents (glucose (G) and acetic acid (AA) and application of cellulolytic microbial (M) inoculum ( Phanerochaete chrysosporium and Trichoderma reesei ) were used to facilitate the decomposition of MSW. The result of the present investigation revealed that the degradation of organic substrates were quick (within 9–12 days) in case of rapid composting as indicated by the reduction (below 20) in C/N ratio. Whereas, normal composting took more than 20 days to attain C/N ratio of below 20. Estimation of selected enzymes (amylase, protease, phosphatase and cellulase) provided information on the substrate specific degradation profiles of various labile substrates contained in organic waste.

Journal

Bioresource TechnologyElsevier

Published: Sep 1, 2008

References

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