Journal
BIORESOURCE TECHNOLOGY
Volume 99, Issue 14, Pages 6512-6519Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2007.11.030
Keywords
facilitated aeration; enzyme activities; municipal solid waste; microbial biomass; compost
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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 912 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. (c) 2007 Elsevier Ltd. All rights reserved.
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