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Municipal solid waste decomposition under oversaturated condition in comparison with leachate recirculation

Paper ID Volume ID Publish Year Pages File Format Full-Text
35923 45114 2008 5 PDF Available
Title
Municipal solid waste decomposition under oversaturated condition in comparison with leachate recirculation
Abstract

Municipal solid waste (MSW) decomposition under oversaturated condition in comparison with leachate recirculation was investigated in two simulated reactors (A and B). Reactor B was operated with leachate recirculation while in reactor A, an oversaturated condition was maintained without leachate recirculation. Results showed that MSW decomposition in reactor A was much faster than that in reactor B. The final CODcr concentration and pH value of leachates in reactor A were around 1000 mg L−1 and 7.0, respectively, in comparison to 18,000 mg L−1 and below 6.5 in reactor B after 420 days of incubation. Biogas production was positively related to ambient temperature. The total biogas and methane yields were 2800 L and 1330 L in reactor A while only 1470 L and 600 L in reactor B. These results indicated that the relative retardation of MSW degradation in reactor B was primarily resulted from the increased resistance of mass transfer and the accumulation of biogas caused by leachate recirculation and the resultant acid inhibition. Bioreactor landfill operated under liquid oversaturated and MSW loose condition could be a promising approach for accelerating municipal solid waste degradation.

Keywords
Municipal solid waste; Decomposition; Leachate recirculation; Oversaturated condition; Biogas; Landfill
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Municipal solid waste decomposition under oversaturated condition in comparison with leachate recirculation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 43, Issue 1, January 2008, Pages 108–112
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us