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Effect of acidification percentage and volatile organic acids on the anaerobic biological process in simulated landfill bioreactors

Paper ID Volume ID Publish Year Pages File Format Full-Text
36434 45132 2006 5 PDF Available
Title
Effect of acidification percentage and volatile organic acids on the anaerobic biological process in simulated landfill bioreactors
Abstract

A landfill bioreactor with leachate circulation in situ and two-phase landfill bioreactor were introduced to investigate the effect of acidification percentage and volatile organic acids on the decomposition of municipal solid waste. The concentration of soluble chemical oxygen demand (SCOD), volatile organic acids (VOAs), acetic acid, propionic acid and butyric acid in leachate were regularly monitored, and the acidification percentages were also calculated. The changes of SCOD indicated that the anaerobic landfill bioreactor with leachate circulation in situ occurred two clear lag-phases, the first one about 60 days and the second from the 80th day, while the two-phase one had the significantly short first lag-phase, only about 7 days. It was also found that the concentration of VOAs and propionic acid could be used to indicate the first lag-phase and the second one, respectively. However, the percentage of acidification, which were similar for both lag-phase during the first 70 days, could only indicate the first lag-phase without showing the second lag-phase since the 80th day.

Keywords
Municipal solid waste; Landfill bioreactor; Anaerobic digestion; Acidification percentage; Volatile organic acids
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Effect of acidification percentage and volatile organic acids on the anaerobic biological process in simulated landfill bioreactors
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 7, July 2006, Pages 1677–1681
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