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  • Title: Waste degradation and gas production with enzymatic enhancement in anaerobic and aerobic landfill bioreactors.
    Author: Hettiaratchi JP, Jayasinghe PA, Bartholameuz EM, Kumar S.
    Journal: Bioresour Technol; 2014 May; 159():433-6. PubMed ID: 24684817.
    Abstract:
    The presence of lignin is the limiting factor at later stages of biodegradation of municipal solid waste under aerobic or anaerobic conditions. Supplying enzymes into the system could facilitate lignin degradation, thereby aiding anaerobic and aerobic waste degradation processes. A comprehensive set of laboratory experiments were conducted under both anaerobic and aerobic conditions to evaluate the feasibility of using enzymes in accelerating lignin-rich waste degradation. After 30 days of anaerobic operation, MnP and LiP enzyme treated reactors produced 36 and 23 times higher cumulative methane (CH4), respectively, compared to that of the control reactor devoid of enzyme treatments. The carbon dioxide (CO2) yield of MnP enhanced aerobic reactor showed more than two-fold increase.
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