Abstract
The biodegradation of municipal solid waste (MSW) was investigated in simulated bioreactor landfills under aerobic conditions. The bioreactors were operated to determine the amount of leachate recirculation and municipal wastewater sludge addition required to optimize waste degradation. The leachate generated was recycled over 47 weeks, leachate samples were collected on a weekly basis and analyzed for pH, biochemical oxygen demand (BOD), chemical oxygen demand (COD), Total Kjeldahl Nitrogen (TKN), and ammonia nitrogen (NH3-N). The temperature of the MSW in the bioreactors was measured on a daily basis. Leachate and sludge were added at the rates of 5 l wk−1 to 15 l wk−1 and 0.5 l wk−1 to 1.5 l wk−1, respectively. Within 27 weeks enhanced MSW degradation was observed at a leachate recirculation rate of 15 l wk−1 (855 mg l−1 of MSW d−1) and sludge addition rate of 1.5 l wk−1 (85 mg l−1 of MSW d−1). During this period, the COD concentration in the leachate dropped significantly. A reduction in the leachate recirculation and sludge addition rate increased the waste stabilization period up to 45 weeks.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
