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Leachate from market refuse and biomethanation study
1Civil Engineering Department, Jadavpur University, Kolkata, India.
Environmental Monitoring and Assessment
|May 17, 2007
Summary
Campus market waste can be converted into biogas energy. This study shows effective waste management and biogas production from leachate, offering a sustainable energy solution for the Indian Institute of Technology campus.
Area of Science:
- Environmental Science
- Waste Management
- Renewable Energy
Background:
- Campus marketplaces are vital community hubs but suffer from poor waste management.
- Despite waste challenges, market waste presents an opportunity for non-conventional energy generation.
Purpose of the Study:
- To assess market waste management quality at the Indian Institute of Technology campus.
- To evaluate the feasibility of producing biogas from market waste leachate.
Main Methods:
- Collected and analyzed solid waste from the campus market.
- Generated and characterized leachate under various conditions.
- Treated leachate using a laboratory-scale up-flow anaerobic filter with burnt clay rings.
- Compared Indian leachate self-purification with US findings.
Main Results:
- Market waste is primarily degradable and 85% vegetable in origin.
- Optimal Chemical Oxygen Demand (COD) for treatment is 4,000-6,000 mg/l due to inhibitory compounds.
- Maximum biogas production occurred at 38°C with 70-75% methane.
- 83% COD removal was achieved with an input COD of 5,475 mg/l at a 2-day hydraulic retention time.
Conclusions:
- Campus market waste is a viable source for biogas production.
- Effective leachate treatment is achievable, yielding significant COD removal and biogas.
- This research supports sustainable waste management and energy recovery in academic environments.
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