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Measuring Biomethane Potential of Food Scrap Waste Anaerobically Co-Digested with Waste-Activated Sludge Using Respirometry
Published on: April 26, 2024
Biochemical methane potential of vegetable wastes
E Selina Kavitha1, Kurian Joseph
1Centre for Environmental Studies, Anna University, Chennai.
Journal of Environmental Science & Engineering
|May 15, 2008
Summary
This study investigated anaerobic digestion of vegetable waste, achieving a biogas yield of 0.391 L/g VS. The generated biogas contained 67%-70% methane, indicating efficient energy recovery from organic waste.
Area of Science:
- Environmental Science
- Biotechnology
- Renewable Energy
Background:
- Organic waste management is a global challenge.
- Anaerobic digestion offers a sustainable solution for waste valorization.
- Vegetable waste represents a significant portion of organic refuse.
Purpose of the Study:
- To evaluate the biogas and methane production from anaerobic digestion of vegetable waste slurry.
- To determine the biochemical methane potential (BMP) of vegetable waste.
- To assess the feasibility of using laboratory-scale reactors for anaerobic digestion studies.
Main Methods:
- Laboratory-scale anaerobic digestion experiments were conducted.
- Bottle reactors with a 2.5L capacity were used.
- Digestion was carried out for 60 days at ambient temperature.
- Volatile Solids (VS) content was measured to determine biogas yield.
Main Results:
- A biogas yield of 0.391 L/g VS was achieved.
- The methane content in the biogas ranged from 67% to 70%.
- The biochemical methane potential was determined to be 0.269 L CH4/g VS.
Conclusions:
- Anaerobic digestion is an effective method for biogas production from vegetable waste.
- The high methane content suggests efficient conversion of organic matter.
- The results support the potential for scaling up this process for renewable energy generation.
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