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Comparative assessment of anaerobic digestion of municipal solid waste at mesophilic and thermophilic temperatures

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  • Dinesh Surroop
  • Romeela Mohee

Abstract

Anaerobic digestion is an environmentally sound treatment option for the organic fraction of municipal solid waste (OFMSW) and simultaneously producing methane gas which is a source of renewable energy. The COD reduction of the substrate was 72% for the mesophilic condition and 72.3% for the thermophilic condition. 1200 cm³ of methane was produced in the mesophilic condition and 1260 cm³ in the thermophilic condition. The methane content, by volume, in the biogas was found to be 60% and 63% in the mesophilic and thermophilic condition respectively. It was also found that 0.723 cm³ of methane per unit weight of substrate was produced at the mesophilic condition and 0.760 cm³ of methane per unit weight of substrate at the thermophilic condition. The gas production rate for mesophilic and thermophilic condition were 0.0214 m³ (m³d)−1 and 0.046 m³ (m³d)−1 respectively and the methane yield was more or less the same in both cases. The methane yield in mesophilic condition was 0.0614 m³/kg COD and that at thermophilic condition was 0.0612 m³/kg COD.

Suggested Citation

  • Dinesh Surroop & Romeela Mohee, 2011. "Comparative assessment of anaerobic digestion of municipal solid waste at mesophilic and thermophilic temperatures," International Journal of Environmental Technology and Management, Inderscience Enterprises Ltd, vol. 14(1/2/3/4), pages 238-251.
    • Handle: RePEc:ids:ijetma:v:14:y:2011:i:1/2/3/4:p:238-251
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    Cited by:

    1. Meihui Li & Na Luo & Yi Lu, 2017. "Biomass Energy Technological Paradigm (BETP): Trends in This Sector," Sustainability, MDPI, vol. 9(4), pages 1-28, April.

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