GATE ES · 2026 · ES
Question 61: Municipal solid waste management
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Question 61
ESNAT2 marksNeeds review
An anaerobic digestion system is operated for methane gas generation from organic fraction of municipal solid waste (OFMSW). The moisture content and volatile solids (VS) content of OFMSW are 20% and 90%, respectively. The biodegradable volatile solids (BVS) in the VS is 70%, and the BVS conversion efficiency to methane gas is 85%.
If the methane gas generation in the system is 12 m
per kg of BVS converted, the total volume of gas produced from one kilogram of OFMSW is _____ m
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2026ES
GATE ES 2026 · Paper 1
Environmental Science and Engineering · Original paper archive
- Section
- Environmental Science and Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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