An aerobic reactor receives waste water at a flow rate of 500 m /d having a COD of 2000 mg/l. The effluent COD is 400 mg/l. Assuming that waste water contains 80% biodegradable waste, the daily volume of methane produced by the reactor is

An aerobic reactor receives waste water at a flow rate of 500 m /d hav

1.	An aerobic reactor receives waste water at a flow rate of 500 m /d having a COD of 2000 mg/l. The effluent COD is 400 mg/l. Assuming that waste water contains 80% biodegradable waste, the daily volume of methane produced by the reactor is
A.	0.224 m
B.	0.280 m
C.	224 m
D.	280 m
Answer» C. 224 m

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An aerobic reactor receives waste water at a flow rate of 500 m /d having a COD of 2000 mg/l. The effluent COD is 400 mg/l. Assuming that waste water contains 80% biodegradable waste, the daily volume of methane produced by the reactor is

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