Pick up the incorrect statement from the following?
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A. The gases produced in sludge digestion process, contain 75% methane
B. The process of decomposing the organic matter under controlled anaerobic conditions, is called sludge digestion
D. Sludge digestion is carried out in sludge tank
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.