A waste-water sample contains 30 mg/l toxic material, 300 mg/l biodegradable organic material and 100 mg/l of inorganic material. Its BOD will be
A. 0 mg/l
B. 300 mg/l
C. 400 mg/l
D. 430 mg/l
Answer:A
A waste-water sample contains 30 mg/l toxic material, 300 mg/l biodegradable organic material and 100 mg/l of inorganic material. Its BOD will be
A. 0 mg/l B. 300 mg/l C. 400 mg/l D. 430 mg/l