Question

what is its sewage composition ?​

Answer 1

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• Chemically, the sewage consists of approximately 99% water and 1% inorganic and organic matter in suspended and soluble forms. ... However, on an average, the sewage of towns in our country contains about 350 ppm biodegradable organic matter, 52 ppm N2, 45 ppm potassium and 16 ppm phosphorus.