Question

what is the composition of sewage?

Answer 1

it consist of 99% water and 1% inorganic compound and organic matter in suspended and soluble forms ..

Answer 2

Chemically, the sewage consists of approximately 99% water and 1% inorganic and organic matter in suspended and soluble forms. Lignocellulose, cellulose, proteins, fats, and various inorganic particulate matter exist in suspended state, whereas sugars, fatty acids, alcohols, amino acids, and inorganic ions constitute the soluble forms.