4 Sewage is a complex mixture containing the following. give two examples of each. (a) Inorganic impurities (b) Organic impurities (c) Nutrients (d) Bacterial diseases
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Sewage is a liquid waste. Most of its water, which has dissolved and suspended impurities. We know that sewage is a complex mixture containing suspended solids, organic and inorganic impurities, nutrients, saprotrophic and disease-causing bacteria, and other microbes.
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