Q Name the types of impurities present in waste water with the help of example.

Impurities in waste water and their examples

Organic components

Human faeces, animal wastes, oil, urea (urine) pesticides, herbicides, fruits, and vegetable wastes etc.

Inorganic components

Nitrates, phosphates metals

Nutrients

Phosphorus and nitrogen

Bacteria

The germs which cause cholera and typhoid

Microbes

The germs which cause dysentery