Question

How waste water useful to man kind

Answer 1

Answer:

Wastewater treatment. The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged back to the environment. As solid material decays, it uses up oxygen, which is needed by the plants and animals living in the water.

Answer 2

Answer:

Wastewater and greywater use is increasingly considered a method combining water and nutrient recycling, increased household food security and improved nutrition for poor households. ... The beneficial use of wastewater also helps to decrease the impact on the environment of disposal of sewage or industrial effluent.

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