Question

Explain the involved in wastewater treatment plant with the help of a flow chart

Answer 1

Answer:

After the wastewater passes through the grit and sand removal tank, it is allowed to settle down in a large tank, with a slope toward the middle. Solid materials like faeces settle at the bottom and are removed with the help of a scraper. The deposited waste material thus collected is called sludge.

Explanation:

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Answer 2

Explanation:

Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment. Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface.