Question

What is sludge?Explain how it is treated:​

Answer 1

Answer:

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Sewage treatment plants, the residue that accumulates is called sludge. It is treated by anaerobic bacteria.

Sewage sludge treatment describes the processes used to manage and dispose of sewage sludge produced during sewage treatment. Sludge is mostly water with lesser amounts of solid material removed from liquid sewage.Reducing sludge volume may increase the concentration of some of these toxic chemicals in the sludge.

Answer 2

Answer:

Semi-solids such as faeces that settle down during wastewater treatment are called sludge. This sludge is removed using a scraper and then transferred to a tank where it is decomposed by anaerobic bacteria to produce biogas.

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