5. What is sludge? Explain how it is treated.
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Answer:semi solid such as faeces as that settle down during wastewater treatment is called sludge. This sludge is removed using scraper and than transfered to a tank where it is decomposed by anaerobic bacteria to produce biogas.
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Answer:
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.
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