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How is sludge treated after it …

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How is sludge treated after it is obtained from the sewage
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Meghna Thapar 5 years, 9 months ago

The organic solid matter collected at the bottom of the sedimentation tank is called sludge which is continuously removed by scrapers. The sludge collected is sent to separate tanks called digesters where it is broken down by anaerobic bacteria and biogas is released.

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