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What is sludge? Explain how it is treated.
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Solution
Sludge is a semi-solid wastes like faeces that settle to the bottom during wastewater treatment
It is treated by using a scraper.
The scraper is used to remove the sludge, which is then transferred to a separate tank where anaerobic bacteria degrade it to produce biogas.
This biogas can be utilised for cooking, heating, and other purposes.
Sludge is a semi-solid wastes like faeces that settle to the bottom during wastewater treatment
It is treated by using a scraper.
The scraper is used to remove the sludge, which is then transferred to a separate tank where anaerobic bacteria degrade it to produce biogas.
This biogas can be utilised for cooking, heating, and other purposes.
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