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Question
What is sludge? Explain how it is treated.
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Solution
Sludge is a semi-solid waste, like faeces, that settle to the bottom during wastewater treatment.
Sludge is first removed using a scraper. It 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 first removed using a scraper. It 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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