2
Question
What is sludge? Explain how it is treated. [3 MARKS]
What is sludge? Explain how it is treated. [3 MARKS]
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Solution
Definition: 1 Mark
Explanation: 2 Marks
Sludge refers to the residual, semi-solid material that is produced as a by-product during sewage treatment of industrial or municipal wastewater
The sludge is removed using a scraper and then transferred to a tank where anaerobic bacteria initiates the process of disintegration. All pathogens get eliminated through this process The byproduct of this decomposition is bio-gas which is a low cost fuel.
Definition: 1 Mark
Explanation: 2 Marks
Sludge refers to the residual, semi-solid material that is produced as a by-product during sewage treatment of industrial or municipal wastewater
The sludge is removed using a scraper and then transferred to a tank where anaerobic bacteria initiates the process of disintegration. All pathogens get eliminated through this process The byproduct of this decomposition is bio-gas which is a low cost fuel.
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