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प्रश्न
The removal of accumulated matter from the waste water is known as ______.
विकल्प
purification
sedimentation
treatment
formulation
MCQ
रिक्त स्थान भरें
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उत्तर
The removal of accumulated matter from the waste water is known as sedimentation.
Explanation:
In the wastewater treatment process, sedimentation (or primary treatment) is the step where wastewater is held in large tanks so heavier, accumulated solids (like sludge, grit, and human waste) can settle to the bottom by gravity, allowing them to be scraped away and removed.
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