In water treatment, rapid gravity filters are adopted to remove
A. Dissolved organic substances
B. Dissolved solids and dissolved gases
C. Floating solids and dissolved inorganic solids
D. Bacteria and colloidal solids
Answer: Option D
This Question Belongs to Civil Engineering >> Environmental Engineering
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Sewage treatment units are designed for
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B. Minimum flow only
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A. 4.5 to 6.0
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C. 8.5 to 10.0
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