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rapid sand filter
GATE Civil Engineering · Environmental Engineering - Water Treatment - Filtration · 2018-2026
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All concepts →2026 Q21
A rapid sand filter bed of depth 0.8 m has 40% porosity during service cycle. It is recommended that during backwash operation, the expanded filter bed should have 70% porosity. Th...
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2018 Q33
A rapid sand filter comprising a number of filter beds is required to produce 99 MLD of potable water. Consider water loss during backwashing as 5%, rate of filtration as 6.0 m/h a...
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