6. Filtration through sand-bed removes all suspended impurities but not all the
germs. Why?
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Uses in water treatment
Slow sand filters produce high-quality water without the use of chemical aids. Passing flocculated water through a rapid gravity sand filter strains out the floc and the particles trapped within it, reducing numbers of bacteria and removing most of the solids.
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Answered by
1
Answer:
Uses in water treatment
Slow sand filters produce high-quality water without the use of chemical aids. Passing flocculated water through a rapid gravity sand filter strains out the floc and the particles trapped within it, reducing numbers of bacteria and removing most of the solids.
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