Page No. 179
In chlorination, with the rise in temperature of water, death rate of bacteria____________?
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The suitable method for disinfection of swimming pool water is________________?
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The percentage of chlorine in fresh bleaching powder is about________________?
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Chlorine demand of water is equal to________________?
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The rate of Alteration of pressure filters is_________________?
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The effective size of sand particles used in slow sand filters is_______________?
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In water treatment, rapid gravity filters are adopted to remove_______________?
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The alum, when added as a coagulant in water_______________?
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