Environmental Engineering The rate of filtration in slow sand filters in million litres per day per hectare is about 100 to 150 1400 to 1500 500 to 600 50 to 60 100 to 150 1400 to 1500 500 to 600 50 to 60 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as 6.5 to 8.0 10.5 to 12.0 4.5 to 6.0 8.5 to 10.0 6.5 to 8.0 10.5 to 12.0 4.5 to 6.0 8.5 to 10.0 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of chlorine in fresh bleaching powder is about 10 to 15 20 to 25 30 to 35 40 to 50 10 to 15 20 to 25 30 to 35 40 to 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The devices which are installed for drawing water from the sources are called Intakes Aquifers Aquiclude Filters Intakes Aquifers Aquiclude Filters ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 50 to 150 150 to 350 350 to 500 0 to 50 50 to 150 150 to 350 350 to 500 0 to 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The main disadvantage of oxidation pond is that BOD removal is very low Large area is required for construction None of these Maintenance and operation cost are high BOD removal is very low Large area is required for construction None of these Maintenance and operation cost are high ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS