Waste Water Engineering For design purposes, the normal rate of infiltration of ground water into the sewer, is 1000 litres/km/cm 500 litres/km/cm 2000 litres/km/cm 1500 litres/km/cm 1000 litres/km/cm 500 litres/km/cm 2000 litres/km/cm 1500 litres/km/cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for Unexpected increase in the population All of these Under estimates of maximum and average flows Unexpected large scale infiltration of stream water Unexpected increase in the population All of these Under estimates of maximum and average flows Unexpected large scale infiltration of stream water ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering During preliminary treatment of a sewage Girt and sand are removed by girt chambers All listed here Oil and grease are removed from skimming tanks Floating materials are removed by screening Girt and sand are removed by girt chambers All listed here Oil and grease are removed from skimming tanks Floating materials are removed by screening ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Acid regression stage of sludge digestion at a temperature 21°C extends over a period of 90 days 60 days 15 days 30 days 90 days 60 days 15 days 30 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is 0.05556 cumec 0.0556 cumec 0.05552 cumec 0.05554 cumec 0.05556 cumec 0.0556 cumec 0.05552 cumec 0.05554 cumec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In very first stage of decomposition of the organic matter in sewage Carbondioxide is formed Nitrates are formed Ammonia is formed Nitrites are formed Carbondioxide is formed Nitrates are formed Ammonia is formed Nitrites are formed ANSWER DOWNLOAD EXAMIANS APP
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