Waste Water Engineering The clarigesters are Circular Imhoff double storey tanks without bottom hoppers Circular Imhoff double tanks with bottom hoppers Circular septic tanks Rectangular septic tanks Circular Imhoff double storey tanks without bottom hoppers Circular Imhoff double tanks with bottom hoppers Circular septic tanks Rectangular septic tanks ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is 0.25 0.5 0.05 0.1 0.25 0.5 0.05 0.1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Chlorination of water is done for the removal of Suspended solids Hardness Sediments Bacterias Suspended solids Hardness Sediments Bacterias ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Primary treatment of sewage consists of removal of Large suspended organic solids Floating materials Oil and grease Sand and girt Large suspended organic solids Floating materials Oil and grease Sand and girt ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is [(100 + P2)/(100 – P1)] V1 [(100 + P1)/(100 – P2)] V1 [(100 – P1)/(100 + P2)] V1 [(100 – P1)/(100 – P2)] V1 [(100 + P2)/(100 – P1)] V1 [(100 + P1)/(100 – P2)] V1 [(100 – P1)/(100 + P2)] V1 [(100 – P1)/(100 – P2)] V1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A rainfall may be classified as acidic if its pH value is less or equal to 5 7 6.5 6 5 7 6.5 6 ANSWER DOWNLOAD EXAMIANS APP