chemicals may be harmful to living organisms of sewage time of treatment is further prolonged chemicals cost more sludge cannot be disposed off easily
Answer Discuss in Comment
stabilization of sludge removal of waste products from sludge dilution of sludge disposal of sludge
public places high schools residental houses people of same height
people of different heights people of the same height public places commercial areas
baths toilets urinals sinks and wash basins
velocity of flow increases wetted perimeter increases discharge increases velocity of flow decreases
outfall sewer lateral main sewer branch sewer
lateral trunk sewer outfall sewer branch sewer
combined system with less fluctuations separate system outfall sewer combined system with very wide fluctuations
to find out presence of oxygen to give a signal to the adjacent manhole to detect toxic gases to illuminate it
"Scientists dream about doing great things. Engineers do them."
