Imh off cone is used to measure, in sewage_________

Which one of the following comprehensive classifications is used for different types of solid wastes?

The factor responsible of the purification of river, is _________

Which one of the following statements explains the term pyrolysis?

In translation of sewage from smallar diameter sewage to larger diameter sewers, the continuity of sewers is maintained at the _____________

1000 kg of sewage is estimated to contain, approximately total solids equal to

The gas coming out from a sludge digestion tank is ________

The pH of fresh sewage is usually

Acidicity of sewage is indicated by a pH value of

The biochemical treatment of sewage effluent is a process of________

The gas coming out from a sludge digestion tank is ________

A city supply of 15000 cubic meters of water per day is treated with a chlorine dosage of 0.5 ppm. For this purpose, the requirement of 25% bleaching powder per day would be_________

The unit working in anaerobic conditions is

In sludge digestion, gas produced mainly is

Pathogenic bacteria, enter waste waters, primarily from _________