Q. 'fixed' solids represents

View solution

Q. What compounds form fats and oils ?

View solution

Q. 'Polychlorinated biphenyls' are by products of plastics, lubricants, rubber and

View solution

Q. Microbiological pollutants, cause sickness in humans, known as

View solution

Q. What causes bad odour in waste treatment plant?

View solution

Q. Which organism respire in absence of oxygen ?

View solution

Q. Pesticide pollution is due to 'leachate' from agricultural and

View solution

Q. Human faeces is main source of organism, in

View solution

Q. What does an inorganic compounds contain ?

View solution

Q. Secondary treatment reduces bacterial load, ranges from

View solution

Q. Composition of sewage water depends on its

View solution

Q. Finely divided solid, remaining either with in solution or in suspension is known as

View solution

Q. Which is chief source of nitrogenous matter urea ?

View solution

Q. Phosphorous, is needed for the

View solution

Q. Primary treatment reduces bacterial load, ranges from

View solution

Q. Cyanides are toxic to all biological life, prevents enzyme action, as well as immobilize the

View solution

Q. What reduces water quality ?

View solution

Q. Low 'pH' of a sewage indicates its

View solution

Q. Soil, sand and other solids are washed into water bodies due to

View solution

Q. Which bacteria flourish in absence of free dissolved oxygen in sewage?

View solution