Q. How are suspended solids removed from the soil?

View solution

Q. Which type of treatment methods are used for municipal and industrial wastewaters?

View solution

Q. _________ is the controlled application of waste water onto the land surface to achieve a specified level of treatment.

View solution

Q. Waste water is injected into the ground between impermeable layers of rocks to avoid polluting fresh water supplies.

View solution

Q. _______ is an improved sinkhole or a subsurface fluid distribution system.

View solution

Q. What does LPED stand for?

View solution

Q. The wastewater disposed on land reaches groundwater and thereby contaminates surface water.

View solution

Q. The impact of pollution depends upon nature of the pollutants and the ___________

View solution

Q. What is the objective of water quality management?

View solution

Q. In a flowing stream, the breakdown of degradable wastes by bacteria ________ dissolved oxygen.

View solution

Q. Flowing water bodies recover rapidly.

View solution

Q. On which of the following does the self purification process does not depend?

View solution

Q. _________ is accomplished by the replenishment of oxygen lost to bacterial degradation of organic waste.

View solution

Q. In the concept of self purification of natural streams, complete the following phrase.
Solution to pollution is _________

View solution

Q. Oxygen demanding wastes improves DO.

View solution

Q. What is the minimum amount of DO required for the life survival of aquatic animals?

View solution

Q. Which one of the following is the basic indicator of river health?

View solution

Q. During which of the following conditions, the deoxygenation is equal to reoxygenation?

View solution

Q. When the deoxygenation rate exceeds the reoxygenation rate, the oxygen sag curve shows ________ in a deficit of oxygen.

View solution

Q. What is endogenous respiration?

View solution