Q. __________ method can be used for enhancing the performance of waste stabilization ponds.

View solution

Q. Algal fish ponds require artificial aeration.

View solution

Q. Nitrogen and __________ are the main source for eutrophication of surface water?

View solution

Q. Ammonia is converted into nitrate which is converted into__________ and released into the atmosphere.

View solution

Q. Which of the following process is leads to removal of nitrogen gas from water?

View solution

Q. The total Nitrogen load = (soluble organic nitrogen and ammonia from incoming wastewater) + (nitrogen from Return Activated Sludge) + (nitrogen from recirculation).

View solution

Q. Particulate organic nitrogen is termed as the material that can pass through a 0.2-μm filter.

View solution

Q. Biological oxidation of ammonia is called as ____________

View solution

Q. Nitrification of ammonia involves two oxidation stages.

View solution

Q. Which of the following metal catalyst is not used during catalytic oxidation of ammonia?

View solution

Q. _____________ bacteria get the energy from oxidation of inorganic nitrogen compounds.

View solution

Q. Which of the following bacteria is involved in nitrification of ammonia?

View solution

Q. Bacteria eat a lot of ammonia produced in the fish gills.

View solution

Q. The optimum growth temperature of nitrifying bacteria is __________

View solution

Q. Nitrifying bacteria cannot survive at 0° C.

View solution

Q. Nitrogen is returned back into the atmosphere by the activity of _________

View solution

Q. Nitric acid is formed during oxidation of ammonia.

View solution

Q. Sewage treatment plant for the removal of phosphate in an activated sludge system is called as ________

View solution

Q. Enhanced biological phosphorus removal implementation is done in an anaerobic tank.

View solution

Q. The removal of phosphorous from wastewater involves the unification of __________ and then removal from the solids?

View solution