Q. The physical and chemical methods of treating waste water are efficient yet costly.

View solution

Q. The secondary pollution problem is a major concern caused due physical and or chemical purification techniques.

View solution

Q. Which of the following technique is environment friendly and cost effective?

View solution

Q. Biological technique uses catabolic reactions of microorganisms.

View solution

Q. The decomposition of the organic compounds leads conversion of released minerals into usable biomass.

View solution

Q. Which of the following is the main source of eutrophication?

View solution

Q. Which of the following methods can be used to separate phosphates from insoluble precipitates?

View solution

Q. Which of the following organisms represent the natural living style as biofilms?

View solution

Q. The biofilms can be engineered for bio degradation and bio transformation.

View solution

Q. Which of the following compound is broken down by the microbial biofilms in the waste water?

View solution

Q. Pathogens can be removed by action of microbial biofilms.

View solution

Q. __________ method is used for water disinfection.

View solution

Q. Which of following physical methods cannot be used for treatment of waste water?

View solution

Q. Which of the following process involves addition of chemical followed by rapid mixing?

View solution

Q. Efficient wastewater treatment is done by segregating various waste streams and treating them separately.

View solution

Q. Reverse osmosis is used in the treatment of waste water to remove the suspended solids from the water.

View solution

Q. Secondary treatment systems can be used for biological degradation of ____________ in municipal waste waters.

View solution

Q. Which of the following is another name given to conventional bio filters?

View solution

Q. In the exposed lands, ______ are used to assist rotation during harsh weather conditions?

View solution

Q. Bio filters are fed with effluent only after ____________

View solution