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

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

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Q. Biological technique uses catabolic reactions of microorganisms.

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

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

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

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

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

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

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

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Q. __________ method is used for water disinfection.

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

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

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

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

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

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

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

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Q. Bio filters are fed with effluent only after ____________

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Q. Compensation for lower temperatures can be achieved by reducing hydraulic and organic loading rates thereby increasing _____________

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