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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Q. Effective preliminary treatment can also be used to remove the ____

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Q. Which of the following factors doesn’t influence biological treatment efficiency?

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Q. Which of the following has the potential to ‘rough’ high strength industrial effluents prior to sewage discharge?

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Q. Rotating biological contractors is used for carbonaceous oxidation as a ________

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Q. Organic overloading is a major problem associated with Rotating biological contractors.

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Q. Absorbing oxygen from the air and pollutants from the wastewater can be decomposed aerobic microorganisms by which of the following methods?

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