Q. Screening and comminution are preliminary treatment processes.

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Q. _____ devices remove materials which would damage equipment or interfere with a process.

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Q. __________ represents the heavier inert matter in wastewater.

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Q. Supplemental means of aeration are often employed with an equalization basin to provide better mixing.

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Q. Which of the following should be provided in the case where aeration is absent?

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Q. Which process is employed to gain sufficient head for the wastewater?

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Q. What is the most common used coagulant?

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Q. What is the intermediate zone composed of in aerobic-anaerobic ponds?

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Q. Nitrification efficiency is significantly suppressed as the temperature is _________

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Q. __________ is a process which involves further removal of the nitrogen.

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Q. In rotating biological contractors, what percent of corrugated plastic discs are submerged?

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Q. What is the method of treatment used when the TSS in the sample is high?

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Q. Which type of treatment does clarification fall in?

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Q. Which of these remove coarse materials?

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Q. Which type of treatment is the coarse screen?

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Q. Tube settlers are classified as which type of treatment?

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Q. Activated Carbon is classified as which type of treatment?

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Q. Which of these is used to remove odour?

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Q. Reverse Osmosis is which type of treatment?

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Q. Which is usually prior to reverse osmosis?

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