Q. ___________ helps to mix the incoming influent and the returned activated sludge.

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Q. How is mixing done in SBR?

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Q. In which stage of the SBR is aeration performed?

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Q. In which stage are the aeration and mixing avoided?

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Q. The multiplication of _________ is encouraged by the addition of oxygen.

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Q. ______ is used to remove phosphorus compounds from the liquor.

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Q. The _________ is usually the same length in time as the aeration.

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Q. Which part of the tank is suitable for anaerobic bacteria to flourish?

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Q. ______ is removed by Anammox.

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Q. How many types of BOD are present?

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Q. BOD is a physical procedure for determining DO needed for aerobic biological organisms.

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Q. MBBR provides support for both autotrophic and heterotrophic bacteria.

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Q. MBBR needs an assistance to maintain biofilm.

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Q. Which of the following is not correct with respect to MBBR?

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Q. Which ions are present on the charged surface of MBBR?

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Q. The ions are desorbed after ______ by the biofilm.

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Q. MBBR was developed based on the activated sludge process and _____

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Q. What part of the tank is used by MBBR for biomass growth?

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Q. The biofilm carrier movement is caused by ________

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Q. What is the shape of the biofilm carrier?

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