Q. Which of these process are involved in the removal of oil and grease?

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Q. For a discrete particle settling which of these mathematical equations is true?

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Q. How is the design velocity expressed mathematically for a discrete particle settling process?

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Q. _______ is a process by which particles settle to the bottom of the liquid.

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Q. Settling tanks are also called as sedimentation tanks.

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Q. Which is the primary force acting on the Settleable particles?

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Q. How many types of settling are present?

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Q. Type III settling is called as hindered settling.

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Q. What is type IV settling also called as?

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Q. What is the product obtained when a coagulant is mixed with wastewater?

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Q. Which mode of settling are tube settlers based on?

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Q. In countercurrent settling how is the solid suspension fed?

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Q. How is the length of the surface calculated in case of countercurrent settling?

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Q. When will the particles settle in a tank which is subjected to countercurrent settling?

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Q. Lamella Clarifier works on which principle?

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Q. How is the length of the surface of a settling tank determined in case of cross- flow settling?

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Q. How is the area of a sludge thickening tank calculated?

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Q. How is the critical concentration of sludge thickener tank calculated?

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Q. What is the major assumption made when solid flux method is used to find the area of the sedimentation basin?

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Q. How is the height of the sludge calculated in a sludge drying bed?

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