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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Q. Sedimentation is a process using gravity to remove suspended solids from water.

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Q. What are the ponds constructed for removing entrained solids called?

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Q. The tanks built with mechanical means for continuous removal of solids being deposited by sedimentation are called _________

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Q. Sedimentation tank is also called as settling tank.

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Q. What is the accumulated layer at the bottom of the tank called as?

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Q. How many types of sedimentation tanks are there based on the method of operation?

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Q. How many types of sedimentation tanks are present based on the shape of the tank?

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Q. What is the time period for which the water is stored in fill and draw type of sedimentation tank?

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Q. How many hours does the removing of Settleable particles require in fill and draw type of sedimentation tanks?

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Q. In which of the following sedimentation tanks, the flow may be either horizontal or vertical?

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Q. What is the maximum permissible velocity in horizontal flow type sedimentation tank?

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Q. The vertical type of sedimentation tanks are usually in _________ shape.

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Q. Why are the baffle walls provided?

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Q. Sludge is disposed through _______

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Q. ________ is provided after activated sludge process.

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Q. In a primary sedimentation tank in percentage what is the amount of TSS removed?

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Q. In a primary sedimentation tank in percentage what is the amount of BOD removed?

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