Q. What is the thickened concentration of primary sludge combined with trickling filter humus?

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Q. What is the thickened concentration of primary sludge combined with rotating biological contractor?

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Q. What is the thickened concentration of chemical tertiary sludge( High lime)?

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Q. What is the solid loading rate in kg/ m².d considered while designing a thickener to treat the primary sludge?

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Q. What is the solid loading rate in kg/ m².d considered while designing a thickener to treat the trickling filter humus?

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Q. What is the solid load rating in kg/ m².d considered while designing a thickener to treat the sludge from the rotating biological contractor?

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Q. What is the solid loading rate in kg/ m².d considered while designing a thickener to treat the sludge from air- activated sludge process?

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Q. Anaerobic digestion occurs in the presence of oxygen.

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Q. Anaerobic digestion can be used to produce fuel.

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Q. _________ uses anaerobic digestion.

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Q. What is biogas composed of?

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Q. What is the percentage of methane in the biogas?

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Q. How many steps are present in anaerobic digestion?

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Q. What is the temperature that needs to be maintained during the process?

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Q. The pathogens in digestate are _________

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Q. What is the range of retention time during anaerobic digestion?

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Q. How much is the cow yield from anaerobic digestion that can be obtained?

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Q. In anaerobic digestion system which of the following statement holds good?

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Q. What is the optimum temperature at which anaerobic digestion is carried out?

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Q. For what range of COD level anaerobic digestion is carried out?

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