Q. _________ is an aerobic process of mixing sewage sludge with agricultural by-product sources.

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Q. Which of the following processes is rarely used?

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Q. What is the thickened concentration of the primary sludge?

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Q. What is the thickened concentration of the trickling filter sludge?

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Q. What is the thickened concentration of the thickened sludge from the rotating biological contractor?

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Q. What is the thickened concentration of air activated sludge?

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Q. What is the thickened concentration of extended aeration sludge?

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Q. What is the thickened concentration of high purity oxygen activated sludge?

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Q. What is the thickened concentration of anaerobically digested primary sludge from primary digestor?

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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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