Q. _________ at the top prevent an outflow of the sludge blanket.

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Q. What is the size of the microbial granules?

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Q. What is the product gases released at the end of the UASB process?

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Q. What is the means used for the mixing of the sludge?

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Q. _______ deflects the materials downwards.

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Q. A clarified effluent is extracted from the ______ of the reactor.

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Q. What is the minimum pH to be maintained for the process?

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Q. What is the temperature which should not be exceeded for the reaction?

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Q. What is the minimum influent COD load beneficial for the process?

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Q. What is the minimum hydraulic retention time for UASB?

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Q. What is the COD loading rate assumed for an Up flow anaerobic sludge blanket (UASB)?

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Q. What is the upflow velocity considered for a UASB while treating 100% soluble COD?

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Q. What is the upflow velocity considered for a UASB while treating partially soluble COD?

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Q. What is the upflow velocity considered for a UASB while treating domestic waste water?

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Q. What is the retention time considered for a UASB while designing at 16-19 degree Celsius?

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Q. What is the retention time considered for a UASB while designing at 22-26 degree Celsius?

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Q. What is the retention time considered for a UASB while designing at > 26 degree Celsius?

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Q. Calculate the volume for the UASB with the following details.

Flow: 120 m³/h
COD: 350 mg/L
UASB load considered: 6 Kg COD/ m³

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Q. Calculate the volume for the UASB with the following details.

Flow: 240 m³/h
COD: 350 mg/L
UASB load considered: 8 Kg COD/ m³

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Q. Cations with ______ increase corrosivity.

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