Q. What is the specific flux of the system if it contains 75 sq. ft. of filter area and operates for 24 hours at a flow rate of 5 gpm? Assume that the water temperature is 20℃ and the TMP of the system is 20 psi.

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Q. Which of the following qualities do not determine the percent recovery in membrane treatment?

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Q. Which of the following mechanisms is used by a membrane filter to remove particulate material from the water?

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Q. The membrane filtration level with the smallest pore size (0.0001 – 0.001 µm) is called_____________

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Q. The flow rate through the membrane filter itself expressed as a gallon per square foot per day is called?

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Q. Which one of the following is the name of the process of reversing the direction of water flow through the filter using filtered water?

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Q. The filtered water that has been treated by a membrane filter is called _____________

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Q. Which of the following remains the primary use of membrane filtration in water treatment?

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Q. Which of the following are different forms of membrane filter construction?
I) Hollow filter

II) TMP

III) Spiral wound

IV) Ceramic

V) Cross flow

VI) Electro dialysis

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Q. A raw water reservoir would be an example of which membrane pretreatment method (where the goal is to reduce the loading and fouling potential of the water fed to the membrane)?

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Q. Which of the following is a valid name for a test for testing membrane integrity?

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Q. Chlorines, acids, and bases are three types of chemicals used to do which of the following?

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Q. Which of the following mechanisms is not used by a membrane filter to remove particulate material from the water?

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Q. For surface water system, the required residual disinfectant concentration may not be less than _______ mg/L for more than ___________ hours before the first customer.

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Q. Pore size Micro-filtration membrane ranges from _________

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Q. Pore size Ultra-filtration membrane ranges from ________

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Q. Pore size Nano-filtration membrane ranges from __________

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Q. Pore size RO membrane ranges from _____________

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Q. The solution to be concentrated or fractionated is called?

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Q. The term for deposition of solids on the membrane, irreversible during processing is?

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