16. What is the primary treatment goal of the activated sludge process? A. Remov

Question

16. What is the primary treatment goal of the activated sludge process? A. Removal of nitrogen forms (ammonia or nitrate) B. Removal of organic compounds C. Removal or phosphorus D. Removal of pathogens 17. What are not biological factors that adversely affect settleability of activated sludge? A. Species of dominant microorganisms (filamentous) B. Denitrification in final clarifier (floating solids) C. Excessive volumetric and food/microorganisms loadings D. Excessive agitation during aeration resulting in shearing of floc. I8. Which of the following membrane separation has the minimum pore size? A. RO B. Ultrafiltration C. Microfiltration D. Nanofiltration 19. Which of the following statement is wrong? A. In an electrochemical reaction, anode produces oxidants B. In an electrochemical reaction, anode extracts electrons from organic matters C. In an electrochemical reaction, cathode produces hydroger D. In an electrochemical reaction, cathode produces oxygern te treat this tvne of

Explanation / Answer

16. B. Removal of Organic Compounds.

17. D. Excessive agitation during aeration resulting in shearing of floc.

18. A. RO

19. D.

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