【Daily Question】Wastewater Knowledge-107 (June 24) (2 points for answering, 4 points for a correct answer)
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The presence of protozoa in the activated sludge indicates that A、the wastewater purification effect is not significant; B、the water treatment efficiency is good; C、the water treatment efficiency is poor; D、a large number of such organisms indicate better water treatment efficiency. B、the water treatment efficiency is good
The presence of metazoa in the activated sludge indicates B
The presence of metazoa in the activated sludge indicates poor water treatment efficiency
The presence of protozoa in the activated sludge indicates that A. the wastewater purification effect is not significant; B. the water treatment effect is good; C. the water treatment effect is poor; D. a large presence of such organisms implies a better water treatment effect. Answer: B
The presence of protozoa in the activated sludge indicates that (B) A. The wastewater purification effect is not significant B. The water treatment efficiency is good C. The water treatment efficiency is poor D. Their large presence implies better water treatment efficiency
The presence of metazoa in activated sludge indicates (D)