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单选题 What is the first step used in wastewater treatment plants nowadays
学科：环保专业英语
时间：2024-06-17 04:35:19
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题目1单选题
Discharges into a sanitary sewerage system consist of ______A. domestic wastewaterB. industrial dischargeC. infiltrationD. all of the above
题目2单选题
Primary treatment is that remove nonhomogenizable solids and homogenize the remaining effluentA. physical processB. biological processC. chemical processD. all of the above
题目3单选题
What is the first step used in wastewater treatment plants nowadaysA. screenB. grit chamberC. settling tankD. comminutor
题目4单选题
are activated when screens get sufficiently clogged to raise the water level in front of the barsA. The steel barsB. The cleaning rakesC. The flow meterD. all of the above
题目5单选题
What can a screen removeA. SludgeB. Oil and greaseC. Suspended solidsD. all of the above
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