Daily Water Treatment Question (12.5)

2016-12-05View Original

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1. The wastewater treatment system is in the preparation stage for operation; what might affect its normal functioning is (　　). A. Recovery of the active components in high-concentration wastewater; B. The pretreatment facilities for wastewater in the production units are not operating properly; C. Quality control of wastewater between the primary treatment station and the wastewater treatment plant (for centralized treatment); D. Quality control of the water output from secondary treatment and the wastewater reuse systems. 2. Which of the following options does not conform to the principles governing the design of wastewater treatment systems? (　　) A. Constantly changing processing procedures B. Reducing secondary pollutants C. Simple operation D. Lowering operating costs B;A

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Daily Water Treatment Question (12.5)

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