Daily Question 2015.10.23 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (multiple-choice question)
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The methods suitable for controlling odors in urban sewage treatment systems are ( ). A. Limestone-gypsum method B. Biological deodorization method C. Chemical absorption method D. Bag filtration method. Answer: BC. Explanation: The focus here is on understanding the basic principles and techniques related to major volatile organic compounds, malodorous gases, and halogenated gases, as well as the criteria for selecting appropriate methods for dealing with them. Chapter 13, Section 2, P375: The control of odorous pollution should be determined through a technical and economic comparison of various options, with biological deodorization methods being given priority. Facilities that require no frequent manual maintenance, such as grit chambers, primary sedimentation tanks, and sludge thickening tanks, should employ fixed sealing measures to control odors ； For facilities that require regular maintenance, such as grid rooms, sump wells in pump houses, and sludge dewatering rooms in sewage treatment plants, local movable or simple odor containment measures should be employed to control odors.
B, C,-------------------------------------------
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The methods suitable for controlling odors in urban sewage treatment systems are (B C). A. Limestone-gypsum method B. Biological deodorization method C. Chemical absorption method D. Bag filtration method
The methods suitable for controlling odors in urban sewage treatment systems are (BC). A. Limestone-gypsum method B. Biological deodorization method C. Chemical absorption method D. Bag filtration method
The methods suitable for controlling odors in urban sewage treatment systems are (ABC). A. Limestone-gypsum method B. Biological deodorization method C. Chemical absorption method D. Bag filtration method
The methods suitable for controlling odors in urban sewage treatment systems are (BC). A. Limestone-gypsum method B. Biological deodorization method C. Chemical absorption method D. Bag filtration method
The methods suitable for controlling odors in urban sewage treatment systems are (B, C). A. Limestone-gypsum method B. Biological deodorization method C. Chemical absorption method D. Bag filtration method. Reason: The treatment of odorous pollution should be determined through a technical and economic comparison of various options, with the biological deodorization method being given priority. Facilities that require no frequent manual maintenance, such as grit chambers, primary sedimentation tanks, and sludge thickening tanks, should employ fixed sealing measures to control odors ； For facilities that require regular maintenance, such as grid rooms, sump wells in pump houses, and sludge dewatering rooms in sewage treatment plants, local movable or simple odor containment measures should be employed to control odors.
B. . . . . . . . . . . . .
The methods suitable for controlling odors in urban sewage treatment systems are (bc). A. Limestone-gypsum method B. Biological deodorization method C. Chemical absorption method D. Bag filtration method