Daily Question 2015.10.31 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (multiple-choice question)
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This post was last edited by Zhang Xiaopeng on 2015-10-31 at 10:31. The processes used to remove suspended solids from water include: A. Sedimentation, B. Sand filtration, C. Air flotation, D. Ion exchange. The correct answers are ABC. Explanation: In the primary treatment of wastewater, sedimentation is the main process used to remove precipitable solid substances suspended in the wastewater. Sand filtration can remove SS and COD from water. Air flotation is suitable for removing suspended solids, oils, and fats with a density of less than 1 kg/L in water. It can be used in wastewater treatment as well as in sludge concentration. Desalination and purification of raw water through ion exchange.
Processes used to remove suspended solids from water include: B, sand filtration
B. Sand filtration. . . . . . . . . . . . . . . . .
A. Precipitation B. Sand filtration C. Air flotation
Processes used to remove suspended solids from water include: (abcd) A. Sedimentation B. Sand filtration C. Air flotation D. Ion exchange
The processes used to remove suspended solids from water are A, C: sedimentation and air flotation
Selection: A. Precipitation B. Sand filtration C. Air flotation D. Ion exchange
Processes used to remove suspended solids from water include: A. Sedimentation, B. Sand filtration
A. Precipitation B. Sand filtration C. Air flotation
ABC ion exchange does not remove SS
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