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A complete mix activated sludge secondary treatment plant has an effluent standard of 30 mg/L SS and 20 mg/L BODS. Assuming the BODS may be estimated as equal to 60% of the SS concentration. The allowable soluble BODS is most nearly. OA 7 mg/L 18 mg/ OB. 10 mg/ 13 mg/

A complete mix activated sludge secondary treatment plant has an effluent standard of 30 mg/L SS and 20 mg/L BODS. Assuming the BODS may be estimated as equal to 60% of the SS concentration. The allowable soluble BODS is most nearly. OA 7 mg/L 18 mg/ OB. 10 mg/ 13 mg/

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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This is for a water and wastewater review. It's not for a grade I just need to understand the problems. Chose one of the answer choices. 

5 A complete mix activated sludge secondary treatment plant has an effluent standard of 30 mg/L SS and 20 mg/L BODS. Assuming the BODS may be estimated as equal to 60% of the SS concentration. The allowable soluble BODS is most nearly. A.7 mg/L B. 18 mg 10 mg/ OC. OD. 13 mg/
Transcribed Image Text:5 A complete mix activated sludge secondary treatment plant has an effluent standard of 30 mg/L SS and 20 mg/L BODS. Assuming the BODS may be estimated as equal to 60% of the SS concentration. The allowable soluble BODS is most nearly. A.7 mg/L B. 18 mg 10 mg/ OC. OD. 13 mg/
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