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

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Basic Concepts of Water Resource Sustainability

The majority of the earth's surface is composed of water. The water which is available for use by the living beings on earth comes from various water resources. Water resources are the naturally occurring water bodies that are intended to be used by the living beings on earth for drinking and other uses. Water resources provide 3% as freshwater, 97% as saltwater, two-thirds of which are frozen as glaciers and ices. The remaining water which generally doesn't remain frozen are the water resources found underground, precisely known as groundwater. The majority of these water sources act as non-convention sources of power generation, like in hydropower stations.

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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/

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