Which of the following is/are correct about BOD in municipal sewage? 1. It must be removed because it is always pathogenic and thus poses a risk to public health 2. It is utilized by the microorganisms which thus reduces adverse environmental effects 3. It is typically wholly particulate and can be removed by settling 4. It is partly solid and can only be partially removed by settling 5. It is a carbon and energy source for microorganisms in the sludge O 2, 4 and 5 O 1, 3 and 5 O3,4 and 5 O 1, 2 and 3 Clear my choice

Which of the following is/are correct about BOD in municipal sewage? 1. It must be removed because it is always pathogenic and thus poses a risk to public health 2. It is utilized by the microorganisms which thus reduces adverse environmental effects 3. It is typically wholly particulate and can be removed by settling 4. It is partly solid and can only be partially removed by settling 5. It is a carbon and energy source for microorganisms in the sludge O 2, 4 and 5 O 1, 3 and 5 O3,4 and 5 O 1, 2 and 3 Clear my choice

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter6: Biological Processes

Section: Chapter Questions

Problem 6.3P

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