Roughly what is the maximum volume of treated wastewater


Incoming wastewater , with BOD5 equal to about 200mg/l is treated in well-run secondery treatment plant remove 90 percent of the BOD. you are to run five-day BOD test with a stander 300-ml bottle , using mixture of treated sewage and dilution water(no seed) assume the intial DOis 9.2mg/l

A)roughly what is the maximum Volume of treated wastewater should you put in the bottle if you want to have at least 2.0mg/l of DO at the test (filling the rest of the bottle with the water

b) if you make mixture half water and half treated wastewater, what DO would you expect after five days?

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Civil Engineering: Roughly what is the maximum volume of treated wastewater
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