test with a standard 300 mL bottle using a mixture of treated sewage and dilution water. Assume the initial DO is 9.2 mg/L in the BOD test.. A. What is the maximum volume of treated wastewater that I should put in the bottle if I want to at least have 2.0 mg/L of DO at the end of the test. B. If you make the mixture half dilution water and half treated wastewater, what DO would I expect after 5-days.
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