8. A waste water sample has k, = 0.2 /day and ultimate BOD (L) 200 mg/l. What is the final dissolved oxygen (DO) at 5 da
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8. A waste water sample has k, = 0.2 /day and ultimate BOD (L) 200 mg/l. What is the final dissolved oxygen (DO) at 5 da
8. A waste water sample has k, = 0.2 /day and ultimate BOD (L) 200 mg/l. What is the final dissolved oxygen (DO) at 5 days in a BOD bottle in which the sample is diluted 1:20 and where the initial DO is 10.2 mg/1? (5)
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