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Data from an unseeded domestic wastewater BOD test are 5.0 ml of wastewater in a 300-ml bottle, initial DO of 7.8 mg/l, and 5-day DO

Data from an unseeded domestic wastewater BOD test are 5.0 ml of wastewater in a 300-ml bottle, initial DO of 7.8 mg/l, and 5-day DO equal to 4.3 mg/L. Compute (1) the BOD5 (2) the ultimate BOD, assuming a k-rate of 0.10 per day

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