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the town of avon discharges 15000 m^3/day of treated wastewater into pebble creek. the treated wastewater...

the town of avon discharges 15000 m^3/day of treated wastewater into pebble creek. the treated wastewater has a 5-day CBOD of 12mg/L and a decay constant of 0.12/day. pebble creek flow rate is 0.43 m^3/sec and ultimate CBOD of 5mg/L. the DO of the creek is 8.0 mg/L and that for waste is 1.0 mg/L. calculate the dissolved oxygen concentration and the ultimate BOD of mixture.

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