Engineering, 26.11.2019 21:31 KeyesRaveen

The wastewater treatment plant for pine city discharges 1 × 105 m3 /day of treated waste to the pine river.
immediately upstream of the treatment plant, the pine river has an ultimate cbod of 2 mg/l and a flow of 9 × 105 m3 /day.
at a distance of 20 km downstream of the treatment plant, the pine river has an ultimate cbod of 10 mg/l.
the state’s department of environmental quality (deq) has set an ultimate cbod discharge limit for the treatment plant of 2,000 kg/day. the river has a velocity of 20 km/day. the cbod decay coefficient is 0.1/day.

is the plant in violation of the deq discharge limit?

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The wastewater treatment plant for pine city discharges 1 × 105 m3 /day of treated waste to the pine...

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