Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 12 Oct 2017 My Price 5.00

wastewater-treatment plants

Two towns, located directly across from each other, operate municipal wastewater-treatment plants that are situated along a river. The river flow is 50 million gallons per day (50 MOD). Coliform counts are used as a measure to determine a water's ability to transmit disease to humans. The coliform count in the river upstream of the two treatment plants is 3 coli-forms/100 mL. Town 1 discharges 3 MGD of wastewater with a coliform count of 50 coliforms/100 mL, and town 2 discharges 10 MGD of waste-water with a coliform count of 20 coliforms/100 mL. Assume that the state requires that the downstream coliform count not exceed 5 coliforms/ 100 mL.

(a) Is the state water-quality standard being met downstream? (Assume that coliforms do not die by the time they are measured downstream.)

(b) If the state standard downstream is not met, the state has informed town 1 that they must treat their sewage further so the downstream standard is met. Use a mass-balance approach to show that the state's request is unfeasible.

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Maurice Tutor
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Status NEW Posted 12 Oct 2017 11:10 AM My Price 5.00

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