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# Assume that there are two sites along a stream, i=1, 2, at which industrial waste is discharged to the river

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Assume that there are two sites along a stream, i=1, 2, at which industrial waste is discharged to the riverCurrent discharge levels are W; and W2 at these sites. Industrial waste significantly dete... riorates water quality in the river, and water quality is being monitored in sites 2 and 3. Currently, without any wastewater treatment, the water quality at each of sites 2 and 3 (q: and qg) is less than the minimum desired, Q2, Q3, respectively. At each site i, there is a waste treatment option available. R i is the fi'acrion of waste discharge (WE) being treated at site 1'. The cost per unit of waste treated is 6:. For each unit of waste treated at site i upstream of site j, the quality improves by Ag. W1 Stream W2 Part 2-1) Formulate a linear programming model to determine how much treatment is required at sites 1 and 2 that meets the standards at a minimum total cost. Specify the objective function, decision variable(s) and the [Show More]

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