Model of an IE with Six Plants

The model equations for the IE are given below by considering Plant 

In the above equations, M is the mass flow rate of the stream indicated by its subscript, oris the ratio of the total plant capacity (X,) that is sold as product while (l-o) is the ratio of X, that is regarded as waste stream. Zn is the proportion of the waste stream that is untreated while Zu is the proportion that is treated. Z21, Z22 and Z23 are the ratios in which the untreated waste is split to be recycled internally, to be sold to a neighboring plant and to be disposed off respectively. In a similar way, Z31, Z32 and Z33 are the ratios in which the treated waste is split to be recycled internally, to be sold to the market and to be disposed off respectively. The renewable and non-renewable feed streams are represented by Ri and M respectively. In equation 10.24, is the ratio of the amount of the nonrenewable feed (sum of A, and ) to the 

Quantity Plant 1 Plant 2 Plants Plant 4 Plant 5 Plant 6 

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