Optimizing an Industrial Ecosystem for Economic and Environmental Objectives

4 Optimizing an Industrial Ecosystem for Economic and Environmental Objectives 

In this section, we describe optimization of an industrial ecosystem (IE) having 6 plants for multiple economic and environmental objectives. The motivation and model of this IE follows that of Singh and Lou (2006) for an IE with 4 plants. The industrial symbiosis of Kalundborg, Denmark (Jacobsen, 2006), is the classic example of an IE. It began in 1961 when there was limited supply of ground water and the oil refinery, Statoil, initiated a project to utilize the surface water from Lake Tiss0. Thereafter, the number of partners gradually increased as about 20 more collaborative projects were introduced. Today, there are a total of 8 

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