Review of waste management models indicate that optimization models based on the chain of waste flow are developed and applied in waste management systems. These models do represent the flow of material through few stages and they lack an integrated approach that may include the flow of material from the point of waste generation in different sectors till the end point at the land fill. It is also argued that the existing models do rarely consider the interrelated issues of economics, environment and social aspects. This conclusion has been followed by the development of an integrated multi stage and multi period dynamic model of waste flow based on quasi dynamic optimization techniques. The model has then been applied to study the development of solid waste flow system in a limited district as a case study. The results of the case study reveal that the distributed separation, processing and transformation waste technologies at the source point in different sectors do have considerable impact on the economical and environmental impact of waste flow system. The results show that inclusion of distributed waste processing systems in the model, as an option, leads to reduced total discounted costs of the whole system and the emission of pollutants is decreased.

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