Jumputan Wastewater Optimization Model Using Green Logistic Network Approach

Jumputan traditional textile industry produce extensive residual waste water beside their main products, traditional fabrics. Over the years, the local government and jumputan producers gave high attention in reducing the bad effect of these wastewater and to protect the environment at the same time. Various techniques appeared in literature to model the problem, one is green logistics network optimization model. This paper proposes the use of network optimization model in optimizing the wastewater treatment processing. The green logistics network approach is used in building the prototype application that used to optimize the waste bank processes. The sensitivity test was conducted on model parameters, i.e. buying price of wastewater, and selling price of clean water produced. The sensitivity analysis was done for Waste Bank parameters in the proposed prototype. From the result of sensitivity test, the optimal solution of Waste Bank operation was modeled. Several insights were observed from the problem, and the optimal production rate and schedule were achieved in the highest profit level. Besides that, the optimal combination of purchasing price of wastewater and selling of clean water at below local water company (PDAM) rate also determined, therefor craftsmen could buy cheaper water to get higher profits.