A study of transportation system in reverse logistics for computer wastes in Songkhla

Abstract

        The objective of this research is to reduce operational cost for computer wastes management system in Songkhla province. There are three steps involved in this research; 1) study the current management system, 2) develop a mathematical model for calculation the total cost in the supply chain, and 3) propose appropriate management systems for reducing operational cost. Two strategies for reducing the total computer waste management cost are proposed: 1) all computer wastes are transported from garbage shops to collection centers, and 2) all computer wastes are transported from source of origin to collection center. The results indicate that the total cost is decreased 6% (from 3.647 million baht per month to 3.422 million baht per month) and 34% (from 3.647 million baht per month to 2.413 million baht per month) for first and second approach, respectively.