A systematic approach for waste exchange in Bang Poo Industrial Estate and a case study of steel scrap exchange

Abstract

A waste exchange system was created with Microsoft Office Access 2003. Primarily data input in the database was obtained from industrial waste disposal permission sheet, which each factory submitted to BPIE. 108 out of 383 factories in BPIE provide data for this study case that consist of factory name, factory type and general process, location and address, waste type and amount, and disposal method. Six feasible waste exchange networks were purposed, including glass scrap, steel scrap, plastic scrap, paper waste, wood, and chemical sludge. This database could be useful for 4 main individual sectors: 1) waste users, 2) waste generators, 3) estate information center, and 4) executive manager for further developing plan. Focusing on steel scrap exchange, 4 factories would be available as waste users, whereas 33 factories would possible to provide the waste regularly 31 thousand tons a year (2004 fiscal data). It would be possible for the estate to encourage waste exchange network by cutting cost approximately 40% by using the internal logistic. However, an implementation in steel scrap pointed that waste characteristics and properties play the key role of waste exchange network setting up.