염료산업 공정과정의 전과정평가 및 경제성평가에 관한 연구

Abstract

There are 117(based in 2000) domestic dye manufacturing companies, and 78.29% of the productions are reactivity dye and dispersibility dye. Most of them are small and medium industries which are managed by small quantity batch production system. In this study, LCA(Life Cycle Assessment) and TCA(Total Cost Analysis) of the dye manufacturing process were tried. The subjects of this study were D company's Black-B, and O company's Yellow 59. They were inventorially analyzed by Batch type and analyzed in Gate-to-Gate way. Because of the weak data base of the middle compound substances, as a specific character of the dye industry, it is hard to estimate LCA at satisfactory level. The functional unit used for LCA was 100Kg in D company's Black-B, and 1Kg in O company's Yellow 59. The impact assessment was estimated in 8 categories including the global warming using Eco-Indicator 95. As a result of TCA, the largest environmental burden of the dye industry was the global warming. And the reason for the global warming effect of Black-B was the Ethylene glycol in the freezer and, in case of Yellow 59, the use of electric power was the cause of the environmental burden. Yellow 59 was because of the use of electric power. In this study, the present environmental problems of Korean dye industries were evaluated, and the result of this study could be used as basis materials for the development of the dye industries. This study deals with LCA and TCA of dye industry. So it could be used to analyze the present economical costs and to decide strategies and directions in the change of the production system and the improvement of the progress.