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The global green economy issues have attracted increasing attention. The European Union directives make use of their ＂market＂ and ＂economic＂ power to push global electronic and electrical machinery manufacturers and countless components manufacturers around the world to fulfill cleaner production. In recent years, the Industrial Development Bureau (IDB) provides guidance and promotes the Cleaner Production (CP) and hopes the company could match to global marketing environmental demand, enhance corporate social responsibility, and achieve the goal of sustainable operation. In 1997, the United Nations Environment Programme (UNEP) defined the term Cleaner Production as “Cleaner Production is the continuous application of an integrated preventative environmental strategy to processes, products and services to increase efficiency and reduce risks to humans and the environment”. Faced the increasing sense of environmental protection, the concept of cleaner production is introduced to accomplish better management of manufacturing processes as well as to reduce the end-of-the-pipe pollution and the use of toxic materials. Sustainability is ultimately about making more efficient use of resources, and cutting waste not only for the good of the earth and society, but it is also a good business practice. It is important for companies to ensure the product quality, and to reduce the enterprise environmental cost. In this study, the six standard deviations method which uses the D-M-A-I-C (Define-Measure-Analyze-Improve-Control) approach to improve the system operation is employed. It has incorporated the characteristic figure, the Plato figure, effect figure, SPC and other quality control charts as well as Minitab software as tools for understanding, optimizing and improving the operating conditions. This would help in improving the product quality of recovered copper sulfate while reducing the operating cost at the same time. The results indicate that there are a total of 15 factors influencing the product quality. Via the detailed analysis and team discussion, the influencing factors are reduced to 2 major factors including pH control and concentrations of copper sulfate. Through the design of experiment, it is found that the pH control in weak alkaline, copper sulfate quality of stable sequence of events, both the operation efficiency can be enhanced and the steam needed can be reduced. As a result, the optimal condition for the case study shows that controlling the pH in the range 6 to 10 will result in better quality of the copper sulfate and maintains a process efficiency of 75%. From the Cleaner Production concept to successful implementation, the produce quality was increased from rank C to rank B, Process capacity index Cpk was increased from 1.079 to 1.587. Furthermore, the steam consumption was cut by 37% and the reduction of industrial waste was about 78%. | en_US |