As the developing of economy in Taiwan, the industry transformed from agricultural to industry oriented. Followed the industrial waste become the major source of whole wastes.The industrial waste was mainly from commercial production, agriculture and medical treatment activities with various composition and large amount which is times to general living waste. There were 200 waste producers and reuse organization been investigated during the project proceed. The reuse of industrial sludge is generally for products with low technical demand, such as brick and compost. With the popularization of the technology in recent years, the technology is moisture and not to have large improvement space from foreign ones. Because the industrial sludge is belonging to a buyer’s market, cause the reuse organization relatively less requirement to the source of sludge. In order to prevent illegal reuse and further environmental damage, the project suggests strengthening the administration of industrial sludge. The used etch liquid is the price material, and the products are valuable, thus the market is belonging to a seller’s market. The situation cause the reuse organization with higher quality demand to both material (used etch liquid) and products. There is well performed reuse system and sell channel at present. The foreign regulation and reuse behavior were different to the domestic system. There is an only regulation to the reuse of general waste, not for industrial waste. The advance countries encourage using industrial sludge as the raw material, rather than regulate to only industrial waste.

industrial sludge,used etch liquid,reuse