Application of Fuzzy Mathematics Method on Establishment of Clean Production Evaluation Index System in Baotou Mixed Rare Earths Concentrate Enterprises

The reasonable classification of evaluation indexes is a problem for the establishment of the index system of cleaner production. The fuzzy mathematics assessment method was used for indicator classification in the establishment of clean production evaluation index system of Baotou mixed rare earths concentrate industry. The results show that, instead of comparison among single indicators, the holistic assessment combines indicators of production process and equipment, resource and energy consumption, pollutants generation, product characteristics and cleaner production management, presents an integrated result by the fuzzy subordination, and obtains synthetic ordering of multiple evaluation objects. This kind of method makes the grading result more scientific, rational and objective, which is practical for the establishment of clean production evaluation index systems in other industries.