VERIFICATION METHOD OF THE PERMITTED EMISSIONS OF PRINTING AND DYEING ENTERPRISES BASED ON ADVANCED TECHNOLOGIES: A CASE STUDY OF THE TAIHU LAKE BASIN

In response to the special requirements for water environment quality improvement in the Taihu Lake Basin, this article focused on the printing and dyeing industry in the Taihu Lake Basin, and built an enterprise advanced in production technology and equipment, resource and energy utilization, pollutant generation, economic benefits, process equipment, treatment effects, and management level. The evaluation index system for performance, and printing and dyeing products were refined into 4 categories from 5 categories in the Water Pollutant Discharge Standard for Textile Dyeing and Finishing Industry (GB 4287-2012). The study found that the pollutants discharge load limit per unit product calculated and strictly obtained using four methods including enterprise monitoring data, industry standards, environmental statistics and pollutant discharge permit declaration data was far lower than the current national emission limit. On this basis, a complete technical plan was formed, which could provide a basis for the determination of pollution permit limits for this industry and other industries based on advanced technologies, and provide technical support for the implementation of the pollution permit system.