In recent years, Shangyu District, Shaoxing, Zhejiang has focused on improving the quality of water environment, and promoted the construction of "zero direct discharge area of sewage". The 90 chemical enterprises scattered outside the park and more than 20 printing and dyeing enterprises have been integrated into the park. Up to now, 36 industrial parks (industrial agglomeration areas) in Shangyu have started construction projects of "zero direct discharge area of sewage", with a total investment of 22 million 910 thousand yuan.
Shangyu district should seize the source and control the key node, promote the transformation project of rainwater and sewage diversion in the park, implement the standardized transformation of the discharge port, and build the "last mile" sewage pipe network of the township (street) industrial enterprise to reduce the pollution from industrial sources. At the beginning of 2019, with the local two companies sluice as the mark, Shangyu road ruins Chemical District shut down and quit. Shangyu has promulgated a standard for upgrading and upgrading chemical industry, and has strict benchmarking on such problems as backward production capacity, low standards, and disordered layout. In the past three years, 79 chemical industries have been shut down and transformed, and 395 enterprises have been eliminated.