工业园区地表非点源污染特性

Non-point source pollution to surface in a certain industrial park

通过对苏南某工业园区6类不同功能区内地表沉积物、降雨地表径流和地表水中污染物的分析,探讨了工业园区地表非点源污染的迁移特性.结果表明:工业园区地表沉积物特性和地表径流内污染物对地表水水质有一定的影响.工业园区非点源污染物主要为氮、锌和氟,来自于点源无组织排放形成的气态污染物和大气干湿沉降,其中化工区和光电区为重点防控区域,而办公区的生活污染也应加强控制.主要的防控措施应集中在地表径流的污染控制上,同时加强工业生产中的清洁生产,尤其是控制气态非点源污染物的产生.

In order to search the migration characteristics of non-point source pollution in surface, the pollutant in surface sediments, surface runoff and surface water is analysed in 6 different func- tional divisions of an industrial park in Jiangsu province. The result shows that there is a certain influence among surface sediments characteristic, pollutant in surface runoff and surface water qual- ity. The most important pollutants of non-point source pollution in industrial park are nitrogen, Zn and fluorine, which mainly come from gaseous pollutants of fugitive emission and atmospheric depo- sition. The key pollution control regions are the chemical industry division and photoelectricity division while the domestic pollution control of the office division should be strengthened as well. Pollution control measures should be aimed at surface runoff pollution, and the cleaner production of the factory should be stepped up especially in gaseous non-point source pollutants control.