化工园区污水处理厂排放标准管控指标探析
许利 1何鹏 1张熠杰 2韦娅俪1
作者信息
- 1. 四川省生态环境科学研究院,四川成都 610041
- 2. 俄亥俄州立大学食品、农业和环境科学学院,美国俄亥俄州43214
- 折叠
摘要
通过剖析化工园区集中式污水处理厂出水现行水污染物排放标准,以GB 18918-2002《城镇污水处理厂污染物排放标准》一级A标准或GB 3838-2002《地表水环境质量标准》的Ⅳ类水质标准为基准,采用单因子评价法、综合污染指数评价法和综合毒性评价分析,对17家化工园区集中式污水处理厂出水的15余项理化指标的达标情况进行了评价和讨论,结果显示,常用理化指标已不能完全显示化工废水的毒性影响,需要针对化工园区废水制定专门的水污染物排放标准,设置或开发综合性指标来代替同系物或具有相同属性的物质,包括苯系物、全盐量和生物毒性等指标.
Abstract
By analyzing the status quo of water pollutant discharge standards for centralized sewage treatment plants in chemical industry parks,the"Pollutant Discharge Standards for Urban Wastewater Treatment Plants"(GB 18918-2002)first Class A standard or"Surface Water Environmental Quality Standards"(GB 3838-2002)Class Ⅳwater quality standard as the benchmark,using single factor evaluation method,comprehensive pollution index evaluation method and comprehensive toxicity evaluation analysis to evaluate the compliance of more than 15 physical and chemical indicators of the effluent of centralized sewage treatment plants in 17 chemical industry parks.The results show that commonly used physical and chemical indicators can no longer fully display the toxic effects of chemical wastewater,it is necessary to formulate unique water pollutant discharge standards for chemical industrial park wastewater,set or develop comprehensive indicators to replace homologous or substances with the same properties,including benzene series,total salt content and biological toxicity and other indicators.
关键词
工业废水/管控指标/排放标准/综合毒性Key words
industrial wastewater/control index/discharge standard/whole effluent toxicity引用本文复制引用
基金项目
四川省区域创新合作项目(2022YFQ0036)
出版年
2024
NETL
NSTL
万方数据