摘要：

工业废水中毒害污染物的识别是废水管控的难点。本研究融合细胞毒性及其污染物非靶检测方法，开展了典型集成电路废水处理单元出水中的关键污染物甄别研究。结果发现二沉池及强化二沉池出水中高响应可疑物均为酰胺类含氮化合物。基于人肝癌细胞(HepG2)毒性效应导向的分馏分析发现，两种水体高毒馏分中可疑物主要为含氮化合物、含氟酮类化合物和酯类物质，但两种水体的具体高致毒物质不同，可能是强化工艺对污染物的差异化混凝去除所致。本研究可为集成电路废水中关键致毒物质甄别提供方法学参考。

关键词: 电子废水, 关键致毒物质, 效应导向分析

Abstract:

The identification of toxic pollutants in industrial wastewater is a difficult problem in wastewater management and control. This study combined cytotoxicity and non-target detection methods to perform the identification of key pollutants in the effluent of a typical integrated circuit wastewater treatment unit. The results showed that the suspicious substances with the high response in the effluent of the secondary sedimentation tank and the enhanced secondary sedimentation tank were all amide compounds containing nitrogen. Fractionation analysis based on the cytotoxic effects of HepG2 cells found that the suspicious substances in highly toxic fractions of effluents were mainly nitrogen-containing compounds, fluorine-containing ketone compounds, and esters. However, the specific toxic substances of the two effluents were different, which might be due to the selective removal of the pollutants during the enhanced process. This study can provide a methodological reference for the identification of key toxic substances in integrated circuit wastewater.

Key words: integrated circuit wastewater, key toxic substances, effect-directed analysis

中图分类号: 

• X703