Suspect screening and risk assessment of pollutants in the wastewater from a chemical industry park in China
Suspect screening and risk assessment of pollutants in the wastewater from a chemical industry park in China
复制标题
某化工园区废水污染物疑似筛查及风险评估
DOI：
10.1016/j.envpol.2020.114493
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发表时间：
2020-08-01
影响因子：
8.9
通讯作者：
Wei, Si
中科院分区：
文献类型：
--
作者：
Liu, Wei;Yao, Hongye;Wei, Si
由于化学工业园区生产和使用化学品，这些地区被认为是高度污染的。然而，CIP废水中存在的污染物类型以及由于这些污染物的释放而对环境造成的风险仍然不清楚。在这项研究中，嫌疑人筛选相结合的可追溯性分析，以确定在9个化工企业和污水处理厂（WWTP）的CIP废水中存在的污染物的类型。此外，通过目标分析，研究了污水处理厂出水阶段9种污染物的分布及其对周围河流的风险。通过可疑分析，初步确定9家化工企业废水和污水处理厂分别含有65种和64种化学品。对污水处理厂出水中筛选出的化合物进行溯源性分析，确定了41种物质为化工企业的特征污染物，表明与传统的定量分析相比，可疑筛选策略能够相对更有效地识别特征污染物。目标分析结合生态风险评价表明，异丙甲草胺、多菌灵、莠去津、敌草隆和毒死蜱对周边河流水生生物具有较高的风险。因此，对工业园区污水处理厂进行精细化管理十分必要。(C)2020爱思唯尔有限公司保留所有权利。
Owing to the production and use of chemicals in chemical industry parks (CIPs), these areas are considered to be highly polluted. However, the type of pollutants presents in the wastewater from CIPs and the risk posed to the environment due to the release of these pollutants remains unclear. In this study, suspect screening was combined with traceability analysis to determine the type of pollutants present in wastewaters at 9 chemical enterprises and wastewater treatment plants (WWTPs) in the CIPs. Additionally, the distribution of nine pollutants from the WWTPs' effluent stage and the risk they posed to the surrounding river was examined through target analysis. Upon conducting suspect analysis, the presence of 65 and 64 chemicals in the 9 chemical enterprises' wastewaters and WWTPs, respectively, was tentatively identified. Traceability analysis of the compounds screened in the effluent from the WWTPs determined that 41 substances were identified as characteristic pollutants of the chemical enterprises, indicating that the suspect screening strategy enabled relatively more efficient identification of the characteristic pollutants compared to traditional quantitative analysis. Targeting analysis combined with ecological risk assessment showed that metolachlor, carbendazim, atrazine, diuron, and chlorpyrifos posed relatively higher risks to aquatic organisms in the surrounding river. Therefore, the refined management of the wastewater treatment plant in the CIPs is necessary. (C) 2020 Elsevier Ltd. All rights reserved.