...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of environmental sciences >Monitoring of 943 organic micropollutants in wastewater from municipal wastewater treatment plants with secondary and advanced treatment processes
【24h】

Monitoring of 943 organic micropollutants in wastewater from municipal wastewater treatment plants with secondary and advanced treatment processes

机译：高级和先进治疗过程的城市废水处理厂废水中943种有机微量舒适性监测

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To perform a systematic survey on the occurrence and removal of micropollutants during municipal wastewater treatment, 943 semi-volatile organic chemicals in 32 wastewater samples including influents of secondary treatments, secondary effluents and final effluents (effluents of advanced treatments), which were collected from seven full-scale municipal wastewater treatment plants (MWTPs) in China, were examined by gas chromatography-mass spectrometry (GC-MS) coupled with an automated identification and quantification system with a database (AIQS-DB). In total, 196 and 145 chemicals were detected in secondary and final effluents, respectively. The majority of the total concentrations (average removal efficiency, 87.0%+/- 5.9%) of the micropollutants were removed during secondary treatments. However, advanced treatments achieved different micropollutant removal extents from secondary effluents depending on the different treatment processes employed. Highly variable removal efficiencies of total concentrations (32.7%-99.3%) were observed among the different advanced processes. Among them, ozonation-based processes could remove 70.0%-80.9% of the total concentrations of studied micropollutants. The potentially harmful micropollutants, based on their detection frequency and concentration in secondary and final effluents, were polycyclic aromatic hydrocarbons (PAHs) (2-methylnaphthalene, fluoranthene, pyrene, naphthalene and phenanthrene), phosphorus flame retardants (tributyl phosphate (TBP), tris(2-chloroethyl) phosphate (TCEP) and tris(1,3-dichloro-2-propyl) phosphate (TDCP)), phthalates (bis(2-ethylhexyl)phthalate (DEHP)), benzothiazoles (benzothiazole, 2-(methylthio)-benzothiazol, and 2(3H)-benzothiazolone) and phenol. This study indicated that the presence of considerable amounts of micropollutants in secondary effluent creates the need for suitable advanced treatment before their reuse. (c) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
机译：在城市废水处理期间对微核性的发生和去除进行系统调查，32个废水样品中的943个半挥发性有机化学物质，包括二次治疗，二次污水和最终流出物的影响（先进治疗的污水），从7中收集通过气相色谱 - 质谱（GC-MS）检查中国全级市政废水处理厂（MWTPS），与具有数据库（AIQS-DB）的自动识别和定量系统耦合。总共，分别在次级和最终流出物中检测到196和145个化学品。在二次处理期间除去总浓度的总浓度（平均除去效率，87.0％+ / - 5.9％）。然而，提前治疗取决于所用的不同处理过程，从二级流出物中获得了不同的微量润肤剂去除范围。在不同的先进过程中观察到总浓度的高度可变去除效率（32.7％-99.3％）。其中，基于臭氧的方法可以去除所研究的微孔径总浓度的70.0％-80.9％。基于次级和最终流出物中的检测频率和浓度的潜在有害的微污染物是多环芳烃（PAH）（2-甲基萘，氟，芘，萘和菲恩甲苯），磷阻燃剂（磷酸三丁基（TBP），TRIS （2-氯乙基）磷酸盐（TCEP）和Tris（1,3-二氯-2-丙基）磷酸盐（TDCP）），邻苯二甲酸酯（双（2-乙基己基）邻苯二甲酸酯（DEHP）），苯并噻唑（苯并噻唑，2-（甲基） - 苯甲酸噻唑，和2（3H） - 苯甲酸苯甲酮）和苯酚。本研究表明，二次出水中大量微量渗透剂的存在产生了在重用之前对适当的先进治疗。 （c）2017中国科学院生态环境科学研究中心。 elsevier b.v出版。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号