Studies of the on the fate and toxicity of trace organic contaminants in a pilot electrochemical wastewater treatment plant

电化学污水处理厂中微量有机污染物的去向和毒性研究

• 批准号: 537374-2018
• 负责人: Segura, PedroAlejandro
• 金额: $ 0.91万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Engage Plus Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=664686
• 关键词: Studies; fate; toxicity; trace; organic

The presence of a multitude of organic contaminants in wastewaters requires increasingly efficient technologies**to avoid contamination of surface and coastal waters. In the last 20 years, the presence of trace organic**contaminants such as pharmaceuticals and personal care products in wastewaters has stimulated research for**new wastewater treatment processes able to reduce the concentration of those contaminants in municipal**sewage. The ECOTHOR-W technology, developed by E2Metrix, is a promising technology for the removal of**diverse contaminants from industrial wastewaters such as of fats, oils and grease, trace metals, total suspended**solids, and even coliforms. In the summer 2018, E2Metrix installed a pilot plant in a regional wastewater**treatment plant and it wishes to explore the application of its flagship technology to the treatment of municipal**wastewaters. Thanks to an Engage project, we confirmed the presence of several trace organic contaminants in**the municipal effluents and performed analysis of transformation products and toxicity of wastewater before**and after electrochemical treatment. Those results were useful to identify chemical targets and set a baseline**that will be used to compare the performance applying different treatment conditions. Here we propose a**6-month project that aims to continue that project to finish the optimization of operational conditions for the**electrochemical treatment of municipal wastewaters. We will adopt a three-fold strategy that will allow us to**attain that objective in due time: 1) Quantify the removal of target contaminants in water and sewage sludge; 2)**Qualify the formation of transformation products of frequently reported trace organic contaminants and the**elimination of non-targeted contaminants and 3) Compare the toxicity of electrochemically treated and**untreated municipal effluents using a sensitive assay recently developed by my group that uses water fleas (D.**magna) as test organism. This project will help find optimal operational conditions for ECOTHOR-W**technology applied to municipal wastewaters, which will could ameliorate the quality of municipal effluents**and reduce their negative impact on the environment.

沃茨中存在大量有机污染物，因此需要越来越有效的技术 ** 来避免污染地表水和沿海沃茨。在过去的20年里，废水中微量有机污染物（如药物和个人护理产品）的存在刺激了对能够降低城市污水中这些污染物浓度的新废水处理工艺的研究。ECOTHOR-W技术由E2 Meetings开发，是一种很有前途的技术，可用于去除工业废水中的各种污染物，如脂肪、油和油脂、微量金属、总悬浮固体，甚至大肠菌群。2018年夏天，E2 Meetings在一个区域污水处理厂安装了一个试验工厂，并希望探索其旗舰技术在城市污水处理中的应用。得益于Engage项目，我们确认了 ** 市政污水中存在多种微量有机污染物，并对电化学处理前后的转化产物和废水毒性进行了分析。这些结果有助于确定化学目标和设定基线 **，用于比较采用不同处理条件的性能。在这里，我们提出了一个为期6个月的项目，旨在继续该项目，以完成城市污水电化学处理的操作条件的优化。我们将采取三重策略，以便我们在适当时候实现这一目标：1）量化水和污水污泥中目标污染物的清除; 2）** 鉴定经常报告的痕量有机污染物的转化产物的形成和非目标污染物的消除，以及3）比较电化学处理和 ** 的毒性。未经处理的城市污水使用敏感的测定最近开发的由我的小组，使用水蚤（D.** Magna）作为试验微生物。该项目将有助于为应用于城市废水的ECOTHOR-W** 技术找到最佳操作条件，这将改善城市废水的质量 ** 并减少其对环境的负面影响。