Removal of municipal wastewater effluent toxicity and formation of transformation products of trace organic contaminants after electrochemical oxidation treatment

电化学氧化处理去除城市污水出水毒性及微量有机污染物转化产物的形成

• 批准号: 526373-2018
• 负责人: Segura, PedroAlejandro
• 金额: $ 1.82万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Engage 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=664687
• 关键词: Removal; municipal; wastewater; effluent; toxicity

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 (TOCs) 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. E2Metrix wishes to explore the application of its flagship technology to**the treatment of municipal wastewaters and desires to measure the formation of transformation products of**TOCs frequently reported in urban wastewaters. Also, it is interested in the toxicity of the treated effluents**towards aquatic organisms. Here we propose a 6-month project in close collaboration with E2Metrix to**determine optimal parameters for the electrochemical treatment of municipal wastewaters by measuring the**formation of transformation products and measuring the whole effluent toxicity of the treated wastewater. In**that way, the ECOTHOR-W technology will not produce of unwanted transformation products and the toxicity**of the effluent will be greatly reduced with minimal use of energy. We will adopt a two-fold strategy that will**allow us to attain that objective in due time: 1) Measure the formation of major transformation products of**frequently reported trace organic contaminants using a method based on liquid chromatography and**high-resolution mass spectrometry 2) 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 optimize ECOTHOR-W technology, which will could ameliorate the quality of**municipal effluents and reduce their negative impact the environment. Additionally, our work will give**E2Metrix the opportunity to expand to the municipal wastewater plant market and create new jobs in Canada.

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，废水中存在的痕量有机污染物（TOC），如药品和个人护理产品，刺激了对新的废水处理工艺的研究，这些工艺能够降低城市污水中这些污染物的浓度。ECOTHOR-W技术由E2 Meetings开发，是一种很有前途的技术，用于从工业废水中去除各种污染物，如脂肪，油和油脂，微量金属，总悬浮固体，甚至大肠菌群。E2 Meetings希望探索其旗舰技术在 ** 城市废水处理中的应用，并希望测量城市废水中经常报告的 ** TOC转化产物的形成。此外，它还对经处理的废水 ** 对水生生物的毒性感兴趣。在这里，我们提出了一个为期6个月的项目，与E2 Meetings密切合作，** 通过测量转换产品的 ** 形成和测量处理后废水的整体出水毒性，确定城市废水电化学处理的最佳参数。这样，ECOTHOR-W技术就不会产生不需要的转化产物，并且在使用最少能源的情况下大大降低废水的毒性 **。我们将采取一项双重战略，使我们能够在适当时候实现这一目标：1）使用基于液相色谱和 ** 高分辨率质谱的方法测量 ** 经常报告的痕量有机污染物的主要转化产物的形成2）比较电化学处理和未处理的毒性 ** 使用我的小组最近开发的一种敏感的测定方法，使用水蚤（D。magna）作为 ** 试验微生物。该项目将优化ECOTHOR-W技术，这将改善 ** 城市污水的质量，减少其对环境的负面影响。此外，我们的工作将使 ** E2 Meetings有机会扩展到市政污水处理厂市场，并在加拿大创造新的就业机会。