Evaluation and optimization of an innovative electrochemical technology for degradation of emergent contaminants from municipal wastewater

用于降解城市废水中突发污染物的创新电化学技术的评估和优化

• 批准号: CCARD-2022-00396
• 负责人: Dufour, Isabelle
• 金额: $ 2.91万
• 依托单位: Cégep de Saint-Laurent
• 依托单位国家: 加拿大
• 项目类别: CCI Applied Research and Development Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=756215
• 关键词: Evaluation; optimization; innovative; electrochemical; technology

This research project is a college-industry collaboration between the Center of Water Technology (Cteau) and BioLargo Water Inc. The project will address specific technical needs of BioLargo Water related to the development and optimization of their innovative electrochemical technology for removal of per- and polyfluoroalkyl substances (PFAS) . The Aqueous Electrostatic Concentrator (AEC) is a novel, disruptive technology combining electrochemistry and membrane technologies for efficient removal of PFAS from water. To date, PFAS removal by the AEC has only been examined in ground water samples. The focus of the proposed work is to expand the sources of water that can be successfully treated with the AEC to include MWW thereby providing a new solution to industries focused on minimizing future discharges of PFASs into the environment. Additional research activities are needed to provide a deeper understanding of reactor performance, lifetime and energy requirements of the AEC for PFAS contaminated MWW. To answer these questions, the proposed project has three activities. The first activity aims to determine and evaluate the residual concentration of 4 PFAS compounds, PFOA, PFOS, PFBS, and PFBA, at the inlet and outlet of the Vaudreuil MWW treatment plant. The second activity will evaluate and optimize the removal efficiency of these four PFAS compounds from MWW using the AEC reactor. Optimal operational conditions (voltage, flow rate, and number of passes) will be identified. The toxicity of treated versus untreated effluents will also be documented and studied in this activity. The third activity will compare conventional processes (such as GAC) to the AEC to determine the most effective process, in terms of both performance and cost, for treating MWW strongly loaded with PFAS. This project will benefit from a unique expertise combining electrochemical techniques and analysis of emergent contaminants, together with an already operational R&D infrastructure, an ingredient essential to the achievement of the objectives of this project.

该研究项目是水技术中心 (Cteau) 和 BioLargo Water Inc. 之间的校企合作项目。该项目将满足 BioLargo Water 公司的特定技术需求，涉及开发和优化其创新电化学技术，以去除过氧化氢和过氧化氢。多氟烷基物质 (PFAS)。水相静电浓缩器 (AEC) 是一种新颖的颠覆性技术，结合了电化学和膜技术，可有效去除水中的 PFAS。迄今为止，AEC 仅在地下水样品中检查了 PFAS 的去除情况。拟议工作的重点是扩大可通过 AEC 成功处理的水源，将 MWW 纳入其中，从而为致力于最大限度减少未来 PFAS 向环境中排放的行业提供新的解决方案。需要进行更多的研究活动，以更深入地了解 PFAS 污染 MWW 的 AEC 的反应器性能、寿命和能源需求。为了回答这些问题，拟议的项目包括三项活动。第一项活动旨在确定和评估沃德勒伊 MWW 处理厂入口和出口处 4 种 PFAS 化合物（PFOA、PFOS、PFBS 和 PFBA）的残留浓度。第二项活动将评估和优化使用 AEC 反应器从 MWW 中去除这四种 PFAS 化合物的效率。将确定最佳操作条件（电压、流量和通过次数）。在此活动中还将记录和研究经过处理的废水与未经处理的废水的毒性。第三项活动将传统工艺（例如 GAC）与 AEC 进行比较，以确定在性能和成本方面最有效的工艺，用于处理富含 PFAS 的 MWW。该项目将受益于结合电化学技术和新兴污染物分析的独特专业知识，以及已经投入运行的研发基础设施，这是实现该项目目标的重要组成部分。