Development and optimization of Biolargo's electrochemical advanced oxidation system for the treatment of municipal wastewater loaded with refractory pharmaceutical compounds

这项研究项目涉及水技术中心(CTE)和BioLargo Water Inc.，是基于大学和行业的合作。医药产品(PPS)在水生生态系统中的存在和存留给人类生活带来了负面影响，给水生生态系统带来了麻烦。BioLargo正在开发一种新的水处理电化学技术，称为电化学高级氧化系统(EAOS)。具有“六室”的EAOS工艺采用流过电极，水依次流经膨胀石墨阳极、多孔分离器和膨胀石墨阴极。这一研发项目旨在展示创新的EAOS技术在PPS处理的特殊情况下的经济和环境利益。本研究项目将按照以下四个步骤进行组织。第一项活动旨在评估和表征具有六个腔室的EAOS反应器同时产生ROS(H_2O_2、OHO等)的能力。第二个活动将包括开发和优化EAOS的氧化效率，以氧化PPS。在不同的条件下(电流密度、电解时间、pH值、电极类型、PPS浓度等)对EAOS的性能进行评估。优化论文将以批处理和连续运行的方式进行。第三项活动将包括评估和优化EAOS处理含有聚苯硫醚的城市污水的效率。第四个目标是比较传统的氧化法(O_3/H_2O_2)和EAOS法，以确定在处理强负载PPS的MW方面最有效的工艺(从成本效益的角度)。将进行技术经济分析。该项目将受益于将电化学氧化技术和紧急污染物分析相结合的独特专业知识，以及已经投入使用的研发基础设施，这是实现项目目标的关键因素。

This research project involving Center of Water Technology (CTE) and BioLargo Water Inc is based on acollege-industry collaboration. The occurrence and persistence of pharmaceutical products (PPs) in the aquaticecosystems lead to a negative effect on human life and cause troubles on aquatic systems. BioLargo isdeveloping a novel electrochemical technology for water treatment termed the Electrochemical AdvancedOxidation System (EAOS). The EAOS process having "six chamber" uses flow-through electrodes, with thewater flowing sequentially through an expanded graphite anode, a porous separator and an expanded graphitecathode. This R&D project aims to demonstrate the economic and environmental interest of the innovantEAOS technology in the particular case for the PPs treatment. The research project will be structure accordingto the following four steps. The first activity aims to evaluate and characterize the EAOS reactor having sixchamber in terms of its ability to simultaneously produce ROS (H2O2, OHo, etc). The second activity willconsist to develop and to optimize the EAOS efficiency to oxidize the PPs. The performance of the EAOS willevaluated under different conditions (current density, electrolysis time, pH, type of electrodes, PPsconcentrations, etc). The optimization essays will conducted in batch and continuous operation mode. The thirdactivity will consist to evaluate and to optimize the efficiency of the EAOS to treat municipal wastewater(MWW) loaded with PPs. The fourth objective was carried out to compare conventional oxidation process(O3/H2O2) and EAOS to determine the most effective process (in term of cost-effective) in treating MWWstrongly loaded with PPs. A technical-economic analysis will be carried-out. This project will benefit from aunique expertise combining electrochemical oxidation techniques and analysis of emergent contaminants, andan already operational R&D infrastructures, an ingredient essential to the achievement of the objectives of theproject.