Ozone-based wastewater treatment for disinfection and removal of micropollutants

污染控制对于实现联合国为指导21世纪世纪全球发展而制定的水和卫生可持续发展目标（即SDG 6）至关重要。在全球范围内，80%排放到环境中的废水未经处理。在加拿大，许多农村社区，特别是土著社区，正在将未经妥善处理的废水排入水生环境。在水资源日益短缺的情况下，废水回用现在被认为是扩大水资源获取的一个可行选择（即“厕所到水龙头”）。我提出的关于臭氧水处理策略发展的研究计划建立在我在麦吉尔大学过去15年来在NSERC和其他资助机构，私营部门和政府机构的支持下开发的专业知识的基础上。这项工作将积极促进第6号新加坡元的目标，即普及清洁用水和卫生设施，将未经处理的废水排放量减半，并改善水质。我的工作重点是减少废水中微污染物的排放，这符合欧洲议会于2019年4月通过的一项决议，该决议呼吁采取更大行动来监管对当代和后代健康构成严重威胁的内分泌干扰化学品（EDCs）。在加拿大，联邦政府和几个省（如不列颠哥伦比亚省，安大略）制定了水质准则，以保护水生生物免受几种药物和其他微污染物的影响。法规的制定将增加改善废水处理的需求，以减轻环境中EDCs和其他微污染物的释放。正如《柳叶刀》污染与健康委员会所指出的那样，不能再将污染视为一个孤立的环境问题，而应将其视为一个影响整个社会健康和福祉的超越性问题。因此，领导人和政府必须将污染控制提高到一个高度优先的问题。我提出的研究计划也将有助于发展新的知识，在环境和工程系统中的几种污染物的存在和命运，包括最近关注的污染物，如全氟烷基和多氟烷基物质（PFAS）。从中长期来看，我所提议的研究将有助于知识和技术的发展，以确保由于更严格的法规而需要的高级处理技术的投资具有去除微污染物和最大限度地减少残留毒性的额外好处。

Pollution control is essential to achieving the objectives of the Sustainable Development Goal for water and sanitation (i.e. SDG 6) established by the United Nations to guide global development in the 21st century. Globally, 80% of wastewater discharged into the environment is untreated. Here in Canada, many rural and particularly Indigenous communities are discharging poorly treated wastewater into the aquatic environment. In the context of increasing water scarcity, wastewater reuse is now considered a viable option for expanding access to water resource (i.e. "toilet to tap"). My proposed research program on the development of ozone-based water treatment strategies builds on the expertise that I have developed at McGill University over the past 15 years with support from NSERC and other funding agencies, the private sector and governmental agencies. This work will actively contribute to the SGD 6 objectives of providing universal access to clean water and sanitation, halving the discharges of untreated wastewater and improving water quality. The focus of my work on reducing discharges of micropollutants in wastewater is in line with a resolution passed by the European Parliament in April 2019 calling for greater action to regulate endocrine-disrupting chemicals (EDCs) that pose a serious threat to the health of current and future generations. Here in Canada, agencies for the federal government and several provinces (e.g. B.C., Ontario) have developed water quality guidelines to protect aquatic life for several pharmaceuticals and other micropollutants. The development of regulations will increase the need to improve wastewater treatment to mitigate the release of EDCs and other microcontaminants in our environment. As stated in the Lancet Commission on Pollution and Health, pollution can no longer be viewed as an isolated environmental issue, but rather as a transcendent problem that affects the health and wellbeing of entire societies. Thus, leaders and government must elevate pollution control to an issue of high priority. My proposed research program will also contribute to the development of new knowledge on the presence and fate of several contaminants in the environment and engineered systems, including contaminants of more recent concerns, such per- and polyfluoroalkyl substances (PFAS). Over the medium to long term, my proposed research will contribute to the development of knowledge and technologies to ensure that investments in advanced treatment technologies, which are required because of more stringent regulations, have the added benefit of removing micropollutants and minimizing residual toxicity.