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报告题目：Trends and Challenges in Unplanned, Planned, and Industrial Wastewater Reuse: A U.S. Perspective

报 告  人： Dr. Paul Westerhoff

                  美国亚利桑那州立大学

时      间：2024年11月05日（周二）上午10:00-11:30

地      点：东校园环境大楼A206

主      持：王鹏教授

欢迎广大师生参加！

报告人简介:

      Paul Westerhoff is a Regents Professor & Fulton Chair of Environmental Engineering at Arizona State University.  He has over 420 peer reviewed publications related to water. He is the Deputy Director of a NSF ERC for Nanotechnology Enabled Water Treatment (NEWT), co-Deputy Director of the NSF Science and Technologies for Phosphorus Sustainability (STEPS) Center, and water-innovation lead for the NSF Southwest Sustainability Innovation Engine (SWSIE) . He received several awards including the 2020 A.P. Black award from AWWA, 2019 NWRI Clarke Prize, 2013 ARCADIS/AEESP Frontier in Research Award, 2006 Paul L. Busch Award, and was elected to the National Academy of Engineering in 2023. 

      Dr. Paul Westerhoff亚利桑那州立大学环境工程学的Regents教授和Fulton主席。他有超过420篇与水相关的同行评审出版物。他是国家科学基金会（NSF）资助的纳米技术赋能水处理工程研究中心（NEWT）的副主任，NSF磷可持续性科学与技术中心（STEPS）的共同副主任，以及NSF西南可持续性创新引擎（SWSIE）的水创新领导者。他获得了多个奖项，包括2020年美国水厂协会（AWWA）颁发的A.P. Black奖、2019年NWRI Clarke奖、2013年ARCADIS/AEESP研究前沿奖、2006年Paul L. Busch奖，并在2023年当选为国家工程院院士。

报告内容简介：

      Population growth and the need for businesses and municipalities to diversify their water resources are driving changes in water management practices. Unplanned, or de facto, reuse of municipal wastewater occurs when treated effluent from upstream wastewater treatment plants is discharged into surface waters that serve as drinking water sources for downstream communities. Although this practice has been ongoing for decades, there is growing recognition of the impact that PFAS (per- and polyfluoroalkyl substances) in wastewater effluents can have on drinking water supplies, especially in light of new USEPA regulations for PFAS in drinking water. Planned potable reuse, both indirect and direct, is expanding rapidly in the USA. While California has traditionally led the way in demonstrating advanced treatment technologies such as microfiltration (MF), reverse osmosis (RO), and advanced oxidation processes (AOP) combined with groundwater recharge, other states are now developing regulations to permit treatment approaches that do not rely on RO. A primary driver for this shift is the challenge of managing RO brine in areas where ocean disposal is not feasible. In these cases, "carbon-based" treatment trains that incorporate ozone and biological filtration are emerging as viable alternatives. For industrial sectors, the need for business resiliency and adherence to corporate sustainability goals is prompting the integration of industrial wastewater into treatment processes. RO membranes are frequently used in these systems, but, similar to municipal applications, brine management remains a significant cost challenge. As a result, innovations in brine management and zero liquid discharge technologies are among the most critical technological needs. Novel approaches, such as atmospheric water harvesting, are also being considered as potential solutions. However, achieving cost-effectiveness will require advancements at both the material and system levels.

      人口增长以及企业和市政当局需要多样化水资源的需求正在推动水资源管理实践的变化。未经规划的或事实上的城市废水再利用发生在上游污水处理厂处理后的废水排放到下游社区作为饮用水源的地表水中时。尽管这种做法已经进行了几十年，但人们越来越认识到废水中的PFAS（全氟和多氟烷基物质）对饮用水供应的影响，特别是鉴于美国环保局（USEPA）对饮用水中PFAS的新规定。计划内的饮用水再利用，包括间接和直接再利用，正在美国迅速扩展。虽然加利福尼亚州传统上一直引领着展示先进的处理技术，如微滤（MF）、反渗透（RO）和与地下水补给相结合的高级氧化过程（AOP），但现在其他州也在制定法规，允许不依赖于RO的处理方法。这一转变的一个主要驱动因素是在海洋排放不可行的地区管理RO浓水的挑战。在这些情况下，结合臭氧和生物过滤的“基于碳的”处理工艺正作为一种可行的替代方案出现。对于工业部门来说，业务弹性的需求和对企业可持续性目标的遵守正在促使将工业废水纳入处理过程中。RO膜通常用于这些系统中，但与市政应用类似，浓水管理仍然是一个重大的成本挑战。因此，浓水管理和零液体排放技术方面的创新是最紧迫的技术需求之一。人们还在考虑将大气水收集等新方法作为潜在的解决方案。然而，要实现成本效益，将需要在材料和系统层面都取得进步。