Developing Low Energy Photo-based Water and Wastewater Treatment Technologies

开发低能量光水和废水处理技术

• 批准号: RGPIN-2019-04809
• 负责人: Achari, Gopal
• 金额: $ 2.62万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=737874
• 关键词: Developing; Low; Energy; Photo; based

The focus of this research program is the development of energy efficient water and wastewater treatment technologies that are scalable, have a small carbon footprint and can be applicable in remote locations in Canada as well as in developing countries. A decrease in fresh water availability, ever-increasing population and strong link between non-renewable energy and climate change highlight the need for energy efficient technologies. Amongst evolving technologies, advanced oxidative processes (AOPs) hold significant promise. While successful application of AOPs has been demonstrated to effectively degrade many contaminants, at its current state of art, AOPs are quite energy intensive. However, this can change if we can harness sunlight/visible light to photo catalytically treat contaminants and advance it to a deployable technology. The technologies to be developed through this program form the basis of Smart Water Technologies that can be applied for both small and large scale water and waste water treatment. They can be used to treat drinking water and reclaim water for reuse. They will (a) provide disinfection as well as (b) treat emerging contaminants (pharmaceuticals, personal care products, pesticides, household chemicals and others) being continually released through treated wastewaters and runoff into our water bodies. In addition, these can be utilised for passive treatment of industrial waters stored in ponds. To this end, the research focus is on harnessing renewable energy sources such as sunlight and visible light as well as low energy light emitting diodes (LEDs). The proposed research has five specific objectives (O), with O1&O2 focusing on the development of visible light active materials and their composites and evaluating their performance to disinfect as well as treat emerging contaminants in water. In O3, we intend to exploit natural iron chemistry and integrate with solar energy to develop a passive treatment technology. This will have immediate application in industrial wastewaters stored in ponds. The later objectives (O4&O5) will synthesize the research findings of O1-O3 and focus on developing and testing solar mediated engineered treatment units to achieve disinfection and treatment of emerging contaminants. Successful evaluation at this stage will lead to a suite of technologies that utilise renewable energy such as visible light/sunlight or low energy LEDs for tertiary water and wastewater treatment. The technologies developed through this program will be scalable and have application in remote, small rural communities as well as in larger municipalities. We believe that the technologies developed through this program have the potential to be game changing in water/wastewater industry.

该研究计划的重点是开发可扩展的节能水和废水处理技术，碳足迹小，可适用于加拿大和发展中国家的偏远地区。淡水供应的减少、人口的不断增加以及不可再生能源与气候变化之间的密切联系，突出表明需要节能技术。在不断发展的技术中，先进的氧化工艺（AOP）具有重要的前景。虽然成功应用的高级氧化工艺已被证明可以有效地降解许多污染物，但在目前的技术水平下，高级氧化工艺是相当耗能的。然而，如果我们能够利用太阳光/可见光来光催化处理污染物，并将其发展为一种可部署的技术，这种情况就可以改变。通过该计划开发的技术构成了智能水技术的基础，可用于小型和大型水和废水处理。它们可以用来处理饮用水和回收水再利用。它们将（a）提供消毒以及（B）处理通过处理过的废水和径流不断释放到我们水体中的新污染物（药品、个人护理产品、杀虫剂、家用化学品和其他）。此外，这些可用于储存在池塘中的工业沃茨的被动处理。为此，研究重点是利用可再生能源，如太阳光和可见光以及低能量发光二极管（LED）。拟议的研究有五个具体目标（O），其中O 1和O2专注于可见光活性材料及其复合材料的开发，并评估其消毒和处理水中新污染物的性能。在O3方面，我们打算利用天然铁化学，并结合太阳能开发被动处理技术。这将立即应用于储存在池塘中的工业废水。后期目标（O 4和O 5）将综合O 1-O3的研究成果，并专注于开发和测试太阳能介导的工程处理单元，以实现新出现的污染物的消毒和处理。在这个阶段的成功评估将导致一套技术，利用可再生能源，如可见光/阳光或低能量LED的三级水和废水处理。 通过该计划开发的技术将可扩展，并可应用于偏远的小型农村社区以及较大的城市。我们相信，通过该计划开发的技术有可能改变水/废水行业的游戏规则。