Development of novel heterogeneous catalysts and processes for environmental applications

开发用于环境应用的新型多相催化剂和工艺

• 批准号: 357277-2012
• 负责人: Soltan, Jafar
• 金额: $ 1.75万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=572768
• 关键词: Development; novel; heterogeneous; catalysts; processes

The presence of emerging pollutants in bodies of natural water is becoming a potential health concern for both humans and aquatic organisms. Chemicals (e.g., bisphenol A, PBA), pharmaceuticals (e.g., antidepressants), and pesticides (e.g., atrazine) have been detected in trace amounts in both surface and ground waters. Catalytic reaction with ozone (O3) is a potential way to degrade these emerging contaminants. The proposed research program is focused on developing novel solid catalysts to enhance the reaction of ozone with emerging pollutants in water. Catalysts based on size-controlled clusters of active metals (Cu, Ru, Pt, Co, Fe, Au) on effective supports (A2O3, granulated activated carbon, CeO2, TiO2), carbon nanotubes, and hydrophobic alumina will be developed. Catalysts will be screened based on their effectiveness in degrading and mineralizing selected emerging pollutants in water. The effect of operating parameters on reaction kinetics will be evaluated for reactor scale up and feasibility studies. The effect of catalyst metal particle size on structural sensitivity of the reactions of degradation and mineralization and the significance of catalyst surface reactions versus bulk liquid reactions will be studied. This research program will improve our understating of the significance and effect of catalyst surface reactions on the process and will contribute to the development of novel and effective methods for water treatment to address the problem of presence of emerging pollutants in water. Results from the work will be patented and/or published. This work will benefit the public and the Canadian industries that seek to maintain their scientific and technological leadership in the fields of ozone processes, advanced oxidation technologies, and environmental engineering. The program will contribute to training of highly qualified personnel who will join the workforce in process and chemical industries, environmental engineering firms, or water and wastewater treatment industries.

天然水体中新出现的污染物正在成为人类和水生生物的潜在健康问题。化学品（例如，双酚A，PBA），药物（例如，抗抑郁药），和杀虫剂（例如，阿特拉津）在地表水和地下沃茨中都检测到了痕量。与臭氧（O3）的催化反应是降解这些新兴污染物的潜在方法。拟议的研究计划的重点是开发新型固体催化剂，以增强臭氧与水中新兴污染物的反应。将开发基于活性金属（Cu、Ru、Pt、Co、Fe、Au）在有效载体（A2 O3、粒状活性炭、CeO 2、TiO 2）、碳纳米管和疏水氧化铝上的尺寸受控簇的催化剂。将根据催化剂在降解和矿化水中某些新出现的污染物方面的有效性来筛选催化剂。将评价操作参数对反应动力学的影响，以进行反应器放大和可行性研究。将研究催化剂金属粒度对降解和矿化反应的结构敏感性的影响以及催化剂表面反应与本体液体反应的意义。 该研究计划将提高我们对催化剂表面反应对过程的意义和影响的理解，并将有助于开发新颖有效的水处理方法，以解决水中存在的新兴污染物问题。工作成果将获得专利和/或出版。这项工作将使公众和加拿大工业界受益，因为它们希望在臭氧过程、高级氧化技术和环境工程领域保持其科学和技术领先地位。该计划将有助于培养高素质的人才，他们将加入加工和化学工业，环境工程公司或水和废水处理行业的劳动力。