Application of Catalytic Oxidation for Simultaneous Adsorption and Oxidation for Municipal Wastewater Reuse and Resource Recovery

催化氧化同步吸附氧化在城市污水回用及资源化中的应用

• 批准号: RGPIN-2018-05882
• 负责人: GamalElDin, Mohamed
• 金额: $ 5.32万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=691670
• 关键词: Application; Catalytic; Oxidation; Simultaneous; Adsorption

Municipal wastewater treatment plants (WWTPs) are becoming more advanced worldwide. Currently, WWTPs are not considered waste disposal facilities. On the contrary, they can be associated with resource recovery. However, the wastewater treatment industry faces many challenges including increasing energy costs, the presence of refractory micropollutants in the wastewater, finite resources, water conservation, and more stringent regulations. The proposed research is a step forward to achieve our long-term vision of resource recovery and reuse of treated municipal effluents by developing a catalytic oxidation treatment strategy that combines simultaneous adsorption and oxidation. To achieve this goal, the following short-term objectives have been established: (1) develop new materials with greater selective affinity towards selected pollutants that can be used as adsorbents, catalysts, or support materials; (2) investigate the impact of selected catalysts on the performance and on the removal mechanisms of persulfate-, ozone-, and oxone/ozone-based advanced oxidation processes (AOPs); (3) evaluate the performance of catalytic oxidation in terms of biodegradability, toxicity reduction, and micropollutant removal; and (4) assess the reusability of the adsorbents/catalysts, investigate their regeneration, and maximize the resource recovery. The long-term objectives are: (1) produce treated wastewater that will meet more stringent standards for safe release and/or reuse; (2) improve the knowledge of wastewater management as a vital element for the sustainable development of Alberta; (3) integrate the achieved knowledge into actual wastewater management options by the WWTPs; and (4) train the next generation of highly skilled personnel with the finest educational opportunities in the area of advanced municipal wastewater treatment for the ultimate goals of water reuse and resource recovery. The novelty and potential for breakthrough innovation of this research program include: (1) application of catalytic AOP in municipal wastewater to remove micropollutants not regulated in Canada; (2) in-depth examination of the mechanisms of catalytic AOPs, which are not well understood; (3) utilization of waste material (i.e., sludge) for reclamation purposes; (4) modification of carbon materials for selective removal; and (5) examination of possible resource recovery from carbon-based materials. The proposed research can be directly applied to existing Canadian WWTPs to improve the treatment of secondary effluents, allowing their reuse and/or safe discharge.

城市污水处理厂（WWTPs）在世界范围内变得越来越先进。目前，污水处理厂不被视为废物处理设施。相反，它们可能与资源回收有关。然而，废水处理行业面临着许多挑战，包括能源成本增加、废水中存在难降解微污染物、资源有限、节水和更严格的法规。拟议的研究是向前迈出的一步，以实现我们的资源回收和再利用处理城市污水的长期愿景，通过开发一种催化氧化处理策略，结合同时吸附和氧化。为了实现这一目标，已经确定了以下短期目标：（1）开发对所选污染物具有更大选择性亲和力的新材料，可用作吸附剂、催化剂或载体材料;（2）研究所选催化剂对基于过硫酸盐、臭氧和过硫酸氢钾/臭氧的高级氧化工艺（AOPs）的性能和去除机理的影响;（3）评价催化氧化在生物降解性、毒性降低和微污染物去除方面的性能;（4）评价吸附剂/催化剂的可重复使用性，研究它们的再生，并最大限度地回收资源。长期目标是：（1）生产符合更严格的安全排放和/或再利用标准的处理后废水;（2）提高废水管理知识，将其作为阿尔伯塔可持续发展的一个重要因素;（3）将所获得的知识纳入污水处理厂的实际废水管理方案;以及（4）培养下一代高技能人才，在先进的城市污水处理领域提供最好的教育机会，以实现水的再利用和资源化的最终目标。复苏该研究项目的新奇和突破性创新潜力包括：（1）催化AOP在城市污水中的应用，以去除加拿大不受管制的微污染物;（2）深入研究催化AOP的机制，这还不是很清楚;（3）废物利用（即，污泥）用于回收目的;（4）碳材料的改性以进行选择性去除;以及（5）从碳基材料中回收资源的可能性的研究。拟议的研究可以直接应用于现有的加拿大污水处理厂，以改善二次污水的处理，使其重复使用和/或安全排放。