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: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=713934
• 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.

全球城市污水处理厂 (WWTP) 正变得越来越先进。目前，污水处理厂不被视为废物处理设施。相反，它们可以与资源回收相关联。然而，废水处理行业面临着许多挑战，包括不断增加的能源成本、废水中存在难降解微污染物、有限的资源、节约用水以及更严格的法规。拟议的研究是通过开发结合同时吸附和氧化的催化氧化处理策略，实现我们对处理后的城市污水进行资源回收和再利用的长期愿景迈出的一步。为实现这一目标，制定了以下短期目标：（1）开发对选定污染物具有更大选择性亲和力的新材料，可用作吸附剂、催化剂或支撑材料； (2) 研究所选催化剂对过硫酸盐、臭氧和基于臭氧/臭氧的高级氧化工艺（AOP）的性能和去除机制的影响； (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)评估吸附剂/催化剂的可重复使用性，研究其再生，并最大限度地回收资源。长期目标是：(1) 产生经过处理的废水，以满足更严格的安全排放和/或再利用标准； (2) 提高废水管理知识，将其作为艾伯塔省可持续发展的重要组成部分； (3) 将所获得的知识整合到污水处理厂的实际废水管理方案中； (4) 在先进的城市污水处理领域提供最好的教育机会，培养下一代高技能人才，以实现水再利用和资源回收的最终目标。该研究项目的新颖性和突破性创新潜力包括：（1）在城市废水中应用催化AOP去除加拿大未管制的微污染物； （2）深入研究尚不十分清楚的催化AOPs机制； （三）废物（即污泥）的再生利用； (4)对碳材料进行改性以选择性去除； (5) 审查从碳基材料中回收可能的资源。拟议的研究可直接应用于现有的加拿大污水处理厂，以改善二级污水的处理，使其再利用和/或安全排放。