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

城市污水处理厂（WWTPs）在世界范围内正变得越来越先进。目前，污水处理厂不被视为废物处置设施。相反，它们可以与资源回收联系起来。然而，废水处理行业面临着许多挑战，包括能源成本上升、废水中存在难降解的微污染物、有限的资源、节约用水以及更严格的法规。通过开发一种结合同时吸附和氧化的催化氧化处理策略，提出的研究是朝着实现我们对处理过的城市污水资源回收和再利用的长期愿景迈出的一步。为了实现这一目标，已经建立了以下短期目标：(1)开发对选定污染物具有更大选择性亲和力的新材料，可以用作吸附剂、催化剂或支持材料；(2)研究了所选催化剂对过硫酸盐、臭氧和氧酮/臭氧高级氧化工艺（AOPs）性能和去除机理的影响；(3)从生物降解性、毒性降低和微污染物去除等方面评价催化氧化的性能；(4)评估吸附剂/催化剂的可重复使用性，研究其再生能力，最大限度地提高资源回收率。长期目标是：(1)产生符合更严格的安全排放和/或再利用标准的经处理的废水；(2)提高对废水管理的认识，将其作为阿尔伯塔省可持续发展的重要因素；(3)将取得的知识纳入污水处理厂的实际污水管理方案；(4)在城市污水高级处理领域培养下一代高技能人才，并提供最好的教育机会，以实现水再利用和资源回收的最终目标。本研究项目的新颖性和突破性创新潜力包括：(1)应用催化AOP去除加拿大未规范的城市污水中的微污染物；(2)深入研究催化AOPs的机理，目前还不清楚；（三）将废物（即污泥）用作填海用途；(4)对碳材料进行改性以进行选择性去除；(5)碳基材料资源回收的可行性研究。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，使其能够再利用和/或安全排放。

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.