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

城市污水处理厂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理设施。相反，它们可以与资源回收联系在一起。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，资源有限，节水，以及更严格的法规。这项拟议的研究是向前迈进一步，通过开发一种同时结合吸附和氧化的催化氧化处理策略，实现我们对经过处理的城市污水的资源回收和再利用的长期愿景。为了实现这一目标，已经制定了以下短期目标：(1)开发对可用作吸附剂、催化剂或载体材料的选定污染物具有更强选择性亲和力的新材料；(2)研究选定的催化剂对过硫酸盐、臭氧和氧酮/臭氧高级氧化工艺(AOPS)的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方面评价催化氧化的性能；以及(4)评估吸附剂/催化剂的可重复使用性能，考察其再生情况，并最大限度地提高资源回收。长期目标是：(1)生产符合更严格的安全排放和/或再利用标准的经过处理的废水；(2)提高废水管理知识，将其作为艾伯塔省可持续发展的关键要素；(3)将已获得的知识纳入污水处理厂的实际废水管理选择；以及(4)为实现水回用和资源回收的最终目标，培训在高级市政废水处理领域具有最好教育机会的下一代高技能人员。这项研究计划的创新性和突破性创新的潜力包括：(1)应用催化AOP去除加拿大未受监管的微污染物；(2)深入研究催化AOPS的机理，这些机理尚不清楚；(3)回收利用废物(即污泥)；(4)对碳材料进行选择性去除的改性；以及(5)从碳基材料中研究资源回收的可能性。拟议的研究可直接应用于现有的加拿大污水处理厂，以改进二级流出物的处理，使其能够重复使用和/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.