文献类型：期刊文献

英文题名：Enhancing Ozone Oxidation of Reverse Osmosis Concentrate Using Activated Carbon-Supported Cu-Co-Mn Catalysts

作者：Chen, Xiurong[1,2];Chen, Zhichong[1];Sun, Xiaoli[1];Tian, Jinyi[1];Wang, Yuan[1];Pan, Tao[1];Hu, Xueyang[1];Zhang, Xinyu[1];Gu, Hao[1]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, Natl Engn Res Ctr Ind Wastewater Detoxicat & Reso, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China

年份：2023

卷号：153

期号：5

起止页码：1359

外文期刊名：CATALYSIS LETTERS

收录：;EI(收录号：20222512254226);WOS:【SCI-EXPANDED(收录号:WOS:000812615100002)】；

基金：This research was supported by the National Key Research and Development Program of China (2019YFC1806104).

语种：英文

外文关键词：Coal gasification; Reverse osmosis concentrate; Activated carbon; Cu-Co-Mn; Catalytic ozonation

摘要：The refractory organic matters in the reverse osmosis concentrate of coal gasification wastewater were reduced via catalytic ozonation. Activated carbon-supported Cu-Co-Mn catalysts were prepared and the removal efficiency improved 9.6% than Cu-Mn catalysts with the second catalytic activity. The parameters of catalyst preparation were optimized by univariate analysis and response surface methodology. At the loading rate of 6.46%, calcination temperature of 625 degrees C, and calcination time of 5.0 h, the removal efficiency of chemical oxygen demand (COD) was highest at 80.67% under the pH of 9, ozone concentration of 1 g/L, and catalyst dosing rate of 1.10 g/L. It is confirmed that metal oxides were homogeneously distributed in the form of CuO, Co3O4, MnO2, and Mn2O3. Enhancement of specific surface area increased the number of activity sites and oxygen vacancies accelerated the formation of center dot OH. Hence, the activity of ozonation for refractory organic matters was improved. [GRAPHICS] .