MAJie-ting,LIUXin-ya,MALu-ming,et al.Operating Conditions of Ozonation Process Catalyzed by Iron-based Catalyst Packing[J].China Water & Wastewater,2022,38(5):32-39.
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Operating Conditions of Ozonation Process Catalyzed by Iron-based Catalyst Packing

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第38卷 Number: 第5期 Page: 32-39 Column: Date of publication: 2022-03-01
Author(s):
MA　Jie-ting1;  LIU　Xin-ya2;  MA　Lu-ming3;  LIU Hai-yan4
（1. Shanghai Municipal Engineering Design Institute Co. Ltd.， Shanghai 200092， China； 2. Nanjing Mingning Water Treatment Technology Co. Ltd.， Nanjing 211102， China； 3. School of Environmental Science and Engineering， Tongji University， Shanghai 200092， China； 4. Tongsheng Waste Water Treatment Co. Ltd.， Nantong 226017， China）
Keywords:
ozonation;  iron-based catalyst;  advanced wastewater treatment
Abstract:
Performance of iron?based catalyst packing with “micro?channel” structure for advanced oxidation of wastewater was investigated, and the effects of gas?liquid reverse flow and bubble size of gas distributor on ozone decomposition rate were quantitatively analyzed. The resistance coefficient and flooding point of the iron?based catalyst packing were calculated through pilot tests. Statistical analysis and regression of 70 “individual cases” was completed with the aid of professional software in the experiment, and the functional relationship between operational parameters (ozone equivalent, hydraulic retention time and influent quality) and COD removal efficiency was obtained. The results proved that the effluent quality of the process could stably meet the class Ⅳ criteria specified in Environmental Quality Standards for Surface Water (GB 3838-2002).
Last Update: 2022-03-01