Online published: 2010-10-01
Mn2+ - MnO2 catalysts are used for catalytic ozonation of oxytetracycli ne wastewater. The influential factors, such as different pH values, the optimum ratio and the amount of catalyst, the flow of ozone,and the radical depressant have been discussed. The results show that, After using Mn2+ - MnO2 catalysts,t he removal rate of CODCr<\sub> could reach 70.8% from 35.3% by using ozone only. At th e same time, it is indicated that HO· is the main factor in catalytic ozonation.
Key words： catalytic oxidation; ozone; oxytetracycline wastewater
Wang Chunping, Liu Qingfu, Ma Zichuan . Degradation of oxytetracycline wastewater by catalytic ozonation[J]. Industrial Water Treatment, 2005 , 25(4) : 56 -58 . DOI: 10.11894/1005-829x.2005.25(4).55
[1] Jun Ma. Degradation of atrazine by manganese-catalysed ozonation: influence of humic substances[J].Water Research,1999,(03):785-793.
[2] Gracia R. Mn Ⅱ -catalysed ozonation of raw EBRO river water and its ozonation by products[J].Water Research,1998,(01):57-62.doi:10.1016/S0043-1354(97)00188-7.
[3] 国家环保局. 空气与废气监测分析方法[M].北京:中国环境科学出版社,1995.75,79.
[4] Andreozzi R. The ozonation pyruvic acid in aqueous solutions by suspended and dissolved manganese[J].Water Research,1998,(05):1492-1496.
[5] 李来胜,祝万鹏,李中和. 催化臭氧化--一种有前景的的水处理高级氧化技术[J].给水排水,2001,(06):26-29.doi:10.3969/j.issn.1002-8471.2001.06.008.
[6] 郑雪松,朱世云,李道棠. 臭氧氧化去除吐氏酸溶液COD的动力学研究[J].上海环境科学,2001,(07):326-328.
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