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Addition of hydrogen peroxide for the simultaneous control of bromate and odor during advanced drinking water treatment using ozone

查看全文 作　　者：Yongjing [1]Wang;Jianwei [1]Yu;Dong [2]Zhang;Min [1]Yang 高影响力作者 机构地区：[1]State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences;[2]Shanghai National Engineering Research Center of Urban Water Resources Co., Ltd.高影响力机构 出　　处：《Journal of Environmental Sciences》索引2014年第26卷第3期,共5页高影响力期刊 基　　金：supported by the National Natural Science Foundation of China(No.50938007);the Funds for Major Science and Technology Program for Water Pollution Control and Treatment(No.2012ZX07403-002-02);the Shanghai Committee of Science and Technology Project(No.11XD1420500) 摘　　要：Complete removal of the characteristic septic/swampy odor from Huangpu River source water could only be achieved under an ozone dose as high as 4.0 mg/L in an ozone-biological activated carbon(O3-BAC) process, which would lead to the production of high concentrations of carcinogenic bromate due to the high bromide content. This study investigated the possibility of simultaneous control of bromate and the septic/swampy odor by adding H2O2 prior to the O3-BAC process for the treatment of Huangpu River water. H2O2 addition could reduce the bromate concentration effectively at an H2O2/O3(g/g) ratio of 0.5 or higher. At the same time, the septic/swampy odor removal was enhanced by the addition of H2O2, although optimization of the H2O2/O3 ratio was required for each ozone dose. At an ozone dose of 2.0 mg/L, the odor was removed completely at an H2O2/O3 ratio of 0.5. The results indicated that H2O2 application at a suitable dose could enhance the removal of the septic/swampy odor while suppressing the formation of bromate during ozonation of Huangpu River source water. 关 键 词：臭氧生物活性炭 过氧化氢 饮用水处理 控制过程 溴酸盐 气味 黄浦江原水 活性炭工艺
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