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题名: UV/H_2 O_2技术对上海青草沙水源水砂滤后溴酸根和三卤甲烷的生成控制
作者: 李伟伟; 许可; 董慧峪; 陈卫平; 强志民
刊名: 环境化学
出版日期: 2016
卷号: 35, 期号:4, 页码:615-622
关键词: 溴离子 ; 溴酸根 ; 三卤甲烷 ; 饮用水 ; 高级氧化
其他题名: Control of bromate and trihalomethanes by UV/H_2O_2 in the sand-filtered water from Shanghai Qingcaosha reservoir
中文摘要: 针对含溴离子(Br~-)的上海某水厂滤后水的高级氧化处理,考察了紫外/过氧化氢(UV/H_2O_2)技术对UV_(254)和总有机碳(TOC)的削减效率、控制消毒副产物溴酸根(BrO_3~-)和三卤甲烷(THMs)的生成情况,同时研究了水中溴离子(Br~-)浓度的改变对UV/H_2O_2处理效果的影响.结果表明,UV/H_2O_2处理工艺不产生BrO_3~-; 500 mJ·cm~(- 2)的UV剂量和5 mg·L~(- 1)H_2O_2投加量下,出水UV_(254)和TOC分别降低了35%和21%; 后续氯消毒过程中的THMs生成势随H_2O_2投加量的增加显著降低, 500 mJ·cm~(- 2)的UV剂量下,H_2O_2投加量为5 mg·L~(- 1)和10 mg·L~(- 1)时,THMs生成势的削减率分别为49.4%和79.9%;水中Br~- 浓度的改变不影响UV/H_2O_2工艺的运行效果;相比UV,UV/H_2O_2还可使9种农药的降解率提高50%-85%.因此,UV/H_2O_2在含Br~-水源水深度处理方面有着较好的应用前景.
部门归属: 中国科学院饮用水科学与技术重点实验室
英文摘要: For advanced oxidation of sand filtered water from a water treatment plant in Shanghai, UV/H_2O_2 was applied to decrease UV_(254)and Total Organic Carbon (TOC),and to control the formation of disinfection byproducts-bromate (BrO_3~-)and trihalomethanes (THMs).The influence of bromide ion (Br~-)concentration on UV/H_2O_2 treatment was also examined.The results showed that no BrO_3~- was found after UV/H_2O_2 oxidation.UV_(254)and TOC were decreased by 35% and 21%,respectively,with 500 mJ·cm~(- 2)UV dose and 5 mg·L~(- 1)H_2O_2.THMs were decreased by 49.4% and 79.9% in subsequent chlorination process,with H_2O_2 dose being 5 and 10 mg·L~(- 1)respectively.Br~- concentrations had no effect on UV/H_2O_2 treatment.The degradation rates of nine pesticides were increased by 50%-85% in UV/H_2O_2 than that in UV.Thus,UV/H_2O_2 is feasible as an advanced treatment technology for water containing bromide ions.
收录类别: CSCD
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/36707
Appears in Collections:中国科学院饮用水科学与技术重点实验室_期刊论文

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Recommended Citation:
李伟伟,许可,董慧峪,等. UV/H_2 O_2技术对上海青草沙水源水砂滤后溴酸根和三卤甲烷的生成控制[J]. 环境化学,2016,35(4):615-622.
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文件名: UV_H_2O_2技术对上海青草_省略_砂滤后溴酸根和三卤甲烷的生成控制_李伟伟.pdf
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