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浙江大学学报(工学版)
浙江大学学报(工学版)
土木工程     
给水管网中双酚A降解影响因素
王子龙,李聪,任庆亮, 徐卿,刘嘉涵,毛欣炜
浙江大学 土木工程学系,浙江 杭州 310058
Effects of different factors on degradation of BPA in water distribution system
WANG Zi-long, LI Cong, REN Qing-liang, XU-Qing, LIU Jia-han,MAO Xin-wei
Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China
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摘要：

利用大型给水管网实验平台,研究双酚A（BPA）在不同管材、水力学条件及水质条件下的降解规律.将管网实验结果与BPA和次氯酸钠在烧杯中的反应降解规律进行对比.BPA利用HPLC荧光检测法进行检测,激发波长为225 nm,发射波长为310 nm,结果表明,BPA降解除与次氯酸钠主反应有关外,还受到管壁和主体水中化学物质的影响.余氯质量浓度、pH值、溴离子质量浓度、流速和温度的增加有利于BPA的降解.不同管材对BPA的降解存在影响,BPA的降解速率在不锈钢管中最大,PE管次之,内衬水泥球磨铸铁管中最小.研究结果显示,管壁对BPA降解的贡献率约为10%,主体水中氯化产物的贡献率约为30%(其中最终氯化产物的贡献率为20%,剩余10%由氧自由基等贡献 ).
Abstract:

Degradation of BPA under different conditions including different pipes materials, hydraulic conditions and water quality was analyzed with the pilot-scale water distribution systems (WDS). BPA was detected by HPLC fluorescence. Excitation wavelength is 225 nm, and emission wavelength is 310 nm. Experimental results show that the degradation of BPA in WDS is effected by not only NaClO but also wall of pipes and chemical compounds in bulk water. The increase of mass concentration of free chlorine, pH values, mass concentration of bromide ions, flow velocity and temperature is beneficial to degradation of BPA. Pipe material is another important factor for the degradation of BPA. The degradation rates of BPA follow the order: stainless steel pipe > polyethelene pipe (PE) > ductile iron pipe. Experimental results show that the contribution rates of wall of pipes and chemical compounds of bulk water to the degradation of BPA are 10% and 30%, respectively (including the 10% of intermediate products and the 20% of final chlorinated compounds)．
出版日期: 2014-08-04
:  X 5  
基金资助:

长江水环境教育部重点实验室开放课题资助项目（YRWEF201104）；国家自然科学基金资助项目（51208455）；浙江省自然科学基金资助项目（LY12E08017）
通讯作者: 李聪，女， 副教授     E-mail: congil@zju.edu.cn
作者简介: 王子龙（1988-），男，硕士生，从事水污染控制的研究.E-mail:wfengluanwu@126.com
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王子龙,李聪,任庆亮, 徐卿,刘嘉涵,毛欣炜. 给水管网中双酚A降解影响因素[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2014.07.006.

WANG Zi-long, LI Cong, REN Qing-liang, XU-Qing, LIU Jia-han,MAO Xin-wei. Effects of different factors on degradation of BPA in water distribution system. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2014.07.006.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2014.07.006    或    http://www.zjujournals.com/eng/CN/Y2014/V48/I7/1180

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