Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Zhejiang University(Engineering Science)》 2014-07
Add to Favorite Get Latest Update

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;  
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 225nm,and emission wavelength is 310nm.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 pipepolyethelene 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).
【Fund】: 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)
【CateGory Index】: TU991.2
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved