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《Environmental Science & Technology》 2012-12
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Degradation Process of 2,4-Dinitrophenol in Wastewater Using Modified Graphite Electrode

ZHAO De-long,WANG Zhong-qi,XU Xu-dong, ZHAO Shu-ping,ZHOU Wei-lan,YANG Peng(Key Lab of Automatic Control Technology in Environmental Engineering,Southwest University of Science and Technology,Mianyang 621010,China)  
An electrolytic experimental device with self-made graphite/PTFE gas diffusion electrodes as a cathode,as well as iron as an anode,was set up,thus an electro-Fenton reaction system to degrade 2,4-dinitrophenol(DNP)was constituted.The experimental study focused on upgrade of DNP removing rate by using graphite/PTFE cathode,which had two types,i.e.D(N/P/Cu),D(N/P).It was found that D(N/P/Cu),mixed with copper,not only increased electrolytic efficiency but greatly cut down consumption of iron anode,thus reducing iron-sludge production during the electrolysis.In addition,FTIR was used to analyze the decomposed DNP and residual DNP in the sediment,and observations were taken using SEM to study the surface of the modified graphite electrode.
【Fund】: 四川省科技厅重点项目(09zz033)
【CateGory Index】: X703
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