Analysis of electrochemical degradation of coking wastewater using multiwall carbon nanotubes modified electrode

Author

Shu-Jing Sun ; Yan Wang ; Hong Wang ; Gui-Fu Ding

Author_Institution

Key Lab. for Thin Film & Micro fabrication of Minist. of Educ., Shanghai Jiaotong Univ., Shanghai, China

fYear

2010

fDate

23-25 Nov. 2010

Firstpage

447

Lastpage

449

Abstract

A modified electrode coating with admixture of multi-walled carbon nanotubes and PTFE was used to treat the coking wastewater after biological purification. UV-VIS, GC/MS and COD measurement were used to observe the change of organic compositions in wastewater. The degrading efficiency of the prepared electrode was compared with that of the IrSnSb/Ti electrode. The results showed that after electrochemical degradation by MWNT-ME for 2 hours, the number of organic pollutants in coking wastewater reduced from 107 to 49, and COD was reduced by 51%. Compared with IrSnSb/Ti electrode, MWCNT-ME showed better electrochemical reactivity, electrochemical oxidation is the major fact of the degradation of organic pollutants during the electrolyzing of coking wastewater.

Keywords

biotechnology; carbon nanotubes; chromatography; coke; effluents; electrochemical electrodes; electrochemistry; environmental degradation; oxidation; purification; wastewater treatment; COD measurement; GCMS; PTFE; UV-VIS; admixtures; biological purification; coking wastewater treatment; electrochemical degradation; electrochemical oxidation; electrochemical reactivity; electrolyzing; modified electrode coatings; multiwall carbon nanotubes; organic pollutants; coking wastewater; modified electrode; multiwall carbon nanotube; organic pollutants;

fLanguage

English

Publisher

iet

Conference_Titel

Advanced Technology of Design and Manufacture (ATDM 2010), International Conference on

Conference_Location

Beijing

Type

conf

DOI

10.1049/cp.2010.1342

Filename

6139062