Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference

Study on the Electrochemical Oxidation Treatment of Coking Wastewater by DSA Anode

Authors
Qiyuan Gu, Jin Zheng
Corresponding Author
Qiyuan Gu
Available Online June 2015.
DOI
10.2991/ap3er-15.2015.71How to use a DOI?
Keywords
DSA; Coking wastewater; Electrochemical oxidation; Wastewater treatment .
Abstract

Commercial DSA anode was employed for electrochemical oxidation treatment of coking wastewater, and the effect of electrolytes, working potential, and ultraviolet irradiation were examined. An effective removal of chemical oxygen demand (COD), thiocyanate (SCN–), volatile phenol and total nitrogen (TN) was observed during electrochemical oxidation process. The presence of NaCl (0.01 mol/L) enhanced the TN removal significantly, and the removal of TN under 9 V working potential improved from 15.9% in the absence of NaCl to 56.4% in the presence, which can be ascribed to the indirect oxidation of hypochlorite. Both the working potential and ultraviolet irradiation were capable of enhancing the degradation efficiency. From the UV-Vis absorbance curves before and after the electrochemical oxidation, the pollutants in the coking wastewater were efficiently removed and this indicates that electrochemical oxidation is a practical approach for the coking wastewater treatment.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference
Series
Advances in Engineering Research
Publication Date
June 2015
ISBN
10.2991/ap3er-15.2015.71
ISSN
2352-5401
DOI
10.2991/ap3er-15.2015.71How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Qiyuan Gu
AU  - Jin Zheng
PY  - 2015/06
DA  - 2015/06
TI  - Study on the Electrochemical Oxidation Treatment of Coking Wastewater by DSA Anode
BT  - Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference
PB  - Atlantis Press
SP  - 301
EP  - 305
SN  - 2352-5401
UR  - https://doi.org/10.2991/ap3er-15.2015.71
DO  - 10.2991/ap3er-15.2015.71
ID  - Gu2015/06
ER  -