Study on Pilot-scale Experiment of Electro-catalytic Oxidation in the Deep Treatment of Coking Wastewater

DOI

10.2991/edep-18.2018.56How to use a DOI?

Keywords

Electro-catalytic oxidation, Coking wastewater, COD, Operating cost, Deep treatment.

Abstract

To investigate the reduction of the COD of coking wastewater by electro-catalytic oxidation, the electro-catalytic oxidation pilot-scale experiment was carried out using the coking wastewater treated by A2/O and the coking wastewater treated by A2/O and fenton oxidation. And the modified electrode material (Ti/PbO2) plate was used as anode and 316L stainless steel plate was used as cathode. The effect of electro-catalytic oxidation on the COD removal rate of the two coking wastewater was studied. The experimental results showed that the COD of the coking wastewater treated by A2/O was reduced from 300 mg/L to 165 mg/L and the removal rate reached 45% in the electro-catalytic oxidation unit, and the operating cost was less than 3 yuan/m3. In addition, the COD of the coking wastewater treated by A2/O and fenton was reduced from 130 mg/L to 30 mg/L and the removal rate reached 76.5% in the electro-catalytic oxidation unit oxidation, and the operating cost was less than 6.2 yuan/m3. Furthermore, the COD of the wastewater treated by fenton oxidation and electro-catalytic oxidation was less than 40 mg/L, which suggested that the electro-catalytic oxidation was a reliable, steady and economical method for the deep treatment of coking wastewater.

Copyright

© 2018, 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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TY  - CONF
AU  - Xiang-Ji WANG
AU  - Jun-Bo ZHOU
AU  - Ai-Jun ZHANG
AU  - Chao WANG
AU  - Dong XIAO
AU  - Zhi-Na JIN
AU  - Yuan MIAO
AU  - Tong-Tong ZHI
PY  - 2018/10
DA  - 2018/10
TI  - Study on Pilot-scale Experiment of Electro-catalytic Oxidation in the Deep Treatment of Coking Wastewater
BT  - Proceedings of the 2018 International Conference on Energy Development and Environmental Protection (EDEP 2018)
PB  - Atlantis Press
SP  - 357
EP  - 362
SN  - 2352-5401
UR  - https://doi.org/10.2991/edep-18.2018.56
DO  - 10.2991/edep-18.2018.56
ID  - WANG2018/10
ER  -