Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

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Dechlorination and Decomposition of Dichloroacetic Acid by Glow Discharge Plasma in Aqueous Solution

Authors
Panliang Liu, Songlin Zhang, Lei Wang, Tuo Xia, Huan Xu
Corresponding Author
Panliang Liu
Available Online April 2015.
DOI
10.2991/meic-15.2015.169How to use a DOI?
Keywords
Non-thermal Plasma; Dichloroacetic Acid;Dechlorination;Decomposition;Mechanism
Abstract

Dichloroacetic acid (DCAA) is one of the most common, stable and carcinogenic byproducts in water and wastewater treatment. In this study, dechlorination and decomposition of DCAA by glow discharge plasma (GDP) in a sodium sulfate solution were investigated. Intermediate products were identified and determined by ionic chromatography. Different experimental conditions are discussed for the influence of the removal efficiency of DCAA, such as different pH, hydroxyl radical scavenger. Increasing pH was favorable for both removal and dechlorination of DCAA. Addition of organic addictives to the solution decreased both the removal and dechlorination of DCAA. Monochloroacetic, acetic acid, formic acid and oxalic acid were the major products. Final products were inorganic carbon and chloride ion. The possible dechlorination mechanism is proposed based on the distribution of intermediate products. Both radical and thermal reactions were involved in the dechlorination and decomposition of DCAA. Hydroxyl radicals may be the most likely active species responsible for the dechlorination and decomposition.

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 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
Series
Advances in Engineering Research
Publication Date
April 2015
ISBN
978-94-62520-62-2
ISSN
2352-5401
DOI
10.2991/meic-15.2015.169How 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

risenwbib
TY  - CONF
AU  - Panliang Liu
AU  - Songlin Zhang
AU  - Lei Wang
AU  - Tuo Xia
AU  - Huan Xu
PY  - 2015/04
DA  - 2015/04
TI  - Dechlorination and Decomposition of Dichloroacetic Acid by Glow Discharge Plasma in Aqueous Solution
BT  - Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 742
EP  - 745
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-15.2015.169
DO  - 10.2991/meic-15.2015.169
ID  - Liu2015/04
ER  -