In-liquid arc plasma jet and its application to phenol degradation

Handle URI:
http://hdl.handle.net/10754/627117
Title:
In-liquid arc plasma jet and its application to phenol degradation
Authors:
Liu, Jing-Lin Lin ( 0000-0003-1370-9492 ) ; Park, Hyun-Woo ( 0000-0003-1159-8944 ) ; Hamdan, Ahmad ( 0000-0001-5591-2291 ) ; Cha, Min Suk ( 0000-0003-4059-3421 )
Abstract:
We present a new method for achieving chemical reactions induced by plasmas with liquids—an in-liquid arc plasma jet system—designed to have a few advantages over the existing methods. High-speed imaging and optical emission spectroscopy were adopted to highlight the physical aspects of the in-liquid arc plasma jet system, and the feasibility of the system was investigated in a wastewater treatment case with phenol as the model contaminant. We found that the specific energy input is a reasonable parameter by which to characterize the overall process. The phenol removal reaction could be modeled as a pseudo-first-order reaction, and the reaction constant became smaller as the phenol concentration increased. However, complete decomposition of the phenol into water and carbon dioxide required very high energy because the final intermediate, oxalic acid, is relatively stable. Detailed chemical and physical analyses, including byproducts, ions, solution acidity, and conductivity, were conducted to evaluate this new method for use in the appropriate applications.
KAUST Department:
Clean Combustion Research Center; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program
Citation:
Liu J-LL, Park H-W, Hamdan A, Cha MS (2018) In-liquid arc plasma jet and its application to phenol degradation. Journal of Physics D: Applied Physics. Available: http://dx.doi.org/10.1088/1361-6463/aaada2.
Publisher:
IOP Publishing
Journal:
Journal of Physics D: Applied Physics
Issue Date:
7-Feb-2018
DOI:
10.1088/1361-6463/aaada2
Type:
Article
ISSN:
0022-3727; 1361-6463
Sponsors:
The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).
Additional Links:
http://iopscience.iop.org/article/10.1088/1361-6463/aaada2
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorLiu, Jing-Lin Linen
dc.contributor.authorPark, Hyun-Wooen
dc.contributor.authorHamdan, Ahmaden
dc.contributor.authorCha, Min Suken
dc.date.accessioned2018-02-13T13:43:18Z-
dc.date.available2018-02-13T13:43:18Z-
dc.date.issued2018-02-07en
dc.identifier.citationLiu J-LL, Park H-W, Hamdan A, Cha MS (2018) In-liquid arc plasma jet and its application to phenol degradation. Journal of Physics D: Applied Physics. Available: http://dx.doi.org/10.1088/1361-6463/aaada2.en
dc.identifier.issn0022-3727en
dc.identifier.issn1361-6463en
dc.identifier.doi10.1088/1361-6463/aaada2en
dc.identifier.urihttp://hdl.handle.net/10754/627117-
dc.description.abstractWe present a new method for achieving chemical reactions induced by plasmas with liquids—an in-liquid arc plasma jet system—designed to have a few advantages over the existing methods. High-speed imaging and optical emission spectroscopy were adopted to highlight the physical aspects of the in-liquid arc plasma jet system, and the feasibility of the system was investigated in a wastewater treatment case with phenol as the model contaminant. We found that the specific energy input is a reasonable parameter by which to characterize the overall process. The phenol removal reaction could be modeled as a pseudo-first-order reaction, and the reaction constant became smaller as the phenol concentration increased. However, complete decomposition of the phenol into water and carbon dioxide required very high energy because the final intermediate, oxalic acid, is relatively stable. Detailed chemical and physical analyses, including byproducts, ions, solution acidity, and conductivity, were conducted to evaluate this new method for use in the appropriate applications.en
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).en
dc.publisherIOP Publishingen
dc.relation.urlhttp://iopscience.iop.org/article/10.1088/1361-6463/aaada2en
dc.rightsThis is an author-created, un-copyedited version of an article accepted for publication/published in Journal of Physics D: Applied Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://doi.org/10.1088/1361-6463/aaada2en
dc.subjectIn-liquid plasmaen
dc.subjectarc plasma jeten
dc.subjectphenolen
dc.subjectwater purificationen
dc.titleIn-liquid arc plasma jet and its application to phenol degradationen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.identifier.journalJournal of Physics D: Applied Physicsen
dc.eprint.versionPost-printen
dc.contributor.institutionLaboratory of Plasma Physical Chemistry, Dalian University of Technology, Dalian, 116024, CHINAen
dc.contributor.institutionLG PRI, Environment System Team, LG Electronics, Pyeongtaek-si, Gyeonggi-do, 150-721, Korea (the Republic of)en
kaust.authorHamdan, Ahmaden
kaust.authorCha, Min Suken
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