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Decomposition of Ethylenediaminetetraacetic Acid Using He‐Ar‐O 2 Dielectric Barrier Discharge
Author(s) -
Kim YoonKee,
Kim Seon Ae,
Lee Soo Bin,
Kim Jin Kil,
Kang DukWon
Publication year - 2005
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200400053
Subject(s) - dielectric barrier discharge , ethylenediaminetetraacetic acid , decomposition , degradation (telecommunications) , atmospheric pressure , aqueous solution , chemistry , analytical chemistry (journal) , nonthermal plasma , plasma , dielectric , materials science , electrode , inorganic chemistry , chromatography , chelation , organic chemistry , physics , optoelectronics , quantum mechanics , geology , telecommunications , computer science , oceanography
Abstract Summary: DBD generated by mid‐frequency AC (30 kHz) at atmospheric pressure was used for the degradation of EDTA in aqueous solution. The concentration of EDTA was measured by HPLC and TOC analysis. More than 90% of EDTA (initial concentration of 0.2 wt.‐%) was decomposed by DBD degradation, and the TOC content was reduced to below 60% of the initial value within one hour. The reaction was faster at high plasma generation voltages. At an applied voltage of 14 kV, 50% of EDTA was degraded by DBD degradation in only 10 min.