Lee, HC In, JH Hwang, KY Lee, CH 2024-01-21T06:44:46Z 2024-01-21T06:44:46Z 2021-09-02 2004-06 0888-5885 https://pubs.kist.re.kr/handle/201004/137478 Ethylenediaminetetraacetic acid (EDTA) was decomposed by supercritical water oxidation (SCWO) in a tubular plug-flow reactor. The effect of the oxidant amount on the decomposition rate and efficiency was more significant at lower temperature. Also, excess oxidant played a key role in decreasing the activation energy for EDTA decomposition as CODCr. The nitrogen from EDTA was found to transform into NO3--N by thermal decomposition, while a portion of the nitrogen of EDTA and NO3--N was transformed into NH4+-N and finally converted to N-2 gas in the SCWO process. The decomposition kinetics of EDTA as CODCr in the SCWO process was described by a global rate expression. English AMER CHEMICAL SOC Decomposition of ethylenediaminetetraacetic acid by supercritical water oxidation Article 10.1021/ie049952u 1 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.43, no.13, pp.3223 - 3227 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 43 13 3223 3227 N scie scopus 000222142000002 2-s2.0-2942676613 Engineering, Chemical Engineering Article EDTA KINETICS DTPA