TY - JOUR
T1 - Spectroscopic studies on the oxidative decomposition of Malachite Green using ozone
AU - Baek, Mi Hwa
AU - Ijagbemi, Christianah Olakitan
AU - Kim, Dong Su
N1 - Funding Information:
This work was supported by the National Research Foundation (NRF) grant funded by the Korean government (No. 2009–0093–461).
PY - 2010/4
Y1 - 2010/4
N2 - Spectroscopic studies on the oxidative decomposition of Malachite Green (MG) using ozone were investigated. Parameters such as color removal, initial dye concentration, COD reduction, reaction temperature and pH were studied to determine optimum conditions for complete MG decomposition. Complete removal of MG color was achieved within 10 min of reaction with ozone. The ozone oxidation reaction time increased as concentration of MG increases, inferring, there would be increase in MG removal as concentration decreases. COD reduction was observed as reaction time increases and the rate of reaction monotonically increased as temperature increases. From the spectroscopic analysis of the intermediates and the by-products of MG reaction with ozone, a tentative mechanistic approach of MG decomposition was postulated. It was also observed that after five minutes of ozone oxidation, color removal rate in the wastewater containing Malachite Green obtained from a small scale local dyeing industry reached almost 90%. Copyright Copy; Taylor & Francis Group, LLC.
AB - Spectroscopic studies on the oxidative decomposition of Malachite Green (MG) using ozone were investigated. Parameters such as color removal, initial dye concentration, COD reduction, reaction temperature and pH were studied to determine optimum conditions for complete MG decomposition. Complete removal of MG color was achieved within 10 min of reaction with ozone. The ozone oxidation reaction time increased as concentration of MG increases, inferring, there would be increase in MG removal as concentration decreases. COD reduction was observed as reaction time increases and the rate of reaction monotonically increased as temperature increases. From the spectroscopic analysis of the intermediates and the by-products of MG reaction with ozone, a tentative mechanistic approach of MG decomposition was postulated. It was also observed that after five minutes of ozone oxidation, color removal rate in the wastewater containing Malachite Green obtained from a small scale local dyeing industry reached almost 90%. Copyright Copy; Taylor & Francis Group, LLC.
KW - Decomposition characteristics
KW - Malachite Green
KW - Ozone oxidation
KW - Spectroscopic analysis
UR - http://www.scopus.com/inward/record.url?scp=77951235511&partnerID=8YFLogxK
U2 - 10.1080/10934521003595779
DO - 10.1080/10934521003595779
M3 - Article
C2 - 20390910
AN - SCOPUS:77951235511
VL - 45
SP - 630
EP - 636
JO - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
SN - 1093-4529
IS - 5
ER -