naa a22 4500 510749054 CHVBK 20180411083057.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11270-012-1376-1 doi (NATIONALLICENCE)springer-10.1007/s11270-012-1376-1 UV/Methyl Ethyl Ketone Peroxide Mediated Chlorophenol Congener Degradation in Basic Media [Elektronische Daten] [Swati Sharma, Mausumi Mukhopadhyay, Zagabathuni Murthy] The ubiquitous presence of chlorophenols (CPs) continues to be a cause of concern, owing to their recalcitrant nature. In this context, the present work investigated the degradation of model compounds, 4-chlorophenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol, by an organic oxidant, methyl ethyl ketone peroxide (MEKP) coupled with ultraviolet irradiation in basic media. Chemical analysis was followed by high-performance liquid chromatography and gas chromatography-mass spectrometry. Despite exhibiting varied patterns of decline, chemical oxygen demand was eventually noted to decrease to the extent of up to 70%. Simultaneous increase/decrease in the release of chloride ions and decrease in pH indicated that parallel reactions were occurring, which led to the formation of acidic reaction products. First-order dynamics was approximated for all CP congener degradation. The degraded compounds showed absolutely no presence of chlorine atoms, which was a noteworthy feature testifying to the fact that MEKP action was capable of detoxification of CP congeners. Springer Science+Business Media Dordrecht, 2012 Organic oxidant nationallicence Methyl ethyl ketone peroxide (MEKP) nationallicence Chlorophenol nationallicence Degradation nationallicence Kinetics nationallicence AOPs : Advanced oxidation processes nationallicence CPs : Chlorophenols nationallicence COD : Chemical oxygen demand nationallicence 4-CP : 4-Chlorophenol nationallicence 2,4-DCP : 2,4-Dichlorophenol nationallicence 2,4,6-TCP : 2,4,6-Trichlorophenol nationallicence PCP : Pentachlorophenol nationallicence MEKP : Methyl ethyl ketone peroxide nationallicence Sharma Swati Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, 395007, Surat, Gujarat, India aut Mukhopadhyay Mausumi Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, 395007, Surat, Gujarat, India aut Murthy Zagabathuni Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, 395007, Surat, Gujarat, India aut Water, Air, & Soil Pollution Springer Netherlands 224/1(2013-01-01), 1-9 0049-6979 224:1<1 2013 224 11270 https://doi.org/10.1007/s11270-012-1376-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-012-1376-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sharma Swati Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, 395007, Surat, Gujarat, India aut NATIONALLICENCE 700 1- Mukhopadhyay Mausumi Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, 395007, Surat, Gujarat, India aut NATIONALLICENCE 700 1- Murthy Zagabathuni Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, 395007, Surat, Gujarat, India aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/1(2013-01-01), 1-9 0049-6979 224:1<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer