caa a22 4500 60616894X CHVBK 20210128100709.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10098-014-0777-9 doi (NATIONALLICENCE)springer-10.1007/s10098-014-0777-9 Catalytic wet oxidation of phenol under mild operating conditions: development of reaction pathway and sludge characterization [Elektronische Daten] [Kanhaiya Lal, Anurag Garg] Several process industries discharge wastewater with enormous amount of toxic phenolic compounds. Wet oxidation (WO) is considered among the potential cleaner treatment methods for such waste streams. The present study demonstrates the effectiveness of two homogeneous copper salts (nitrate and sulfate) as catalysts during batch WO process conducted under mild temperature and pressures (i.e., 120°C and oxygen pressure=0.5MPa). The catalytic oxidation showed around 90% reduction of phenol, chemical oxygen demand and total organic carbon from the wastewater within 2h. The oxidation reaction pathway at mild conditions is also proposed based on the presence of intermediates/by-products. Fourier transform infrared spectroscopy confirmed the formation of polymerized compounds containing alcoholic/phenolic species. The inductively coupled plasma-atomic emission spectroscopy analysis revealed the presence of ~40% of the total copper in sludge. The copper recovery from the treated wastewater and sludge and its reuse in the oxidation process should be studied in future. Springer-Verlag Berlin Heidelberg, 2014 Homogeneous catalyst nationallicence Phenol nationallicence Polymerized product nationallicence Reaction pathway nationallicence Wet oxidation nationallicence Lal Kanhaiya Centre for Environmental Science and Engineering, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India aut Garg Anurag Centre for Environmental Science and Engineering, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India aut Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/1(2015-01-01), 199-210 1618-954X 17:1<199 2015 17 10098 https://doi.org/10.1007/s10098-014-0777-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10098-014-0777-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lal Kanhaiya Centre for Environmental Science and Engineering, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India aut NATIONALLICENCE 700 1- Garg Anurag Centre for Environmental Science and Engineering, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India aut NATIONALLICENCE 773 0- Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/1(2015-01-01), 199-210 1618-954X 17:1<199 2015 17 10098