期刊
FUEL
卷 110, 期 -, 页码 133-140出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2012.11.067
关键词
COD; Industrial wastewater; Treatment process; Pulse; Ozonation reactors
资金
- Centro Conjunto de Investigacion en Quimica Sustentable, UAEM-UNAM
- CONACYT [153828]
The effectiveness of electrochemical, ozone and integrated electrochemical-ozone processes on industrial wastewater treatment was evaluated. The effect of continuous and pulsing addition of energy was studied. In the electrochemical treatment under pulsing operation, the chemical oxygen demand COD removal was found to be 28% at 60 min while pulsing ozonation led to obtain 48% COD removal after 36 min. In the integrated electrochemical-ozone process with energy pulses, the COD reduction was observed to be 80% after 44 min of treatment. Initial pH was 7.5 at all experiments. Finally, the sludge produced during integrated electrochemical-ozone process with energy pulses was quantified and the morphology was evaluated by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDS). The amount of sludge produced and electrodes passivation after the integrated method was found to be lower than with the electrochemical method alone. (C) 2012 Elsevier Ltd. All rights reserved.
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