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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
environmental science
Electrochemical removal of phenol from oil refinery wastewater
Journal of Hazardous Materials, Volume 163, No. 2-3, Year 2009
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Description
This study explores the possibility of using electrocoagulation to remove phenol from oil refinery waste effluent using a cell with horizontally oriented aluminum cathode and a horizontal aluminum screen anode. The removal of phenol was investigated in terms of various parameters namely: pH, operating time, current density, initial phenol concentration and addition of NaCl. Removal of phenol during electrocoagulation was due to combined effect of sweep coagulation and adsorption. The results showed that, at high current density and solution pH 7, remarkable removal of 97% of phenol after 2 h can be achieved. The rate of electrocoagulation was observed to increase as the phenol concentration decreases; the maximum removal rate was attained at 30 mg L-1 phenol concentration. For a given current density using an array of closely packed Al screens as anode was found to be more effective than single screen anode, the percentage phenol removal was found to increase with increasing the number of screens per array. After 2 h of electrocoagulation, 94.5% of initial phenol concentration was removed from the petroleum refinery wastewater. Energy consumption and aluminum Electrode consumption were calculated per gram of phenol removed. The present study shows that, electrocoagulation of phenol using aluminum electrodes is a promising process. © 2008 Elsevier B.V. All rights reserved.
Authors & Co-Authors
Abdelwahab, Ola E.
Egypt, Cairo
National Institute of Oceanography and Fisheries
Amin, Nevine Kamal
Egypt, Alexandria
Faculty of Engineering
El-Ashtoukhy, El Sayed Zakaria
Egypt, Alexandria
Faculty of Engineering
Statistics
Citations: 366
Authors: 3
Affiliations: 2
Identifiers
Doi:
10.1016/j.jhazmat.2008.07.016
ISSN:
03043894