International
Journal of Engineering Research & Technology (IJERT), Vol. 2 Issue 10, October
- 2013
Treatment
of Petroleum Refinery Wastewater by Continuous Electrocoagulation
Muftah H. El-Naas, Sulaiman Al-Zuhair, Amal
Al-Lobaney
Chemical and Petroleum Engineering Department, UAE University
Abstract
Electrocoagulation is a process that involves dissolution of a metal anode with
simultaneous formation of hydroxyl ions and hydrogen gas at the cathode. It has
recently attracted the attention of many industries as a potential technique
for the treatment and purification of several types of highly contaminated
wastewater.
In
this study, electrocoagulation has been evaluated as a treatment process for
the reduction of high concentrations of COD in petroleum refinery wastewater.
Experiments were carried out in the continuous mode using an electrocoagulation
reactor with aluminum electrodes.
The effects of key operating parameters such current density, pH,
initial COD content and the inlet flow rate were investigated. The reduction of
COD content was significantly improved by increasing the current density and
reducing the feed flow rate. The reactor performance was optimized at a neutral
pH, in the range of 6-8, and ambient temperature of about 25 oC. The results
demonstrated the technical feasibly of electrocoagulation for the pretreatment
of heavily contaminated industrial wastewater.
Free Full Text Source: http://www.ijert.org/view.php?id=5807&title=treatment-of-petroleum-refinery-wastewater-by-continuous-electrocoagulation
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