期刊
WATER SCIENCE AND TECHNOLOGY
卷 68, 期 9, 页码 1940-1949出版社
IWA PUBLISHING
DOI: 10.2166/wst.2013.439
关键词
aldehyde removal; economic analysis; phenol removal; resin effluent; solar energy
This paper is a report on a study which aimed to investigate the effect of different current density, pH, temperature, and cathode-anode combination on the removal of phenol and aldehyde in two samples of actual resin effluent through the process of electrocoagulation using solar energy. Current density 60 A/m(2) and pH 6 proved to be the best levels for both contaminants. As for the effect of temperature, although the highest degree of phenol and aldehyde removal was achieved at 15 W C, 25 W C was taken to be the optimum temperature for economic reasons. The Fe-Fe combination of electrodes was found to be the best as it led to nearly 93% of phenol removal and approximately 95% of aldehyde removal. Also, the effect of electrode combination on energy consumption was studied. It was observed that the Fe-Fe combination consumed the least amount of energy (0.7-4.3 kWh/m(3) of wastewater in the case of phenol and 0.8-4 kWh/m(3) of wastewater in the case aldehyde). Moreover, the Fe-Fe combination brought about the best results in terms of chemical oxygen demand removal: 93% in both cases. Finally, an economic analysis was performed for the electrocoagulation process.
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