Electrochemical removal of copper from a simulated wastewater using a rotating tubular packed bed of woven screens electrode Removal of heavy metals using packed bed rotating electrode

Hemeidan, Jenan Hussein; H. Abbar, Ali

doi:10.30772/qjes.v12i2.601

	Electrochemical removal of copper from a simulated wastewater using a rotating tubular packed bed of woven screens electrode Removal of heavy metals using packed bed rotating electrode
Al-Qadisiyah Journal for Engineering Sciences
Volume 12, Issue 2, June 2019, Pages 127-134 PDF (789.77 K)
DOI: 10.30772/qjes.v12i2.601
Authors
Jenan hussein hemeidan; Ali H. Abbar
Chemical Engineering Department -Faculty of Engineering – University of Al-Qadisiyah-Iraq
Abstract
Copper removal from a simulated wastewater was investigated by using rotating tubular packed bed of woven screens electrode as a cathode in a new design of electrochemical reactor. Effects of electrolysis operating parameters like current (0.5–2.5 A), rotation speed (150–750 rpm), and initial copper concentration (100–500ppm) were investigated. Optimization of process parameters was carried out by adopting response surface methodology (RSM) combined with Box–Behnken Design (BBD) where copper removal efficiency was selected as a response function. The results indicated that current has the main effect on the copper removal efficiency followed by rotation speed and concentration. The results of regression analysis revealed that the experimental data could be fitted to a second-order polynomial model with a value of determination coefficient (R²) equal to 0.9894 and Fisher test at value of 51.57 for. The optimum conditions of the process parameters based on RSM method were an initial copper concentration of 205 ppm, current of 2.5A, and rotation speed of 750 rpm utilizing cathode composed of screens with mesh no. 30 where a final copper concentration less than 2 ppm was obtained after 30 min.
Keywords
Three-dimensional electrodes; Rotating cylinder electrode; Woven screens; Copper removal; Response surface methodology

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