International Journal of Environmental Sciences

Volume 4 Issue 5 2014- March 2014    Pages: 660-675  <<Previous    Next>>

Electrocoagulation of fluoride potable water utilizing bipolar electrodes:
Statistical analysis and optimization through response surface methodology

Author Information:

Ghanim A.N.- Electrochemical Engineering department, Engineering College, Babylon University,
Hilla 51002, PO box 4, Iraq

ABSTRACT

This study investigated fluoride removal of municipal potable water by electrocoagulation using response surface methodology that was appliedin the development ofstatistical analyzing, modeling and interpreting the resulted treatment data. In additionthe response, residual, probability, surface and contour plots were achieved. Fractional factorial design has been applied for the simultaneous study of the effects of operation time and the current density on electrocoagulation response. The effectiveness of the considered design parameters was well examined to find the optimum experiment condition.A model to perform simulated regression with fluoride removal response gives the best fitted equation of second-order function of two factor variables that has been obtained to find optimum removal. At initial pH of 8.03 and initial fluoride concentration of 15 mg/l, the optimum conditionsfor maximumfluoride removalof 99.05% werefound to be24.8 min. and 12.15mA/cm2.

Keywords: Electrocoagulation, Factorial Design, Model, ANOVA, Optimization

.DOI:10.6088/ijes.2014040404506

© 2014 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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