Optimization of pollutants removal from textile wastewater by electrocoagulation through RSM

Abstract EN

This study concerns with electrochemical technique known electrocoagulation used to treat a high polluted effluent whereby sacrificial anodes corrode to release active coagulant precursors into the solution.

Response Surface Methodology (RSM) was applied in the development of modeling, statistical analyzing, and interpreting the resulted treatment data of textile wastewater by electrocoagulation, besides response, residual, probability, surface and contour plots.

A central composite design has been used for the simultaneous study of the effects of operation time and the current density on electrocoagulation responses.

The effectiveness of the considered design parameters was well examined to find the optimum experiments with less lack of fit.

Models to perform simulated regressions with one response gives the best fitted equation of second-order functions of two factor variables that has been obtained to find optimum removals.

The optimum conditions for predicted maximum COD, TSS and Turbidity removals were found to be (56.54 min.

and 20mA / cm2), (53.13 min.

and 20 mA / cm2) and (54.74 min.

and 20 mA / cm2), respectively.