Application of Electrocoagulation Process for Reactive Red 198 Dye Removal from the Aqueous Solution

Abstractbackground and purpose: the main objectives of this research were to evaluating theapplication of electrocoagulation process for 198 dye from the aqueous phase and determiningthe optimum operating conditions to the dye removal using aluminum and iron electrodes.materials and methods: the present study was conducted in bench-scale. thespectrophotometer dr 5000 was used to determine the dye concentration. the effects of ph,retention time, voltage, dye concentration on the efficiency of electrocoagulation process wereinvestigated. data were analyzed in spss for windows 16.0 using pearson’s correlationcoefficient to analyze the relationship between these parameters.results: the results showed that the optimal conditions for reactive red 198 (rr-198) dyeremoval from the aqueous solution are ph of 11, the voltage of 32 v, the initial dyeconcentration of 10 ppm, and the reaction time of 40 min. pearson correlation analysis showedthat there is a significant relationship between voltage and the reaction time with the removalefficiencies (p < 0.01).conclusion: it was revealed that the removal efficiency of dye was directly proportional to thevoltage and reaction time, but inversely proportional to the initial dye concentration. inconclusion, electrocoagulation process using two-fold iron and aluminum electrodes is anappropriate method for reducing the rr-198 dye in the aqueous phase.