Abstract
Electrocoagulation(EC) process is an effective method for the removal caramel from wastewater. In this study, the removal of caramel pigment from sauce wastewater has been studied by EC treatment with aluminum electrodes. The effects of electrolysis time and the initial pH of the sauce wastewater on the removal efficiency of caramel pigment have been investigated. The results indicated that the initial pH of sauce wastewater has a significant effect on the removal efficiency. When the initial pH was kept in the range of 4-8, all aluminum cations produced at the anode formed the insoluble coagulants, leading to a more effective treatment. Flocs formed by the EC process were analyzed by FTIR and the results have been explained.
Published Version
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