Fenton process has proven to be efficient in the removal of color and chemical oxygen demand (COD) from the aqueous environment. In this study, a novel approach is proposed, this include the treatment with ferrous oxide through coagulation followed by integrated Fenton process. However, the excess ferrous and ferric ions from the coagulation step were utilized in the advanced oxidation step using hydrogen peroxide. The advantage here is the usage of the minimum number of hydrogen peroxide to comply with the international environmental, safety, health regulation. The aim of this study is to evaluate the capabilities of the unique integrated process of coagulation and Fenton process for color and COD removal of Azo dye in aqueous environment. The optimum parameters such as coagulant dose, temperature, and the dose of hydrogen peroxide were determined. This work was done to optimize the percentage removal of color and COD. The main properties of the treated wastewater such as pH and COD content were measured after treatment against the Malaysian standard part B. The results show that the proposed method was successful for the removal of color and COD from aqueous environment to reach more than 99% with the new method. |
