Application of direct and indirect oxidation techniques for degradation of some colored organic pollutants in aqueous solution

Document Type : Original Article

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Faculty of Science, Benha university, Benha, Egypt.

Abstract

Although humans need dyes as they play an effective role in industry, including the textile industry or the cosmetics industry such as shampoo and soap, as well as a colorant agent in food industry, they may make negatively affect the environment, especially water pollution, which leads to the deterioration of public health where dye is an Endocrine Disruption chemical (EDC) which make hormonal imbalance for human so it considers toxic and carcinogenic. The main role in this work is removing dyes through a successful treatment. It is known that dyes have high chemical stability so traditional treatment is ineffective method but AOPs appears its ability on eliminating of dye by mineralization and convert dye to substance like carbon dioxide, water and some inorganic salts. Novacron-Deep red S-B is a textile dye that can be removed with some factors like UV/H2O2, Ozone(O3), Fenton Process (Fe2+/ H2O2) and photocatalysis by using Fe3O4 catalyst, each factor is using alone or make synergistic effect between them. Furthermore, magnetite has been prepared with a green method by using green tea leaves then make characterization for it by X-Ray-Diffraction (XRD) and scanning electron microscope (SEM).

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