Degradation of Azo Dye Pollutants in the Textile Wastewater Using Advanced Oxidation Process

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"The application of Fenton reaction for generating •OH radical, which is used for performing AOP for the degradation of textile effluent. The purpose of the study is to investigate the most cost effective pre-treatment in the textile effluent plant (TEP) in order to enhance the rate of biodegradability of the textile waste water, unless otherwise, which is one of the most men made water pollutants on earth crust. The relevance of this topic is not only beneficial to the textile manufactures but as to look through the general view in order to fight effectively against a general cause of gross water pollution because of textile effluent and examine the possibilities of suggesting a suitable solution. The results showed a general trend that the concentration of Fe2+ and pH of the sample increased together with the maximum value of optical density (OD) at minimum duration of only 1 hour. This trend gives a conclusive idea that the effective pre-treatment in TEP is to increase the concentration of Fenton reagent ([Fe2+] as 10-3 moldm-3 and [H2O2] as 10-2moldm-3) for the significant enhancement of the rate of biodegradability, which was found to be the most cost effective pre-treatment for TEP. The spectral parameters showed maximum absorbance ranging from 200 to 400 nm and these results have obtained more or less the same agreement with photodegradation using sunlight."