International Journal For Multidisciplinary Research

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KINETICS AND EQUILIBRIUM STUDY FOR THE DEGRADATION OF TEXTILE DYES

Author(s) Dr. INDIRA DHARAVATH, S. Srinu Naik
Country India
Abstract This research work mainly deals with the decolorization of organic dye pollutants from aqueous streams using the advanced oxidation process (AOP) as a basetechnique. AOP’s involves the generation of hydroxyl radicals (•OH) and plays a key role in degradation and converting of organic pollutants into CO2, H2O, some short chain organic acids and intermediate compounds. Recently, hydrodynamic cavitation (HC) technique has been explored as a one of the emerging advanced oxidation technologies (AOT) for degradation of various organic pollutants in the aqueous streams. In the present work, HC has been used a basic advanced oxidation technology for the degradation/removal of dye pollutants from wastewater.
As synthesized TiO2, and Fe doped TiO2 nano photo catalysts were characterized by X-raydiffraction (XRD) and transmission electron microscopy (TEM) analysis to evaluate their structure and morphology. Photo catalytic performance of both un-doped and doped TiO2 photocatalyst was investigated for the decolorization of three different Textile dyes in aqueous solution at pH of 6.5 in the presence of hydrodynamic cavitation. Kinetic study was also carried out for the hybrid AOP (HAOP) and that followed the pseudo first-order reaction kinetics.
The results obtained through these studies explored the importance and contributionof the hydrodynamic cavitation as a primary pretreatment technique for obtaining the maximum degradation in wastewater in conjunction with other treatment techniques. From these studies, it was observed that the hydrodynamic cavitation can also be a useful technique for bulk wastewater treatment by scaling up through the incorporation of number of orifice holes, increasing the size of the pipe and pump.
Keywords Textile dyes, H2O2,TiO2, FeTiO2 and ZnO Photocatalysts,Hydrodynamci Cavitation.
Field Engineering
Published In Volume 7, Issue 2, March-April 2025
Published On 2025-04-27
DOI https://doi.org/10.36948/ijfmr.2025.v07i02.42683
Short DOI https://doi.org/g9gvgw
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