Treatment of Synthetic Textile Wastewater Using Ultrasonication as Advanced Oxidation Process

Abstract

Wastewater crisis is one of the major problems faced by the globe. A due rapid increase in industrialization the quantity of wastewater generation has been increased exponentially. Textile industries contribute a major role in waste generation. A report suggests that textile industries contribute 17 to 20 % wastewater of total wastewater. Congo red which possesses a complex structure is widely used in the textile industry as the anionic dye is used to perform experiments. Congo red solution of 20 ppm was prepared in a lab. Ultrasonic bath of 40 kHz is used to check the efficacy of cavitation effect on decolorization of dye solution at different parameters such as volume, power, and sonication time and pH variation. Significant decolorization was obtained at 50W power and maximum % removal of color was observed at sonication time 180 min. Hydrogen peroxide was also used along with sonication but no significant effect on decolorization was observed.