International Scientific Journal of Engineering and Management

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Photocatalytic Degradation of Distillery Waste Water

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Photocatalytic Degradation of Distillery Waste Water

Prof. A.S. Shirsath , M r.Maheh Shivaji Gade , Mr Sharthak Shamrao Gagare , Mr.Raut Aniket Sanjay ,

Mr Abhay Dattatray Mandlik

 

 

ABSRACT

Hydrogen peroxide combined with ultraviolet radiation (H2O2/UV) and Photo Fenton (Fe2+/H2O2/UV) be used for water and wastewater treatment for pollution removal. The effect of pH on % COD and Color Reduction from distillery waste comparing the various AOPs such as ultraviolet radiation (H2O2/UV), and Photo Fenton (TiO2/UV). The optimum value for pH 4 having very high efficiency of COD and decolorization of distillery waste water for all process which analyses by experimental observations. The optimum value of reaction time between 90-120 min for having very high efficiency of COD and decolorization of distillery waste water. The optimum value for both H2O2 and TiO2 are 0.5-1 gm/l for all experimental processes.

 

As intensity of UV light increase the rate of photolysis of H2O2 increase. Optimum value of UV 400-450 nm after that rate of degradation reduced. Value of UV intensity should be λ< 450 nm. The effect of pH on % COD Reduction on DWW comparing as Photocatalytic oxidation with UV/H2O2 and UV/TiO2. As value of pH increase from 2 - 4 % Reduction COD increase beyond 4 pH value of % reduction of COD decrease. The maximum reduction using UV/H2O2 and UV/TiO2 at 4 pH are 78 and 85%. The Effect of pH on % Color Reduction on distillery waste comparing as Photocatalytic oxidation with UV/H2O2 and UV/TiO2. As value of pH increase from 2 – 4 the % Reduction Color increase beyond the 4 the value of % reduction of COD decrease.

Maximum reduction of color using UV/H2O2 and UV/TiO2 at 4 pH are 80 and 88%. Effect of Reaction Time on % Color Reduction on distillery waste comparing as Photocatalytic oxidation with UV/H2O2 and UV/TiO2. As Reaction Time increase % Reduction Color increase up to 120 min. Optimum value for 90 min for both processes. After contact time 90-120 min there is no change in reduction of color. For this AOP process TiO2 major chemicals determining operation costs as well as efficiency and the dosage of TiO2 depends on initial COD and color concentration. If COD is higher the requires more TiO2 and if COD lower than the less TiO2 required. As per experimental study optimum amount of TiO2 obtained is 0.5-1 gm/l of waste water treated.      Keywords – AOP, Sugarcane Distillery Waste Water, UV/H2O2 and Fe2+/UV/H2O2 Process, COD Removals and Decolorization of Waste Water


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