COMPARISON OF EFFICIENCY OF APM AND MNO2 BY PHOTOCATALYTICAL DEGRADATION OF SARANINE-O BASED ON QUALITY PARAMETER MODIFICATION
Abstract
Author(s): Swati Jakar*, Ramakant Chaturvedi, Mohan Kumar Sharma
Abstract A semiconductor mediated photocatalytic treatment is preferred due to low operating cost and effective treatment to dyes polluted effluent. But sometimes it can generate even more toxic dye intermediate than parent dye molecule. Before the treated water is discharged into ecosystem, it should be mandatory to analyse it according to quality parameters. Present investigation analyses the use of Ammonium phosphomolybdate and MnO2 with sunlight irradiation for photo catalytic degradation of Safranin O dye contaminated water. Safranin O dye has wide application in counter staining nuclei red and applied to Cotton, fibres, leather, wool, silk and paper. Surplus and used dye is discharged in sink drain which cause hazardous and toxicity concern to ecosystem due to stability of dye and negative modification in quality parameters. When Safranin-dye solution (polluted water) was treated by APM and MnO2 , significant changes were observed in pH, Alkalinity, Hardness, COD, BOD, DO, Conductivity, TDS and concentration of Ca+2, Mg+2, Cl-, F-, NO3-, SO4-2, Turbidity and Colour disappearance. Present paper analyse the comparison of photocatalytic activity of APM and MnO2 based on quality parameters modification which occur in photocatalytic treatment of Safranin O dye. Keywords- Safranin O, Photocatalysis, APM, MnO2, Quality parameters
