%0 Journal Article %T Aqueous Phase Thiosulfate Removal Using Photo catalysis %J International Journal of Environmental Research %I University of Tehran/Springer %Z 1735-6865 %A Vohra, M.S. %A Selimuzzaman, S.M. %A Al-Suwaiyan, M.S. %D 2011 %\ 01/01/2011 %V 5 %N 1 %P 247-254 %! Aqueous Phase Thiosulfate Removal Using Photo catalysis %K TiO2 %K p-Cresol %K Thiocyanate %K Advanced Oxidation %K pH %R 10.22059/ijer.2010.310 %X Removal of thiosulfate (S2O32-, 200 mg/L) from simulated wastewater samples was investigated under varying co-pollutants and pH conditions employing the titanium dioxide (TiO2) mediated photocatalysis. For thiosulfate only studies higher substrate removal was noted at lower pH with a specific trend of pH 4 > pH 7 > pH 10. Furthermore, near complete thiosulfate removal was also achieved at pH 4. A similar thiosulfate removal trend was also noted for the binary thiosulfate & p-cresol and thiosulfate & thiocyanate systems at pH 4, indicating high photocatalysis process efficiency. However, thiosulfate removal from the mixed systems at pH greater than 4 was slower as compared to the respective thiosulfate only systems. Nevertheless for the binary thiosulfate & thiocyanate system, significant thiosulfate removal was noted even at pH 12 when the thiosulfate concentration was reduced to 40 mg/L. %U https://ijer.ut.ac.ir/article_310_36483432c361967feb9647d3edb4faa4.pdf