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Aqueous Phase Thiosulfate Removal Using Photo catalysis | ||
| International Journal of Environmental Research | ||
| مقاله 26، دوره 5، شماره 1، فروردین 2011، صفحه 247-254 اصل مقاله (500.83 K) | ||
| شناسه دیجیتال (DOI): 10.22059/ijer.2010.310 | ||
| نویسندگان | ||
| M.S. Vohra* ؛ S.M. Selimuzzaman؛ M.S. Al-Suwaiyan | ||
| Civil Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, Kingdom of Saudi Arabia 31261 | ||
| چکیده | ||
| 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. | ||
| کلیدواژه‌ها | ||
| TiO2؛ p-Cresol؛ Thiocyanate؛ Advanced Oxidation؛ pH | ||
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