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Treatment of Tannery Wastewater by Various Oxidation and Combined Processes | ||
| International Journal of Environmental Research | ||
| مقاله 10، دوره 5، شماره 2، تیر 2011، صفحه 349-360 اصل مقاله (230.18 K) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijer.2011.320 | ||
| نویسندگان | ||
| D. Rameshraja؛ S. Suresh* | ||
| Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee-247 667, Uttarakhand, India | ||
| چکیده | ||
| A general overview on the prospective of various oxidation and combined processes in the treatment of tannery industry effluent are reported. Various oxidation and combined processes such as UV/H2O2/Hypochlorites, Fenton and Electro-oxidation, photo-chemical, photo-catalytic, electro-catalytic oxidation, wet air oxidation, ozonation, biological followed by ozone/UV/ H2O2, coagulation or electro-coagulation and catalytic treatments have been considered. The tannery wastewater with sulphide as main sources of pollutant, electro-coagulation is the best removal efficiency process among the other oxidation processes, whereas for chromium, photo catalytic oxidation process using nano-TiO2 and wet air oxidation in the presence of manganese sulphate and activated carbon as a catalyst are more efficiency processes. The integrated combined processes described permit to meet disposal limits, health quality standards and the recovery of several chemicals utilized in the tanneries. | ||
| کلیدواژه‌ها | ||
| Pollution؛ chromium؛ Sulphide؛ Integrated water | ||
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