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Shakerkhatibi, M., Monajemi, P., Jafarzadeh, M.T., Mokhtari, S.A., Farshchian, M.R.. (1391). Feasibility Study on EO/EG Wastewater Treatment Using Pilot Scale SBR. , 7(1), 195-204. doi: 10.22059/ijer.2012.598
M. Shakerkhatibi; P. Monajemi; M.T. Jafarzadeh; S.A. Mokhtari; M.R. Farshchian. "Feasibility Study on EO/EG Wastewater Treatment Using Pilot Scale SBR". , 7, 1, 1391, 195-204. doi: 10.22059/ijer.2012.598
Shakerkhatibi, M., Monajemi, P., Jafarzadeh, M.T., Mokhtari, S.A., Farshchian, M.R.. (1391). 'Feasibility Study on EO/EG Wastewater Treatment Using Pilot Scale SBR', , 7(1), pp. 195-204. doi: 10.22059/ijer.2012.598
Shakerkhatibi, M., Monajemi, P., Jafarzadeh, M.T., Mokhtari, S.A., Farshchian, M.R.. Feasibility Study on EO/EG Wastewater Treatment Using Pilot Scale SBR. , 1391; 7(1): 195-204. doi: 10.22059/ijer.2012.598

Feasibility Study on EO/EG Wastewater Treatment Using Pilot Scale SBR

International Journal of Environmental Research
مقاله 19، دوره 7، شماره 1، فروردین 2013، صفحه 195-204    اصل مقاله (125.73 K)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22059/ijer.2012.598
نویسندگان
M. Shakerkhatibi* 1؛ P. Monajemi2؛ M.T. Jafarzadeh3؛ S.A. Mokhtari4؛ M.R. Farshchian1
1Department of Environmental Health Engineering, Tabriz University of Medical Sciences, Tabriz, Iran
2Department of Civil Engineering, University of Shiraz, Shiraz, Iran
3Manager of Environment, National Iranian Petrochemical Company, Tehran, Iran
4Department of Environmental Health Engineering, Ardabil University of Medical Sciences
چکیده
The sequencing batch reactors were developed to treat the actual wastewater from ethylene
glycol/ethylene oxide producing industry. Four identical reactors with total and effective liquid volumes of 9
and 7 L were operated respectively in parallel. Laboratory experiments were conducted with different organic
loadings of 500, 1000, 1500 and 3000 g-COD/m3.day and the performance of the reactors was studied under different sludge ages of 10, 20 and 30 days, the kinetic constants at optimal operational conditions were also determined. According to the results, the efficient removal of COD was 79.5 and 83.5% (SRT = 20 days) and 86% (SRT = 30 days) for SBR 1 and 2 respectively (OLR = 0.5 to 1 kg-COD/m3.day) with required reaction time of about 17 h. In order to reach the COD removal efficiencies over 86% at higher OLR values, the researchers required longer reaction periods about 34.5 h for SBR 3 and 4. However, the SRT values have no significant effects on the performance of SBR 1 and 2 at the aeration times greater than 22.5 h while in the case of reactors 3 and 4, with an increase on SRT at all aeration times, the COD removal efficiency increased. It is concluded that the system used in the present study could show an acceptable stability and performance in the treatment of the wastewater containing high concentrations of organic matters especially from EO/EG industries.
کلیدواژه‌ها
Petrochemical wastewater؛ SBR؛ Ethylene Glycol/Ethylene Oxide؛ Kinetic Coefficients
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