title

مطالعه امکان سنجی تصفیه فاضلاب EO/EG با استفاده از سیستم SBR در مقیاس پایلوت

شاکر خطیبی, محمد and منجمی, پرویز and جعفرزاده, نعمت الله and مختاری, سیداحمد and فرشچیان, محمدرضا (1391) مطالعه امکان سنجی تصفیه فاضلاب EO/EG با استفاده از سیستم SBR در مقیاس پایلوت. Iranian Journal of Environmental Research ــ 7 (1). pp. 195-204. شاپا 1735-6865

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Title

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

English Abstract

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.

Item Type:Article
زبان سند : انگلیسی
نویسنده مسئول :محمد شاکر خطیبی
نویسنده :پرویز منجمی
نویسنده :نعمت الله جعفرزاده
نویسنده :سیداحمد مختاری
نویسنده :محمدرضا فرشچیان
Additional Information:IF: 1.462 Indexed in: ISI, Scopus
کلیدواژه ها (انگلیسی):Petrochemical wastewater , SBR , Ethylene Glycol/Ethylene Oxide , Kinetic coefficients
Subjects:WA Public Health > WA 30 Social, Economic, and Environmental factor in public health
WA Public Health > WA 30 Social, Economic, and Environmental factor in public health
Divisions:Faculty of Health > Department of Environmental health
ID Code:4133
Deposited By: Dr Syyed Ahmad Mokhtari
Deposited On:12 Feb 1392 07:26
Last Modified:25 Sep 1400 12:12

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