دورية أكاديمية
Prediction of effluent COD concentration of UASB reactor using kinetic models of monod, contois, second-order Grau and modified stover-kincannon
| العنوان: | Prediction of effluent COD concentration of UASB reactor using kinetic models of monod, contois, second-order Grau and modified stover-kincannon |
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| المؤلفون: | Seyyed Mehran Abtahi, Mohammad Mehdi Amin, Roya Nateghi, Ali Vosoogh, Mehdi Gholizadeh Dooranmahalleh |
| المصدر: | International Journal of Environmental Health Engineering, Vol 2, Iss 1, Pp 12-12 (2013) |
| بيانات النشر: | Wolters Kluwer Medknow Publications, 2013. |
| سنة النشر: | 2013 |
| المجموعة: | LCC:Environmental technology. Sanitary engineering LCC:Environmental engineering LCC:Environmental sciences |
| مصطلحات موضوعية: | Contois model, modified stover-kincannon model, monod model, second-order grau model, UASB Reactor, Environmental technology. Sanitary engineering, TD1-1066, Environmental engineering, TA170-171, Environmental sciences, GE1-350 |
| الوصف: | Aims: The aim of this study is predicting the effluent COD of UASB reactors with flowing mathematical models. Materials and Methods: Weak industrial wastewater of the township, after passing screening unit, grit removal chamber and equalization tank, entered UASB reactor with volume of 144 m 3 (Length and width: 6 m; useful depth: 4 m). Analyses of laboratory parameters were done in accordance with water and wastewater standards. Results: The reactor start-up started with hydraulic retention time of 14.4 d and organic loading rate of 0.04 Kg COD/m 3 .d or 0.02 Kg BOD 5 /m 3 .d which in 200 days, hydraulic retention time reached to 0.9 d and organic loading rate reached to 0.85 Kg COD/m 3 .d or 0.45 Kg BOD 5 /m 3 .d eventually, that the highest COD and BOD 5 removal efficiencies were observed up to 70% and 64%, respectively in the hydraulic retention time of 0.9 d. In the kinetic evaluation, the equations for effluent COD concentration prediction were obtained after calculating kinetic coefficients of Y, K d , K, K S and μmax in the Monod model; β and μmax in the Contois model; α, β and K 2(S) in the second-order Grau model and K B and U max in the modified Stover-Kincannon model. Conclusion: The effluent COD concentration of reactor is a function of influent COD concentration of reactor in the modified Stover-Kincannon and second-order Grau models that have highest correlation coefficients while, it is a function of reactor′s solids retention time in Contois and Monod models. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2277-9183 |
| Relation: | http://www.ijehe.org/article.asp?issn=2277-9183;year=2013;volume=2;issue=1;spage=12;epage=12;aulast=Abtahi; https://doaj.org/toc/2277-9183 |
| DOI: | 10.4103/2277-9183.110149 |
| URL الوصول: | https://doaj.org/article/d6bbf14d3c7d40c0a734441e5ab0fc4a |
| رقم الأكسشن: | edsdoj.6bbf14d3c7d40c0a734441e5ab0fc4a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 22779183 |
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| DOI: | 10.4103/2277-9183.110149 |