Journal of Separation Science and Engineering Vol. 3, No. 1, pp (MBR)

Transcription

1 Journal of Separation Science and Engineering Vol. 3, No. 1, pp (MBR).. mg/l MLSS mg/l

2 F/M BOD (SRT) 5-How andsalwomir 1- MBR: membrane Bioreactor 2- MLSS: Mixed Liquor Suspended Solids 3- SRT: Solid Retention Time 4- Trussell

3 Enterobacter cloacae,enterobactersakazakii K 2 HPO 4 KH 2 PO 4 NaCl NH 4 Cl MgSO 4.7H 2 O FeSO 4.7H 2 O Viscous paraffin Tween 80 KH 2 PO 4 g sectiona K 2 HPO 4 g, NaNO 3 g, NaCl g, yeast, section B extract g g,(nh 4 ) 2 SO 4 MgSO 4.7H 2 O sectionc section D g EDTA g, MnSO 4.H 2 O g, NaCl g, ZnSO 4. H 2 O g, CuSO 4. H 2 O g, FeSO 4. H 2 O g, AlK(SO 4 ) 2 g, CaCl 2. H 2 O g, Na 2 MoO 4. H 2 O g, NiCI 2. H 2 O g, H 3 BO 3 g

4 section B,C,D sectiona section A section B, C, D, gr Closed St. Method 5310B titrametric method reflux TOC PC510 section A, section B, C, D gr MLSS, =

5 Oil removal efficiency Oil concentration Salinity Stage (mg/l) HRT (hr) MLSS (mg/l) Removal efficiency (%),, Oil removal efficiency Oil concentration PH TOC

6 mg/l. TOC 1-Permeate

7 1 S. T. Orszulik, (1997), Environmental Technology in the Oil Industry, Hampshire: Springer, 2nd ed., 2 Simon Judd, (2006), The MBR Book Principals and Applications of Membrane Bioreactors in Water and Wastewater Treatment, Oxford: Elsevier 3Cicek, N., (2003), A Review of Membrane Bioreactors and their potential Application in the Treatment ofagricultural Wastewater, Can.Biosyst.Eng.Vol.45, Visvanathan, C., (2000), Membrane Separation Bioreactors for Wastewater Treatment, Crit. Rev. Environ. Sci. Technol., 30, Sutton, P.M., (2002), Membrane Bioreactor Industrial and Municipal Wastewater Application: Long term Operating Experience, in: proceedings of WEF 75th Annual Conference and Exposition, Chicago, IL, 6 X. zheng, Y. zhou, sh. Chen, et al., (2009), Survey of MBR market: Trends and perspectives in China, Desalination, 1-3 7J.A. Gil, L.T, A. Rueda, B. Monta?o, M. Rodr?guez, D. Prats, (2009), Monitoring and analysis of the energy cost of an MBR, Desalination, Visvanathan, C, (2000), Membrane Separation Bioreactors for Wastewater Treatment, Crit. Rev. Environ. Sci. Technol., 30, Th. Wozniak, (2009), MBR design and operation using MPE-technology (Membrane Performance Enhancer), Desalination, M.E. Hernandez Rojas, R. Van Kaam, S. Schetrite, C. Albasi, (2005), Role and variations of supernatant compounds in submerged membrane bioreactor fouling, Desalination, 179, R.S. Trussell, R.P. Meerlo, S.W. Hermanowicz and D. Jenkins, (2006), The effect of organic loading on process performance and membrane fouling in a submerged membrane bioreactor treating municipal wastewater, WaterResearch, 40, TOC 12 Y.N. How and W.H. Salwomir, (2005), Membrane bioreactor operation at short solids retention times: performance and biomass characteristics, Water Research, 39 (6), F Menga, S R Chae, A Drews,et al., (2009), Recent advances in membrane bioreactors (MBRs): Membrane fouling and membrane material, Water Research, 43, Aline F. Viero, Thain a M. de Melo, Ana Paula R. Torres, et al., (2008), The effects of long-termfeeding of high organic loading in a submergedmembrane bioreactor treating oil refinerywastewater,journal of Membrane Science, 319, P.C. Sridang, A. Pottier, C. Wisniewski, A. Grasmick, (2008), Performance and microbialsurveying insubmerged membrane bioreactor for seafood processing wastewatertreatment, Journal of Membrane Science, 317, M.J. Sharrer, Y. Tal, D. Ferrier, J.A. Hankins, S.T. Summerfelt, (2007), Membrane biologicalreactor

8 17 Sondhi, R., Lin, Y. S., & Alvarez, F. (2000), Cross flow filtration of chromium hydroxide suspension by ceramic membranes: fouling and its minimization by backpulsing, Journal of Membrane Science, 174, treatment of a saline backwash flow from a recirculating aquaculturesystem, Aquac. Eng. 36, Treatment of Oil Polluted Industrial Wastewater in a Sequence Batch Membrane Bioreactor S. Abdollahi 1, J.S. Moghaddas 2, D. Mowla 3 1- M.Sc. of Chemical Engineering, Sahand University of Technology. 2- Associate Professor of Transport Phenomena Research Centre, Chemical Engineering Faculty, Sahand University of Technology. 3- Professor of Chemical Engineering, Shiraz University. A R T I C L E I N F O Article history: Received 8 September 2010 Received in revised form 13 Feb Aepted 12 June 2011 Key words: Membrane Bioreactor microorganism oily pollutants high salinity A B S T R A C T Membrane bioreactor (MBR) is a combination of one bioreactor system and one membrane system. Membrane bioreactors (MBR) have been widely used in wastewater treatment that requires high effluent quality, due to their important advantages over traditional technologies. In this research, the microorganisms with the ability to withstand in an environment with high salinity and oil were isolated from heavy crude oil in the south of Iran and biodegradation of oil pollutants studied. The adapted bacteria were cultivated later in the feed tank of a submerged hollow fiber MBR and biodegradation of oil polluted industrial wastewater with concentration of ( mg/l) and MLSS concentration ( mg/l) have been studied. The obtained results suggested that the existing membrane bioreactor have high performance in crude oil contaminated wastewater treatment, considering its microorganisms, environmental conditions (=6.7-8), temperature (28-30 C), high salinity (close to sea s level) and removal efficiency (80-93%). All right reserved.

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