|
|
|
| Analysis the effect of corrugated micro-channel turbulence promoter on reducing membrane fouling of SFMBR |
| XIE Fang, LIU Jin-rong, CHEN Wei-wei |
| School of Chemical and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China |
|
|
|
|
Abstract The aim of the present research was to analyze the effect of corrugated micro-channel turbulence promoters (MCTP) on reducing membrane fouling by investigating the membrane fouling resistance and membrane fouling characteristics of a submerged flat-sheet membrane bioreactor (SFMBR). The results demonstrated that the corrugated micro-channel turbulence promoters could effectively reduce the total resistance Rt (68.01%), in which the Rrf, Rc and Rp+Ra were reduced 54.20%, 87.98% and 84% respectively, the thickness of the cake layer was diminished, the contents of organic and inorganic foulants of SFMBR equipped with MCTP were reduced, and the cake layer was more easily removed by hydraulic conditions compared with the traditional SFMBR. According to membrane fouling resistance distribution and membrane fouling characterization results, the effect of corrugated micro-channel turbulence promoters on reducing membrane fouling was analyzed from the four aspects (turbulent mechanism, counter-diffusion mechanism, flocculation mechanism and the micro-pore enhance mechanism).
|
|
Received: 17 October 2017
|
|
|
|
Corresponding Authors:
解芳,副教授,xiefzhl@163.com;刘进荣,教授,jinrong_liu@126.com
E-mail: xiefzhl@163.com;jinrong_liu@126.com
|
|
|
|
| [1] |
Liu Y F, He G H, Li B J. Research developments of flux enhancement in membrane process[J]. Chemical Industry Engineering Progress, 2006,25:30-34.
|
| [2] |
Xing W H, Tong J Z, Xu N P, et al. Control of concentration polarization and fouling of membranes in microfiltration and ultrafiltration[J]. Chemical Industry Engineering Progress, 2000, 1:44-48,56.
|
| [3] |
Wei P, Zhang K S, Gao W M. CFD modeling of hydrodynamic characteristics of slug bubble flow in a flat sheet membrane bioreactor[J]. Journal of Membrane Science, 2013,445:15-24.
|
| [4] |
Zohreh J, Fartin Z A, Amir F. Computational fluid dynamics modeling and experimental study of continuous and pulsatile flow in flat sheet microfiltration membranes[J]. Journal of Membrane Science, 2014,450:207-214.
|
| [5] |
Gupta B B, Howell J A, Wu D, et al. A helical baffle for cross flow microfiltration[J]. Journal of Membrane Science, 1995,102:31-42.
|
| [6] |
Ahmad A L, Mariadas A. Baffled microfiltration membrane and its fouling control for feed water of desalination[J]. Desalination, 2004,168:223-230.
|
| [7] |
赵宗艾,姜涛.附加湍流器强化陶瓷膜微滤过程的研究[J]. 化工机械, 1997,24(6):315-318.
|
| [8] |
Xu N, Xing W H, Xu N P, et al. Application of turbulence promoters in ceramic membrane bioreactor used for municipal wastewater reclamation[J]. Journal of Membrane Science, 2002, 210:307-313.
|
| [9] |
Xu N, Xing W H, Xu N P, et al. Study on ceramic membrane bioreactor with turbulence promoter[J]. Separation Purification Technology, 2003,32:403-410.
|
| [10] |
Krsti? D M, Teki? M N, Cari? M D, et al. Static turbulence promoter in cross-flow microfiltration of skim milk[J]. Desalination, 2004,163:297-309.
|
| [11] |
Krsti? D M, Koris A K, Teki? M N. Do static turbulence promoters have potential in cross-flow membrane filtration applications?[J]. Desalination, 2006,191:371-375.
|
| [12] |
陈日志,张利雄,邢卫红,等.湍流促进器对液固一体式膜反应器中膜过滤性能影响的研究[J]. 现代化工, 2005,25(7):56-58,60.
|
| [13] |
镇祥华,于水利,郑海枫,等.附加湍流器强化油田采出水超滤过程的研究[J]. 中国给水排水, 2006,22(3):9-12.
|
| [14] |
Zhen X H, Yu S L, Wang B F, et al. Flux enhancement during ultrafiltration of produced water using turbulence promoter[J]. Journal of Environment. Science, 2006,18:1077-1081.
|
| [15] |
Xie F, Liu J R, Wang J M, Chen W W. Computational fluid dynamics simulation and particle image velocimetry experimentation of hydrodynamic performance of flat-sheet membrane bioreactor equipped with micro-channel turbulence promoters with micro-pores, Korean Journal Chemical Engineering, 2016,33:2169-2178.
|
| [16] |
Bian R, Yamamoto K, Watanabe Y. The effect of shear rate on controlling the concentration polarization and membrane fouling[J]. Desalination, 2000,131:225-236.
|
| [17] |
Choi H, Zhang K, Dionysiou D D, et al. Effect of permeate flux and tangential flow on membrane fouling for wastewater treatment[J]. Separation Purification Technology, 2005,45(1):68-78.
|
| [18] |
孟凡刚.膜生物反应器膜污染行为的识别与表征[D]. 大连:大连理工大学, 2007.
|
| [19] |
Xie F, Chen W W, Wang J M, Liu J R. Fouling characteristics and enhancement mechanisms in a submerged flat-sheet membrane bioreactor equipped with micro-channel turbulence promoters with micro-pores, Journal of Membrane Science, 2015, 495:361-371.
|
| [20] |
Wang C, Chen W N, Hu Q Y, et al. Dynamic fouling behavior and cake layer structure changes in nonwoven membrane bioreactor for bath wastewater treatment[J]. Chemical Engineering Journal, 2015,264:462-469.
|
| [21] |
Xie F, Chen W W, Wang J M, Liu J R. CFD and experimental studies on the hydrodynamic performance of submerged flat-sheet membrane bioreactor equipped with micro-channel turbulence promoters[J]. Chemical Engineering and Processing:Process Intensification, 2016,99:92-97.
|
| [22] |
常青,傅金镒,郦兆龙.絮凝原理[M]. 兰州:兰州大学出版社, 1993.
|
| [23] |
Meng F, Yang F, Shi B, et al. A comprehensive study on membrane fouling in submerged membrane bioreactors operated under different aeration intensities[J]. Separation Purification Technology, 2008,59(1):91-100.
|
| [24] |
Zhao W T, Shen Y X, Xiao K, et al. Fouling characteristics in a membrane bioreactor coupled wit anaerobic-anoxic-oxic process for coke wastewater treatment[J]. Bioresource Technology, 2010, 101:3876-3883.
|
| [25] |
Bhattacharjee S, Ko C H, Elimelech M. DLVO Interaction between Rough Surfaces[J]. Langmuir, 1998,14:3365-3375.
|
| [26] |
Derjaguin B, Landau L. Theory of the stability of strongly charged lyophobic sols and of the adhesion of strongly charged particles in solutions of electrolytes[J]. Acta Physicochim URSS, 1941,14:633.
|
| [27] |
Verwey E J W, Overbeek J Th G. Theory of the stability of lyophobic colloids[M]. Elsevier:Amsterdam, The Netherlands, 1948.
|
|
|
|
