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基于CFD的大型膜生物反应器的设计及运行优化

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柳蒙蒙, 陈梅雪, 杨敏, 郁达伟, 郑嘉熹, 魏源送, 冀春苗, 王晓爽, 常江. 基于CFD的大型膜生物反应器的设计及运行优化[J]. 环境工程学报, 2018, 12(2): 552-558. doi: 10.12030/j.cjee.201708022
引用本文: 柳蒙蒙, 陈梅雪, 杨敏, 郁达伟, 郑嘉熹, 魏源送, 冀春苗, 王晓爽, 常江. 基于CFD的大型膜生物反应器的设计及运行优化[J]. 环境工程学报, 2018, 12(2): 552-558. doi: 10.12030/j.cjee.201708022
shu
LIU Mengmeng, CHEN Meixue, YANG Min, YU Dawei, ZHENG Jiaxi, WEI Yuansong, JI Chunmiao, WANG Xiaoshuang, CHANG Jiang. Design and operation optimization on full-scale membrane bioreactor using CFD[J]. Chinese Journal of Environmental Engineering, 2018, 12(2): 552-558. doi: 10.12030/j.cjee.201708022
Citation: LIU Mengmeng, CHEN Meixue, YANG Min, YU Dawei, ZHENG Jiaxi, WEI Yuansong, JI Chunmiao, WANG Xiaoshuang, CHANG Jiang. Design and operation optimization on full-scale membrane bioreactor using CFD[J]. Chinese Journal of Environmental Engineering, 2018, 12(2): 552-558. doi: 10.12030/j.cjee.201708022
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基于CFD的大型膜生物反应器的设计及运行优化

  • 1.

    中国科学院生态环境研究中心,北京100085

  • 2.

    中国科学院大学,北京 100049

  • 3.

    北京排水集团科技研发中心,北京 100022

  • 基金项目:

    国家水体污染控制与治理科技重大专项(2015ZX07203-005)

    国家自然科学基金资助项目(21777161,3,21777161)

    国家重点研发计划(2016YFE0118500)

Design and operation optimization on full-scale membrane bioreactor using CFD

  • 1.

    Research Center for Eco-Environment Science, Chinese Academy of Sciences, Beijing 100085, China

  • 2.

    University of Chinese Academy of Sciences, Beijing 100049, China

  • 3.

    Center of Technology Development, Beijing Drainage Group Co.Ltd., Beijing 100022, China

  • Fund Project:

  • 摘要: 基于计算流体力学(CFD)方法,使用Eulerian多相流模型,对500 m3·d-1的膜生物反应器中曝气管布置方式以及4种气水比(10∶1、15∶1、20∶1和25∶1)进行优化研究,通过对不同反应器构型内部流场、速度场和膜面液体流速进行分析比较,同时借助停留时间分布(RTD)实验对模拟结果进行实验验证。结果表明:曝气管“对齐”布置方式优于“间隔”和“垂直”布置；考虑膜面冲刷以及能耗方面,确定最佳气水比为20∶1,此时反应器内形成了循环流动,膜面冲刷效果比较好,低速区占比较小,对降低膜污染有很好的作用。
    Abstract: Based on the computational fluid dynamics method, the Eulerian multiphase flow model was used to simulate the 500 m3·d-1 aerobic MBR and optimize its arrangement of aerators and four gas-water ratios (10∶1,15∶1,0∶1,5∶1). The internal flow field, velocity field and membrane velocity of different reactor configurations were analyzed and compared, and the simulation results were verified by means of residence time distribution (RTD).The results show that the “alignment” arrangement of the aeration pipe is better than that of “interval” and “vertical”. Considering the membrane surface erosion and energy consumption, the optimum gas-water ratio is 20∶1. In this operation status, the reactor flow, membrane erosion effect is better, and low-speed area accounted for relatively small, which has a good effect to reduce membrane pollution.
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  • [1] JUDD S.The MBR Book:Principles and Applications of Membrane Bioreactors for Water and Wastewater Treatmen[M].北京:科学出版社,2012
    [2] 王琦,樊耀波.膜生物反应器在污水处理与回用中的能耗分析[J].膜科学与技术,2012,2(3):95-103
    [3] LE-CLECH P, CHEN V, FANE T A G.Fouling in membrane bioreactors used in wastewater treatment[J].Journal of Membrane Science,2006,4(1):17-53
    [4] CHANG I S, CLECH P L, JEFFERSON B, et al.Membrane fouling in membrane bioreactors for wastewater treatment[J].Journal of Environmental Engineering,2002,8(11):1018-1029
    [5] DREWS A.Membrane fouling in membrane bioreactors:Characterisation, contradictions, cause and cures[J].Journal of Membrane Science,2010,3(1/2):1-28
    [6] AL-HALBOUNI D, TRABER J, LYKO S, et al.Correlation of EPS content in activated sludge at different sludge retention times with membrane fouling phenomena[J].Water Research,2008,2(6/7):1475-1488
    [7] CHARFI A,BEN A N,HARMAND J.Analysis of fouling mechanisms in anaerobic membrane bioreactors[J].Water Research,2012,6(8):2637-2650
    [8] KRAUME M,WEDI D,SCHALLER J,et al.Fouling in MBR:What use are lab investigations for full scale operation?[J].Desalination, 2009,6(1/2/3):94-103
    [9] NDINISA N,FANE A,WILEY D,et al.Fouling control in a submerged flat sheet membrane system.Part II:Two-phase flow characterization and CFD simulations[J].Separation Science and Technology,2006,1(7):1411-1445
    [10] 王福军.计算流体动力学分析:CFD软件原理与应用[M].北京:清华大学出版社, 2004
    [11] 贾晓强.气液固三相生物反应器流动与降酚特性动态行为研究[D].天津:天津大学, 2008
    [12] 杨敏,徐荣乐,袁星,等.膜生物反应器ASM-CFD 耦合仿真研究进展[J].膜科学与技术,2015,5(6):126-133
    [13] YANG M,WEI Y,ZHENG X,et al.CFD simulation and optimization of membrane scouring and nitrogen removal for an airlift external circulation membrane bioreactor[J].Bioresource Technology,2016,9:566-575
    [14] YANG M,YU D,LIU M,et al.Optimization of MBR hydrodynamics for cake layer fouling control through CFD simulation and RSM design[J].Bioresource Technology,2016,7:102-111
    [15] 罗南, 王捷, 贾辉,等.导流及布气方式对膜生物反应器内部流场影响的数值模拟分析[J].膜科学与技术, 2012,2(4):54-60
    [16] 张宇,吴志超,藏莉莉,等.CFD在平板膜MBR设计及运行优化中的研究[J].环境工程学报, 2016,0(2):735-741
    [17] 张晴,樊耀波,徐荣乐.气升循环分体式MBR中H循环管水力学研究[J].膜科学与技术,2014,4(1):39-44
    [18] 周俊波.Fluent 6.3流场分析从入门到精通[M].北京:机械工业出版社2012
    [19] HOWELL J A,CHUA H C,ARNOT T C.In situ manipulation of critical flux in a submerged membrane bioreactor using variable aeration rates, and effects of membrane history[J].Journal of Membrane Science,2004,2(1/2):13-19
    [20] 朱红钧.FLUENT 12流体分析及仿真[M].北京:清华大学出版社,2014
    [21] SNCHEZ F,VIEDMA A,KAISER A S.Hydraulic characterization of an activated sludge reactor with recycling system by tracer experiment and analytical models[J].Water Research,2016,1:382-392
    [22] OUEDRAOGO F R,ZHANG J,CORNEJO P K,et al.Impact of sludge layer geometry on the hydraulic performance of a waste sabilization pond[J].Water Research,2016,9:253-262
    [23] KAVOUSI F,SYRON E,SEMMENS M,et al.Hydrodynamics and gas transfer performance of confined hollow fibre membrane modules with the aid of computational fluid dynamics[J].Journal of Membrane Science, 2016,3:117-128
    [24] BRANNOCK M W D,WANG Y,LESLIE G.Evaluation of full-scale membrane bioreactor mixing performance and the effect of membrane configuration[J].Journal of Membrane Science,2010,0(1/2):101-108
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  • 刊出日期:  2018-02-08

基于CFD的大型膜生物反应器的设计及运行优化

  • 1. 中国科学院生态环境研究中心,北京100085
  • 2. 中国科学院大学,北京 100049
  • 3. 北京排水集团科技研发中心,北京 100022
基金项目:

国家水体污染控制与治理科技重大专项(2015ZX07203-005)

国家自然科学基金资助项目(21777161,3,21777161)

国家重点研发计划(2016YFE0118500)

摘要: 基于计算流体力学(CFD)方法,使用Eulerian多相流模型,对500 m3·d-1的膜生物反应器中曝气管布置方式以及4种气水比(10∶1、15∶1、20∶1和25∶1)进行优化研究,通过对不同反应器构型内部流场、速度场和膜面液体流速进行分析比较,同时借助停留时间分布(RTD)实验对模拟结果进行实验验证。结果表明:曝气管“对齐”布置方式优于“间隔”和“垂直”布置；考虑膜面冲刷以及能耗方面,确定最佳气水比为20∶1,此时反应器内形成了循环流动,膜面冲刷效果比较好,低速区占比较小,对降低膜污染有很好的作用。

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