修正ASM-CFD耦合仿真在MBR运行及膜污染中的应用研究  

Application of Modified ASM-CFD Coupling Simulation in MBR Operation and Membrane Fouling

作　　者：杨漪帆[1] 俞亦政 王奇 马春燕[3] YANG Yi-fan;YU Yi-zheng;WANG Qi;MA Chun-yan(Shanghai Academy of Environmental Sciences,Shanghai 200233,China;China Textile Planning Research Association,Beijing 100020,China;Donghua University,Shanghai 201620,China)

机构地区：[1]上海市环境科学研究院,上海200233 [2]中国纺织规划研究会,北京100020 [3]东华大学,上海201620

出　　处：《环境科技》2019年第5期18-23,共6页Environmental Science and Technology

基　　金：国家科技重大专项：水体污染控制与治理（2017ZX07402-004）;上海市科学技术委员会科研项目：上海市水环境监测预警评估技术体系和决策支持平台研究与示范（17DZ1202500）;上海市生态环境局环保科研项目（沪环科[2018]第17号）;上海市水务局科研项目(沪水科2018-02)

摘　　要：以某生物制药污水处理设施的膜生物反应器(MBR)为研究对象,将修正活性污泥1号模型(ASM1)-计算流体力学(CFD)的耦合模型应用于模拟MBR的运行情况,考察了不同膜间距和曝气条件下膜表面污染情况。结果表明,在MBR中,将SMP参数加入ASM1模型,修正ASM1并与CFD耦合,对MBR运行情况的模拟和验证发现模拟结果更接近实际。膜间距由8mm扩大到10mm,增加了膜片间的流体空间,减低了膜组件的污染程度。对100~160m3/L的4个曝气强度进行模拟,模拟结果验证了曝气强度的强弱对膜污染的影响,随着曝气强度的增强,膜污染情况得到改善。Taking the membrane bioreactor(MBR) of a biopharmaceutical wastewater treatment facility as the research object, the coupled model of modified activated sludge No.1 model (ASM1)-computational fluid dynamics (CFD) was applied to simulate the operation of MBR.The membrane surface contamination under different membrane spacing and aeration conditions was simulated.The results show that in the MBR, the SMP parameters are added to the ASM1 model, and the coupling between ASM1 and CFD is modified.The simulation of the MBR operation is verified, and the simulation results are closer toreality.The membrane spacing is increased from 8mm to 10 mm, which increases the fluid space between the membranes and reduces the degree of contamination of the membrane module.The simulation results of the four aerations of 100 ~ 160 m3/L were carried out.The simulation results verified the influence of the intensity from the aeration on the membrane fouling.With the increase of the aeration intensity, the membrane fouling was improved.

关 键 词：计算流体力学 平板膜膜生物反应器 活性污泥模型 可溶性微生物产物 膜污染 

分 类 号：X5[环境科学与工程—环境工程]