CFD simulation and optimization of membrane scouring and nitrogen removal for an airlift external circulation membrane bioreactor
文献类型：期刊论文
| 作者 | Yang, Min; Wei, Yuansong; Zheng, Xiang; Wang, Fang; Yuan, Xing; Liu, Jibao; Luo, Nan; Xu, Rongle; Yu, Dawei; Fan, Yaobo |
| 刊名 | BIORESOURCE TECHNOLOGY
 |
| 出版日期 | 2016-11 |
| 卷号 | 219期号:0页码:566-575 |
| 关键词 | Membrane bioreactor Oxygen mass transfer Activated sludge model Computational fluid dynamics Particle image velocimetry |
| 英文摘要 | Cost-effective membrane fouling control and nitrogen removal performance are of great concern in airlift external circulation membrane bioreactors (AEC-MBRs). Computational fluid dynamics (CFD) model incorporating sub-models of bio-kinetics, oxygen transfer and sludge rheology was developed for the cost-effective optimization of a lab-scale AEC-MBR. The model was calibrated and validated by extensive measurements of water velocities and water quality parameters in the AEC-MBR. The validated results demonstrated that the optimized height of gas-liquid dispersion was at around 300 mm. The shear stress on membrane surface was equalized and had an average value of 1.2 Pa under an air flowrate of 1.0 m(3) h(-1). The model further revealed that the high nitrogen removal efficiency (> 90%) was achieved due to the high recirculation ratio driven by airlift force without destroying the oxygen deprivation and enrichment in the anoxic and oxic zone, respectively. (C) 2016 Published by Elsevier Ltd. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36015]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yang, Min,Wei, Yuansong,Zheng, Xiang,et al. CFD simulation and optimization of membrane scouring and nitrogen removal for an airlift external circulation membrane bioreactor[J]. BIORESOURCE TECHNOLOGY,2016,219(0):566-575. |
| APA | Yang, Min.,Wei, Yuansong.,Zheng, Xiang.,Wang, Fang.,Yuan, Xing.,...&Fan, Yaobo.(2016).CFD simulation and optimization of membrane scouring and nitrogen removal for an airlift external circulation membrane bioreactor.BIORESOURCE TECHNOLOGY,219(0),566-575. |
| MLA | Yang, Min,et al."CFD simulation and optimization of membrane scouring and nitrogen removal for an airlift external circulation membrane bioreactor".BIORESOURCE TECHNOLOGY 219.0(2016):566-575. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。