Effects of mixed-liquor rheology on vibration of hollow-fiber membrane via particle image velocimetry and computational fluid dynamics
文献类型：期刊论文
| 作者 | Yu, Dawei; Liu, Mengmeng ; Liu, Jibao; Zheng, Libing; Wei, Yuansong
|
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2020-05-15 |
| 卷号 | 239页码:1-9 |
| 关键词 | Vortex-induced vibration Hollow fiber membrane Mixed-liquor theology Specific flux Frequency Resonance |
| ISSN号 | 1383-5866 |
| 英文摘要 | Although vortex-induced vibration is widely observed, not only its characteristics but also its manipulation remains ambiguous. The effects of mixed-liquor rheology on vortex-induced vibration are investigated in a hollow-fiber MBR using particle image velocimetry (PIV) for observation and computational fluid dynamics (CFD) for modeling. Ply shows the vibration in the form of the Karmen vortex with amplify similar diameter. Further, CFD shows a lower Strouhal number (St, 0.149) at the optimized MISS 6305 mg.L-1 resulting similar vibration frequencies 1.89 +/- 0.20 Hz in 78.7% tank volume. The lower St 0.151 +/- 0.002 therefore increases resonance probability. The resonance doubled the shear force without extra energy input. A full scale MBR's permeability was used to test the assumption of optimizing shear force by vibration in rheology optimized mixed-liquor. The theoretically optimized MLSS 6305 mg.L-1 (5615 mgL(-1), practically) achieved the highest permeability. The accordance suggested that optimized MISS doubled the shear force by resonance of vortexinduced vibration within proper mixed-liquor rheology. The MBR's permeability is nearly doubled to 1.84 +/- 0.70 L m(-2) h(-1) kPa(-1) at the optimized MISS, and sustained longer period (similar to 3 months). |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45031]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Yu, Dawei,Liu, Mengmeng,Liu, Jibao,et al. Effects of mixed-liquor rheology on vibration of hollow-fiber membrane via particle image velocimetry and computational fluid dynamics[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2020,239:1-9. |
| APA | Yu, Dawei,Liu, Mengmeng,Liu, Jibao,Zheng, Libing,&Wei, Yuansong.(2020).Effects of mixed-liquor rheology on vibration of hollow-fiber membrane via particle image velocimetry and computational fluid dynamics.SEPARATION AND PURIFICATION TECHNOLOGY,239,1-9. |
| MLA | Yu, Dawei,et al."Effects of mixed-liquor rheology on vibration of hollow-fiber membrane via particle image velocimetry and computational fluid dynamics".SEPARATION AND PURIFICATION TECHNOLOGY 239(2020):1-9. |
入库方式： OAI收割
来源：生态环境研究中心
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