Non-uniform distribution of adsorptive fouling along hollow fiber membrane: Characterization and quantification
文献类型：期刊论文
| 作者 | Wang, Xiaomao; Mu, Situ; Xiao, Kang; Fan, Huiju; Liu, Chun; Liang, Shuai; Xiao, Feng ; Huang, Xia
|
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2018-10-31 |
| 卷号 | 205页码:159-168 |
| 关键词 | Membrane fouling Hollow fiber membrane Geometric parameter Local flux distribution Adsorption model |
| ISSN号 | 1383-5866 |
| 文献子类 | Article |
| 英文摘要 | Non-uniform distribution of local flux along the hollow fiber (HF) membrane length poses a high risk of partially overloaded flux to exacerbate membrane fouling. In-depth analysis of its effect on fouling is critical to the design of membrane geometry (e.g. fiber length, inner and outer diameters). This study focused on HF membrane adsorptive fouling by soluble organic substances under the influence of local flux distribution. The non-uniform distribution of adsorbed foulant was experimentally observed via fluorescence and contact angle measurements. An HF-Thomas model was then developed to describe the dynamic adsorption process (free/adsorbed concentration as a function of time), by incorporating Langmuir and Linear adsorption kinetics into the hydrodynamics of the HF membrane lumen. The model fitting was found to be effective in determining the HF membrane adsorption parameters (equilibrium and rate constants) of typical polysaccharide, protein, and humic acid model compounds. Extended simulation was conducted using the HF-Thomas model to explore the impacts of local flux distribution on foulant mass transfer and adsorptive fouling distribution under different scenarios of membrane geometry. The non-uniformity of flux and adsorption was found to be markedly amplified by a comprehensive dimensionless factor, lambda l (which derives from fiber length, inner and outer diameters, and intrinsic filtration resistance). Therefore, lambda l may qualify as a critical parameter for HF membrane design. According to the results of this study, lambda l < 1 was recommended as a conservative criterion to secure relative uniformity from the perspective of adsorptive fouling. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41001]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Xiaomao,Mu, Situ,Xiao, Kang,et al. Non-uniform distribution of adsorptive fouling along hollow fiber membrane: Characterization and quantification[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2018,205:159-168. |
| APA | Wang, Xiaomao.,Mu, Situ.,Xiao, Kang.,Fan, Huiju.,Liu, Chun.,...&Huang, Xia.(2018).Non-uniform distribution of adsorptive fouling along hollow fiber membrane: Characterization and quantification.SEPARATION AND PURIFICATION TECHNOLOGY,205,159-168. |
| MLA | Wang, Xiaomao,et al."Non-uniform distribution of adsorptive fouling along hollow fiber membrane: Characterization and quantification".SEPARATION AND PURIFICATION TECHNOLOGY 205(2018):159-168. |
入库方式： OAI收割
来源：生态环境研究中心
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