淡江大學機構典藏:Item 987654321/60355
English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 62805/95882 (66%)
造訪人次 : 3884644      線上人數 : 253
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧：
  • 您可在西文檢索詞彙前後加上"雙引號"，以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋，建議至進階搜尋限定作者欄位，可獲得較完整資料
    •  進階搜尋


    請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/60355


    題名: Effect of air-sparging on the cross-flow microfiltration of microbe/protein bio-suspension
    作者: Hwang, Kuo-Jen;Chen, Ling
    貢獻者: 淡江大學化學工程與材料工程學系
    關鍵詞: Cross-flow microfiltration;Air-sparging;Cake properties;Protein rejection;Bio-separation
    日期: 2010-09
    上傳時間: 2011-10-13 22:30:00 (UTC+8)
    出版者: Amsterdam: Elsevier BV
    摘要: The effect of air-sparging on the performance of cross-flow microfiltration of microbe/protein bio-suspension is studied. A yeast/BSA binary suspension is separated using a two-parallel-plate cross-flow microfilter. The pseudo-steady filtration flux, cake properties and BSA rejection under various operating conditions are measured and discussed. The filtration flux increases with increasing filtration pressure, suspension and air velocities. The cake mass is significantly reduced by sparging air bubbles due to the increase in wall shear stress; however, this impact becomes trivial when air velocity exceeds 0.04 m/s. The average specific cake filtration resistance increases with increasing air velocity in a bubble flow, while suddenly decreases when the flow pattern changes to a slug flow. A drastic increase in BSA rejection is found as air bubbles are sparged into the filter channel. An increase in air flow velocity leads to higher BSA rejection especially in a slug flow regime. Taking filtration flux and BSA rejection into account, the BSA mass flux transported into filtrate decreases with increasing air velocity. Although sparging air bubbles can effectively enhance filtration flux, it is helpless for the separation of BSA from yeast cells. The results also indicate that the fluid flow pattern plays an important role in determining the filtration performance. The cake mass and BSA rejection in different flow regimes can be modeled using a force balance model for particle deposition and the standard capture equation for depth filtration, respectively.
    關聯: Journal of the Taiwan Institute of Chemical Engineers 41(5), pp.564–569
    DOI: 10.1016/j.jtice.2009.12.005
    顯示於類別:[化學工程與材料工程學系暨研究所] 期刊論文

    文件中的檔案:

    檔案 大小格式瀏覽次數
    index.html0KbHTML286檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋