查詢結果分析
相關文獻
- 電場濾餅過濾機構之分析
- 應用脈衝電場電泳與其他分子型別法分析第二型豬鏈球菌分離株
- 利用脈衝電場電泳法和莢膜血清分型法研究二位血液腫瘤患者的復發性Klebsiella pneumoniae菌血症
- Longitudinal Analysis of Methicillin Resistant Staphylococcus Aureus Isolates at a Teaching Hospital in Taiwan
- 以脈衝電場電泳法分析3株院內血流感染的Acinetobacter Baumannii
- Pulsed-field Gel Electrophoresis, Specific Detection using PCR, and Antibiotic Resistance Patterns of Salmonella enteritidis Isolated in Taiwan, 1992-1998
- 泥漿床電滲透脫水特性
- 以脈動電場膠體電泳分離大分子DNA
- 綠能科技研究之微藻電穿孔裂解技術發展現況分析
- 微粒子導電度量測與其在介電泳晶片上的應用
頁籤選單縮合
題 名 | 電場濾餅過濾機構之分析=Fundamental Study of Electro-Cake Filtration |
---|---|
作 者 | 莊清榮; 曾盈崇; | 書刊名 | 中原學報 |
卷 期 | 29:1 2001.03[民90.03] |
頁 次 | 頁21-30 |
分類號 | 460.024 |
關鍵詞 | 濾餅過濾; 電場; 電泳; 電滲透; Cake filtration; Electric field; Electro-phoresis; Electroosmosis; |
語 文 | 中文(Chinese) |
中文摘要 | 電場過濾迄今未被工業界重視的原因之一是對其過濾機構瞭解仍很有限。為究明電泳與電滲透於該過濾中所扮演的角色,本研究先進行恆機械壓差過濾實驗,分析電場強度對濾速、過濾比阻及孔隙度等的影響,並建立電場過濾方程式,其所預估之濾速在定量上接近於實驗結果。 除由實驗量測填充床與濾餅之電滲透壓外,本文亦建立填充床電滲透之理論模式,其預估之電滲透速率與實驗結果甚一致。經由濾餅內電滲透模擬,顯示在濾餅表層處電滲透壓甚小,而在接近濾材處(堆積最密)則約隨距離主線性增加。經比較濾餅與填充床之電滲透結果,發現濾餅之電滲透速率控制於近濾材最為緻密濾餅層之電滲透作用。 |
英文摘要 | One of the reasons for that the electro-filtration has not yet received wide acceptance in industries is an inadequate knowledge at the process. The research studied the influences of electric field on the filtration rate, average specific filtration resistance of cake and the electroosmotic pressure etc. by conducting experiments in constant hydraulic pressure electro-filtration. Theoretical analysis for predicting the filtration rate was also performed and showed results agree with the experimental data. Itwas concluded that in the case of filtering suspensions with high zeta potential, the increase of filtration rate is almost due to the contibution of electrophoretic migration of particles away from the septum. The electroosmosis theory in a capillary was modified to yield expressions for predicting the electroosmotic flow rate in packed beds. The prediction was confirmed by the experimental data. Electroosmosis in cakes was also analyzed and showed at the electroosmotic flow rate through cake is controlled by the local porosity and electric field strength at the highly compressed cake layer near the filter media. |
本系統中英文摘要資訊取自各篇刊載內容。