標題: Collision efficiencies of algae and kaolin in depth filter: The effect of surface properties of particles
作者: Huang, CP
Pan, JRS
Huang, SH
環境工程研究所
Institute of Environmental Engineering
關鍵字: filtration;algae;kaolin;collision efficiency;zeta potential
公開日期: 1-四月-1999
摘要: Column filtration experiments with 2 mm-Phi glass beads were conducted to investigate the behavior of colloids during filtration. Algae and kaolin were used as model particles, while the chemical system was altered by changing the electrolyte concentration and pH. The collision efficiencies from the interaction between colloids and the filter medium were calculated with a semi-empirical approach of the single sphere model and clean-bed filtration theory. The experimental results indicate that ionic strength enhance the removal efficiencies for both algae and kaolin particles significantly. The removal efficiency of the filter for algae decreased with the increase in pH for up to pH 6. No significant change was observed beyond pH 6. Removal efficiencies for kaolin decreased with an increase in pH. It is concluded that collision efficiencies are sensitive to ion strength and pH. (C) 1999 Elsevier Science Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/S0043-1354(98)00309-1
http://hdl.handle.net/11536/31415
ISSN: 0043-1354
DOI: 10.1016/S0043-1354(98)00309-1
期刊: WATER RESEARCH
Volume: 33
Issue: 5
起始頁: 1278
結束頁: 1286
顯示於類別:期刊論文


文件中的檔案:

  1. 000079011300020.pdf