Colloid Transport through Natural Filter Media

被引：3
|
作者：
Jaradat, Aiman Q. [1 ]
Grimberg, Stefan J. [2 ]
Holsen, Thomas M. [2 ]
机构：
[1] Al Hussein Bin Talal Univ, Dept Environm Engn, Maan, Jordan
[2] Clarkson Univ, Dept Civil & Environm Engn, Potsdam, NY 13699 USA
来源：
JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE | 2009年 / 135卷 / 07期
关键词：
POROUS-MEDIA; DEPOSITION; PARTICLES; FILTRATION; SOIL; MOBILIZATION; CONTAMINANTS; GROUNDWATER; BACTERIA;
D O I：
10.1061/(ASCE)0733-9372(2009)135:7(544)
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this project the use of natural media filtration (NMF) was evaluated for its ability to remove colloidal particles from the aqueous phase as a function of ionic strength and filter media type by determining first-order kinetic deposition rate coefficients. Mushroom compost (MC) and leaf compost (LC) were tested as natural filter media and the results were compared to those obtained using sand and granular activated carbon (GAC). The highest deposition rate coefficients were observed for GAC, followed by LC and MC, and the lowest deposition rate coefficients were found for sand. As predicted by the Derjaguin-Landau-Verwey-Overbeek theory, higher deposition rates were obtained at higher solution ionic strengths. Overall the experiments suggest that the NMF process can efficiently remove colloidal particles from surface waters.
引用
收藏
页码：544 / 550
页数：7
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