| Correlation equation for predicting single-collector efficiency in physicochemical filtration in saturated porous media. | |
| | |
MedLine Citation:
|
PMID: 14750730 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
A new equation for predicting the single-collector contact efficiency (eta0) in physicochemical particle filtration in saturated porous media is presented. The correlation equation is developed assuming that the overall single-collector efficiency can be calculated as the sum of the contributions of the individual transport mechanisms--Brownian diffusion, interception, and gravitational sedimentation. To obtain the correlation equation, the dimensionless parameters governing particle deposition are regressed against the theoretical value of the single-collector efficiency over a broad range of parameter values. Rigorous numerical solution of the convective-diffusion equation with hydrodynamic interactions and universal van der Waals attractive forces fully incorporated provided the theoretical single-collector efficiencies. The resulting equation overcomes the limitations of current approaches and shows remarkable agreement with exact theoretical predictions of the single-collector efficiency over a wide range of conditions commonly encountered in natural and engineered aquatic systems. Furthermore, experimental data are in much closer agreement with predictions based on the new correlation equation compared to other available expressions. |
| | |
Authors:
|
Nathalie Tufenkji; Menachem Elimelech |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
|
Title: Environmental science & technology Volume: 38 ISSN: 0013-936X ISO Abbreviation: Environ. Sci. Technol. Publication Date: 2004 Jan |
Date Detail:
|
Created Date: 2004-01-30 Completed Date: 2004-04-22 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0213155 Medline TA: Environ Sci Technol Country: United States |
Other Details:
|
Languages: eng Pagination: 529-36 Citation Subset: IM |
Affiliation:
|
Department of Chemical Engineering, Environmental Engineering Program, P.O. Box 208286, Yale University, New Haven, Connecticut 06520-8286, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Colloids Filtration Forecasting Models, Theoretical* Particle Size Porosity Soil Pollutants / analysis* Water Pollutants / analysis* |
| Chemical | |
Reg. No./Substance:
|
0/Colloids; 0/Soil Pollutants; 0/Water Pollutants |
| Comments/Corrections | |
Comment In:
|
Environ Sci Technol. 2005 Jul 15;39(14):5494-5; author reply 5496-7
[PMID:
16082986
]
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Phenylpyrazole insecticide fipronil induces male infertility in the estuarine meiobenthic crustacean...
Next Document: Accumulation and toxicity of cadmium in the aquatic oligochaete Tubifex tubifex: a kinetic modeling ...