Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Analysis of colloid transport

Journal Article · · Materials Research Society Symposia Proceedings
OSTI ID:59921
;
The population balance methodology is described and applied to the transport and capture of polydispersed colloids in packed columns. The transient model includes particle growth, capture, convective transport, and dispersion. The authors also follow the dynamic accumulation of captured colloids on the solids. The multidimensional parabolic partial differential equation was solved by a recently enhanced method of characteristics technique. This computational technique minimized numerical dispersion and is computationally very fast. The FORTRAN 77 code ran on a VAX-780 in less than a minute and also runs on an IBM-AT using the Professional FORTRAN compiler. The code was extensively tested against various simplified cases and against analytical models. The packed column experiments by Saltelli et al. were re-analyzed incorporating the experimentally reported size distribution of the colloid feed material. Colloid capture was modeled using a linear size dependent filtration function. The effects of a colloid size dependent filtration factor and various initial colloid size distributions on colloid migration and capture were investigated. Also, the authors followed the changing colloid size distribution as a function of position in the column. Some simple arguments are made to assess the likelihood of colloid migration at a potential NTS Yucca Mountain waste disposal site.
Research Organization:
Los Alamos National Lab., NM
OSTI ID:
59921
Report Number(s):
CONF-850995--
Journal Information:
Materials Research Society Symposia Proceedings, Journal Name: Materials Research Society Symposia Proceedings Vol. 50; ISSN 0272-9172; ISSN MRSPDH
Country of Publication:
United States
Language:
English

Similar Records

Analysis of colloid transport
Conference · Mon Dec 30 23:00:00 EST 1985 · OSTI ID:59183
Analysis of colloid transport
Conference · Sun Sep 01 00:00:00 EDT 1985 · OSTI ID:59978
Filtration of polydispersed colloids
Conference · Thu Dec 31 23:00:00 EST 1987 · OSTI ID:5532948

Related Subjects

05 NUCLEAR FUELS
54 ENVIRONMENTAL SCIENCES
CLAYS
MASS TRANSFER
RADIOACTIVE WASTE DISPOSAL
RADIOCOLLOIDS
RADIONUCLIDE MIGRATION
SAND
UNDERGROUND DISPOSAL
Yucca Mountain Project