| Tag |
First Indicator |
Second Indicator |
Subfields |
| LEADER |
00000ctm a22000005a 4500 |
| 001 |
in00001354313 |
| 005 |
20190325093258.0 |
| 008 |
970508s1996 xx a b 000 0 eng d |
| 035 |
|
|
|a (OCoLC)36874010
|
| 035 |
|
|
|9 AHG5157AM
|
| 037 |
|
|
|a 97-01698
|b UMI
|
| 040 |
|
|
|a TXA
|c TXA
|d UtOrBLW
|
| 049 |
|
|
|a TXAM
|a TXAR
|
| 099 |
|
|
|a 1996
|a Dissertation
|a N643
|
| 100 |
1 |
|
|a Noell, Alan Lee,
|d 1967-
|
| 245 |
1 |
0 |
|a Modeling and experimental validation of colloid facilitated cesium transport in porous media /
|c by Alan Lee Noell.
|
| 264 |
|
1 |
|a [Place of publication not identified] :
|b [publisher not identified] ;
|c 1996.
|
| 300 |
|
|
|a xviii, 149 leaves :
|b illustrations ;
|c 28 cm.
|
| 336 |
|
|
|a text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a unmediated
|b n
|2 rdamedia
|
| 338 |
|
|
|a volume
|b nc
|2 rdacarrier
|
| 504 |
|
|
|a Includes bibliographical references: pages 126-129.
|
| 500 |
|
|
|a Vita.
|
| 502 |
|
|
|b Ph. D.
|c Texas A&M University
|d 1996.
|
| 500 |
|
|
|a "Major Subject: Civil Engineering".
|
| 530 |
|
|
|a Issued also on microfiche from University Microfilms Inc.
|
| 520 |
|
|
|a Groundwater colloids can act as a vector which enhances the
|
| 520 |
|
|
|a migration of contaminants. In this study, an idealized
|
| 520 |
|
|
|a laboratory set-up was used to examine the influence of
|
| 520 |
|
|
|a amorphous silica colloids on the transport of cesium.
|
| 520 |
|
|
|a Synthetic groundwater and -saturated glass bead columns were
|
| 520 |
|
|
|a used to minimize the presence of natural colloidal material.
|
| 520 |
|
|
|a The columns were assembled in replicate, some packed with
|
| 520 |
|
|
|a 150-210 um glass beads and others packed with 355-420 Jim
|
| 520 |
|
|
|a glass beads. The colloids used in these experiments were 100
|
| 520 |
|
|
|a nm amorphous silica colloids from Nissan Chemical Company.
|
| 520 |
|
|
|a In independent batch sorption experiments, non-linear
|
| 520 |
|
|
|a Freundlich isotherms were found to best describe the sorption
|
| 520 |
|
|
|a of cesium to both silica colloids and glass beads. In the
|
| 520 |
|
|
|a absence of colloids, the retardation factor for cesium was
|
| 520 |
|
|
|a 8.0 in the 150-210 um glass bead columns and 3.6 in the 355-
|
| 520 |
|
|
|a 420 um glass bead columns. The influence of anthropogenic
|
| 520 |
|
|
|a colloids was tested by injecting 0.09 pore volume slug of an
|
| 520 |
|
|
|a equilibrated suspension of cesium and colloids into the
|
| 520 |
|
|
|a colloid-free columns. Although there was little noticeable
|
| 520 |
|
|
|a facilitation in the smaller glass bead columns, there was a
|
| 520 |
|
|
|a slight reduction in the retardation of cesium in the larger
|
| 520 |
|
|
|a glass bead columns. This was attributed to cesium having
|
| 520 |
|
|
|a less of a retention time in the larger glass bead columns.
|
| 520 |
|
|
|a When cesium was injected into columns with a constant flux of
|
| 520 |
|
|
|a colloids, the retardation of cesium was reduced by 14-32% in
|
| 520 |
|
|
|a the 150-210 um glass bead columns and by 38-51% in the 355-
|
| 520 |
|
|
|a 420 um glass bead columns. Models based on Coi-apcioglu and
|
| 520 |
|
|
|a Jiang [1993] were compared with the experimental elution
|
| 520 |
|
|
|a data. When equilibrium sorption expressions were used and
|
| 520 |
|
|
|a the flux of colloids through the glass bead columns was
|
| 520 |
|
|
|a constant , the colloid facilitated transport of cesium was
|
| 520 |
|
|
|a able to be described using an effective retardation
|
| 520 |
|
|
|a coefficient. Fully kinetic simulations) however, more
|
| 520 |
|
|
|a accurately described the colloid facilitated transport of
|
| 520 |
|
|
|a cesium.
|
| 650 |
|
4 |
|a Major civil engineering.
|
| 856 |
4 |
1 |
|u http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=739363601&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD
|t 0
|
| 999 |
|
|
|a MARS
|
| 999 |
f |
f |
|s 70184e8b-19d6-3737-a1bb-b93a5ff7e07c
|i f085ab7d-4974-3f0e-956a-f72255e58aba
|t 0
|
| 952 |
f |
f |
|p noncirc
|a Texas A&M University
|b College Station
|c Cushing Memorial Library & Archives
|s cush tdrm
|d Cushing: Theses & Dissertations Microforms (Does not check out)
|t 0
|e 1996 Dissertation N643
|h Other scheme
|i unmediated -- volume
|
| 952 |
f |
f |
|a Texas A&M University
|b College Station
|c Electronic Resources
|s www_evans
|d Available Online
|t 0
|e 1996 Dissertation N643
|h Other scheme
|
| 998 |
f |
f |
|a 1996 Dissertation N643
|t 0
|l Available Online
|
| 998 |
f |
f |
|a 1996 Dissertation N643
|t 0
|l Cushing: Theses & Dissertations Microforms (Does not check out)
|