Main Title |
Transport of Inorganic Colloids through Natural Aquifer Material: Implications for Contaminant Transport. |
Author |
Puls, R. W. ;
Powell., R. M. ;
|
CORP Author |
Robert S. Kerr Environmental Research Lab., Ada, OK. ;ManTech Environmental Technology, Inc., Ada, OK. |
Publisher |
c1991 |
Year Published |
1991 |
Report Number |
EPA/600/J-92/113; |
Stock Number |
PB92-158690 |
Additional Subjects |
Colloids ;
Environmental transport ;
Water pollution ;
Aquifer characteristics ;
Inorganic compounds ;
Permeability ;
Porous media ;
Ground water ;
Tracer studies ;
Stability ;
Hydrogeology ;
Electrolytes ;
Particle size ;
pH ;
Flow rate ;
Ions ;
Iron oxides ;
Reprints ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB92-158690 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
10p |
Abstract |
The stability and transport of radiolabeled Fe2O3 particles were studied using laboratory batch and column techniques. Core material collected from a shallow sand and gravel aquifer was used as the immobile column matrix material. Variables in the study included flow rate, pH, ionic strength, electrolyte composition, particle concentration, and particle size. Transport was highly dependent upon colloidal stability. Iron oxide colloids were not only mobile to a significant extent, but under some hydrogeochemical conditions were transported faster than tritiated water, a conservative tracer. The extent of colloid breakthrough was dependent upon a variety of parameters; however, the highest statistical correlation was observed with particle size and anionic composition of the supporting electrolyte. Arsenate was utilized for assessment of colloid-contaminant and contaminant-aquifer interactions and comparison of dissolved and colloidally associated transport in dynamic model systems. The rate of colloid-associated arsenate transport was over 21 times that of the dissolved arsenate. (Copyright (c) 1992 American Chemical Society.) |
Supplementary Notes |
Pub. in Environmental Science and Technology, v26 n3 p614-621 1992. See also PB91-168419 and PB92-114503. Prepared in cooperation with ManTech Environmental Technology, Inc., Ada, OK. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Transport of Inorganic Colloids through Natural Aquifer Material: Implications for Contaminant Transport. |
Category Codes |
68D; 48G; 48F; 99F |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/15 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
212826502 |
Origin |
NTIS |
Type |
CAT |