| Main Title |
Facilitated transport of inorganic contaminants in ground water. Part II, Colloidal transport / |
| Author |
Puls, R. W. ;
Powell, R. M. ;
Clark, D. A. ;
Paul, C. J.
|
| Other Authors |
|
| CORP Author |
Robert S. Kerr Environmental Research Lab., Ada, OK. ;ManTech Environmental Technology, Inc., Ada, OK. |
| Publisher |
U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Laboratory, |
| Year Published |
1991 |
| Report Number |
EPA/600-M-91-040 |
| Stock Number |
PB92-114503 |
| OCLC Number |
24817085 |
| Subjects |
Groundwater--Pollution--Arizona ;
Groundwater--Pollution--Maine ;
Groundwater--Pollution--North Carolina ;
Water, Underground--Pollution--Arizona
|
| Additional Subjects |
Water pollution sampling ;
Inorganic compounds ;
Environmental transport ;
Colloids ;
Ground water ;
Field tests ;
Geochemistry ;
Tracer techniques ;
Water flow ;
Desorption ;
Adsorption ;
Path of pollutants ;
Samples ;
Particle size ;
Experimental design ;
Electrolytes ;
pH ;
Flow rate
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAM |
TD403EPA 600 M-91-040 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
| EJBD |
EPA 600-M-91-040 |
c.1 |
Headquarters Library/Washington,DC |
05/02/2014 |
| ELBD ARCHIVE |
EPA 600-M-91-040 |
In Binder Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 600-M-91-040 |
repository copy |
AWBERC Library/Cincinnati,OH |
10/17/2014 |
| EMBD |
EPA/600/M-91/040 |
|
NRMRL/GWERD Library/Ada,OK |
06/27/2003 |
| NTIS |
PB92-114503 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
12 pages : illustrations ; 28 cm. |
| Abstract |
The project entailed both field and laboratory components. Field studies evaluated routine sampling procedures for determination of aqueous inorganic geochemistry and assessment of contaminant transport by colloidal mobility. Research at three different metal-contaminated sites has shown that 0.45 micrometer filtration has not removed potentially mobile colloids, when samples have been collected using low pumping flow rates (approximately 0.2-0.3 L/min). However, when pumping velocities greatly exceed formation groundwater flow velocities, large differences between filtered and unfiltered samples are observed, and neither are representative of values obtaine with the llow flow-rate pumped samples. In controlled laboratory experiments, the stability and transport of radio-labeled Fe2O3 model colloids were studied using batch and column techniques. Variables in the study included flow rate, pH, ionic strength, electrolyte composition (anion/cation), colloid concentration, and colloid size. Iron oxide colloids in the 100-900 nm particle diameter range were not only mobile to a significant extent, but under some hydrogeochemical conditions were transported faster than a conservative tracer, tritium. Particle size and anionic composition together with particle stability provided the highest statistical correlation governing extent of colloidal transport. The rate of colloid-arsenate transport was over 21 times that of the dissolved arsenate. |
| Notes |
Caption title. Shipping list no.: 91-586-P. "July 1991." Includes bibliographical references (pages 11-12). "EPA/600-M-91-040." |
| Place Published |
Ada, OK |
| Supplementary Notes |
See also PB91-168419. Prepared in cooperation with ManTech Environmental Technology, Inc., Ada, OK. |
| Access Notes |
Also issued online. |
| Corporate Au Added Ent |
Robert S. Kerr Environmental Research Laboratory. |
| Title Ser Add Ent |
Environmental research brief. |
| Alternate Title |
Colloidal transport |
| PUB Date Free Form |
1991 |
| Series Title Traced |
Environmental research brief |
| Series Title Untraced |
Environmental research brief |
| Ti Tra Differently |
Colloidal transport. |
| NTIS Prices |
PC A03/MF A01 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20160419144237 |
| Language |
eng |
| SUDOCS Number |
EP 1.96:600/M-91/040 |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
02039cam 2200481Ia 45020 |
