| Main Title |
CHEMFLO : one-dimensional water and chemical movement in unsaturated soils / |
| Author |
Nofziger, D. L. ;
Rajender, K. ;
Nayudu, S. K.
|
| Other Authors |
|
| CORP Author |
Oklahoma State Univ., Stillwater. Dept. of Agronomy.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
| Publisher |
U.S. Environmental Protection Agency, |
| Year Published |
1989 |
| Report Number |
EPA/600/8-89/076; EPA-R-812808 |
| Stock Number |
PB90-126020 |
| OCLC Number |
20771284 |
| Subjects |
Water--Movements
|
| Additional Subjects |
Unsaturation ;
Soil properties ;
One dimensional flow ;
Decision making ;
Environmental transport ;
Mathematical models ;
Convection ;
Dispersing ;
Graphs(Charts) ;
Manuals ;
Boundaries ;
Chemicals
|
| Internet Access |
|
| Local Library Info |
| Library |
Local Subject |
Local Note |
| EKB |
|
EKB copy contains errata sheet stapled to inside back cover. |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EHAM |
S592.5.C4 1989 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
| EJBD ARCHIVE |
EPA 600-8-89-076 |
|
Headquarters Library/Washington,DC |
09/19/2011 |
| EJED |
EPA 600/8-89-076 |
|
OCSPP Chemical Library/Washington,DC |
04/06/1990 |
| EKBD |
EPA-600/8-89-076 |
|
Research Triangle Park Library/RTP, NC |
04/23/2004 |
| ELBD ARCHIVE |
EPA 600-8-89-076 |
|
AWBERC Library/Cincinnati,OH |
03/29/2023 |
| EMBD |
EPA/600/8-89/076 |
|
NRMRL/GWERD Library/Ada,OK |
02/17/1995 |
| ESAD |
EPA 600-8-89-076 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB90-126020 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
v, 106 pages |
| Abstract |
An interactive software system was developed to enable decision-makers, regulators, policy-makers, scientists, consultants, and students to simulate the movement of water and chemicals in unsaturated soils. Water movement is modeled using Richards (1931) equation. Chemical transport is modeled by means of the convection-dispersion equation. These equations are solved numerically for one-dimensional flow and transport using finite differences. Results of the water model can be displayed in the form of graphs of water content, matric potential, driving force, conductivity, and flux density of water versus distance or time. Graphs of concentration, and flux density of chemical as functions of distance or time can also be displayed. |
| Notes |
"EPA/600/8-89/076." "August 1989." "Project Officer J.R. Williams." "Office of Research and Development." "Robert S. Kerr Environmental Research Laboratory." Includes bibliographical references (page 104). |
