Abstract
Several processes can cause nonideal behavior, including physical nonequilibrium, chemical nonequilibrium, intrasorbent diffusion, spatial variations in sorption coefficient, and spatial variability in hydraulic conductivity. Nonideality can be investigated with an analysis of data gathered from a recent natural gradient field experiment at Borden, Ontario. The nonideal behavior exhibited by the field data appears to result from spatial variability in hydraulic conductivity and sorption coefficients. The relative impact of the nonideality mechanisms can be qualitatively evaluated by comparing the effective dispersivity values associated with each process. The relative importance of the processes are scale dependent. Given the typical heterogeneous nature of most aquifer systems, and the manner in which water samples are usually taken (vertically-integrated), macrodispersion is most likely to be the predominant process influencing contaminant dispersion at the field scale. -from Authors
| Original language | English (US) |
|---|---|
| Title of host publication | Contaminant transport in groundwater. Proc. symposium, Stuttgart, 1989 |
| Editors | H.E. Kobus, W. Kinzelbach |
| Publisher | Balkema; IAHR/AIRH Proceedings, 3 |
| Pages | 237-244 |
| Number of pages | 8 |
| State | Published - 1989 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Environmental Science(all)
Cite this
Nonequilibrium and dispersion during transport of contaminants in groundwater : field-scale processes. / Brusseau, Mark L; Rao, P. S C.
Contaminant transport in groundwater. Proc. symposium, Stuttgart, 1989. ed. / H.E. Kobus; W. Kinzelbach. Balkema; IAHR/AIRH Proceedings, 3, 1989. p. 237-244.Research output: Chapter in Book/Report/Conference proceeding › Chapter
}
TY - CHAP
T1 - Nonequilibrium and dispersion during transport of contaminants in groundwater
T2 - field-scale processes
AU - Brusseau, Mark L
AU - Rao, P. S C
PY - 1989
Y1 - 1989
N2 - Several processes can cause nonideal behavior, including physical nonequilibrium, chemical nonequilibrium, intrasorbent diffusion, spatial variations in sorption coefficient, and spatial variability in hydraulic conductivity. Nonideality can be investigated with an analysis of data gathered from a recent natural gradient field experiment at Borden, Ontario. The nonideal behavior exhibited by the field data appears to result from spatial variability in hydraulic conductivity and sorption coefficients. The relative impact of the nonideality mechanisms can be qualitatively evaluated by comparing the effective dispersivity values associated with each process. The relative importance of the processes are scale dependent. Given the typical heterogeneous nature of most aquifer systems, and the manner in which water samples are usually taken (vertically-integrated), macrodispersion is most likely to be the predominant process influencing contaminant dispersion at the field scale. -from Authors
AB - Several processes can cause nonideal behavior, including physical nonequilibrium, chemical nonequilibrium, intrasorbent diffusion, spatial variations in sorption coefficient, and spatial variability in hydraulic conductivity. Nonideality can be investigated with an analysis of data gathered from a recent natural gradient field experiment at Borden, Ontario. The nonideal behavior exhibited by the field data appears to result from spatial variability in hydraulic conductivity and sorption coefficients. The relative impact of the nonideality mechanisms can be qualitatively evaluated by comparing the effective dispersivity values associated with each process. The relative importance of the processes are scale dependent. Given the typical heterogeneous nature of most aquifer systems, and the manner in which water samples are usually taken (vertically-integrated), macrodispersion is most likely to be the predominant process influencing contaminant dispersion at the field scale. -from Authors
UR - http://www.scopus.com/inward/record.url?scp=0024531553&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024531553&partnerID=8YFLogxK
M3 - Chapter
AN - SCOPUS:0024531553
SP - 237
EP - 244
BT - Contaminant transport in groundwater. Proc. symposium, Stuttgart, 1989
A2 - Kobus, H.E.
A2 - Kinzelbach, W.
PB - Balkema; IAHR/AIRH Proceedings, 3
ER -