VERTICAL-DISTRIBUTION AND PARTITIONING OF CHROMIUM IN A GLACIOFLUVIAL AQUIFER

被引：33

作者：

NIKOLAIDIS, NP

ROBBINS, GA

SCHERER, M

MCANINCH, B

BINKHORST, G

ASIKAINEN, J

SUIB, SL

机构：

[1] Department of Civil Engineering, University of Connecticut, Storrs, Connecticut

[2] Department of Geology, University of Connecticut, Storrs, Connecticut

来源：

GROUND WATER MONITORING AND REMEDIATION | 1994年 / 14卷 / 03期

关键词：

D O I：

10.1111/j.1745-6592.1994.tb00476.x

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

The vertical distribution and partitioning (between the solid and aqueous phase) of chromium in a glaciofluvial aquifer in northeastern Connecticut were assessed. Most of the chromium (99 percent of its mass) is bound to the soil. Retardation is primarily the result of binding to organic matter and adsorption to iron oxide coatings. However, other attenuation mechanisms also appear to be significant. If the degree of chromium binding observed here is representative of other chromium contaminated sites, pump-and-treat remediation will not remove the vast amount of chromium from the subsurface. However, most of the chromium may be immobile, and removal may not be required following the initial pumping to remove the mobile fraction. Further knowledge of the mechanisms that bind chromium to the soil, their reversibility, and their kinetics is essential to developing effective remediation strategies.

引用

页码：150 / 159

页数：10

共 29 条

[1]

Ainsworth C.C., Girvin D.C., Zachara J.M., Smith S.C., Chromium adsorption on goethite: Effect of aluminum substitution, Soil Sci. Soc. Am. J., 53, pp. 411-418, (1989)

[2]

Amacher M.C., Selim H.M., Iskandar I.K., Kinetics of chromium retention in soils: A nonlinear multireaction model, Soil Sci. Soc. Am. J., 52, pp. 398-408, (1988)

[3]

Asikainen J.M., Redox capacity analysis and heavy metal sequential extraction for site assessment of subsurface contamination, (1993)

[4]

Asikainen J.M., Nikolaidis N.P., Sequential extraction of chromium from contaminated aquifer sediment, Ground Water Monitoring and Remediation, 14, 2, pp. 185-191, (1994)

[5]

Barcelona M.J., Holm T.R., Oxidation‐reduction capacities of aquifer solids, Environ. Sci. Technol., 25, 9, pp. 1565-1572, (1991)

[6]

Barcelona M.J., Holm T.R., Schock M.R., George G.K., Spatial and temporal gradients in aquifer oxidation‐ reduction conditions, Water Resources Research, 25, 5, pp. 991-1003, (1989)

[7]

Bartlett R.J., James B., Behavior of chromium in soils: III. Oxidation, J. Environ. Qual., 8, pp. 31-35, (1979)

[8]

Charlet L., Manceau A.A., X‐ray absorption spectroscopic study of the sorption of Cr(III) at the oxide‐water interface. II. Adsorption, coprecipitation, and surface precipitation on hydrous ferric oxide, J. of Colloid and Interface Science, 148, 2, pp. 443-458, (1992)

[9]

Deng Y., Banwart S., Accumulation and remobilization of aqueous chromium (VI) at iron oxide surfaces: Application of a thin film continous flow through reactor. Proceedings of Migration '93, Charleston, South Carolina, 12–17 December, J. of Contaminant Hydrology, (1994)

[10]

Eary L.E., Rai D., Kinetics of chromate reduction by ferrous ions derived from hematite and biotite at 25°C, American Journal of Science, 289, pp. 180-213, (1989)

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