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Modeling hexavalent chromium reduction in groundwater in field-scale transport and laboratory batch experiments

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J.C. Friedly, J.A. Davis, and D.B. Kent, 1995, Modeling hexavalent chromium reduction in groundwater in field-scale transport and laboratory batch experiments: Water Resources Research, v. 31, iss. 11.

Summary

A plausible and consistent model is developed to obtain a quantitative description of the gradual disappearance of hexavalent chromium (Cr(VI)) from groundwater in a small-scale field tracer test and in batch kinetic experiments using aquifer sediments under similar chemical conditions. The data exhibit three distinct timescales. Fast reduction occurs in well-stirred batch reactors in times much less than 1 hour and is followed by slow reduction over a timescale of the order of 2 days. In the field, reduction occurs on a timescale of the order of 8 days. The model is based on the following hypotheses. The chemical reduction reaction occurs very fast, and the longer timescales are caused by diffusion resistance. Diffusion into the secondary [...]

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Type Scheme Key
local-index unknown 70185355
local-pk unknown 70185355
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1029/95WR02104
series unknown Water Resources Research

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journalWater Resources Research
parts
typevolume
value31
typeissue
value11
languageEnglish
citationTypeArticle

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