Nonequilibrium sorption of organic chemicals by low organic-carbon aquifer materials

Mark L Brusseau, Mary E. Reid

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The objective of the work reported herein was to investigate nonequilibrium sorption of four representative organic chemicals by five aquifer materials comprised of low organic carbon (i.e., less than 0.1%). The results of miscible displacement experiments were analyzed using a one-dimensional advective-dispersive transport model, wherein sorption is considered instantaneous for a fraction of the sorbent and rate-limited for the remainder. An inverse correlation between the desorption rate constant and the equilibrium sorption constant was evident. It appears that all five aquifer materials exhibited similar nonequilibrium behavior, which suggests that the sorbent has only a secondary effect on the nature of nonequilibrium sorption. In addition, the data obtained for the aquifer materials were similar to data obtained for sorbents of higher organic-carbon contents.

Original languageEnglish (US)
Pages (from-to)341-350
Number of pages10
JournalChemosphere
Volume22
Issue number3-4
DOIs
StatePublished - 1991

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Organic Chemicals
Organic chemicals
Groundwater
Organic carbon
Aquifers
Sorption
Carbon
sorption
Sorbents
organic carbon
aquifer
Rate constants
Desorption
desorption
advection
chemical
material
experiment
Experiments
rate

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Nonequilibrium sorption of organic chemicals by low organic-carbon aquifer materials. / Brusseau, Mark L; Reid, Mary E.

In: Chemosphere, Vol. 22, No. 3-4, 1991, p. 341-350.

Research output: Contribution to journalArticle

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