Sorption distribution coefficients: Discrepancy between batch and column techniques

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Proper determination of sorption distribution coefficients of organic contaminants is essential for assessment of their transport in groundwater. This is usually determined from either a batch sorption isotherm or from a miscible displacement study through a soil column. Discrepancy between the results of the two techniques has been reported. The cause, however, is not clear and needs to be elucidated. In this paper, a all potential factors that cause discrepancy between the results of the two systems have been explored These factors are categorized into three groups: those related to fundamental differences between the two systems including levels of mixing, particle spacing, and soil-to-water ratio; those related to sorption nonideality including nonlinearity, nonsingularity, and nonequlibrium; and those related to experimental artifacts including loss of sorbent from soil columns, analytical difficulties, and unaccounted for transfer/transport mechanisms. Assessment of the impact of each factor on the extent of discrepancy is discussed.

Original languageEnglish
Title of host publicationGeoengineering in arid lands. Developments in arid regions research 1.
EditorsA.M.O. Mohamed, K.I. Hosani
Pages403-409
Number of pages7
Publication statusPublished - Dec 1 2000
Event40th Interscience Conference on Antimicrobial Agents and Chemotherapy -
Duration: Sep 17 2000Sep 20 2000

Publication series

NameGeoengineering in arid lands. Developments in arid regions research 1.

Other

Other40th Interscience Conference on Antimicrobial Agents and Chemotherapy
Period9/17/009/20/00

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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