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Performance of the In Situ Microcosm Technique for Measuring the Degradation of Organic Chemicals in Aquifers
Author(s) -
Nielsen Per H.,
Christensen Thomas H.,
Albrechtsen HansJørgen,
Gillham Robert W.
Publication year - 1996
Publication title -
groundwater monitoring and remediation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 47
eISSN - 1745-6592
pISSN - 1069-3629
DOI - 10.1111/j.1745-6592.1996.tb00580.x
Subject(s) - microcosm , aquifer , environmental science , degradation (telecommunications) , redox , environmental chemistry , groundwater , environmental engineering , soil science , materials science , chemistry , geology , geotechnical engineering , engineering , electrical engineering , metallurgy
An in situ microcosm (ISM) consists of a stainless steel cylinder isolating about 2 L of the aquifer and is equipped with valves allowing for loading and sampling from the ground surface. During the last five years, this technique has been used frequently to study the degradation of organic chemicals in polluted and pristine aquifers representing different redox environments. The ISM technique has great potential for providing field‐relevant degradation potentials and rate constants, but care must be taken in using the equipment and interpreting the results. This paper provides details concerning the installation and operation of an ISM and presents experiences concerning data interpretation and monitoring of redox conditions.