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Biodegradation: Updating the concepts of control for microbial clean-up in contaminated aquifers.
Environ. Sci. Technol. 49, 7073-7081 (2015)
Biodegradation is one of the most favored and sustainable means of removing organic pollutants from contaminated aquifers but the major steering factors are still surprisingly poorly understood. Growing evidence questions some of the established concepts for control of biodegradation. Here, we critically discuss classical concepts such as the thermodynamic redox zonation, or the use of steady state transport scenarios for assessing biodegradation rates. Furthermore, we discuss if absence of specific degrader populations can explain poor biodegradation. We propose updated perspectives on the controls of biodegradation in contaminant plumes. These include the plume fringe concept, transport limitations, and transient conditions as currently underestimated processes affecting biodegradation.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Reductive Dehalogenase Genes; Landfill Leachate Plume; In-situ Bioremediation; Pore-water Velocity; Anoxic Paddy Soil; Natural Attenuation; Mass-transfer; Geobacter-metallireducens; Biogeochemical Gradients; Field Demonstration
ISSN (print) / ISBN
0013-936X
e-ISSN
1520-5851
Quellenangaben
Volume: 49,
Issue: 12,
Pages: 7073-7081
Publisher
ACS
Publishing Place
Washington, DC
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Groundwater Ecology (IGOE)