Biodegradation: Updating the Concepts of Control for Microbial Cleanup in Contaminated Aquifers
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 criti...
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| Veröffentlicht in: | Environmental science & technology 2015-06, Vol.49 (12), p.7073-7081 |
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| container_title | Environmental science & technology |
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| creator | Meckenstock, Rainer U Elsner, Martin Griebler, Christian Lueders, Tillmann Stumpp, Christine Aamand, Jens Agathos, Spiros N Albrechtsen, Hans-Jørgen Bastiaens, Leen Bjerg, Poul L Boon, Nico Dejonghe, Winnie Huang, Wei E Schmidt, Susanne I Smolders, Erik Sørensen, Sebastian R Springael, Dirk van Breukelen, Boris M |
| description | 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 the 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. |
| doi_str_mv | 10.1021/acs.est.5b00715 |
| format | Article |
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| subjects | Bacteria - metabolism Biodegradation, Environmental Electrons Groundwater - microbiology Oxidation-Reduction Water Pollutants, Chemical - analysis |
| title | Biodegradation: Updating the Concepts of Control for Microbial Cleanup in Contaminated Aquifers |
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