Journal article
Pulsing of multiple nutrients as a strategy to achieve large biologically active zones during in situ carbon tetrachloride remediation
Computational geosciences, Vol.1(3), pp.271-288
09/1997
Handle:
https://hdl.handle.net/2376/115787
Abstract
When injecting nutrients during active bioremediation, various nutrient addition strategies can be employed in order to remediate the site at minimal expense. In particular, if more than one nutrient is required, a pulse addition strategy can be devised in which these nutrients are added as temporally separated pulses such that the biostimulated portion of the flow field can be maximized. In this manuscript, results of numerical simulations are reported which demonstrate this effect. Previously published kinetic expressions describing microbial growth and carbon tetrachloride degradation under denitrifying conditions are used in these simulations. The simulations indicate that volumetric treatment can be accomplished by injecting long duration nutrient pulses of different nutrients that are separated by a long period where only unamended water is injected. This strategy will cause the nutrient pulses to overlap at a considerable distance from the injection point, while maintaining concentrations that are high enough to ensure significantbiomass growth and contaminant destruction.
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Details
- Title
- Pulsing of multiple nutrients as a strategy to achieve large biologically active zones during in situ carbon tetrachloride remediation
- Creators
- Marlee Franzen - Chemical Engineering Department Washington State University Pullman WA 99164‐2710 USAJames Petersen - Chemical Engineering Department Washington State University Pullman WA 99164‐2710 USAT Clement - Bioprocessing Group Battelle Pacific Northwest National Laboratory Richland WA 99352 USABrian Hooker - Bioprocessing Group Battelle Pacific Northwest National Laboratory Richland WA 99352 USARodney Skeen - Bioprocessing Group Battelle Pacific Northwest National Laboratory Richland WA 99352 USA
- Publication Details
- Computational geosciences, Vol.1(3), pp.271-288
- Academic Unit
- Chemical Engineering and Bioengineering, School of
- Publisher
- Kluwer Academic Publishers; Dordrecht
- Identifiers
- 99900548147501842
- Language
- English
- Resource Type
- Journal article