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dc.contributor.authorGerlach, Robin
dc.contributor.authorSteiof, Martin
dc.contributor.authorZhang, Chunlong
dc.contributor.authorHughes, Joseph B.
dc.identifier.citationGerlach, R., M. Steiof, C. Zhang, J. B. Hughes, “Low Aqueous Solubility Electron Donors for the Reduction of Nitroaromatics in Anaerobic Sediments,” Journal of Contaminant Hydrology 36: no. 1-2 (February 1999): 91–104.en_US
dc.description.abstractStudies are presented investigating the ability to enhance aryl nitro-reduction processes in sediments through electron donor addition. In particular, high molecular weight starch and guar gum. andror low aqueous solubility electron donors oleic acid. were studied, since they should be less prone to diffusive loss to the water column after addition to contaminated areas. For comparison, complimentary studies were conducted with water-soluble electron donors acetate and dextrose.. The ability to enhance activity was measured by methane production and reduction of either nitrobenzene or 1,3,5-trinitrobenzene to aniline or dinitroaniline. The results demonstrate that all electron donors resulted in increased methane production after a lag phase. The highest level of methane production and the shortest lag phase in uncontaminated sediment microcosms was observed in acetate-fed systems. Sorption studies of all electron donors showed that starch was partitioning the least into the water phase. In microcosms containing nitrobenzene, trinitrobenzene and acetate, methane production did not occur and nitro-reduction was not observed. Conversely, the addition of dextrose or starch yielded methane production and aryl nitro-reduction with each contaminant tested. Neither nitrobenzene nor trinitrobenzene was significantly reduced in HgCl2-killed controls. From these studies, it appears that starch may be well suited for applications of in-place, anaerobic sediment bioremediation. q1999 Elsevier Science B.V. All rights reserved.en_US
dc.titleLow aqueous solubility electron donors for the reduction of nitroaromatics in anaerobic sedimentsen_US
mus.citation.journaltitleJournal of Contaminant Hydrologyen_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCenter for Biofilm Engineering.en_US
mus.relation.departmentChemical & Biological Engineering.en_US
mus.relation.departmentChemical Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupCenter for Biofilm Engineering.en_US

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