Subscribed Content Calcium Carbonate Precipitation by Ureolytic Subsurface Bacteria

Fujita, Yoshiko; Ferris, F. G.; Lawson, R.D.; Colwell, Frederick S.; Smith, Robert W.

doi:10.1080/782198884

Cited by 306 publications

(221 citation statements)

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“…An obvious example is microbial calcite precipitation [Fortin et al, 1997], e.g., bacterial hydrolysis of urea [Fujita et al, 2000]. Here, we report on measurements of s b made during microbially-mediated reduction of selenite [Se 4+ , SeO 3 2À ] and resulting precipitation of elemental selenium [Se 0 ].…”

Section: Introductionmentioning

confidence: 99%

Geoelectrical measurement and modeling of biogeochemical breakthrough behavior during microbial activity

Slater¹,

Day‐Lewis²,

Ntarlagiannis³

et al. 2009

Geophysical Research Letters

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[1] We recorded bulk electrical conductivity (s b ) along a soil column during microbially-mediated selenite oxyanion reduction. Effluent fluid electrical conductivity and early time s b were modeled according to classic advectivedispersive transport of the nutrient medium. However, s b along the column exhibited strongly bimodal breakthrough which cannot be explained by changes in the electrical conductivity of the pore fluid. We model the anomalous breakthrough by adding a conduction path in parallel with the fluid phase, with a time dependence described by a microbial population-dynamics model. We incorporate a delay time to show that breakthrough curves along the column satisfy the same growth model parameters and offer a possible explanation based on biomass-limited growth that is delayed with distance from influent of the nutrient medium. Although the mechanism causing conductivity enhancement in the presence of biomass is uncertain, our results strongly suggest that biogeochemical breakthrough curves have been captured in geoelectrical datasets.

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Section: Introductionmentioning

confidence: 99%

Geoelectrical measurement and modeling of biogeochemical breakthrough behavior during microbial activity

Slater¹,

Day‐Lewis²,

Ntarlagiannis³

et al. 2009

Geophysical Research Letters

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“…Urea hydrolyzing bacteria are widespread in the environment (Mobley and Hausinger, 1989;Fujita et al, 2000), and therefore an in situ remediation scheme based on urea hydrolysis is not likely to require the introduction of foreign microorganisms. The subsurface hydrolysis of urea offers the additional benefit of producing ammonium which can exchange for sorbed strontium and other metals (as well as calcium) on aquifer solids, resulting in their enhanced susceptibility to subsequent capture via a more permanent immobilization mechanism, in this case coprecipitation in calcite.…”

Section: Introductionmentioning

confidence: 99%

“…Specifically, we wanted to quantify the distribution coefficient of Sr in calcite generated by bacterial ureolysis, and compare it to values reported for Sr in natural calcites or calcites generated synthetically by methods other than ureolysis. We hypothesized that the distribution coefficients for Sr in ureolytically generated calcites would be higher than in typical natural calcites, since rapid calcite precipitation can be induced by ureolysis (Stocks-Fischer et al, 1999;Fujita et al, 2000;Warren et al, 2001). Previous researchers have linked greater Sr incorporation to faster calcite precipitation (see following section), and we wanted to know whether this correlation was also applicable to ureolytically generated calcite.…”

Section: Introductionmentioning

confidence: 99%

Strontium incorporation into calcite generated by bacterial ureolysis

Fujita

Redden

Ingram

et al. 2004

Geochimica et Cosmochimica Acta

214

141

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Abstract-Strontium incorporation into calcite generated by bacterial ureolysis was investigated as part of an assessment of a proposed remediation approach for 90 Sr contamination in groundwater. Urea hydrolysis produces ammonium and carbonate and elevates pH, resulting in the promotion of calcium carbonate precipitation. Urea hydrolysis by the bacterium Bacillus pasteurii in a medium designed to mimic the chemistry of the Snake River Plain Aquifer in Idaho resulted in a pH rise from 7.5 to 9.1. Measured average distribution coefficients (D EX ) for Sr in the calcite produced by ureolysis (0.5) were up to an order of magnitude higher than values reported in the literature for natural and synthetic calcites (0.02-0.4). They were also higher than values for calcite produced abiotically by ammonium carbonate addition (0.3). The precipitation of calcite in these experiments was verified by X-ray diffraction. Time-of-flight secondary ion mass spectrometry (ToF SIMS) depth profiling (up to 350 nm) suggested that the Sr was not merely sorbed on the surface, but was present at depth within the particles. X-ray absorption near edge spectra showed that Sr was present in the calcite samples as a solid solution. The extent of Sr incorporation appeared to be driven primarily by the overall rate of calcite precipitation, where faster precipitation was associated with greater Sr uptake into the solid. The presence of bacterial surfaces as potential nucleation sites in the ammonium carbonate precipitation treatment did not enhance overall precipitation or the Sr distribution coefficient. Because bacterial ureolysis can generate high rates of calcite precipitation, the application of this approach is promising for remediation of 90 Sr contamination in environments where calcite is stable over the long term.

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“…This kind of carbonate precipitation is often associated with pathway of the nitrogen cycle, especially ammonification of amino acids, nitrate reduction and urea degradation [7]. However, the exact role of bacteria in this process remains unclear.…”

Section: Introduction and Resultsmentioning

confidence: 99%

Complete Genome Sequence of Brevibacterium linens BS258, a Potential Marine Actinobacterium for Environmental Remediation via Microbially Induced Calcite Precipitation

Zhu¹,

Wu²,

Suna³

2016

J Oceanogr Mar Res

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Subscribed Content Calcium Carbonate Precipitation by Ureolytic Subsurface Bacteria

Cited by 306 publications

References 0 publications

Geoelectrical measurement and modeling of biogeochemical breakthrough behavior during microbial activity

Geoelectrical measurement and modeling of biogeochemical breakthrough behavior during microbial activity

Strontium incorporation into calcite generated by bacterial ureolysis

Complete Genome Sequence of Brevibacterium linens BS258, a Potential Marine Actinobacterium for Environmental Remediation via Microbially Induced Calcite Precipitation

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