Darcy‐scale modeling of microbially induced carbonate mineral precipitation in sand columns

Ebigbo, Anozie; Phillips, Adrienne J.; Gerlach, Robin; Helmig, Rainer; Cunningham, Alfred B.; Class, Holger; Spangler, Lee H.

doi:10.1029/2011wr011714

Cited by 121 publications

(173 citation statements)

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“…The sources and sinks due to reactions q κ and q λ are specific to the components κ and λ and given in the Online Resources, Table 2; for further details, see Hommel et al (2015) or Ebigbo et al (2012). As both calcite and attached biomass occupy space within the pores, the volume available for fluid flow is reduced, decreasing both porosity and permeability.…”

Section: Model Conceptmentioning

confidence: 99%

“…The conceptual model for MICP used in this study follows the model published by Ebigbo et al (2012) and revised by Hommel et al (2015). It accounts for two-phase multi-component reactive transport on the continuum scale, including biofilm (f) and calcite (c) as immobile phases.…”

Section: Model Conceptmentioning

confidence: 99%

“…Three sets of duplicate column experiments were carried out, including (1) initial attachment during injection, (2) attachment over an 8 h no-flow period, and (3) attachment and biofilm growth over 24 h. The six columns were constructed using clear PVC pipes of 61 cm length and 2.54 cm inner diameter, which were filled with 40 mesh quartz sand (0.5 mm effective filtration size, manufacturer information, Unimin Corp., Emmet, ID, identical to the sand used for the experiments described in Ebigbo et al (2012); Hommel et al (2015), packed under water and vertically positioned. They were inoculated simultaneously with 300 ml (two pore volumes) of cell suspension of identical cell concentration of S. pasteurii 3.2 × 10 7 CFU ml at a flow rate of 10 ml min in an upflow configuration.…”

Section: Preliminary Experimentsmentioning

confidence: 99%

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Investigating the Influence of the Initial Biomass Distribution and Injection Strategies on Biofilm-Mediated Calcite Precipitation in Porous Media

et al. 2015

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Attachment of bacteria in porous media is a complex mixture of processes resulting in the transfer and immobilization of suspended cells onto a solid surface within the porous medium. Quantifying the rate of attachment is difficult due to the many simultaneous processes possibly involved in attachment, including straining, sorption, and sedimentation, and the difficulties in measuring metabolically active cells attached to porous media. Preliminary experiments confirmed the difficulty associated with measuring active Sporosarcina pasteurii cells attached to porous media. However, attachment is a key process in applications of biofilm-mediated reactions in the subsurface such as microbially induced calcite precipitation. Independent of the exact processes involved, attachment determines both the distribution and the initial amount of attached biomass and as such the initial reaction rate. As direct experimental investigations are difficult, this study is limited to a numerical investigation of the effect of various initial biomass distributions and initial amounts of attached biomass. This is performed for various injection strategies, changing the injection rate as well as alternating between continuous and pulsed injections. The results of this study indicate that, for the selected scenarios, both the initial amount and the distribution of attached biomass have minor influence on the Ca 2+ precipitation efficiency as well as the distribution of the precipitates compared to the influence of the injection strategy. The influence of the initial biomass distribution on the resulting final distribution of the precipitated calcite is limited, except for the continuous injection at intermediate injection rate. But even for this Electronic supplementary material The online version of this article

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Section: Model Conceptmentioning

confidence: 99%

Section: Model Conceptmentioning

confidence: 99%

Section: Preliminary Experimentsmentioning

confidence: 99%

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Investigating the Influence of the Initial Biomass Distribution and Injection Strategies on Biofilm-Mediated Calcite Precipitation in Porous Media

et al. 2015

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“…So, over the past several decades, the features of bioclogging and biodegradation in porous media with biofilm have given rise to a broad range of applications, such as bioremediation, biobarriers (Baveye et al 1998;Cunningham et al 1991;Mitchell et al 2009), microbial enhanced oil recovery (Afrapoli et al 2011), and protection of steel corrosion (Videla and Herrera 2009;Zuo 2007). A number of macroscale models for describing solute transport in porous media with biofilm are available in the literature (Baveye and Valocchi 1989;Cunningham and MendozaSanchez 2006;van Noorden et al 2010;Ebigbo et al 2010Ebigbo et al , 2012Kapellos et al 2007;Rittmann 1993;Thullner et al 2004). There are two major classes of macroscale models: one-equation and two-equation models.…”

Section: Introductionmentioning

confidence: 99%

“…Attached bacterial cells are often embedded within a self-produced matrix of extracellular polymeric substance (EPS) which protects the cells from environmentally harsh conditions (Taylor and Jaffé 1990a, b;Ebigbo et al 2010Ebigbo et al , 2012. These cells together with the surrounding EPS are referred to as biofilm (Iltis et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Solute Mass Exchange Between Water Phase and Biofilm for a Single Pore

Qin

Hassanizadeh

2015

Transp Porous Med

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Currently, there are no tractable approaches available for modeling nonequilibrium mass exchange of a solute between water phase and biofilm in porous media. The present work contributes to a quantitative description of the mass exchange of a solute over a single pore domain under a wide range of prevailing conditions. First, we developed a semiempirical model for the rate of solute mass exchange between water phase and biofilm. Then, extensive microscale simulations in a single pore were conducted. Results were averaged over a single pore domain, in order to determine a tube-scale kinetic rate coefficient as a function of various transport and biofilm properties. We illustrated the dependencies of the coefficient on a number of variables like Péclet number, Damköhler number, and biofilm volume fraction. Based on those results, we developed empirical formulae for the tube-scale mass exchange coefficient as a function of Damköhler number and biofilm volume fraction. Finally, we verified the proposed mass exchange rate against microscale simulations of solute transport in a long capillary tube. Good match was obtained over a wide range of conditions. Keywords Porous media with biofilm · Non-equilibrium condition · Pore-scale modeling · Mass exchange coefficient · Solute transport List of symbols Latin symbols

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A revised model for microbially induced calcite precipitation: Improvements and new insights based on recent experiments

Hommel

Lauchnor

Phillips

et al. 2015

Water Resources Research

114

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The model for microbially induced calcite precipitation (MICP) published by Ebigbo et al. (2012) has been improved based on new insights obtained from experiments and model calibration. The challenge in constructing a predictive model for permeability reduction in the underground with MICP is the quantification of the complex interaction between flow, transport, biofilm growth, and reaction kinetics. New data from Lauchnor et al. (2015) on whole-cell ureolysis kinetics from batch experiments were incorporated into the model, which has allowed for a more precise quantification of the relevant parameters as well as a simplification of the reaction kinetics in the equations of the model. Further, the model has been calibrated objectively by inverse modeling using quasi-1D column experiments and a radial flow experiment. From the postprocessing of the inverse modeling, a comprehensive sensitivity analysis has been performed with focus on the model input parameters that were fitted in the course of the model calibration. It reveals that calcite precipitation and concentrations of NH

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Darcy‐scale modeling of microbially induced carbonate mineral precipitation in sand columns

Cited by 121 publications

References 80 publications

Investigating the Influence of the Initial Biomass Distribution and Injection Strategies on Biofilm-Mediated Calcite Precipitation in Porous Media

Investigating the Influence of the Initial Biomass Distribution and Injection Strategies on Biofilm-Mediated Calcite Precipitation in Porous Media

Solute Mass Exchange Between Water Phase and Biofilm for a Single Pore

A revised model for microbially induced calcite precipitation: Improvements and new insights based on recent experiments

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