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Garg A, Sharma Y, Jain SK. Stability analysis of thermo-bioconvection flow of Jeffrey fluid containing gravitactic microorganism into an anisotropic porous medium. FORCES IN MECHANICS 2023. [DOI: 10.1016/j.finmec.2022.100152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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2
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Chen C, Wei K, Gu J, Huang X, Dai X, Liu Q. Combined Effect of Biopolymer and Fiber Inclusions on Unconfined Compressive Strength of Soft Soil. Polymers (Basel) 2022; 14:polym14040787. [PMID: 35215698 PMCID: PMC8878227 DOI: 10.3390/polym14040787] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/11/2022] [Accepted: 02/14/2022] [Indexed: 02/06/2023] Open
Abstract
The utilizing of traditional chemical stabilizers could improve soil engineering properties but also results in brittle behavior and causes environmental problems. This study investigates the feasibility of the combined utilization of an ecofriendly biopolymer and fiber inclusions as an alternative to traditional cement for reinforcing soft soil. A series of unconfined compression tests were conducted to examine the combined effect of the biopolymer and fibers on the stress–strain characteristics, strength improvement, failure pattern, and reinforcement mechanism of soft soil. The results show that the biopolymer associated with fibers has an unconfined compressive strength similar to that of fiber-reinforced soil. However, it then increases with different curing times and conditions, which can be up to 1.5 MPa–2.5 MPa. The combined effect of fibers and the biopolymer is not simply equivalent to the sum of the effects of each individual material. The fiber shows its role instantly after being mixed into soil, whereas the effect of biopolymer gradually appears with sample curing time. The biopolymer plays a dominant role in increasing the peak unconfined compressive strength and brittleness of soil, while the amount of fiber is crucial for reducing soil brittleness and increasing ductility. It is shown that the biopolymer not only contributes to the particle bonding force but also facilitates the reinforcement efficiency of fibers in the soil. The fibers in return assist in reducing the soil brittleness arising from biopolymer cementation and provide residual resistance after post-peak failure.
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Affiliation(s)
- Chunhui Chen
- Badong National Observation and Research Station of Geohazards (BNORSG), Three Gorges Research Center for Geo-Hazards of Ministry of Education, China University of Geosciences, Wuhan 430074, China; (C.C.); (K.W.); (J.G.)
| | - Kai Wei
- Badong National Observation and Research Station of Geohazards (BNORSG), Three Gorges Research Center for Geo-Hazards of Ministry of Education, China University of Geosciences, Wuhan 430074, China; (C.C.); (K.W.); (J.G.)
| | - Jiayu Gu
- Badong National Observation and Research Station of Geohazards (BNORSG), Three Gorges Research Center for Geo-Hazards of Ministry of Education, China University of Geosciences, Wuhan 430074, China; (C.C.); (K.W.); (J.G.)
| | - Xiaoyang Huang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China;
| | - Xianyao Dai
- Hubei Provincial Communications Planning and Design Institute, Wuhan 430051, China;
| | - Qingbing Liu
- Badong National Observation and Research Station of Geohazards (BNORSG), Three Gorges Research Center for Geo-Hazards of Ministry of Education, China University of Geosciences, Wuhan 430074, China; (C.C.); (K.W.); (J.G.)
- Correspondence:
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Systematic modelling incorporating temperature, pressure, and salinity effects on in-situ microbial selective plugging for enhanced oil recovery in a multi-layered system. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108260] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Simulation-Based Optimization of Microbial Enhanced Oil Recovery with a Model Integrating Temperature, Pressure, and Salinity Effects. ENERGIES 2021. [DOI: 10.3390/en14041131] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The microbial enhanced oil recovery (MEOR) method is an eco-friendly and economical alternative technology. The technology involves a variety of uncertainties, and its success depends on controlling microbial growth and metabolism. Though a few numerical studies have been carried out to reduce the uncertainties, no attempt has been made to consider temperature, pressure, and salinity in an integrated manner. In this study, a new modeling method incorporating these environmental impacts was proposed, and MEOR analysis was performed. As a result, accurate modeling was possible to prevent overestimating the performance of MEOR. In addition, oil recovery was maximized through sensitivity analysis and optimization based on an integrative model. Finally, applying MEOR to an actual reservoir model showed a 7% increase in oil recovery compared to waterflooding. This result proved the practical applicability of the method.
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Non-Invasive Measurement, Mathematical Simulation and In Situ Detection of Biofilm Evolution in Porous Media: A Review. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11041391] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The development of biofilms and the related changes in porous media in the subsurface cannot be directly observed and evaluated. The primary reason that the mechanism of biofilm clogging in porous media cannot be clearly demonstrated is due to the opacity and structural complexity of three-dimensional pore space. Interest in exploring methods to overcome this limitation has been increasing. In the first part of this review, we introduce the underlying characteristics of biofilm in porous media. Then, we summarize two approaches, non-invasive measurement methods and mathematical simulation strategies, for studying fluid–biofilm–porous medium interaction with spatiotemporal resolution. We also discuss the advantages and limitations of these approaches. Lastly, we provide a perspective on opportunities for in situ monitoring at the field site.
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Critical review on the numerical modeling of in-situ microbial enhanced oil recovery processes. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107294] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Oka GK, Pinder GF. Multiscale Model for Assessing Effect of Bacterial Growth on Intrinsic Permeability of Soil: Model Description. Transp Porous Media 2017. [DOI: 10.1007/s11242-017-0870-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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Modeling multidimensional and multispecies biofilms in porous media. Biotechnol Bioeng 2017; 114:1679-1687. [DOI: 10.1002/bit.26292] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 03/12/2017] [Accepted: 03/15/2017] [Indexed: 11/07/2022]
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9
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Xiong Q, Baychev TG, Jivkov AP. Review of pore network modelling of porous media: Experimental characterisations, network constructions and applications to reactive transport. JOURNAL OF CONTAMINANT HYDROLOGY 2016; 192:101-117. [PMID: 27442725 DOI: 10.1016/j.jconhyd.2016.07.002] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 06/23/2016] [Accepted: 07/09/2016] [Indexed: 06/06/2023]
Abstract
Pore network models have been applied widely for simulating a variety of different physical and chemical processes, including phase exchange, non-Newtonian displacement, non-Darcy flow, reactive transport and thermodynamically consistent oil layers. The realism of such modelling, i.e. the credibility of their predictions, depends to a large extent on the quality of the correspondence between the pore space of a given medium and the pore network constructed as its representation. The main experimental techniques for pore space characterisation, including direct imaging, mercury intrusion porosimetry and gas adsorption, are firstly summarised. A review of the main pore network construction techniques is then presented. Particular focus is given on how such constructions are adapted to the data from experimentally characterised pore systems. Current applications of pore network models are considered, with special emphasis on the effects of adsorption, dissolution and precipitation, as well as biomass growth, on transport coefficients. Pore network models are found to be a valuable tool for understanding and predicting meso-scale phenomena, linking single pore processes, where other techniques are more accurate, and the homogenised continuum porous media, used by engineering community.
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Affiliation(s)
- Qingrong Xiong
- Modelling & Simulation Centre and Research Centre for Radwaste & Decommissioning, School of Mechanical Aerospace & Civil Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK.
| | - Todor G Baychev
- Modelling & Simulation Centre and Research Centre for Radwaste & Decommissioning, School of Mechanical Aerospace & Civil Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Andrey P Jivkov
- Modelling & Simulation Centre and Research Centre for Radwaste & Decommissioning, School of Mechanical Aerospace & Civil Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
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11
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12
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Qin CZ, Hassanizadeh SM. Solute Mass Exchange Between Water Phase and Biofilm for a Single Pore. Transp Porous Media 2015. [DOI: 10.1007/s11242-015-0513-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
We present a model of biofilm growth in a long channel where the biomass is assumed to have the rheology of a viscous polymer solution. We examine the competition between growth and erosion-like surface detachment due to the flow. A particular focus of our investigation is the effect of the biofilm growth on the fluid flow in the pores, and the issue of whether biomass can grow sufficiently to shut off fluid flow through the pores, thus clogging the pore space. Net biofilm growth is coupled along the pore length via flow rate and nutrient transport in the pore flow. Our 2D model extends existing results on stability of 1D steady state biofilm thicknesses to show that, in the case of flows driven by a fixed pressure drop, full clogging of the pore can indeed happen in certain cases dependent on the functional form of the detachment term.
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Instability Analysis of Gyrotactic Microorganisms: A Combined Effect of High-Frequency Vertical Vibration and Porous Media. Transp Porous Media 2014. [DOI: 10.1007/s11242-014-0268-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Sun S, Luo Y, Cao S, Li W, Zhang Z, Jiang L, Dong H, Yu L, Wu WM. Construction and evaluation of an exopolysaccharide-producing engineered bacterial strain by protoplast fusion for microbial enhanced oil recovery. BIORESOURCE TECHNOLOGY 2013; 144:44-49. [PMID: 23856587 DOI: 10.1016/j.biortech.2013.06.098] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Revised: 06/23/2013] [Accepted: 06/24/2013] [Indexed: 06/02/2023]
Abstract
Enterobacter cloacae strain JD, which produces water-insoluble biopolymers at optimal temperature of 30°C, and a thermophilic Geobacillus strain were used to construct an engineered strain for exopolysaccharide production at high temperatures by protoplast fusion. The obtained fusant strain ZR3 produced exopolysaccharides at up to 45°C with optimal growth temperature at 35°C. The fusant produced exopolysaccharides of approximately 7.5 g/L or more at pH between 7.0 and 9.0. The feasibility of the enhancement of crude oil recovery with the fusant was tested in a sand-packed column at 40°C. The results demonstrated that bioaugmentation of the fusant was promising approach for MEOR. Mass growth of the fusant was confirmed in fermentor tests.
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Affiliation(s)
- Shanshan Sun
- State Key Laboratory of Heavy Oil Processing, Faculty of Chemical Engineering, China University of Petroleum, Beijing 102249, PR China
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Maggi F, Daly E. Decomposition pathways and rates of human urine in soils. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:6175-6186. [PMID: 23750893 DOI: 10.1021/jf401212n] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This study proposes a comprehensive reaction network of the soil microbial breakdown of the main compounds in human urine to the end products NH₃ and NH₄⁺. A reactive model was developed and parameters were determined against experimental data. The model was used to assess the amount and release rate of NH₃ and NH₄⁺ in a soil control volume flushed with (i) pulses of urine at various dilutions and (ii) a continuous flow of urine at various dilutions and flow rates. In scenario i, 90% of incoming organic nitrogen was converted to NH₃ and NH₄⁺ between 5 and 20 days from application at rates strongly dependent on the initial microbial soil content. Urea and hippuric acid were largely correlated to NH₃ and NH₄⁺ release, whereas microbial functional groups in the same scenarios were poorly correlated with NH₃ and NH₄⁺ release. In scenario ii, 90% conversion was generally reached for low flow rates and was highly nonlinear with the dilution. Finally, a stochastic analysis showed that urine decomposition was more sensitive to uncertainty in microbial growth rate parameters than half-saturation concentrations.
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Affiliation(s)
- Federico Maggi
- School of Civil Engineering, Building J05, The University of Sydney, Sydney, NSW 2006, Australia.
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Drescher K, Shen Y, Bassler BL, Stone HA. Biofilm streamers cause catastrophic disruption of flow with consequences for environmental and medical systems. Proc Natl Acad Sci U S A 2013; 110:4345-50. [PMID: 23401501 PMCID: PMC3600445 DOI: 10.1073/pnas.1300321110] [Citation(s) in RCA: 202] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Biofilms are antibiotic-resistant, sessile bacterial communities that occupy most moist surfaces on Earth and cause chronic and medical device-associated infections. Despite their importance, basic information about biofilm dynamics in common ecological environments is lacking. Here, we demonstrate that flow through soil-like porous materials, industrial filters, and medical stents dramatically modifies the morphology of Pseudomonas aeruginosa biofilms to form 3D streamers, which, over time, bridge the spaces between obstacles and corners in nonuniform environments. We discovered that accumulation of surface-attached biofilm has little effect on flow through such environments, whereas biofilm streamers cause sudden and rapid clogging. We demonstrate that flow-induced shedding of extracellular matrix from surface-attached biofilms generates a sieve-like network that captures cells and other biomass, which add to the existing network, causing exponentially fast clogging independent of growth. These results suggest that biofilm streamers are ubiquitous in nature and strongly affect flow through porous materials in environmental, industrial, and medical systems.
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Affiliation(s)
- Knut Drescher
- Departments of Molecular Biology and
- Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544; and
| | - Yi Shen
- Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544; and
| | - Bonnie L. Bassler
- Departments of Molecular Biology and
- Howard Hughes Medical Institute, Chevy Chase, MD 20815
| | - Howard A. Stone
- Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544; and
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Bottero S, Storck T, Heimovaara TJ, van Loosdrecht MCM, Enzien MV, Picioreanu C. Biofilm development and the dynamics of preferential flow paths in porous media. BIOFOULING 2013; 29:1069-86. [PMID: 24028574 DOI: 10.1080/08927014.2013.828284] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A two-dimensional pore-scale numerical model was developed to evaluate the dynamics of preferential flow paths in porous media caused by bioclogging. The liquid flow and solute transport through the pore network were coupled with a biofilm model including biomass attachment, growth, decay, lysis, and detachment. Blocking of all but one flow path was obtained under constant liquid inlet flow rate and biomass detachment caused by shear forces only. The stable flow path formed when biofilm detachment balances growth, even with biomass weakened by decay. However, shear forces combined with biomass lysis upon starvation could produce an intermittently shifting location of flow channels. Dynamic flow pathways may also occur when combined liquid shear and pressure forces act on the biofilm. In spite of repeated clogging and unclogging of interconnected pore spaces, the average permeability reached a quasi-constant value. Oscillations in the medium permeability were more pronounced for weaker biofilms.
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Affiliation(s)
- Simona Bottero
- a Faculty of Applied Sciences, Department of Biotechnology , Delft University of Technology , Delft , The Netherlands
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Overstability Analysis of Thermo-bioconvection Saturating a Porous Medium in a Suspension of Gyrotactic Microorganisms. Transp Porous Media 2011. [DOI: 10.1007/s11242-011-9810-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Ezeuko CC, Sen A, Grigoryan A, Gates ID. Pore-network modeling of biofilm evolution in porous media. Biotechnol Bioeng 2011; 108:2413-23. [PMID: 21520022 DOI: 10.1002/bit.23183] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Revised: 03/28/2011] [Accepted: 04/04/2011] [Indexed: 11/11/2022]
Abstract
The influence of bacterial biomass on hydraulic properties of porous media (bioclogging) has been explored as a viable means for optimizing subsurface bioremediation and microbial enhanced oil recovery. In this study, we present a pore network simulator for modeling biofilm evolution in porous media including hydrodynamics and nutrient transport based on coupling of advection transport with Fickian diffusion and a reaction term to account for nutrient consumption. Biofilm has non-zero permeability permitting liquid flow and transport through the biofilm itself. To handle simultaneous mass transfer in both liquid and biofilm in a pore element, a dual-diffusion mass transfer model is introduced. The influence of nutrient limitation on predicted results is explored. Nutrient concentration in the network is affected by diffusion coefficient for nutrient transfer across biofilm (compared to water/water diffusion coefficient) under advection dominated transport, represented by mass transport Péclet number >1. The model correctly predicts a dependence of rate of biomass accumulation on inlet concentration. Poor network connectivity shows a significantly large reduction of permeability, for a small biomass pore volume.
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Affiliation(s)
- C C Ezeuko
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4; telephone: 1-403-479-1254; fax: 1-403-284-4852.
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Yang C, Chen H, Zeng G, Yu G, Luo S. Biomass accumulation and control strategies in gas biofiltration. Biotechnol Adv 2010; 28:531-40. [DOI: 10.1016/j.biotechadv.2010.04.002] [Citation(s) in RCA: 193] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2010] [Revised: 03/30/2010] [Accepted: 04/04/2010] [Indexed: 10/19/2022]
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22
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Modeling of microorganisms transport in a cylindrical pore. J Ind Microbiol Biotechnol 2008; 35:495-500. [DOI: 10.1007/s10295-008-0307-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2007] [Accepted: 12/19/2007] [Indexed: 10/22/2022]
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23
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Culture and exopolysaccharide production from sugarcane molasses by Gordonia polyisoprenivorans CCT 7137, isolated from contaminated groundwater in Brazil. World J Microbiol Biotechnol 2007. [DOI: 10.1007/s11274-007-9570-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Fusconi R, Godinho MJL, Bossolan NRS. Starvation survival of Gordonia polyisoprenivorans CCT 7137, isolated from contaminated groundwater in Brazil. World J Microbiol Biotechnol 2007. [DOI: 10.1007/s11274-007-9377-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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