Bacteria Transport Through Porous Material
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Bacteria Transport Through Porous Material
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Author :
language : en
Publisher:
Release Date : 1989
Bacteria Transport Through Porous Material written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
The injection and penetration of bacteria into a reservoir is the most problematic and crucial of the steps in microbial enhanced recovery (MEOR). In the last phase of our work valuable information on bacterial transport in porous media was obtained. A great deal of progress was made to determine chemical bonding characteristics between adsorbed bacteria and the rock surfaces. In order to further enhance our knowledge of the effects of surface tensions on bacteria transport through porous media, a new approach was taken to illustrate the effect of liquid surface tension on bacterial transport through a sandpack column. Work in surface charge characterization of reservoir rock as a composite oxide system was also accomplished. In the last section of this report a mathematical model to simulate the simultaneous diffusion and growth of bacteria cells in a nutrient-enriched porous media is proposed.
Bacteria Transport Through Porous Media
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Author : Teh Fu Yen
language : en
Publisher:
Release Date : 1986
Bacteria Transport Through Porous Media written by Teh Fu Yen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Porous materials categories.
Bacteria Transport Through Porous Material
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Author : Teh Fu Yen
language : en
Publisher:
Release Date : 1986
Bacteria Transport Through Porous Material written by Teh Fu Yen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
Bacteria Transport Through Porous Media
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Author : United States. Department of Energy
language : en
Publisher:
Release Date : 1986
Bacteria Transport Through Porous Media written by United States. Department of Energy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Microbial enhanced oil recovery categories.
Bacteria Transport Through Porous Material
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Author : T. F. Yen
language : en
Publisher:
Release Date : 1989
Bacteria Transport Through Porous Material written by T. F. Yen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Microbial enhanced oil recovery categories.
Interactions Between Bacteria And Solid Surfaces In Relation To Bacterial Transport In Porous Media
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Author : H. H. M.. Rijnaarts
language : en
Publisher:
Release Date : 1994
Interactions Between Bacteria And Solid Surfaces In Relation To Bacterial Transport In Porous Media written by H. H. M.. Rijnaarts and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
A Numerical Study Of Bacteria Transport Through Porous Media Using The Green Element Method
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Author : Suresh Ramsuroop
language : en
Publisher:
Release Date : 2000
A Numerical Study Of Bacteria Transport Through Porous Media Using The Green Element Method written by Suresh Ramsuroop and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Porous materials categories.
Increased Linear Transport Velocity Of Bacteria Through Porous Media
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Author : Kevin L. Long
language : en
Publisher:
Release Date : 2000
Increased Linear Transport Velocity Of Bacteria Through Porous Media written by Kevin L. Long and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Transport Of Subsurface Bacteria In Porous Media
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Author :
language : en
Publisher:
Release Date : 1995
Transport Of Subsurface Bacteria In Porous Media written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
The primary objective of this study was to develop tools with which to measure the advective transport of microorganisms through porous media. These tools were then applied to investigate the sorptive properties of representative microorganisms that were selected at random from the DOE's deep subsurface collection of bacterial, maintained at Florida State University. The transport screening procedure that arose from this study was also used to investigate biological factors that affect the transport/sorption of biocolloids during their movement through porous media with the bulk advective flow.
Bio Colloidal Transfer In Saturated And Unsaturated Porous Media
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Author : Hongjuan Bai
language : en
Publisher:
Release Date : 2017
Bio Colloidal Transfer In Saturated And Unsaturated Porous Media written by Hongjuan Bai and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
The investigation of the transport and retention of bacteria in porous media has a great practical importance in environmental applications, such as protection of the surface and groundwater supplies from contamination, risk assessment from microorganisms in groundwater, and soil bioremediation. The aim of this study is to gain a fundamental understanding of the mechanisms that control bacteria transport and deposition in saturated and unsaturated porous media. Laboratory tracer and bacteria transport experiments at Darcy scale were performed in three porous media with distinct pore size distribution in order to investigate and quantify water and bacteria transport process under steady state flow conditions. A conservative solute was used as water tracer to characterize water flow pathways through porous media. A gram negative, motile Escherichia coli, a gram negative, non-motile Klebsiella sp. and a gram positive, non-motile R. rhodochrous were selected for the transport experiments. Characterization of cell properties (such as cell size and shape, zeta potential, motility and hydrophobicity) was performed for each strain. Numerical simulations with HYDRUS-1D code were performed to characterize water flow and to estimate bacteria transport and deposition parameters. The later were explored to identify bacteria flow patterns and physicochemical or physical mechanisms involved in bacteria deposition. To provide a better understanding of the mechanisms involved on bacteria transport and deposition, pore scale experiments were carried out by using microfluidic devices, designed for this purpose. The information obtained from laboratory experiments and numerical modeling was improved by theoretical calculation of different interactions between bacteria and porous media at air/water/solid interfaces. DLVO and non-DLVO interactions such as hydrophobic, steric, capillary and hydrodynamic forces involved in bacteria deposition were considered to describe bacteria-interface interactions in order to identify their relative impact on physicochemical and physical deposition of bacteria. Results obtained through both laboratory experiments and numerical simulationsoutlined non-uniform flow pathways, which were dependent on both grain/pore size as well as pore size distribution of the porous media. For a given porous medium, water flow patterns became more non-uniform and dispersive with decreasing water saturation due to the presence of air phase, which lead to an increase of the tortuosity of the flow pathways under unsaturated conditions. Bacteria transport pathways were different from the tracer transport, due to size exclusion of bacteria from smaller pore spaces and bacteria motility. Bacteria deposition was greatly influenced by pore network geometry, cell properties and water saturation degree. Both physical straining and physicochemical attachment should be taken into account to well describe bacteria deposition, but their importance on bacteria deposition is closely linked to porous media and cell properties. The results obtained in this work highlighted the simultaneous role of cell properties, pore size distribution and hydrodynamics of the porous media on bacteria transport and deposition mechanisms. The calculation of DLVO and non-DLVO interactions showed that bacteria deposition in saturated and unsaturated porous media was influenced by both kinds of interactions.