Analysis of Exoelectrogenic Bacterial Communities Present in Different Brine Pools of the Red Sea

Handle URI:
http://hdl.handle.net/10754/316700
Title:
Analysis of Exoelectrogenic Bacterial Communities Present in Different Brine Pools of the Red Sea
Authors:
Ortiz Medina, Juan F.
Abstract:
One contemporary issue experienced worldwide is the climate change due to the combustion of fossil fuels. Microbial Electrochemical Systems pose as an alternative for energy generation. In this technology, microorganisms are primarily responsible for electricity production. To improve the performance it is reasonable to think that bacteria from diverse environments, such as the brine pools of the Red Sea, can be utilized in these systems. Samples from three brine pools: Atlantis II, Valdivia, and Kebrit Deeps, were analyzed using Microbial Electrochemical Cells, with a poised potential at +0.2 V (vs. Ag/AgCl) and acetate as electron donor, to evaluate the exoelectrogenic activity by the present microorganisms. Only samples from Valdivia Deep were able to produce a noticeable current of 6 A/m2. This result, along with acetate consumption and changes on the redox activity measured with cyclic voltammetry, provides arguments to con rm the presence of exoelectrogenic bacteria in this environment. Further characterization using microscopy and molecular biology techniques is required, to obtain the most amount of information about these microorganisms and their potential use in bioelectrochemical technologies.
Advisors:
Saikaly, Pascal E.
Committee Member:
Amy, Gary L.; Stingl, Ulrich ( 0000-0002-0684-2597 )
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Program:
Environmental Science and Engineering
Issue Date:
May-2014
Type:
Thesis
Appears in Collections:
Environmental Science and Engineering Program; Theses; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.advisorSaikaly, Pascal E.en
dc.contributor.authorOrtiz Medina, Juan F.en
dc.date.accessioned2014-05-11T07:25:13Z-
dc.date.available2014-05-11T07:25:13Z-
dc.date.issued2014-05en
dc.identifier.urihttp://hdl.handle.net/10754/316700en
dc.description.abstractOne contemporary issue experienced worldwide is the climate change due to the combustion of fossil fuels. Microbial Electrochemical Systems pose as an alternative for energy generation. In this technology, microorganisms are primarily responsible for electricity production. To improve the performance it is reasonable to think that bacteria from diverse environments, such as the brine pools of the Red Sea, can be utilized in these systems. Samples from three brine pools: Atlantis II, Valdivia, and Kebrit Deeps, were analyzed using Microbial Electrochemical Cells, with a poised potential at +0.2 V (vs. Ag/AgCl) and acetate as electron donor, to evaluate the exoelectrogenic activity by the present microorganisms. Only samples from Valdivia Deep were able to produce a noticeable current of 6 A/m2. This result, along with acetate consumption and changes on the redox activity measured with cyclic voltammetry, provides arguments to con rm the presence of exoelectrogenic bacteria in this environment. Further characterization using microscopy and molecular biology techniques is required, to obtain the most amount of information about these microorganisms and their potential use in bioelectrochemical technologies.en
dc.language.isoenen
dc.subjectbrine poolsen
dc.subjectRed Seaen
dc.subjectexoelectrogenic bacteriaen
dc.subjectMicrobial Fuel Cellsen
dc.titleAnalysis of Exoelectrogenic Bacterial Communities Present in Different Brine Pools of the Red Seaen
dc.typeThesisen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
thesis.degree.grantorKing Abdullah University of Science and Technologyen_GB
dc.contributor.committeememberAmy, Gary L.en
dc.contributor.committeememberStingl, Ulrichen
thesis.degree.disciplineEnvironmental Science and Engineeringen
thesis.degree.nameMaster of Scienceen
dc.person.id124186en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.