The effects of temperature and motility on the advective transport of a deep subsurface bacteria through saturated sediment

Persistent Link:
http://hdl.handle.net/10150/278312
Title:
The effects of temperature and motility on the advective transport of a deep subsurface bacteria through saturated sediment
Author:
McCaulou, Douglas Ray, 1955-
Issue Date:
1993
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Replicate column experiments were done to quantify the effects of temperature and bacterial motility on advective transport through repacked, but otherwise unaltered, natural aquifer sediment. Greater microsphere removal observed at the higher temperature agreed with the physical-chemical model, but bacteria removal at 18°C was only half that at 4°C. The sticking efficiency for non-motile A0500 (4°C) was over three times that of the motile A0500 (18°C), 0.073 versus 0.022 respectively. Motile A0500 bacteria traveled twice as far as non-motile A0500 bacteria before becoming attached. Once attached, non-motile colloids detached on the time scale of 9 to 17 days. The time scale for detachment of motile A0500 bacteria was shorter, 4 to 5 days. Results indicate that bacterial attachment was reversible and detachment was enhanced by bacterial motility. The kinetic energy of bacterial motility changed the attachment-detachment kinetics in favor of the detached state.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Hydrology.; Biogeochemistry.; Environmental Sciences.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College
Degree Grantor:
University of Arizona
Advisor:
Bales, Roger C.; Arnold, Robert G.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleThe effects of temperature and motility on the advective transport of a deep subsurface bacteria through saturated sedimenten_US
dc.creatorMcCaulou, Douglas Ray, 1955-en_US
dc.contributor.authorMcCaulou, Douglas Ray, 1955-en_US
dc.date.issued1993en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractReplicate column experiments were done to quantify the effects of temperature and bacterial motility on advective transport through repacked, but otherwise unaltered, natural aquifer sediment. Greater microsphere removal observed at the higher temperature agreed with the physical-chemical model, but bacteria removal at 18°C was only half that at 4°C. The sticking efficiency for non-motile A0500 (4°C) was over three times that of the motile A0500 (18°C), 0.073 versus 0.022 respectively. Motile A0500 bacteria traveled twice as far as non-motile A0500 bacteria before becoming attached. Once attached, non-motile colloids detached on the time scale of 9 to 17 days. The time scale for detachment of motile A0500 bacteria was shorter, 4 to 5 days. Results indicate that bacterial attachment was reversible and detachment was enhanced by bacterial motility. The kinetic energy of bacterial motility changed the attachment-detachment kinetics in favor of the detached state.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectHydrology.en_US
dc.subjectBiogeochemistry.en_US
dc.subjectEnvironmental Sciences.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorBales, Roger C.en_US
dc.contributor.advisorArnold, Robert G.en_US
dc.identifier.proquest1352383en_US
dc.identifier.bibrecord.b27055541en_US
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