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    Survivability of total coliforms in freezing and frozen soils

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    Adhikari_HrishiKesh_8-2005.pdf
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    Author
    Hrishikesh, Adhikari
    Chair
    Barnes, David L.
    Schiewer, Silke
    Committee
    White, Dan
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/4894
    Abstract
    The study showed that a significant fraction of coliform bacteria survive for more than six months in soil at different temperatures and moisture contents. Survivability of coliform bacteria at subzero temperatures decreased with an increase in moisture content and with an increase in temperature. Total coliform bacteria in soil samples placed outdoors during winter had lower survivability in comparison to samples placed at controlled temperatures below O⁰c. High survivability of total coliform bacteria at controlled, subzero temperatures was assumed to be related to the reduced metabolic activities of the bacteria.
    Description
    Thesis (M.S.) University of Alaska Fairbanks, 2014
    Table of Contents
    Introduction -- Literature review -- Coliform as an indicator of fecal contamination -- Factors affecting survivability of coliforms in soil -- Die off kinetics of coliform in a non-host environment -- Transport of coliform from the soil -- Materials and methods -- Soil sample preparation and soil characterization -- Total coliform enumeration -- Statistical analysis -- Results and discussion -- Soil characteristics -- Total coliform survivability under constant temperature conditions -- Total coliform survivability under uncontrolled temperature conditions -- Conclusions and future work -- Conclusions -- Future work -- References -- Appendices.
    Date
    2005-08
    Type
    Thesis
    Collections
    Engineering

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