• Login
    View Item 
    •   Home
    • University of Alaska Fairbanks
    • UAF Graduate School
    • Engineering
    • View Item
    •   Home
    • University of Alaska Fairbanks
    • UAF Graduate School
    • Engineering
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of Scholarworks@UACommunitiesPublication DateAuthorsTitlesSubjectsTypeThis CollectionPublication DateAuthorsTitlesSubjectsType

    My Account

    Login

    First Time Submitters, Register Here

    Register

    Statistics

    Display statistics

    Protecting family drinking water in rural Alaska: improved water management in homes without running water

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Laderach_S_2006.pdf
    Size:
    183.4Mb
    Format:
    PDF
    Download
    Author
    Laderach, Shawna R.
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/5611
    Abstract
    The objective of this study was to investigate and make recommendations for improved in-home water management in an underserved rural Alaskan community without piped water. The main focus of the study is point-of-use disinfection. A model was developed based on experiments to predict the chlorine decay over time and the necessary chlorine dosage for waters used in the pilot community so that sufficient chlorine residual would remain during storage. TOC concentration, initial chlorination level, reduced iron and temperature were major factors impacting the chlorine consumption. Safe free chlorine levels of between 0.2 mg/L and 4.0 mg/L could be achieved in a reasonable time and maintained for typical storage times, while avoiding unpleasant taste. A taste test in the community showed that levels of 1 mg/L or less could not be distinguished by most people and were acceptable for drinking. Storage and hand washing are likely major components of preventing microbial contamination. It was determined that closed containers do not slow the loss of disinfectant from evaporation. Thorough hand washing for at least one minute using soap and running water is recommended, since this was the most effective method to remove coliform bacteria from hands.
    Description
    Thesis (M.S.) University of Alaska Fairbanks, 2006
    Table of Contents
    Objective and hypotheses -- Background -- Review of literature -- Materials and methods -- Results and discussion -- Conclusions and recommendations -- References -- Appendices.
    Date
    2006-12
    Type
    Thesis
    Collections
    Engineering

    entitlement

     
    ABOUT US|HELP|BROWSE|ADVANCED SEARCH

    The University of Alaska Fairbanks is an affirmative action/equal opportunity employer and educational institution and is a part of the University of Alaska system.

    ©UAF 2013 - 2023 | Questions? ua-scholarworks@alaska.edu | Last modified: September 25, 2019

    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.