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    Fate of organics in sewage effluent during soil aquifer treatment in soil columns

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    azu_td_hwr_0027_sip1_w.pdf
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    Author
    Quanrud, David Matson
    Issue Date
    1995
    Advisor
    Wilson, L. G.
    
    Metadata
    Show full item record
    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
    Unsaturated soil column experiments were performed to 1) differentiate biological and abiotic mechanisms for removal of dissolved organics in chlorinated municipal effluent and 2) determine efficacy of additional effluent pre-treatments (tertiary filtration and ozonation) during soil aquifer treatment (SAT). Three water quality parameters were examined: dissolved organic carbon (DOC), UV absorbance at 254 nanometers (UV A254), and adsorbable organic halide (AOX). DOC was removed primarily by biological activity during SAT. The average through-column removal using chlorinated secondary effluent was 48 %. UVA254 removals were dependent on both biological and abiotic mechanisms. AOX was removed primarily by sorption. Average removals for UV A254 and AOX were 30 and 17 %, respectively. Forty-four percent of the through column DOC removal and 57 % ofUVA254 attenuation occurred in the top 8 cm of soil. Tertiary filtration and pre-ozonation provided no significant additional water organic quality benefits following SAT.
    Type
    text
    Thesis-Reproduction (electronic)
    Degree Name
    M.S.
    Degree Level
    masters
    Degree Program
    Graduate College
    Hydrology and Water Resources
    Degree Grantor
    University of Arizona
    Collections
    Master's Theses

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