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    • Hydrology and Water Resources in Arizona and the Southwest, Volume 01 (1971)
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    Sulfuric Acid: Its Potential for Improving Irrigation Water Quality

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    Author
    Bohn, H. L.
    Westerman, R. L.
    Affiliation
    Department of Agricultural Chemistry and Soils, University of Arizona, Tucson
    Issue Date
    1971-04-23
    Keywords
    Water resources development -- Arizona.
    Hydrology -- Arizona.
    Hydrology -- Southwestern states.
    Water resources development -- Southwestern states.
    Alkaline soils
    Air pollution
    Sulfur compounds
    Irrigation water
    Arid lands
    Southwest U.S.
    Colorado River
    Groundwater
    Economic feasibility
    Arizona
    Sodium
    Bicarbonates
    Carbonates
    Sulfur
    Calcium
    Soil chemical properties
    Water quality
    Ion exchange
    Sulfuric acid
    Sulfur dioxide
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    Copyright ©, where appropriate, is held by the author.
    Collection Information
    This article is part of the Hydrology and Water Resources in Arizona and the Southwest collections. Digital access to this material is made possible by the Arizona-Nevada Academy of Science and the University of Arizona Libraries. For more information about items in this collection, contact anashydrology@gmail.com.
    Publisher
    Arizona-Nevada Academy of Science
    Journal
    Hydrology and Water Resources in Arizona and the Southwest
    Abstract
    The 2 major environmental problems of Arizona and the southwest are the alkalinization of soil and water by irrigation and air pollution from copper smelting. It is proposed that the amelioration of both problems may be solved through a common process. This is the production of sulfuric acid from sulfur dioxide, which is the main pollutant of smelter effluent gases. The conversion process is cheap and easy, and the sulfuric acid could then be added to irrigation waters to increase the solubility of CA carbonate in the soil, thereby decreasing alkalinity. Lower alkalinity results in increased soil permeability and increased water use efficiency by plants. The potential market for sulfuric acid in irrigation was calculated, on the basis of neutralizing 90% of the bicarbonate ion concentration in Colorado River water and Arizona well water, to be about 1.6 million tons annually, representing about 1/3 of the sulfur now dissipated by smelters as air pollution. This market includes both the Imperial Valley of California and the Mexicali Valley of Mexico, both of which are currently experiencing mounting salinity problems. Salinity itself is not amenable to this treatment, but the cumulative increase in NA and bicarbonate may be slowed and reversed, leading to gradual soil stabilization.
    ISSN
    0272-6106
    Collections
    Hydrology and Water Resources in Arizona and the Southwest, Volume 01 (1971)

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