Browsing by Subject "Groundwater treatability study"

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    Groundwater Treatability Study Using Granulated Peat
    (University of Minnesota Duluth, 1996-07) Hagen, Timothy S
    Extensive research has focused on raw peat for removing contaminants such as dissolved metals and organics from wastewaters. Raw peat has significant cation exchange capacity due primarily to the carboxyl groups of its humic acid constituents. Efforts to capitalize on peats natural exchange capacity for industrial use has been hampered by the impermeability of peat to water flow, the tendency of organic matter to leach from peat, the instability of peat at pH values above 8, and its high dust content in dried form. Studies conducted by the Natural Resources Research Institute (NRRI) in conjunction with Peat Technologies Corporation {PTC) have focused on solving the impermeability, leaching, stability, and dust problems associated with using peat on an industrial scale. These efforts have identified a manufacturing process in which peat is converted into a highly porous, non leaching, stable granule for use in wastewater purification. The focus of this program was to evaluate the treatability of a groundwater contaminated with relatively high levels of dissolved organics using granulated peat. The organic contaminants include methyl ethyl ketone (MEK), acetone, tetrahydrafuran (THF), vinyl chloride, toluene, and others.