Groundwater Treatability Study Using Granulated Peat
1996-07
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Groundwater Treatability Study Using Granulated Peat
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1996-07
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University of Minnesota Duluth
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Technical Report
Abstract
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.
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Natural Resources Research Institute, University of Minnesota Duluth; Prepared for: RUST Environment & Infrastructure
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NRRI Technical Report;NRRI/TR-96/13
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Hagen, Timothy S. (1996). Groundwater Treatability Study Using Granulated Peat. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/200940.
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