Soil and Sediment Contamination An International Journal · 2008 · 11 citations · 8 references
AgricultureEarth SciencesSoil SciencesSoil ChemistrySoil Organic MatterSoil ScienceNatural AttenuationOrganic AmendmentsOrganic Contaminant RemediationSoil AmendmentsSoil ContaminationSoil PollutionEnvironmental Fate Of Soil ContaminantsHumus CompositionOrganic Soil AmendmentsPollutant Attenuation In SoilsSoil Amendment PerformanceSoil Amendments EvaluationSoil Chemical AmendmentSorption
Abstract The objective of this study was to identify low-cost natural amendments that could be used as carbon sources and sustain a bioactive zone to promote biodegradation of TCE in contaminated shallow groundwater. The natural amendments were compared based on their geophysical characteristics as well as TCE adsorption capacities. The amendments studied included low-cost natural and agricultural materials such as eucalyptus tree mulch, pine bark mulch, muck from the Florida Everglades, SRS wetland peat, commercial compost, and peat humus. These natural substrates have relatively high organic fractions that can retard the movement of TCE while serving as carbon sources. Batch sorption studies were conducted to determine the sorption and retardation characteristics of the amendments for TCE. The experimental results were analyzed in relation to the geophysical characteristics of the amendments and compared with those of natural soils. Keywords: Sorptionretardation factorbioactive barriersFreundlich modelTCEsoil amendments Acknowledgements Funding for this research was provided by U.S. Department of Energy (U.S. DOE) Grant Contract Number: DE-FG01-03EW15334. Notes *Values in parenthesis indicate the numbers estimated using Freundlich adsoption model.
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Methods of Soil Analysis 2d ed., pt. 1; Physical and Mineralogical Methods
A. Klute · Soil Science · 1988 · 3.2K citations