In Situ Immobilization of Heavy-Metal-Contaminated Soils
Many waste solutions and sludges contaminated with heavy metals are generated during aircraft maintenance operations at various Air Force Air Logistics Centers. The disposal of these waste streams by previously acceptable means has led to problems with the contamination of both soil and groundwater. Available technologies for treating contaminated soils are expensive. In situ immobilization of heavy metals is a cost-effective treatment alternative to alleviate the environmental and health hazards associated with contaminated soils. The objective of the program was the laboratory evaluation of various treatment chemicals for the in situ immobilization of hexavalent chromium, cadmium, nickel, copper and zinc in soils from Air Force facilities in the United States.View full description
Engineers and scientists dealing with solid waste pollution and controls.
- Published: December 1989
- Imprint: WILLIAM ANDREW
- ISBN: 978-0-8155-1219-6
Table of ContentsContents and Subject IndexExecutive Summary Introduction Test Results Cost Analysis Recommendation1. Introduction Objective Background ScopeII. Soil Characteristics Background Interaction of Soil and Contaminant Metals Soil Collection Soil AnalysesIII. Treatment Chemical Additives In Situ Immobiliation Treatment ChemicalsIV. Test Apparatus and Analytical Techniques Equipment and Operation Analytical Techniques IV. Batch Screening Test Program Plan of Approach Batch Screening Test Program Dynamic Flow Column Test Program Long-Term Stability Column Test Program Hazardous Waste Site Simulation Test ProgramVI. In Situ Treatment CostsVII. Conclusions and Recommendations Conclusions RecommendationsVIII. ReferencesAppendix A: Batch Screening Test Data and AnalysisAppendix B: Long-Term Stability Column Test Data