Development of a System to Protect Groundwater Threatened by Hazardous Spills on Land

摘要

The purpose of this project was to establish an alternative approach to treatment of hazardous materials spills on land other than the frequently limited approach of excavation or flushing of the area with water. Direct grout injections enveloped spills to isolate them from groundwater and a mobile in-situ containment/treatment unit was constructed and mechanically tested. Grouting procedures were most applicable in gravel, sand and some silty soils. Treatability agents added to four soils during flow-through tests showed 99 percent detoxification.