EPA/625/6-89/022May 1989

Stabilization/Solidification ofCERCLA and RCRA Wastes

Physical Tests, Chemical TestingProcedures, Technology Screening, and

Field Activities

Center for Environmental Research Informationand

Risk Reduction Engineering LaboratoryOffice of Research and DevelopmentU.S. Environmental Protection Agency

Cincinnati, OH 45268

Printed on Recycled Paper

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Figure 7-1. Photograph of tracked backhoes and draglines in operation at a hazardous waste site.

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Figure 7-2. Photographs of backhoe mixing of sludge and lime.

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Figure 7-3. Photograph of a soil-bentonite mixing plant using a pug mill.

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Figure 7-4. Photograph of unlined dump truck being loaded with lime stabilized/solidified sludge.

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Figure 7-5. Chart used to select equipment for compaction of various-sized media.

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Figure 7-6. Crane-mounted mixing system advancing through unstabilized/unsolidified sludge layer.

Figure 7-7. Photograph of ENRECO backhoe equipped with stabilization/solidifying agent injector.

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Figure 7-8. Photograph of a sheepsfoot roller being used for compaction.

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