The selective recovery and recycling of heavy metals from soils and sludges

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:78023

Elston, G W; Burson, J A

In 1984, RCRA was amended by the Hazardous and Solid Waste Amendments. A key provision of HSWA is Land Disposal Restrictions (LDR`s aka Land Bans). Over the past six years, nearly all groups of hazardous wastes have become prohibited from land disposal unless they are first treated to meet USEPA specified treatment standards. The final group of wastes to be restricted by the LDR`s is frequently referred to the ``third third`` and includes soils contaminated with regulated metals when these soils fail the USEPA`s Toxicity Characteristic Leaching Procedure. Originally, the ``third third`` was to be banned from land disposal on May 8, 1990. In anticipation of this date, the principals of Earth Treatment Technologies, Inc. initiated the development of an extraction technology for the remediation of metals contaminated soils in 1988. Earth Treatment Technologies, Inc. (ETT) has developed and commercialized an acidic extraction technology for remediation of metals contaminated soils which meets these objectives. This paper describes the process technology and physical configuration of the treatment equipment and provides case studies and process performance results.

• OSTI ID: 78023
• Report Number(s): CONF-9406319--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
EXTRACTION
MATERIALS RECOVERY
METALS
RECYCLING
REMEDIAL ACTION
RESOURCE RECOVERY ACTS
SLUDGES
SOILS
TECHNOLOGY ASSESSMENT