Program Two
Tuesday, May 20, 1997

Remediation of Munitions Compounds Kansa B



R.H. Kaake1, J. Bono1, and T. Yergovich2, J.R. Simplot Company, 1P.O. Box 912 Pocatello, ID 83201, 2P.O. Box 198, Lathrop, CA 95330 Characterization of a former weapons loading and assembly facility identified soil contaminated with the explosives TNT (2,4,6-trinitrotoluene) and RDX (hexahydro- 1,3,5-trinitro- l ,3,5-triazine). The site contained of a variety of discrete soil types that include clay, sand, and humus. A portion of the site is also periodically submerged due to tidal action.

Treatability studies were performed in conjunction with the Army Corps of Engineers Waterways Experiment Station. Results indicated the Simplot Anaerobic Biological Remediation (SABRETM) Process could successfully treat the soil to the specified treatment goals.

A full-scale demonstration of the Simplot Anaerobic Biological Remediation (SABRETM) Process was carried out at the Yorktown, Virginia, Naval Weapons Station. Over 650 yd3 of soil was treated to less than 30 mg/kg TNT in approximately 30 days. Initial concentrations were estimated to be 450 mg/kg. The soil was screened and placed into an in-ground, double-lined biocell using a soil fluidizing system.

The same system was used to slurry the soil and water without significantly affecting anaerobic conditions within the biocell. Both treatment goals (TNT 30 mg/kg, RDX 100 mg/kg) were met. Permission is being sought by the local regulators to discharge the treated soil and water back to the site without further treatment.

Key words: bioremediation, explosives, munitions, anaerobic, soil

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Tuesday, May 20, 1997

Metals Kansa A

Remediation of Munitions Compounds Kansa B

Analytical Methods Kansa C/D

General Topics Kansa B

Wednesday, May 21, 1997

Metals Kansa A

Zero-Valent Metals Kansa A

Remediation Kansa A

Vegetation-based Remediation Kansa B

Partnerships & Innovative Technologies Kansa C/D

Nonaqueous Phase Liquids Kansa C/D

Thursday, May 22, 1997

Biofilms & Barriers Kansa A

Bioremediation Kansa B

Partnerships & Technology Innovations Kansa C/D

Remediation Kansa C/D


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