Accession Number : ADA257079
Title : Characterization of Explosives Processing Waste Decomposition Due to Composting
Descriptive Note : Final rept.
Corporate Author : OAK RIDGE NATIONAL LAB TN
Personal Author(s) : Griest, W H ; Tyndall, R L ; Stewart, A J ; Ho, C -H ; Ironside, K S ; Caton, J E ; Caldwell, W M ; Tan, E
Report Date : 01 Nov 1991
Pagination or Media Count : 143
Abstract : Static pile and mechanically stirred composts generated at the Umatilla Army Depot Activity in a field composting optimization study were chemically and toxicologically characterized to provide data for the evaluation of composting efficiency to decontaminate and detoxify explosives-contaminated soil. Characterization included determination of explosives and 2,4,6- trinitrotoluene metabolites in composts and their EPA Synthetic Precipitation Leaching Procedure Leachates, leachate toxicity to Ceriodaphnia Dubia and mutagenicity of the leachates and organic solvent extracts of the composts to Ames bacterial strains TA-98 and TA-100. The main conclusion from this study is that composting can effectively reduce the concentrations of explosives and bacterial mutagenicity in explosives - contaminated so,- , and can reduce the aquatic toxicity of leachable compounds. Small levels of explosives and metabolites, bacterial mutagenicity, and leachable aquatic toxicity remain after composting. The ultimate fate If the biotransformed explosives, and the source(s) of residual toxicity and mutagenicity remain unknown. Toxicity; RAIII; Composting; Characterization; Chemistry; Decontamination.
Descriptors : *CHEMISTRY , *SOILS , OPTIMIZATION , DECONTAMINATION , TOXICITY , RESIDUALS , ARMY , COMPOSTS , DETERMINATION , METABOLITES , LEACHING , TNT , STATICS , ORGANIC SOLVENTS , SOLVENTS , PRECIPITATION , ARMY FACILITIES , EFFICIENCY , EXPLOSIVES
Subject Categories : Ammunition and Explosives
Solid Wastes Pollution and Control
Distribution Statement : APPROVED FOR PUBLIC RELEASE