Accession Number : ADA324487

Title :   Toxicological Study Number 87-3012A-97; Studies on the Stability of the Binding of TNT Residues to Organic Fractions of Soil Compost During Composting of TNT-Contaminated Soil October 1994-October 1995.

Corporate Author : ARMY CENTER FOR HEALTH PROMOTION AND PREVENTIVE MEDICINE (PROVISIONAL) ABERDEE N PROVING GROUND MD

PDF Url : ADA324487

Report Date : OCT 1995

Pagination or Media Count : 23

Abstract : Composting is currently the only bioremediation method for explosives-contaminated soils that has progressed through the field trial stage. It has been accepted by the state of Oregon and the U.S. Environmental Protection Agency Region X for remediating the explosives-contaminated lagoon sediments at the U.S. Army Umatilla Depot Activity (UMDA) site at Hermiston, Oregon. In the most successful of the field composting demonstrations, 30 vol percent of contaminated soil was mixed with an amendment mixture consisting of 30 vol percent cow manure, 25.4 vol percent sawdust, 25.4 vol percent alfalfa, 14.3 vol percent chopped potato waste, and 4.9 vol percent chicken manure (Lowe et al., 1993) and was arranged in windrows. The windrows were tested in aerated and nonaerated versions, both with daily turning for a period of 40 days. Chemical and toxicological tests of the composted soil product demonstrated greater than 98 percent reductions in acetonitrile extractable and leachable explosives and extractable bacterial mutagens and approximately 90 percent reductions in leachable compounds toxic to Ceriodaphnia dubia (Griest et al., 1994 and 1995). Greenhouse microcosm tests of plants and invertebrates with the composted soil product showed small inhibitory effects on the germination and development of some plant species and, conversely, initial enhancement of earthworm size and population (Gunderson et al., 1994; Griest et al., 1994). The overall results suggested that plant and animal populations could be reestablished in the land-applied product.

Descriptors :   *SOILS, *CONTAMINATION, *ENVIRONMENTAL PROTECTION, *TNT, *CHEMICAL ANALYSIS, *TOXICOLOGY, ACETONITRILE, BACTERIA, FIELD TESTS, TEST METHODS, MATRIX MATERIALS, EXPLOSIVES, POPULATION, SUPPLY DEPOTS, ORGANIC MATERIALS, ANIMALS, MUTAGENS, INHIBITION, COMPOSTS, INVERTEBRATES, RESIDUES, PLANTS(BOTANY), GERMINATION, OREGON, SAWDUST, ALFALFA.

Subject Categories : Inorganic Chemistry
      Soil Mechanics
      Laminates and Composite Materials
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE