Accession Number : ADA291187

Title :   Windrow Composting Demonstration for Explosives-Contaminated Soils at the Umatilla Depot Activity Hermiston, Oregon.

Descriptive Note : Final rept. Oct 91-May 93,

Corporate Author : WESTON (ROY F) INC WEST CHESTER PA

Personal Author(s) : Hammell, ; Lowe, ; Marks, ; Myers,

PDF Url : ADA291187

Report Date : AUG 1993

Pagination or Media Count : 279

Abstract : The U.S. Army Environmental Center (USAEC) formerly the U.S. Army Toxic and Hazardous Materials Agency (USATHAMA) conducted windrow and seeding composting field studies at the Umatilla Depot Activity (UNDA) in Hermiston, Oregon. These tests supplemented previous aerated static pile (ASP) and mechanically agitated in-vessel (MAIV) studies with the goal of identifying a composting technique that can provide an acceptable and cost effective alternative to incineration for the treatment of explosives-contaminated soils. In the past, incineration has been the standard solution implemented for the treatment of explosives-contaminated soils; however, composting shows promise as a cost-effective and environmentally acceptable alternative. The seeding study investigated the usefulness of recycling a portion of active compost from ASP tests into the initial mixture of subsequent ASP tests. It was theorized that over time, an acclimated culture of organisms adapted for the biological degradation of explosives would be developed and that their continued incorporation into successive mixtures could result in a decrease in the retention time necessary to reach explosives reduction goals. While this principal of seeding and recycle is well-founded in waste treatment practice, clear benefits were not observed under the conditions tested in this study. The windrow study investigated the feasibility of employing a windrow composting approach for the remediation of explosives-contaminated soils and sediments. Both conventional unaerated windrows and mechanically aerated windrow tests were conducted. Preliminary testing was conducted using uncontaminated soils to establish operating parameters. -BKA

Descriptors :   *SOIL POLLUTION, *WASTE RECYCLING, *COMPOSTS, *MICROBIOLOGY, *EXPLOSIVE ORDNANCE DISPOSAL, *SEEDING, *REACTOR CONTROL, COST EFFECTIVENESS, WASTE WATER, TOXICITY, BIOCHEMISTRY, ARMY FACILITIES, FIELD TESTS, MOISTURE CONTENT, OXYGEN, BIOLOGICAL CONTAMINATION, DRAINAGE, HISTORY, TEMPERATURE CONTROL, MIXING, SITE INVESTIGATIONS, ENVIRONMENTAL PROTECTION, BIODEGRADATION, INCINERATORS, STATICS, SOIL CLASSIFICATION, EXCAVATION, SEDIMENTS, CHEMICAL ANALYSIS, WASTE TREATMENT, CHANNELS(WATERWAYS), PH FACTOR, LEACHING, HAZARDOUS MATERIALS, AERATION, MATERIALS HANDLING, OREGON, LAGOONS(LANDFORMS).

Subject Categories : Agricultural Chemistry
      Microbiology
      Ammunition and Explosives
      Solid Wastes Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE