干旱区生态环境知识资源中心(Arid): Long-term biobarriers to plant and animal intrusions of uranium tailings. [24% trifluralin, 18% carbon black, and 58% polymer]

Arid

DOI	10.2172/6919891
报告编号	DOE/UMT-0209; PNL-4340
来源ID	OSTI_ID: 6919891
	Long-term biobarriers to plant and animal intrusions of uranium tailings. [24% trifluralin, 18% carbon black, and 58% polymer]
	Cline, J.F.; Burton, F.G.; Cataldo, D.A.; Skiens, W.E.; Gano, K.A.
英文摘要	The objective of this project was to develop and evaluate the effectiveness of physical and chemical barriers designed to prevent plant and animal breachment of uranium mill tailings containment systems for an extended period of time. A polymeric carrier/biocide delivery system was developed and tested in the laboratory, greenhouse and field. A continuous flow technique was established to determine the release rates of the biocides from the PCD systems; polymeric carrier specifications were established. Studies were conducted to determine effective biocide concentrations required to produce a phytotoxic response and the relative rates of phytotoxin degradation resulting from chemical and biological breakdown in soils. The final PCD system developed was a pelletized system containing 24% trifluralin, 18% carbon black and 58% polymer. Pellets were placed in the soil at the Grand Junction U-tailings site at one in. and two in. intervals. Data obtained in the field determined that the pellets released enough herbicide to the soil layer to stop root elongation past the barrier. Physical barriers to subsurface movement of burrowing animals were investigated. Small crushed stone (1 to 1 1/2 in. diameter) placed over asphalt emulsion and multilayer soil seals proved effective as barriers to a small mammal (ground squirrels) but were not of sufficient size to stop a larger animal (the prairie dog). No penetrations were made through the asphalt emulsion or the clay layer of the multilayer soil seals by either of the two mammals tested. A literature survey was prepared and published on the burrowing habits of the animals that may be found at U-tailings sites.
出版年	1982
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES ; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS ; CONTAINMENT SYSTEMS ; TESTING ; HERBICIDES ; MILL TAILINGS ; ASPHALTS ; INTRUSION ; PLANTS ; ROCKS ; RODENTS ; ROOTS ; SEALING MATERIALS ; SOILS ; ANIMALS ; BITUMENS ; CONTAINMENT ; ENGINEERED SAFETY SYSTEMS ; MAMMALS ; MATERIALS ; ORGANIC COMPOUNDS ; OTHER ORGANIC COMPOUNDS ; PESTICIDES ; SOLID WASTES ; TAILINGS ; TAR ; VERTEBRATES ; WASTES 052002* -- Nuclear Fuels-- Waste Disposal & Storage ; 053000 -- Nuclear Fuels-- Environmental Aspects
URL	http://www.osti.gov/scitech/servlets/purl/6919891
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/263356
推荐引用方式 GB/T 7714	Cline, J.F.,Burton, F.G.,Cataldo, D.A.,et al. Long-term biobarriers to plant and animal intrusions of uranium tailings. [24% trifluralin, 18% carbon black, and 58% polymer],1982.