Biobarriers used in shallow burial ground stabilization

Journal Article · Sun Aug 01 04:00:00 EDT 1982 · Nucl. Technol.; (United States)

OSTI ID:6011570

Cline, J F; Burton, F G; Cataldo, D A; Skiens, W E

Three types of barriers to plant root growth were investigated. Previously, a long-term barrier was created by placing loose rock between buried waste and topsoil; this barrier successfully prevented plant root and animal intrusions into buried waste. Then an intermediate-term barrier was made by encapsulating phytotoxin into a polymer. The polymer regulated phytotoxin release and also acted to prolong the toxin's effectiveness. A short-term barrier was made by spraying phytotoxin directly onto a thin layer of soil between the waste and topsoil. Trifluralin proved to be the most effective of seven phytotoxins studied because it prevented root penetration of the barrier. Trifluralin is not translocatable and allows nonaffected plant parts to grow normally.

• Research Organization: Pacific Northwest Laboratory, P.O. Box 999, Richland, Washington 99352
• OSTI ID: 6011570
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 58:2; ISSN NUTYB
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
553000 -- Agriculture & Food Technology
60 APPLIED LIFE SCIENCES
ANTIGENS
FERTILIZERS
GROWTH
INHIBITION
MANAGEMENT
MATERIALS
PLANT GROWTH
POLYMERS
RADIOACTIVE WASTE DISPOSAL
ROCKS
ROOTS
STABILIZATION
TOXIC MATERIALS
TOXINS
UNDERGROUND DISPOSAL
WASTE DISPOSAL
WASTE MANAGEMENT