Blood, sweat, tears and success of technology transfer long-term controlled-release of herbicides: Root-growth-inhibiting biobarrier technology

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:6861413

Van Voris, P; Cataldo, D A; Burton, F G; Skeins, W E

Through the unique combination of polymers with a herbicidally active dinitroaniline, a cylinderical pellet (9mm long and 9mm in diameter) was developed that continuously releases a herbicide for a period of up to 100 years. Equilibrium concentration of the herbicide in soil adjacent to the pellet and the bioactive lifetime of the device cam be adjusted by changing the size of the pellet; the type of polymer; the type, quality, and quantity of carrier; and/or the concentration and type of dinitroaniline used. Commercial products that have been developed under a Federal Technology Transfer Program that utilize this technology include: (1) ROOT-SHIELD, a root repelling sewer gasket for concrete, clay, and PVC sewer lines, (2) BIOBARRIER, a spun-bonded polypropylene geotextile fabric developed to prevent root growth from invading septic tanks; penetrating under roadways, and along the edge of sidewalks, airport runways, and tennis courts, and for landscaped areas; and (3) ROOT-GUARD, a plastic drip irrigation emitter designed to protect buried drip irrigation systems from being plugged by roots. 17 refs., 4 figs., 6 tabs.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6861413
• Report Number(s): PNL-SA-16124; CONF-880631-52; ON: DE89000398
• Resource Relation: Conference: 29. annual meeting of the Institute of Nuclear Materials Management, Las Vegas, NV, USA, 26 Jun 1988; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANILINE
LIFETIME
HERBICIDES
ORGANIC NITROGEN COMPOUNDS
ROOTS
ENVIRONMENTAL EXPOSURE PATHWAY
GROWTH
PESTICIDES
PLANTS
POLYMERS
RADIOACTIVE WASTE DISPOSAL
RADON 222
RESEARCH PROGRAMS
ALPHA DECAY RADIOISOTOPES
AMINES
AROMATICS
DAYS LIVING RADIOISOTOPES
EVEN-EVEN NUCLEI
HEAVY NUCLEI
ISOTOPES
MANAGEMENT
NUCLEI
ORGANIC COMPOUNDS
RADIOISOTOPES
RADON ISOTOPES
WASTE DISPOSAL
WASTE MANAGEMENT
560300* - Chemicals Metabolism & Toxicology
360603 - Materials- Properties
400201 - Chemical & Physicochemical Properties