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Title: Method for disposing of hazardous wastes

Abstract

A method and system for long-term control of root growth without killing the plants bearing those roots involves incorporating a 2,6-dinitroaniline in a polymer and disposing the polymer in an area in which root control is desired. This results in controlled release of the substituted aniline herbicide over a period of many years. Herbicides of this class have the property of preventing root elongation without translocating into other parts of the plant. The herbicide may be encapsulated in the polymer or mixed with it. The polymer-herbicide mixture may be formed into pellets, sheets, pipe gaskets, pipes for carrying water, or various other forms. The invention may be applied to other protection of buried hazardous wastes, protection of underground pipes, prevention of root intrusion beneath slabs, the dwarfing of trees or shrubs and other applications. The preferred herbicide is 4-difluoromethyl-N,N-dipropyl- 2,6-dinitro-aniline, commonly known as trifluralin.

Inventors:
 [1];  [2];  [3];  [4]
  1. (West Richland, WA)
  2. (Kennewick, WA)
  3. (Prosser, WA)
  4. (Richland, WA)
Publication Date:
Research Org.:
BATTELLE MEMORIAL INSTITUTE
OSTI Identifier:
870057
Patent Number(s):
US 5449250
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; disposing; hazardous; wastes; long-term; control; root; growth; killing; plants; bearing; roots; involves; incorporating; 6-dinitroaniline; polymer; desired; results; controlled; release; substituted; aniline; herbicide; period; herbicides; property; preventing; elongation; translocating; plant; encapsulated; mixed; polymer-herbicide; mixture; formed; pellets; sheets; pipe; gaskets; pipes; carrying; water; various; forms; applied; protection; buried; underground; prevention; intrusion; beneath; slabs; dwarfing; trees; shrubs; applications; preferred; 4-difluoromethyl-n; n-dipropyl-; 6-dinitro-aniline; commonly; trifluralin; hazardous waste; hazardous wastes; controlled release; root growth; underground pipe; long-term control; root control; roots involves; plants bearing; involves incorporating; /405/588/

Citation Formats

Burton, Frederick G., Cataldo, Dominic A., Cline, John F., and Skiens, W. Eugene. Method for disposing of hazardous wastes. United States: N. p., 1995. Web.
Burton, Frederick G., Cataldo, Dominic A., Cline, John F., & Skiens, W. Eugene. Method for disposing of hazardous wastes. United States.
Burton, Frederick G., Cataldo, Dominic A., Cline, John F., and Skiens, W. Eugene. Sun . "Method for disposing of hazardous wastes". United States. https://www.osti.gov/servlets/purl/870057.
@article{osti_870057,
title = {Method for disposing of hazardous wastes},
author = {Burton, Frederick G. and Cataldo, Dominic A. and Cline, John F. and Skiens, W. Eugene},
abstractNote = {A method and system for long-term control of root growth without killing the plants bearing those roots involves incorporating a 2,6-dinitroaniline in a polymer and disposing the polymer in an area in which root control is desired. This results in controlled release of the substituted aniline herbicide over a period of many years. Herbicides of this class have the property of preventing root elongation without translocating into other parts of the plant. The herbicide may be encapsulated in the polymer or mixed with it. The polymer-herbicide mixture may be formed into pellets, sheets, pipe gaskets, pipes for carrying water, or various other forms. The invention may be applied to other protection of buried hazardous wastes, protection of underground pipes, prevention of root intrusion beneath slabs, the dwarfing of trees or shrubs and other applications. The preferred herbicide is 4-difluoromethyl-N,N-dipropyl- 2,6-dinitro-aniline, commonly known as trifluralin.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

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