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Title: Method for treating liquid wastes

Abstract

The method of treating liquid waste in a media is accomplished by exposing the media to phosphinimines and sequestering .sup.99 Tc from the media by the phosphinimine (PN) functionalities. The system for treating the liquid waste in the media includes extraction of .sup.99 TcO.sub.4.sup.- from aqueous solutions into organic solvents or mixed organic/polar media, extraction of .sup.99 Tc from solutions on a solid matrix by using a container containing PN functionalities on solid matrices including an inlet and outlet for allowing flow of media through an immobilized phosphinimine ligand system contained within the container. Also, insoluble suspensions of phosphinimine functionalities on solid matrices in liquid solutions or present on supported liquid membranes (SLM) can be used to sequester .sup.99 Tc from those liquids.

Inventors:
 [1];  [1];  [1];  [1]
  1. Columbia, MO
Issue Date:
Research Org.:
Univ. of Missouri, Columbia, MO (United States)
OSTI Identifier:
870223
Patent Number(s):
5478474
Assignee:
Curators of University of Missouri (Columbai, MO)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
DOE Contract Number:  
FG02-89ER60875
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; treating; liquid; wastes; waste; media; accomplished; exposing; phosphinimines; sequestering; 99; tc; phosphinimine; pn; functionalities; extraction; tco; aqueous; solutions; organic; solvents; mixed; polar; solid; matrix; container; containing; matrices; including; inlet; outlet; allowing; flow; immobilized; ligand; contained; insoluble; suspensions; supported; membranes; slm; sequester; liquids; liquid wastes; organic solvents; liquid solution; supported liquid; organic solvent; aqueous solution; aqueous solutions; liquid membrane; liquid waste; container containing; solid matrix; treating liquid; liquid membranes; mixed organic; /210/

Citation Formats

Katti, Kattesh V, Volkert, Wynn A, Singh, Prahlad, and Ketring, Alan R. Method for treating liquid wastes. United States: N. p., 1995. Web.
Katti, Kattesh V, Volkert, Wynn A, Singh, Prahlad, & Ketring, Alan R. Method for treating liquid wastes. United States.
Katti, Kattesh V, Volkert, Wynn A, Singh, Prahlad, and Ketring, Alan R. Sun . "Method for treating liquid wastes". United States. https://www.osti.gov/servlets/purl/870223.
@article{osti_870223,
title = {Method for treating liquid wastes},
author = {Katti, Kattesh V and Volkert, Wynn A and Singh, Prahlad and Ketring, Alan R},
abstractNote = {The method of treating liquid waste in a media is accomplished by exposing the media to phosphinimines and sequestering .sup.99 Tc from the media by the phosphinimine (PN) functionalities. The system for treating the liquid waste in the media includes extraction of .sup.99 TcO.sub.4.sup.- from aqueous solutions into organic solvents or mixed organic/polar media, extraction of .sup.99 Tc from solutions on a solid matrix by using a container containing PN functionalities on solid matrices including an inlet and outlet for allowing flow of media through an immobilized phosphinimine ligand system contained within the container. Also, insoluble suspensions of phosphinimine functionalities on solid matrices in liquid solutions or present on supported liquid membranes (SLM) can be used to sequester .sup.99 Tc from those liquids.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

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Works referenced in this record:

The measurement of technetium-99 and iodine-129 in waste water from pressurized nuclear-power reactors
journal, January 1992


Synthesis and characterization of a neutral and lipophilic Ph3PN99mTcO3 complex
journal, January 1995


Adsorption of pertechnetate ion on active carbon from acids and their salt solutions
journal, December 1991


Organometallic Phosphinimines as Building Blocks for Potential New Radiopharmaceuticals. Synthesis, Structure and Reactivity of Ph 3 P=NH 2 + ReO 4 -
journal, October 1993


Remediation of hazardous waste sites
journal, February 1992


Technetium-99 Removal from Process Solutions and Contaminated Groundwater
journal, January 1993


Application of Supported Liquid Membranes for Removal of Uranium from Groundwater
journal, October 1990