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Title: Removal of actinides from dilute waste waters using polymer filtration

Abstract

More stringent US Department of Energy discharge regulations for waste waters containing radionuclides (30 pCi/L total alpha) require the development of new processes to meet the new discharge limits for actinide metal ions, particularly americium and plutonium, while minimizing waste. We have been investigating a new technology, polymer filtration, that has the potential for effectively meeting these new limits. Traditional technology uses basic iron precipitation which produces large amounts of waste sludge. The new technology is based on using water-soluble chelating polymers with ultrafiltration for physical separation. The actinide metal ions are selectively bound to the polymer and can not pass through the membrane. Small molecules and nonbinding metals pass through the membrane. Advantages of polymer filtration technology compared to ion, exchange include rapid kinetics because the binding is occurring in a homogenous solution and no mechanical strength requirement on the polymer. We will present our results on the systematic development of a new class of water-soluble chelating polymers and their binding ability from dilute acid to near neutral waters.

Authors:
; ;  [1]
  1. Los Alamos National Lab., NM (United States)
Publication Date:
OSTI Identifier:
126621
Report Number(s):
CONF-950402-
TRN: 96:004646
Resource Type:
Conference
Resource Relation:
Conference: 209. American Chemical Society (ACS) national meeting, Anaheim, CA (United States), 2-6 Apr 1995; Other Information: PBD: 1995; Related Information: Is Part Of 209th ACS national meeting; PB: 2088 p.
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; AMERICIUM; FILTRATION; PLUTONIUM; ION EXCHANGE; POLYMERS; PRECIPITATION; ULTRAFILTRATION; WASTE WATER; CHELATING AGENTS; RADIOACTIVE WASTES

Citation Formats

Smith, B F, Robison, T W, and Gibson, R R. Removal of actinides from dilute waste waters using polymer filtration. United States: N. p., 1995. Web.
Smith, B F, Robison, T W, & Gibson, R R. Removal of actinides from dilute waste waters using polymer filtration. United States.
Smith, B F, Robison, T W, and Gibson, R R. Fri . "Removal of actinides from dilute waste waters using polymer filtration". United States.
@article{osti_126621,
title = {Removal of actinides from dilute waste waters using polymer filtration},
author = {Smith, B F and Robison, T W and Gibson, R R},
abstractNote = {More stringent US Department of Energy discharge regulations for waste waters containing radionuclides (30 pCi/L total alpha) require the development of new processes to meet the new discharge limits for actinide metal ions, particularly americium and plutonium, while minimizing waste. We have been investigating a new technology, polymer filtration, that has the potential for effectively meeting these new limits. Traditional technology uses basic iron precipitation which produces large amounts of waste sludge. The new technology is based on using water-soluble chelating polymers with ultrafiltration for physical separation. The actinide metal ions are selectively bound to the polymer and can not pass through the membrane. Small molecules and nonbinding metals pass through the membrane. Advantages of polymer filtration technology compared to ion, exchange include rapid kinetics because the binding is occurring in a homogenous solution and no mechanical strength requirement on the polymer. We will present our results on the systematic development of a new class of water-soluble chelating polymers and their binding ability from dilute acid to near neutral waters.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}

Conference:
Other availability
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