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Recent advances in liquid membranes and their applications in nuclear waste processing: an overview

Abstract

Membrane extraction, combining the processes of extraction, scrubbing and stripping in a single step, demonstrates the inherent capability of solvent extraction under non-equilibrium conditions. Permeant transport across various liquid membrane (LM) configurations, viz. bulk liquid, emulsion liquid and supported liquid membranes has great potential for applications in the nuclear field particularly in the decontamination of low and medium level radioactive wastes. Potential practical applications of such membranes have also been envisaged in the recovery of metals from hydrometallurgical leach solutions and in plutonium and americium removal from nitric acid waste streams generated by plutonium recovery operations in the PUREX process. Studies carried out have established that minor actinides like uranium, plutonium and americium from process effluents can easily be transported across polymeric and liquid type membranes through the use of specific ionophores dissolved in an appropriate liquid membrane phase. The possibility of the membrane extraction of fission palladium from acidic wastes has also been demonstrated by the use of some soft bases. An overview of these results and also some of the recent radiochemical applications of energy - efficient LM processes including directions for future research are outlined in this paper. (author). 19 refs., 1 fig., 2 tabs.
Authors:
Shukla, J P; Iyer, R H [1] 
  1. Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai (India)
Publication Date:
Jun 01, 1994
Product Type:
Conference
Report Number:
CONF-9406439-
Reference Number:
SCA: 052001; 400105; PA: AIX-29:018169; EDB-98:065897; SN: 98001952227
Resource Relation:
Conference: ACE-94: advances in chemical engineering in nuclear and process industries, Mumbai (India), 9-11 Jun 1994; Other Information: DN: 19 refs., 1 fig., 2 tabs.; PBD: Jun 1994; Related Information: Is Part Of Advances in chemical engineering in nuclear and process industries; PB: 628 p.
Subject:
05 NUCLEAR FUELS; 40 CHEMISTRY; ANTIMONY 125; CESIUM 137; DECONTAMINATION; INTERMEDIATE-LEVEL RADIOACTIVE WASTES; LOW-LEVEL RADIOACTIVE WASTES; MEMBRANES; PERMEABILITY; RADIOACTIVE WASTE PROCESSING; RUTHENIUM 106; SOLVENT EXTRACTION
OSTI ID:
615524
Research Organizations:
Board of Research in Nuclear Sciences, Department of Atomic Energy, Mumbai (India).
Country of Origin:
India
Language:
English
Other Identifying Numbers:
TRN: IN9800282018169
Submitting Site:
INIS
Size:
pp. 426-432
Announcement Date:

Citation Formats

Shukla, J P, and Iyer, R H. Recent advances in liquid membranes and their applications in nuclear waste processing: an overview. India: N. p., 1994. Web.
Shukla, J P, & Iyer, R H. Recent advances in liquid membranes and their applications in nuclear waste processing: an overview. India.
Shukla, J P, and Iyer, R H. 1994. "Recent advances in liquid membranes and their applications in nuclear waste processing: an overview." India.
@misc{etde_615524,
title = {Recent advances in liquid membranes and their applications in nuclear waste processing: an overview}
author = {Shukla, J P, and Iyer, R H}
abstractNote = {Membrane extraction, combining the processes of extraction, scrubbing and stripping in a single step, demonstrates the inherent capability of solvent extraction under non-equilibrium conditions. Permeant transport across various liquid membrane (LM) configurations, viz. bulk liquid, emulsion liquid and supported liquid membranes has great potential for applications in the nuclear field particularly in the decontamination of low and medium level radioactive wastes. Potential practical applications of such membranes have also been envisaged in the recovery of metals from hydrometallurgical leach solutions and in plutonium and americium removal from nitric acid waste streams generated by plutonium recovery operations in the PUREX process. Studies carried out have established that minor actinides like uranium, plutonium and americium from process effluents can easily be transported across polymeric and liquid type membranes through the use of specific ionophores dissolved in an appropriate liquid membrane phase. The possibility of the membrane extraction of fission palladium from acidic wastes has also been demonstrated by the use of some soft bases. An overview of these results and also some of the recent radiochemical applications of energy - efficient LM processes including directions for future research are outlined in this paper. (author). 19 refs., 1 fig., 2 tabs.}
place = {India}
year = {1994}
month = {Jun}
}