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Zeta potential control in decontamination with inorganic membranes and inorganic adsorbents

Abstract

The application of some advanced separation processes such as microfiltration and ultrafiltration, electroosmosis and electrodialysis for treating nuclear waste from different aqueous streams is under examination at the Chilean Commission for Nuclear Energy. The application of these techniques can be extended to regular industrial wastes when economically advisable. This report deals mainly with electrodialysis, electroosmosis and adsorption with inorganic materials. Special attention is paid to zeta potential control as a driving factor to electroosmosis. For radioactive contaminants that are present in the form of cations, anions, non-ionic solutions, colloids and suspended matter, appropriate combination of the processes may considerably increase the efficiency of processes used. As an example, colloids and suspended particles may be retained in porous ceramic membranes by nanofiltration, ultrafiltration or microfiltration depending on the particle size of the particles. The control of zeta potential by acting in the solid phase or else on the liquid phase has been studied; a mathematical model to predict electrodialysis data has been developed, and finally, the use of a home-made inorganic adsorbent illustrated. The effect of gamma irradiation on the membranes has also been studied. Properties such as salt retention, water flux and pore size diameter determined on both organic and  More>>
Authors:
Andalaft, E; Vega, R; Correa, M; Araya, R; Loyola, P [1] 
  1. Comision Chilena de Energia Nuclear, Santiago (Chile)
Publication Date:
Feb 01, 1997
Product Type:
Technical Report
Report Number:
IAEA-TECDOC-929
Reference Number:
SCA: 052001; 400202; PA: AIX-28:034827; EDB-97:060136; SN: 97001775315
Resource Relation:
Other Information: PBD: Feb 1997; Related Information: Is Part Of Treatment technologies for low and intermediate level waste from nuclear applications. Final report of a co-ordinated research programme 1991-1996; PB: 207 p.
Subject:
05 NUCLEAR FUELS; 40 CHEMISTRY; INORGANIC ION EXCHANGERS; RADIOACTIVE WASTE PROCESSING; RADIOACTIVE WASTES; ELECTRODIALYSIS; EXPERIMENTAL DATA; FILTRATION; MATHEMATICAL MODELS; MEMBRANES; OSMOSIS
OSTI ID:
462465
Research Organizations:
International Atomic Energy Agency, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1011-4289; Other: ON: DE97622561; TRN: XA9743736034827
Availability:
INIS; OSTI as DE97622561
Submitting Site:
INIS
Size:
pp. 15-32
Announcement Date:

Citation Formats

Andalaft, E, Vega, R, Correa, M, Araya, R, and Loyola, P. Zeta potential control in decontamination with inorganic membranes and inorganic adsorbents. IAEA: N. p., 1997. Web.
Andalaft, E, Vega, R, Correa, M, Araya, R, & Loyola, P. Zeta potential control in decontamination with inorganic membranes and inorganic adsorbents. IAEA.
Andalaft, E, Vega, R, Correa, M, Araya, R, and Loyola, P. 1997. "Zeta potential control in decontamination with inorganic membranes and inorganic adsorbents." IAEA.
@misc{etde_462465,
title = {Zeta potential control in decontamination with inorganic membranes and inorganic adsorbents}
author = {Andalaft, E, Vega, R, Correa, M, Araya, R, and Loyola, P}
abstractNote = {The application of some advanced separation processes such as microfiltration and ultrafiltration, electroosmosis and electrodialysis for treating nuclear waste from different aqueous streams is under examination at the Chilean Commission for Nuclear Energy. The application of these techniques can be extended to regular industrial wastes when economically advisable. This report deals mainly with electrodialysis, electroosmosis and adsorption with inorganic materials. Special attention is paid to zeta potential control as a driving factor to electroosmosis. For radioactive contaminants that are present in the form of cations, anions, non-ionic solutions, colloids and suspended matter, appropriate combination of the processes may considerably increase the efficiency of processes used. As an example, colloids and suspended particles may be retained in porous ceramic membranes by nanofiltration, ultrafiltration or microfiltration depending on the particle size of the particles. The control of zeta potential by acting in the solid phase or else on the liquid phase has been studied; a mathematical model to predict electrodialysis data has been developed, and finally, the use of a home-made inorganic adsorbent illustrated. The effect of gamma irradiation on the membranes has also been studied. Properties such as salt retention, water flux and pore size diameter determined on both organic and inorganic membranes before and after irradiation indicate deterioration of the organic membrane. (author). 13 refs, 15 figs, 2 tabs.}
place = {IAEA}
year = {1997}
month = {Feb}
}