Separation of silver from photographic wastes by emulsion liquid membrane system
Separation of silver from liquid photographic waste containing various ions such as silver, ferum, sodium, and potassium by an emulsion liquid membrane containing Cyanex 302 as a carrier has been carried out. The important parameters governing the extraction behavior of silver have been investigated...
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my.utm.90262017-10-23T08:31:29Z http://eprints.utm.my/id/eprint/9026/ Separation of silver from photographic wastes by emulsion liquid membrane system Othman, Norasikin Mat, Hanapi Goto, Masahiro Separation of silver from liquid photographic waste containing various ions such as silver, ferum, sodium, and potassium by an emulsion liquid membrane containing Cyanex 302 as a carrier has been carried out. The important parameters governing the extraction behavior of silver have been investigated. These parameters were agitation speed, surfactant concentration, carrier concentration, type of diluents, treat ratio, and acid types in the stripping solution. The process has been conducted in a batch system using a mixer-settler. The results showed that the mobile carrier Cyanex 302 is selective towards silver compared to the other metals in the photographic waste. The highest silver extraction is obtained by using 0.05 M Cyanex 302, 3% (w/v) Span 80, 4.166 Hz (250 rpm) stirring speed, 1.0 M thiourea in 1.0 M H2SO4 stripping agent, 1:5 of treat ratio, and kerosene as a diluent. Elsevier BV 2006 Article PeerReviewed Othman, Norasikin and Mat, Hanapi and Goto, Masahiro (2006) Separation of silver from photographic wastes by emulsion liquid membrane system. Journal of Membranes Science , 282 (1-2). pp. 171-177. ISSN 0376-7388 http://dx.doi.org/10.1016/j.memsci.2006.05.020 10.1016/j.memsci.2006.05.020 |
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Separation of silver from liquid photographic waste containing various ions such as silver, ferum, sodium, and potassium by an emulsion liquid membrane containing Cyanex 302 as a carrier has been carried out. The important parameters governing the extraction behavior of silver have been investigated. These parameters were agitation speed, surfactant concentration, carrier concentration, type of diluents, treat ratio, and acid types in the stripping solution. The process has been conducted in a batch system using a mixer-settler. The results showed that the mobile carrier Cyanex 302 is selective towards silver compared to the other metals in the photographic waste. The highest silver extraction is obtained by using 0.05 M Cyanex 302, 3% (w/v) Span 80, 4.166 Hz (250 rpm) stirring speed, 1.0 M thiourea in 1.0 M H2SO4 stripping agent, 1:5 of treat ratio, and kerosene as a diluent. |
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Article |
author |
Othman, Norasikin Mat, Hanapi Goto, Masahiro |
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Othman, Norasikin Mat, Hanapi Goto, Masahiro Separation of silver from photographic wastes by emulsion liquid membrane system |
author_facet |
Othman, Norasikin Mat, Hanapi Goto, Masahiro |
author_sort |
Othman, Norasikin |
title |
Separation of silver from photographic wastes by emulsion liquid membrane system |
title_short |
Separation of silver from photographic wastes by emulsion liquid membrane system |
title_full |
Separation of silver from photographic wastes by emulsion liquid membrane system |
title_fullStr |
Separation of silver from photographic wastes by emulsion liquid membrane system |
title_full_unstemmed |
Separation of silver from photographic wastes by emulsion liquid membrane system |
title_sort |
separation of silver from photographic wastes by emulsion liquid membrane system |
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Elsevier BV |
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2006 |
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http://eprints.utm.my/id/eprint/9026/ http://dx.doi.org/10.1016/j.memsci.2006.05.020 |
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