Title of article :
Modeling of Selective Silver Extraction from Photographic Waste by Emulsion Liquid Membrane System
Author/Authors :
OTHMAN, NORASIKIN Universiti Teknologi Malaysia - Faculty of Chemical and Natural Resources Engineering - Department of Chemical Engineering, Malaysia , MAT, HANAPI Universiti Teknologi Malaysia - Faculty of Chemical and Natural Resources Engineering - 3Department of Chemical Engineering, Malaysia , HIT, KING HUNG Universiti Teknologi Malaysia - Faculty of Chemical and Natural Resources Engineering - Department of Chemical Engineering, Malaysia
Abstract :
Emulsion liquid membrane (ELM) extraction has been recognized to be potential process for industrial wastes treatment and recovery of precious metals. This process has enough ability to separate selectively and concentrating rapidly of the metals through its very thin layer liquid membrane with large interfacial area. An attempt was made to recover silver from liquid photographic wastes using Cyanex 302 as a mobile carrier. A model was developed to simulate the batch ELM extraction. Numerical solutions are presented for the non-linear equations. The model predictions fit with the experimental data quite well. The results showed that the important variables affecting the emulsion liquid membrane process are surfactant concentration, carrier concentration, agitation level, stripping solution type and treat ratio between emulsion and feed phase. The results also showed Cyanex 302 is selective towards silver and almost completely extract silver from liquid photographic wastes at optimum conditions
Keywords :
Modeling , emulsion liquid membrane extraction , silver extraction , photographic waste , Cyanex 302
Journal title :
Jurnal Teknologi :F
Journal title :
Jurnal Teknologi :F
