Pertraction of Vanadium (V) from dilute acidic media by emulsion liquid membrane containing a commercial extractant

Although textile dyes is basically available in very low concentration (10-200 ppm); it should be removed due to the toxicity to human body and environment. Among the existing methods, emulsion liquid membrane (ELM) is a promising method by providing high interfacial area and the ability to remove a very low concentration of the solute. The optimal emulsions were produced using commercially supplied homogeniser. Initially, methylene blue in simulated wastewater was extracted using a Taylor-Couette column. Methylene blue concentration was determined using spectrophotometer. Complete extraction was performed in the designed column. The research obtained optimal extraction efficiency of about 99% at external phase pH of 10, carrier concentration of 9 wt. %, HCl concentration of 0.5 M, initial feed concentration of 20 ppm, volume ratio of emulsion to feed phase of 1:5, extraction time of 5 min, and extraction speed of 600 rpm.

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Separation of Cobalt from a Nickel-Hydrometallurgical Effluent Using an Emulsion Liquid Membrane

Separation Science and Technology ◽

10.1081/ss-120023417 ◽

2003 ◽

Vol 38 (14) ◽

pp. 3553-3574 ◽

Cited By ~ 23

Author(s):

Jianzhang Fang ◽

Mingyu Li ◽

Zhenghe Xu

Keyword(s):

Liquid Membrane ◽

Emulsion Liquid Membrane

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Use of Emulsion Liquid Membrane Systems in Chemical and Biotechnological Separations

Handbook of Membrane Separations ◽

10.1201/9781420009484.ch25 ◽

2008 ◽

pp. 709-740 ◽

Cited By ~ 1

Author(s):

Jilska Perera ◽

Geoff Stevens

Keyword(s):

Liquid Membrane ◽

Membrane Systems ◽

Emulsion Liquid Membrane

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CADMIUM REMOVAL USING VEGETABLE OIL BASED EMULSION LIQUID MEMBRANE (ELM): MEMBRANE BREAKAGE INVESTIGATION

Jurnal Teknologi ◽

10.11113/jt.v75.3633 ◽

2015 ◽

Vol 75 (1) ◽

Cited By ~ 4

Author(s):

A. L. Ahmad ◽

M. M. H. Shah Buddin ◽

B. S. Ooi ◽

Adhi Kusumastuti

Keyword(s):

Vegetable Oil ◽

Liquid Membrane ◽

Corn Oil ◽

Volume Ratio ◽

Aliquat 336 ◽

Emulsion Liquid Membrane ◽

Cadmium Removal ◽

Internal Phase ◽

External Phase ◽

Span 80

The aim of this research is to quantify the occurrence of membrane breakage in vegetable oil based Emulsion Liquid Membrane (ELM). Basically, ELM consists of three main phases; internal, external and membrane. In this work, the membrane phase was prepared by dissolving Span 80 as surfactant and Aliquat 336 as carrier in commercial grade corn oil. As a way to promote sustainable development, vegetable oil which is environmentally benign diluent was incorporated in the formulation of ELM. The influence of several important parameters towards membrane breakage were studied. They are carrier and surfactant concentration, W/O volume ratio, emulsification time, internal phase concentration as well as stirring speed. Based on the data obtained, emulsion prepared using 4 wt% Aliquat 336 and 3 wt% Span 80 resulted in the most stable emulsion with only 0.05% membrane breakage. The emulsion was produced using W/O volume ratio of 1/3 and it was homogenized with the assistance of ultrasound for 15 min. Moreover, emulsion produced able to provide a fair balance between emulsion stability and Cd(II) permeability as it able to remove 98.20% Cd(II) ions from the external phase.

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