Progress of Cryogenics and Isotopes Separation , ISSN: 1582-2575
2016, Volume 19, Issue 1

The Removal of Heavy Metals Using the Bulk Liquid Membrane Technique

Cristina Monica Mirea , Ioana Diaconu * , Elena Ruse , Ecaterina Anca Serban , Dumitra Daniela Clej , George Alexandru Popa , Daniela Florentina Popa (Enache) , Gheorghe Nechifor

University Politehnica of Bucharest, Department of Analytical Chemistry and Environmental Engineering, 1-3 Gh. Polizu Str., 011061, Bucharest, Romania

*Corresponding author: Ioana Diaconu, E-mail:

Published: May 2016


In recent years, heavy metal pollution has become a worldwide problem due to their high toxic potential and tendency to accumulate in the body. In the present paper was studied the possibility of removing heavy metals using the bulk liquid membrane technique,  which proved to be a useful tool in many applications of this type. The transport of a mixture of three metal cations (Mn (II), Fe (II) and Fe (III)) through the bulk liquid membrane was tested. The transport studies were carried out in the membrane system consisting of: the source phase - solution of Mn (II), Fe (II) and Fe (III) in hydrochloric acid medium, the membrane - solution of trioctylmethylammonium chloride (Aliquat 336) in chloroform, the receiving phase – solution of dilute hydrochloric acid. In optimal transport conditions, efficiencies of less than 10% for the removal of Mn (II), of less than 30% for Fe (II) and of about 90% for Fe (III) were obtained.


Heavy metals, iron, manganese, liquid membrane, bulk liquid membrane

Tag search Heavy metals iron manganese liquid membrane bulk liquid membrane