Process Engineering Journal
Volume 1, Numéro 1, Pages 19-27
2014-06-15
Extraction Of Organic Pollutants From Water By Emulsion Liquid Membrane
Authors : Hamdaoui Oualid .
Abstract
Emulsion liquid membrane (ELM) or surfactant liquid membrane has gained much attention as an advanced extraction process for the removal of pollutants present in wastewater. In the ELM technique, both extraction and stripping stages are combined in one step, which leads to simultaneous purification and concentration of the solute. ELM is not only an important technique for concentration, separation and recovery, but also is of fundamental importance from a process engineering point of view in understanding the transport mechanisms. In this work, the results obtained by our research group on the removal of several classes of organic pollutants from water by emulsion liquid membrane were presented. The selected organic contaminants are priority pollutants (4-nitrophenol and aniline), cationic dyes (methylene blue, rhodamine b, malachite green and basic red 29), anionic dyes (Congo red and acid blue 25), pharmaceuticals (paracetamol, ibuprofen and ketoprofen) and endocrine disrupting compounds (propylparaben, 4-cumylphenol and bisphenol A).
Keywords
Extraction; Organic pollutants; Emulsion liquid membrane; Stability; Stripping
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