Study on removal of cadmium from wastewater by emulsion liquid membrane.
Removal of cadmium from wastewater using emulsion liquid membrane (ELM) is studied in the present study. A polyamine-type surfactant was used for stabilizing the emulsion phase. Tri-iso-octyl amine (TIOA) has been used as a carrier for transferring of cadmium through the membrane. The results show good performance in the separation process. To determine the optimum operation conditions, the effect of several parameters such as surfactant concentration, carrier concentration, pH of external and internal phases, oil to internal phase volume ratio, emulsion to external phase volume ratio, solvent type, solute concentration, presence of iodide and chloride in external phase, and mixing conditions have been investigated.
Mortaheb
Hamid R
HR
Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran. mortaheb@ccerci.ac.ir
Kosuge
Hitoshi
H
Mokhtarani
Babak
B
Amini
Mohammad H
MH
Banihashemi
Hamid R
HR
D002104:Cadmium / Q000302:isolation & purification*; D004655:Emulsions; D007202:Indicators and Reagents; D007220:Industrial Waste / Q000517:prevention & control*; D008567:Membranes, Artificial; D013501:Surface-Active Agents; D014873:Water Pollutants / Q000302:isolation & purification*
D004655:Emulsions; D007202:Indicators and Reagents; D007220:Industrial Waste; D008567:Membranes, Artificial; D013501:Surface-Active Agents; D014873:Water Pollutants; D002104:Cadmium