Supported liquid membranes technologies in metals removal from liquid effluents
نویسندگان
چکیده
منابع مشابه
Nitrate removal using supported liquid membranes: transport mechanism
A new method is developed for the removal of nitrate ions from water. Nitrate ions can be removed from water almost completely, with a mobile carrier, by counter-transport of chloride ions through a supported liquid membrane. The transport characteristics of this process, in which the water phases are flowing parallel to flat membranes, are described. The results show that depending on the expe...
متن کاملRemoval of cadmium (II) from aqueous waste effluents by using supported liquid membrane technology
There is a growing need to develop technologies that can separate and selectively remove hazardous chemical species from waste effluents. Selective removal of cadmium ions through a supported liquid membrane (SLM) containing triethanolamine (TEA) as a mobile carrier has been studied. The effects of Cd(II) concentration, HCl in feed and carrier concentration in membrane has been studied. Cd(II) ...
متن کاملSupported liquid membranes : instability effects
The instability behaviour of several supported liquid membranes (SLMs) has been studied for a system in which nitrate ions are removed from an aqueous feed phase and concentrated in a stripping phase. The composition of the aqueous phases and of the membrane liquid has been determined after the aqueous phases had flowed parallel to the membranes for a period of six days. From the experimental d...
متن کاملArsenic Removal by Liquid Membranes
Water contamination with harmful arsenic compounds represents one of the most serious calamities of the last two centuries. Natural occurrence of the toxic metal has been revealed recently for 21 countries worldwide; the risk of arsenic intoxication is particularly high in Bangladesh and India but recently also Europe is facing similar problem. Liquid membranes (LMs) look like a promising alter...
متن کاملSupported liquid membranes: stabilization by gelation
A new method has been developed to increase the stability of supported liquid membranes. By applying a homogeneous gel network in the pores of the support both the mechanical stability (against liquid displacement) and the long term permeability increase substantially. The flux decreases only slightly because of the open structure of the gel network. A second technique, by which a thin dense ge...
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ژورنال
عنوان ژورنال: Revista de Metalurgia
سال: 2011
ISSN: 1988-4222,0034-8570
DOI: 10.3989/revmetalmadrid.1062