An overview on nanostructure-modified supported liquid membranes for the electromembrane extraction method

2022 ◽  
Author(s):  
Mir Saleh Hoseininezhad-Namin ◽  
Elaheh Rahimpour ◽  
Sibel Aysil Ozkan ◽  
Abolghasem Jouyban
Keyword(s):  
Extraction Method ◽  
Liquid Membrane ◽  
Supported Liquid Membrane ◽  
Liquid Membranes ◽  
Supported Liquid Membranes ◽  
Electromembrane Extraction

The efficiency of electromembrane extraction can be improved by modification of supported liquid membrane with various nanomaterials.

scholarly journals Pertraction of Co(II) through Novel Ultrasound Prepared Supported Liquid Membranes Containing D2EHPA. Optimization and Transport Parameters

Membranes ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 436
Author(s):  
Gerardo León ◽  
Asunción María Hidalgo ◽  
Beatriz Miguel ◽  
María Amelia Guzmán
Keyword(s):  
Boundary Layer ◽  
Sulfuric Acid ◽  
Carrier Concentration ◽  
Liquid Membrane ◽  
Supported Liquid Membrane ◽  
Liquid Membranes ◽  
Membrane Phase ◽  
Experimental Conditions ◽  
Supported Liquid Membranes ◽  
Aqueous Feed

Pertraction of Co(II) through novel supported liquid membranes prepared by ultrasound, using bis-2-ethylhexyl phosphoric acid as carrier, sulfuric acid as stripping agent and a counter-transport mechanism, is studied in this paper. Supported liquid membrane characterization through scanning electron microscopy, energy-dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy shows the impregnation of the microporous polymer support by the membrane phase by the action of ultrasound. The effect on the initial flux of Co(II) of different experimental conditions is analyzed to optimize the transport process. At these optimal experimental conditions (feed phase pH 6, 0.5 M sulfuric acid in product phase, carrier concentration 0.65 M in membrane phase and stirring speed of 300 rpm in both phases) supported liquid membrane shows great stability. From the relation between the inverse of Co(II) initial permeability and the inverse of the square of carrier concentration in the membrane phase, in the optimized experimental conditions, the transport resistance due to diffusion through both the aqueous feed boundary layer (3.7576 × 104 s·m−1) and the membrane phase (1.1434 × 1010 s·m−1), the thickness of the aqueous feed boundary layer (4.0206 × 10−6 m) and the diffusion coefficient of the Co(II)-carrier in the bulk membrane (4.0490 × 10−14 m2·s−1), have been determined.

Electromembrane extraction through a virtually rotating supported liquid membrane

2015 ◽  
Vol 37 (2) ◽  
pp. 339-346 ◽  
Author(s):  
Saied Saeed HosseinyDavarani ◽  
Hamid Reza Moazami ◽  
Elham Memarian ◽  
Saeed Nojavan
Keyword(s):  
Liquid Membrane ◽  
Supported Liquid Membrane ◽  
Electromembrane Extraction

Removal of Phenol from Wastewater by Supported Liquid Membrane Process

2015 ◽  
Vol 74 (7) ◽  
Author(s):  
Norasikin Othman ◽  
Ling Chui Heng ◽  
Norul Fatiha Mohamed Noah ◽  
Ooi Zing Yi ◽  
Norela Jusoh ◽  
...  
Keyword(s):  
Flow Rate ◽  
Palm Oil ◽  
Liquid Membrane ◽  
Aqueous Sodium Hydroxide ◽  
Supported Liquid Membrane ◽  
Liquid Membranes ◽  
Membrane Phase ◽  
Carcinogenic Effect ◽  
Feed Phase

Phenol is considered a pollutant in the environment due to its toxicity and carcinogenic effect. Supported liquid membrane (SLM) is a good and promising technology for the removal of phenol from wastewater because it provides maximum driving force for the separation of targeted solute and simultaneous extraction and stripping process which lead to excellent separation. In this research, kerosene and palm oil liquid membranes were used as liquid membrane phase, aqueous phenol as the feed phase and aqueous sodium hydroxide as the stripping phase. Several factors such as feed phase pH, feed phase flow rate and concentration of stripping phase were studied.  The results show that the best extraction performance can achieve 35% at pH 4 of feed phase, 150 ml/min feed flow rate and 1.0 M of stripping phase concentration. The result was used to determine the probability of using palm oil as a liquid membrane. In the determination of the potential of using palm oil as the membrane phase, the results show that an equal portion of palm oil and kerosene mixture performed the best extraction with 43% efficiency.

Removal and recovery of heavy metals from wastewaters by supported liquid membranes

2001 ◽  
Vol 43 (2) ◽  
pp. 341-348 ◽  
Author(s):  
X. J. Yang ◽  
A. G. Fane ◽  
S. MacNaughton
Keyword(s):  
Heavy Metals ◽  
Liquid Membrane ◽  
Chemical Precipitation ◽  
Precipitation Process ◽  
Liquid Membranes ◽  
Supported Liquid Membranes ◽  
In Series ◽  
Membrane Carriers ◽  
Very High ◽  
Removal And Recovery

The removal and recovery of Cu, Cr and Zn from plating rinse wastewater using supported liquid membranes (SLM) are investigated. SLMs with specific organic extractants as the liquid membrane carriers in series are able to remove and concentrate heavy metals with very high purity, which is very promising for recycling of heavy metals in the electroplating industry. A technical comparison between the membrane process and the conventional chemical precipitation process was made.

Electromembrane extraction of barbiturates using tributyl phosphate as an efficient supported liquid membrane

2020 ◽  
Vol 1129 ◽  
pp. 118-125
Author(s):  
Shifan Wu ◽  
Ruiqin Zhu ◽  
Ying Dong ◽  
Chuixiu Huang ◽  
Xiantao Shen
Keyword(s):  
Tributyl Phosphate ◽  
Liquid Membrane ◽  
Supported Liquid Membrane ◽  
Electromembrane Extraction
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