Effect of Recycling of Feed Solution on the Efficiency of Supported Liquid Membrane Module

1994 ◽  
Vol 29 (13) ◽  
pp. 1749-1755 ◽  
Author(s):  
Masaaki Teramoto ◽  
Noriaki Ohnishi ◽  
Hideto Matsuyama
Keyword(s):  
Liquid Membrane ◽  
Feed Solution ◽  
Membrane Module ◽  
Supported Liquid Membrane

scholarly journals SUPPORTED LIQUID MEMBRANE WITH STRIP DISPERSION FOR RECOVERING INDIUM FROM ETCHING SOLUTION OF LCD INDUSTRY: INFLUENCE OF FACTORS ON PERFORMANCE

2021 ◽  
Vol 59 (1) ◽  
pp. 90
Author(s):  
Ngan Thi Tuyet Dang ◽  
Kien Trung Tran ◽  
Da-Ming Wang
Keyword(s):  
Oxalic Acid ◽  
Phosphoric Acid ◽  
Driving Force ◽  
Liquid Membrane ◽  
Feed Solution ◽  
Single Step ◽  
Supported Liquid Membrane ◽  
High Concentration ◽  
Waste Streams ◽  
Etching Solution

Supported liquid membrane with strip dispersion (SLMSD) is a promising process for metal recovery from e-waste or waste streams because of many advantages such as the ability to combine extraction and stripping into one single step and thus have non-equilibrium mass transfer characteristics and maximum driving force. This paper investigated the effect of important factors on SLMSD performance to recover indium from etching solution such as: pH of feed solution, extractant (Di-(2-ethylhexyl) phosphoric acid (D2EHPA)) concentration, oxalic acid concentration. It was found that 99.5 % In3+ was removed from feed solution in about 20 minutes with high concentration factor (4.5) under suitable conditions (pH 1; 0.6M Di-(2-ethylhexyl) phosphoric acid (D2EHPA), 2 wt% oxalic acid).

scholarly journals Mass Transfer and Extraction of Zinc from Rinse Water of Zinc Phosphate Coating via A Hollow Fiber Supported Liquid Membrane

2017 ◽  
Vol 16 (1) ◽  
Author(s):  
Krittiya Wisutthisaen ◽  
Pharannalak Wannachod ◽  
Ura Pancharoen
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Hollow Fiber ◽  
Liquid Membrane ◽  
Feed Solution ◽  
Supported Liquid Membrane ◽  
Extraction Equilibrium ◽  
Automotive Assembly ◽  
Mass Transfer Modeling

The extraction of Zn(II) ions from phosphating rinsing waters in automotive assembly process was investigated though a hollow fiber supported liquid membrane (HFSLM) by using di(2-ethyhylhexyl) phosphoric acid (D2EHPA)as a highly selective carrier for the transfer of zinc ions which diluted in kerosene and sulfuric acid solution have been used as the stripping solution. The various chemical parameters, such as the pH of the initial feed solution, the concentration of carrier, the concentration of stripping solution, the flow rate of feed and stripping solution were investigated. The optimum condition have been determined. The extraction of Zn(II) from feed phase was achieved at 91% by 8%(v/v) or 0.25 molar of D2EHPA. Mass transfer modeling in the systemwas developed to predict the extent of Zn(II) extraction at different time. Extraction equilibrium constant (Kex), distribution ratio (D), permeability (P) and mass transfer were determined. The aqueous-phase mass-transfer coefficient (Ki) and organic-phase mass-transfer coefficient (Km) were calculated.

Pertraction of cadmium and zinc ions using a supported liquid membrane impregnated with different carriers

2013 ◽  
Vol 67 (4) ◽  
Author(s):  
Mohammad Peydayesh ◽  
Gholam Esfandyari ◽  
Toraj Mohammadi ◽  
Eskandar Alamdari
Keyword(s):  
Phosphoric Acid ◽  
Carrier Concentration ◽  
Metal Ion ◽  
Liquid Membrane ◽  
Feed Solution ◽  
Supported Liquid Membrane ◽  
Optimum Conditions ◽  
Feed Concentration ◽  
Experimental Conditions ◽  
Cyanex 302

AbstractAn experimental study on the removal of Cd2+ and Zn2+ through a supported liquid membrane using a mixture of mono-(2-etylhexyl) ester of phosphoric acid (M2EHPA) and bis-(2-etylhexyl) ester of phosphoric acid (D2EHPA) as carriers is presented. Parameters affecting the Cd2+ and Zn2+ pertraction such as feed concentration, carrier concentration, pH of the stripping phase, and TBP (tributyl phosphate) concentration were analyzed using the Taguchi method. Optimal experimental conditions for Cd2+ and Zn2+ pertraction were obtained using the analysis of variance (ANOVA) after a 6 h separation with the initial feed concentration of 8.9 × 10−4 mol L−1, carrier concentration of 20 vol. %, TBP concentration of 4 vol. %, and pH of 0.5. Then, under optimum conditions, a comparison of M2EHPA, D2EHPA, and bis-(2,4,4-trimethylpentyl)monothiophosphinic acid (Cyanex 302) was performed. Effective pertraction of Cd2+ and Zn2+ using these carriers was observed in the following order: mixture of M2EHPA and D2EHPA, D2EHPA, Cyanex 302. It was also found that the presence of one metal ion in the feed solution reduces the pertraction rate of the other one.

The Elimination of Trace Arsenic Via Hollow Fiber Supported Liquid Membrane: Experiment and Mathematical Model

2021 ◽  
Author(s):  
Sira Suren ◽  
Watcharapong Ampronpong ◽  
Ura Pancharoen ◽  
Kreangkrai Maneeintr
Keyword(s):  
Mathematical Model ◽  
Hollow Fiber ◽  
Liquid Membrane ◽  
Produced Water ◽  
Feed Solution ◽  
Single Step ◽  
Supported Liquid Membrane ◽  
Synthetic Wastewater ◽  
Aliquat 336 ◽  
Flow Rates

Abstract This work presents the elimination of arsenic ions from synthetic produced water via hollow fiber supported liquid membrane (HFSLM). The effects of extractants, pH of feed solution, strippant solutions, and flow rates of feed and strippant solutions are duly investigated. Results demonstrate that arsenic ions in synthetic wastewater could be treated to comply with the standard of wastewater discharged (< 0.25 mg/L) via HFSLM. Percentages of extraction and stripping proved to be 100% and 98%, respectively. Thus, in a single-step operation, arsenic ions are extracted and stripped, using 0.5 M Aliquat 336 as the extractant, at pH of feed solution of 12, with a mixture of thiourea and hydrochloric acid (0.5 M each) as the synergistic strippant solution, and flow rates of both feed and strippant solutions of 100 mL/min. A mathematical model has also been developed to predict the final concentration of arsenic ions in feed and strippant solutions. The results predicted by the mathematical model fit in well with the experimental results.

Selective recovery of uranium from THOREX feed by hollow fibre supported liquid membrane technique containing di(2-ethylhexyl) isobutyramide (D2EHIBA) as the carrier

2010 ◽  
Vol 98 (5) ◽  
Author(s):  
P. N. Pathak ◽  
S. A. Ansari ◽  
D. R. Prabhu ◽  
A. S. Kanekar ◽  
P. K. Mohapatra ◽  
...  
Keyword(s):  
Liquid Membrane ◽  
Feed Solution ◽  
Hollow Fibre ◽  
Supported Liquid Membrane ◽  
Selective Recovery ◽  
Membrane Technique

AbstractHollow fibre supported liquid membrane (HFSLM) studies were carried out for the selective recovery of uranium from THOREX feed solution (0.2 g/L U+200 g/L Th+0.03 M HF+0.1 M Al(NO

scholarly journals Utilization of Supported Liquid Membrane (SLM) in Separation of Pb(II) by Varying Concentration of Carrier and Feed Solution

2017 ◽  
Vol 18 (2) ◽  
pp. 139
Author(s):  
Dwi Indarti ◽  
Novitasari Novitasari ◽  
Yudi Aris Sulistyo
Keyword(s):  
Liquid Membrane ◽  
Feed Solution ◽  
Solution Concentration ◽  
Supported Liquid Membrane ◽  
Transport Activity ◽  
Poly Ethylene Glycol ◽  
Polyethylene Glycol 400 ◽  
Peg 400 ◽  
Main Effect ◽  
Poly Ethylene

Supported liquid membrane (SLM) was prepared by reacting host material with carrier compounds. Carrier compound was Polyethylene Glycol-400 (PEG-400) that have been used with the variation of concentration 0, 2, 4, and 6%. The effect of its variations in SLM was characterized by FTIR and the performance was examined by transporting feed solution Pb(NO3)2 with variation 1, 5, 10, 15, and 25 ppm for 3 hours in pH 3. FTIR spectra depicted that the increasing concentration of PEG would arise the intensity of typical PEG’s functional groups such as -OH, C-O-C, and CH2-CH2 sp3. The optimum transport Pb(II) was achieved by SLM with 6% PEG. Variation of feed solution concentration showed the main effect in SLM activity. The higher of feed solution concentration would decrease of transport activity. The % extract and % recovery 1 ppm was higher than 25 ppm with 72,5% and 70,27% than 6,1% and 3,59%, respectively. Keywords: supported liquid membrane, Pb(II), poly ethylene glycol, extraction and recovery, carrier compound

Recovery of acetaminophen from aqueous solutions using a supported liquid membrane based on a quaternary ammonium salt as ionophore

2014 ◽  
Vol 68 (4) ◽  
Author(s):  
Noura Kouki ◽  
Rafik Tayeb ◽  
Mahmoud Dhahbi
Keyword(s):  
Aqueous Solutions ◽  
Liquid Membrane ◽  
Pharmaceutical Preparations ◽  
Feed Solution ◽  
Supported Liquid Membrane ◽  
Aliquat 336 ◽  
Ultrapure Water ◽  
Polymeric Support ◽  
Transport Efficiency ◽  
Frequent Use

AbstractA flat sheet-supported liquid membrane (FSSLM) system, consisting of an ionic liquid, tricapryl-methylammonium chloride (Aliquat 336®) in octan-2-ol, is proposed as a means of recovering acetaminophen (Ac) from aqueous solutions; Ac is an active ingredient widely used in many pharmaceutical preparations. Several parameters which could affect the transport efficiency were examined, i.e., the strippant nature and concentration in the receiving solution, the diluent nature, carrier concentration, initial acetaminophen concentration in the feed solution, and the polymeric support type. A facilitated transport was obtained by impregnating the polymeric support with 10 vol. % of Aliquat 336® in octan-2-ol, 1 M NaOH as a receiving solution, and a feed solution of Ac dissolved in ultrapure water. The study was completed by using the FSSLM thus developed for extracting Ac from some drugs in frequent use in Tunisia (Analgan®, Doliprane®, and Fervex®).

scholarly journals Transport of As (III) from Acidic Feed Solution through Supported Liquid Membrane Impregnated with Tri-n-dodecylamine and Recovery as As (V)

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Najeeb Ullah ◽  
Gul Akhthar
Keyword(s):  
Metal Ion ◽  
Liquid Membrane ◽  
Transport Model ◽  
Feed Solution ◽  
Ion Concentration ◽  
Supported Liquid Membrane ◽  
Basic Medium ◽  
Membrane Interface ◽  
Factors Affecting ◽  
Strongly Agree

The transport of As (III) via supported liquid membrane containing tri-n-dodecylamine (TDDA) as carrier in acidic medium has been studied. Various factors affecting the transport of As (III) were evaluated. The effects of acid concentration (HCl), metal ion concentration, carrier, and strippant (NaOH) concentration on transport of As (III) were thoroughly examined. Mathematical transport model was presented considering the formation of complex between TDDA, acid, and As (III) at feed membrane interface, then the diffusion of this complex through membrane, and finally dissociation of the complex in basic medium at strip membrane interface. The predicted results of this model strongly agree with experimental ones. The stoichiometry of complex was determined on the basis of slope analysis of plots. The mechanism of transport was determined by coupled co-ion transport mechanism, with H+ and Cl− coupled ions. The optimized SLM was efficiently used for transport of As (III) from acidic feed solution into basic strippant NaOH and oxidized to less toxic form As (V) by adding H2O2.

Research on Cu(II) Transfer Using Supported Liquid Membrane

2013 ◽  
Vol 790 ◽  
pp. 41-44
Author(s):  
Xiao Jiao Yu ◽  
Fan Zhang ◽  
Lin Zhu Huang ◽  
Jie Zhao ◽  
Jian Zhang
Keyword(s):  
Carrier Concentration ◽  
Migration Rate ◽  
Polyvinylidene Fluoride ◽  
Liquid Membrane ◽  
Feed Solution ◽  
Migration Time ◽  
Supported Liquid Membrane ◽  
Solution Ph ◽  
Experimental Conditions

Supported liquid membrane is established by using 2-Ethylhexylphosphoric acid mono-2-ethylhexyl ester as carrier, kerosene as membrane solvent and Polyvinylidene fluoride membrane as matrix. This article analyzes the effects of Cu (II) concentration, migration time, carrier concentration and feed solution pH for the rate of migration by means of monofactor experiments to obtain the optimum experimental conditions. The results indicate that the migration rate of Cu (II) with the optimical conditions as following: Cu (II) concentration at 4×10-4mol/L, migration time at 120min, carrier concentration at 7% and feed solution pH at 5.0, attains to 83.5%, which is the optimum value of Cu (II) migration.

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