scholarly journals Efficient removal of Indigo dye from aqueous solution by an innovative method of emulsion liquid membrane

2019 ◽  
Vol 69 (06) ◽  
pp. 472-477
Author(s):  
QURESHI BRAJA FAHAD ◽  
QURESHI KHADIJA ◽  
KHATRI ZEESHAN ◽  
MALIK SAMANDER ALI ◽  
RAJPUT A. WAQAR ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Organic Phase ◽  
Liquid Membrane ◽  
Double Emulsion ◽  
Volume Ratio ◽  
Optimum Conditions ◽  
Emulsion Liquid Membrane ◽  
Effective Technique ◽  
Indigo Dye ◽  
Two Phases

Extraction of Indigo dye from aqueous solution is studied in this research using Emulsion Liquid Membrane (ELM). Water/Oil (W/O) emulsion was prepared by mixing aqueous phase with organic phase at an elevated homogenizing speed. H2SO4 and Hexane were used as internal stripping agent and organic diluent respectively. Monooleate Sorbitan commonly known as Span-80 was used as surfactant in organic phase. This W/O emulsion was later mixed with external feed phase containing Indigo dye to make W/O/W double emulsion. Stability of the membrane was optimized by experimenting different operating parameters. The ELM prepared under the optimum conditions was finally used to remove Indigo dye from aqueous solution. The parametric study of the process parameters affecting the extraction efficiency was also performed. Under optimum conditions of parameters like volume ratio of emulsion/feed, dye concentration in feed, stirring speed and contact time of two phases, the extraction of Indigo dye was found to be 99%. Therefore, ELM was found to be an attractive and effective technique for the removal of dyes.

Removal of Phenol by a New Emulsion Liquid Membrane System and its Heat-Induced Demulsification

2011 ◽  
Vol 356-360 ◽  
pp. 1675-1678 ◽  
Author(s):  
Wei Peng ◽  
Chun Jian Xu
Keyword(s):  
Aqueous Solution ◽  
Liquid Membrane ◽  
Ph Value ◽  
Volume Ratio ◽  
Membrane System ◽  
Membrane Phase ◽  
Emulsion Liquid Membrane ◽  
Internal Phase ◽  
External Phase ◽  
Demulsification Efficiency

Removal of phenol from aqueous solution by a new emulsion liquid membrane (ELM) system and its heat-induced demulsification have been investigated. The ELM consists of commercial kerosene as organic solvent, OP-4 as surfactant agent, hydrochloric acid as the stripping phase. Effect of different operating parameters such as internal phase concentration, surfactant concentration, stirring speed, PH value in external phase, volume ratio of membrane phase to internal phase and volume ratio of membrane phase to external phase were investigated for the removal of phenol from aqueous solution. At the optimum condition about 95.7% phenol is removed in less than 20min of contact time. The demulsification efficiency was investigated under different temperature and time and proved to be high at 80°C.

ENHANCING TEXTILE DYE REMOVAL IN EMULSION LIQUID MEMBRANE SYSTEM USING TAYLOR COUETTE COLUMN

2018 ◽  
Vol 80 (3) ◽  
Author(s):  
Adhi Kusumastuti ◽  
A. L. Ahmad ◽  
Rodia Syamwil ◽  
Samsudin Anis
Keyword(s):  
Methylene Blue ◽  
Liquid Membrane ◽  
Volume Ratio ◽  
Interfacial Area ◽  
Membrane System ◽  
Textile Dye ◽  
Feed Concentration ◽  
Emulsion Liquid Membrane ◽  
Low Concentration ◽  
Taylor Couette

Although textile dyes is basically available in very low concentration (10-200 ppm); it should be removed due to the toxicity to human body and environment. Among the existing methods, emulsion liquid membrane (ELM) is a promising method by providing high interfacial area and the ability to remove a very low concentration of the solute. The optimal emulsions were produced using commercially supplied homogeniser. Initially, methylene blue in simulated wastewater was extracted using a Taylor-Couette column. Methylene blue concentration was determined using spectrophotometer. Complete extraction was performed in the designed column. The research obtained optimal extraction efficiency of about 99% at external phase pH of 10, carrier concentration of 9 wt. %, HCl concentration of 0.5 M, initial feed concentration of 20 ppm, volume ratio of emulsion to feed phase of 1:5, extraction time of 5 min, and extraction speed of 600 rpm. 

CADMIUM REMOVAL USING VEGETABLE OIL BASED EMULSION LIQUID MEMBRANE (ELM): MEMBRANE BREAKAGE INVESTIGATION

2015 ◽  
Vol 75 (1) ◽  
Author(s):  
A. L. Ahmad ◽  
M. M. H. Shah Buddin ◽  
B. S. Ooi ◽  
Adhi Kusumastuti
Keyword(s):  
Vegetable Oil ◽  
Liquid Membrane ◽  
Corn Oil ◽  
Volume Ratio ◽  
Aliquat 336 ◽  
Emulsion Liquid Membrane ◽  
Cadmium Removal ◽  
Internal Phase ◽  
External Phase ◽  
Span 80

The aim of this research is to quantify the occurrence of membrane breakage in vegetable oil based Emulsion Liquid Membrane (ELM). Basically, ELM consists of three main phases; internal, external and membrane. In this work, the membrane phase was prepared by dissolving Span 80 as surfactant and Aliquat 336 as carrier in commercial grade corn oil. As a way to promote sustainable development, vegetable oil which is environmentally benign diluent was incorporated in the formulation of ELM. The influence of several important parameters towards membrane breakage were studied. They are carrier and surfactant concentration, W/O volume ratio, emulsification time, internal phase concentration as well as stirring speed. Based on the data obtained, emulsion prepared using 4 wt% Aliquat 336 and 3 wt% Span 80 resulted in the most stable emulsion with only 0.05% membrane breakage. The emulsion was produced using W/O volume ratio of 1/3 and it was homogenized with the assistance of ultrasound for 15 min. Moreover, emulsion produced able to provide a fair balance between emulsion stability and Cd(II) permeability as it able to remove 98.20% Cd(II) ions from the external phase. 

Cobalt Ion Extraction from Wastewater by P204 Microemulsion Saponified

2012 ◽  
Vol 496 ◽  
pp. 407-410
Author(s):  
Du Shu Huang ◽  
Jin Gang Yu ◽  
Rui Min Xiao ◽  
Zi Jing Li ◽  
Li Da Sun
Keyword(s):  
Organic Phase ◽  
Volume Ratio ◽  
Extraction Process ◽  
Microemulsion System ◽  
Optimum Conditions ◽  
Extraction Coefficient ◽  
Initial Concentration ◽  
Ion Extraction ◽  
Initial Ph ◽  
Cobalt And Nickel

The extraction process of cobalt using microemulsion system saponified with P204 as extracting agent was studied. The influence of initial concentration, the concentration of P204, initial pH, the extracting time and the concentration of cobalt and nickel on extraction coefficient were also studied. Experimental results show that the saponification microemulsion system using P204 as extractant is thermodynamic stable, and it can separate cobalt better. The optimum conditions were achieved as: the initial concentration is 0.05 mol/L, pH is 2; The concentration of P204 is 10%, extraction time is 10 min; The volume ratio of organic phase to water phase is 2:1.

Design of Intelligent Network to Predicate Phenol Removal from Waste Water by Emulsion Liquid Membrane

2021 ◽  
Vol 1021 ◽  
pp. 115-128
Author(s):  
Suheila Abd Alreda Akkar ◽  
Sawsan Abd Muslim Mohammed
Keyword(s):  
Neural Network ◽  
Liquid Membrane ◽  
Mean Squared Error ◽  
Back Propagation ◽  
Volume Ratio ◽  
Phenol Removal ◽  
Acid Extraction ◽  
Training Algorithms ◽  
Membrane Phase ◽  
Emulsion Liquid Membrane

This research introduced Intelligent Network's proposed design for predicting efficiency in the removal of phenol from wastewater by liquid membrane emulsion. In the inner phase of W / O emulsions, phenol extraction from an aqueous solution was investigated using emulsion liquid membrane prepared with kerosene as a membrane phase, Span 80 as a surfactant, and NaOH as a stripping agent. Experiments were conducted to investigate the effect of three emulsion composition variables, namely: surfactant concentration, membrane phase to-internal (VM / VI) volume ratio, and removal phase concentration in the internal phase, and two process parameters, feed phase agitation speed at organic acid extraction rates, and emulsion-to-feed volume ratio (VE / VF). More than 98% of phenol can be extracted in less than 5 minutes. This article describes compares the performance of different learning algorithms such as GD, RB, GDM, GDX, CG, and LM to predict the efficiency of phenol removal from wastewater through the liquid emulsion membrane. The proposed neural network consisted of (7, 11, 1) neurons in the input , hidden and output layers respectively feed forward ANN with various types of back propagation training algorithms were developed to model the emulsion liquid membrane removal of phenols. The values predicted for the neural network model are found in close agreement with the results of the batch experiment using MATLAB program with a correlation coefficient ( R2) of 0.999 and Mean Squared Error (MSE) of 0.004.

A two-step approach for copper and nickel extracting and recovering by emulsion liquid membrane

2016 ◽  
Vol 74 (10) ◽  
pp. 2454-2461
Author(s):  
Qiang Bi ◽  
Juanqin Xue ◽  
Yingjuan Guo ◽  
Guoping Li ◽  
Haibin Cui
Keyword(s):  
Liquid Membrane ◽  
Volume Fraction ◽  
Process Variable ◽  
Phase Volume ◽  
Optimum Conditions ◽  
Application Technology ◽  
Emulsion Liquid Membrane ◽  
Phase Volume Fraction ◽  
Internal Phase ◽  
Valuable Metals

The recycling of copper and nickel from metallurgical wastewater using emulsion liquid membrane (ELM) was studied. P507 (2-ethylhexyl phosphonic acid-2-ethylhexyl ester) and TBP (tributyl phosphate) were used as carriers for the extraction of copper and nickel by ELMs, respectively. The influence of four emulsion composition variables, namely, the internal phase volume fraction (ϕ), surfactant concentration (Wsurf), internal phase stripping acid concentration (Cio) and the carrier concentration (Cc), and the process variable treat ratio on the extraction efficiencies of copper or nickel were studied. Under the optimum conditions, 98% copper and nickel were recycled by using ELM. The results indicated that ELM extraction is a promising industrial application technology to retrieve valuable metals in low concentration metallurgical wastewater.

Separation of Cobalt and Nickel from Wastewater by P204 Microemulsion Saponified

2012 ◽  
Vol 496 ◽  
pp. 415-418 ◽  
Author(s):  
Du Shu Huang ◽  
Jin Gang Yu ◽  
Zhong Zhou Yi ◽  
Yan Jiang ◽  
Ya Shun Chen
Keyword(s):  
Organic Phase ◽  
Volume Ratio ◽  
Separation Process ◽  
Experimental Results ◽  
Separation Coefficient ◽  
Microemulsion System ◽  
Optimum Conditions ◽  
Initial Concentration ◽  
Initial Ph ◽  
Cobalt And Nickel

The separation process of cobalt and nickel using microemulsion system saponified with P204 as extracting agent was studied. The influence of initial concentration, the concentration of P204, initial pH, the extracting time and the concentration of cobalt and nickel on separation coefficient were also studied. Experimental results show that the saponification microemulsion system using P204 as extractant is thermodynamic stable, and it can separate cobalt and nickel better. The optimum conditions were achieved as: the initial concentration is 0.05 mol/L, pH is 2, the concentration of P204 is 8%, extraction time is 10 minutes, the volume ratio of organic phase to water phase is 2:1.

Extraction of Co(II) from aqueous solution using emulsion liquid membrane

2008 ◽  
Vol 151 (2-3) ◽  
pp. 610-615 ◽  
Author(s):  
M.S. Gasser ◽  
N.E. El-Hefny ◽  
J.A. Daoud
Keyword(s):  
Aqueous Solution ◽  
Liquid Membrane ◽  
Emulsion Liquid Membrane

scholarly journals Optimization of Emulsion Liquid Membrane for Lead Separation from Aqueous Solutions

2017 ◽  
Vol 7 (5) ◽  
pp. 2068-2072 ◽  
Author(s):  
E. Fouad ◽  
F. Ahmad ◽  
K. Abdelrahman
Keyword(s):  
Liquid Membrane ◽  
Volume Ratio ◽  
Lead Extraction ◽  
Emulsion Liquid Membrane ◽  
Pareto Chart ◽  
Optimum Parameters ◽  
Phase Concentration ◽  
Internal Phase ◽  
Optimal Values ◽  
Agitation Time

This study focuses on evaluating the process parameters and their effects on extraction of lead as well as emulsion breaking. The Signal / Noise ratios have been used to study the performance characteristics. Six parameters affecting extraction by emulsion liquid membrane, namely, TOPO, Span80, and internal phase concentration, feed/emulsion ratio, agitation time and feed pH have been optimized with considerations to lead extraction and emulsion breaking. The standardized effects of the independent variables and their interactions were tested by the analysis of variance (ANOVA) with 95% confidence limits (α= 0.05) and Pareto chart. The use of the optimal values of these parameters has been proved useful in maximizing the extraction efficiency and minimizing the emulsion breakage. TOPO concentration of 0.1498 M, Span 80 concentration of 3.007 v%, Internal phase concentration of 0.183 M, Feed/emulsion volume ratio of 1.407, agitation time of 30 minutes, and feed pH of 5 are determined as the optimum parameters.

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