scholarly journals Application of Emulsion Liquid Membrane Using Green Surfactant for Removing Phenol from Aqueous Solution: Extraction, Stability and Breakage Studies

2022 ◽  
Vol 23 (1) ◽  
pp. 305-314
Author(s):  
Ahmed Mohammed ◽  
Rasha Al-Khateeb
2008 ◽  
Vol 151 (2-3) ◽  
pp. 610-615 ◽  
Author(s):  
M.S. Gasser ◽  
N.E. El-Hefny ◽  
J.A. Daoud

2019 ◽  
Vol 69 (06) ◽  
pp. 472-477
Author(s):  
QURESHI BRAJA FAHAD ◽  
QURESHI KHADIJA ◽  
KHATRI ZEESHAN ◽  
MALIK SAMANDER ALI ◽  
RAJPUT A. WAQAR ◽  
...  

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.


2015 ◽  
Vol 75 (6) ◽  
Author(s):  
S. N. Suahadah ◽  
K. S. N. Kamarudin ◽  
S. B. M. Najib ◽  
N. Dolmat

Absorption using aqueous alkanolamine is commonly used in industry to remove the carbon dioxide. However it has several weaknesses such as corrosion problem and low absorption rate. Emulsion liquid membrane is introduced as an alternatives method for CO2 absorption because it can reduce the corrosion problem and the formation water droplets creates large interfacial area for absorption to occur. 2-amino-2-methyl-1-propanol (AMP) and monoethanolamine (MEA) present in the aqueous phase in the form of aqueous droplets, surrounded by the organic solution to form water in oil (w/o) emulsion. In this study, effects of amines ratios and amine quantities, and emulsification time and speed on the ELM stability and CO2 absorption were investigated. The ELM was prepared by homogenizing the aqueous and the organic phases. AMP and MEA were added into sodium hydroxide (NaOH) solution to form aqueous solution, and kerosene and Span-80 were mixed to form the organic solution. The absorption study was carried out in rotating disc contactor (RDC) column. A mixture of 12 v% MEA, 4 v% AMP in 100 ml aqueous solution and 8 v% Span-80 in 100 ml organic phase has high stability and can remove 60% of CO2. The stability of the emulsion remained high even after the absorption. This study proved that ELM has the potential to remove CO2 by using only small amount of amines.


2017 ◽  
Vol 16 ◽  
pp. 64-68 ◽  
Author(s):  
Ankit Srivastava ◽  
Ankush Bhagat ◽  
Utkarsh Sharma ◽  
Rajeev Kumar Dohare ◽  
Kailash Singh ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (102) ◽  
pp. 84195-84206 ◽  
Author(s):  
Saeed Laki ◽  
Ahmad Arabi Shamsabadi ◽  
Sayed Siavash Madaeni ◽  
Mohammad Niroomanesh

The present study deals with the carrier-facilitated transport of manganese from an acidic leach solution in an emulsion liquid membrane system.


2020 ◽  
Vol 13 (3) ◽  
pp. 183-188
Author(s):  
Hassan A. Shamkhia ◽  
Amer D. Z. Albdiria

A simultaneous extraction study of lead, copper, and cadmium from diluted aqueous solution through Emulsion Liquid Membrane (ELM) technique was conducted and extensive investigations of the impact    of the pH of the feed phase, homogenizer speed, surfactant (Span 80) and carrier (D2EHPA)           concentrations, and ratio of external to membrane phase on the system stability (breakage) and removal efficiencies of Pb2+, Cu2+,Cd2+ ions were experimentally carried out. Kerosene was used as the membrane and stabilized by Sorbitan monooleate (Span 80) as the emulsifier. Bis-2-Ethylhexyl phosphoric acid (D2EHPA) as an extractant and H2SO4 as a reagent (internal phase) were utilized. Lead, Copper, and Cadmium extraction efficiencies of 100%, 100%, and 98% were obtained respectively under specific operating conditions. The emulsion stability of the system was studied, and breakage of 1.8% under the best operating condition was obtained. High reagent (H2SO4) concentration (0.5 M) maintained the simultaneous extraction of the three heavy metals (lead, copper, and cadmium) and minimizes the probable interaction and competing mechanism between them in the extraction stage.


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