scholarly journals Pemisahan Logam Perak Dalam Limbah Cair Menggunakan Membran Cair Emulsi (ELM) Dengan Senyawa Pembawa Sinergi D2EHPA

2021 ◽  
Vol 1 (1) ◽  
pp. 25-30
Author(s):  
Muhammad Cholid Djunaidi ◽  
Danang Subarkah Hadikawuryan ◽  
Didik Setiyo Widodo ◽  
Nesti Dewi Maharani
Keyword(s):  
Liquid Membrane ◽  
Emulsion Liquid Membrane

Perak adalah logam yang digunakan secara luas dalam berbagai industri, meliputi fotografi (bahan dasar film dan kertas foto), elektronik, perhiasan, campuran logam (alloy) penghambat korosi, dan sebagainya sampai keskala laboratorium. Kandungan perak dalam limbah sebesar lebih dari 2000 mg/Lyang berpotensi menyebabkan toksisitas lingkungan dan kesehatan bagi makhluk hidup. Oleh karena itu, perlu dilakukan pemisahan logam perak dalam limbah dengan metode Emulsion Liquid Membrane (ELM) dengan campuran pembawa D2EHPA-TBP yang memiliki efektivitas dan selektivitas yang tinggi terhadap ion logam Ag. Produk perak yang didapatkan sebagai penyedia perak kedua. Hasil yang didapatkan dengan penggunaan pembawa D2EHPA-TBP lebih efektif untuk mengambil perak dari limbah daripada larutan Ag+. Pembawa D2EHPA-TBP menggunakan perak tiosulfat (sinergi) relatif selektif daripada Cu(II) dan Cr(VI) dengan persen pengambilan perak sebesar 94,93%.Kata Kunci: ELM; Logam Perak; selektif; D2EHPA

Recovery of Copper Ions from Wastewater by Hollow Fiber Supported Emulsion Liquid Membrane

2013 ◽  
Vol 21 (8) ◽  
pp. 827-834 ◽  
Author(s):  
Huidong ZHENG ◽  
Jingjing CHEN ◽  
Biyu WANG ◽  
Suying ZHAO
Keyword(s):  
Hollow Fiber ◽  
Liquid Membrane ◽  
Copper Ions ◽  
Emulsion Liquid Membrane

Extraction of Hexavalent Chromium from Aqueous Stream by Emulsion Liquid Membrane (ELM)

2010 ◽  
Vol 45 (2) ◽  
pp. 178-185 ◽  
Author(s):  
Arunava Choudhury ◽  
Siddhartha Sengupta ◽  
Chiranjib Bhattacharjee ◽  
Siddhartha Datta
Keyword(s):  
Hexavalent Chromium ◽  
Liquid Membrane ◽  
Emulsion Liquid Membrane

scholarly journals Recovery of Ni Metal from Spent Catalyst with Emulsion Liquid Membrane Using Cyanex 272 as Extractant

2018 ◽  
Vol 333 ◽  
pp. 012038
Author(s):  
Yuliusman ◽  
M Huda ◽  
I T Ramadhan ◽  
A R Farry ◽  
P T Wulandari ◽  
...  
Keyword(s):  
Liquid Membrane ◽  
Emulsion Liquid Membrane ◽  
Spent Catalyst ◽  
Cyanex 272

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. 

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