scholarly journals Electrospun Bi-layered Composite Membrane for the Removal of Metallic Contaminants in Drinking Water

2019 ◽  
Vol 23 (3) ◽  
Author(s):  
Naznin Sultana ◽  
D. E. Daniels
Keyword(s):  
Drinking Water ◽  
Composite Membrane ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Composite Membranes ◽  
Layered Composite ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Metallic Contaminants ◽  
Plasma Optical Emission Spectrometry

Using biodegradable polymer polycaprolactone (PCL) and zeolite, the present experiment was conducted with the aim of using biodegradable PCL and zeolite based composite membrane to remove silver in drinking water. After optimizing the electrospinning parameters, a double-layered PCL and PCL/zeolite electrospun composite membranes were manufactured. The membranes were then characterized using a scanning electron microscope (SEM) and an energy dispersive X-ray (EDX) and the filtration phenomenon was conducted by dispersing silver nanoparticles in water. After comparing the filtration results using an inductively coupled plasma optical emission spectrometry (ICP-OES), it was observed that the bi-layered membrane filtered 90% of silver present in the water. The present work shows that the new PCL/zeolite based double-layered membrane can be promising to remove contaminants in drinking water.

scholarly journals Removal of Silica in Wastes With Methyl Cellulose Composite Membranes

2021 ◽  
Author(s):  
Demet Dağıdır ◽  
Nil Acaralı
Keyword(s):  
Composite Membrane ◽  
Inductively Coupled Plasma ◽  
Methyl Cellulose ◽  
Optical Emission ◽  
Composite Membranes ◽  
Optimization Method ◽  
Synthesis Temperature ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Stirring Time

Abstract In this study, experiments were carried out for composite membrane synthesis with m-phenylenediamine (MPD), hydroxyethyl methacrylate (HEMA) and methyl cellulose (MS) by changing process parameters (methyl cellulose ratio, synthesis temperature, stirring time, oven temperature). Taguchi Method, an optimization method for production, was applied to 4 levels 4 parameters. The silica solution was passed through the produced composite membrane, and the filtering property of the membrane for different periods was examined. Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD) were used for characterization of composite membranes. Shore A test was performed to determine the mechanical strength of composite membranes. The amount of silica in membranes obtained because of the silica treatment was determined by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) analysis. As a result, it was seen that the composite membranes produced could be evaluated in the treatment of wastewater containing silica.

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