Original Research Paper
Synthesis of Highly Effective Novel Graphene Oxide-Polyethylene Glycol-Polyvinyl Alcohol Nanocomposite Hydrogel For Copper Removal

Eman Serag; Ahmed El Nemr; Azza El-Maghraby

Volume 2, Issue 4 , October 2017, Pages 223-234


  A novel Graphene oxide-polyethylene glycol and polyvinyl alcohol (GO-PEG-PVA) triple network hydrogel were prepared to remove Copper(II) ion from its aqueous solution. The structures, morphologies, and properties of graphene oxide (GO), the composite GO-PEG-PVA and PEG-PVA were characterized using FTIR, ...  Read More

Original Research Paper
Investigation of Dip-Coating Parameters Effect on The Performance of Alumina-Polydimethylsiloxane Nanofiltration Membranes for Desalination

Mohammad Hadi Yousefi; Mohamad Mehdi Zerafat; Majid Shokri Doodeji; Samad Sabbaghi

Volume 2, Issue 4 , October 2017, Pages 235-242


  The objective of this work is to investigate the effect of dip-coating parameters on the performance of Alumina-PDMS hybrid nanofiltration membranes for water desalination. Ceramic supports used in this work were prepared with a 340 nm average pore size and 34% total porosity. The aim is to determine ...  Read More

Review Paper
A Comprehensive Study on the Application of Reverse Osmosis (RO) Technology for the Petroleum Industry Wastewater Treatment

Shahryar Jafarinejad

Volume 2, Issue 4 , October 2017, Pages 243-264


  Large quantities of oily wastewaters can be generated from the activities and processes in the petroleum industry which draining of these effluents not only pollutes the environment but also reduces the yield of oil and water. Therefore, development of treatment processes for petroleum industry wastewaters ...  Read More

Original Research Paper
Kinetic and Isotherm Studies of Cadmium Adsorption on Polypyrrole/Titanium dioxide Nanocomposite

Marjan Tanzifi; Marzieh Kolbadi nezhad; Kianoush Karimipour

Volume 2, Issue 4 , October 2017, Pages 265-277


  The present work seeks to investigate the ability of polypyrrole/titanium dioxide nanocomposite to adsorb cadmium ions from aqueous solution. The impact of various experimental conditions, including solution pH, adsorbent dosage, adsorption time and initial concentration on the uptake of cadmium were ...  Read More

Original Research Paper
Synthesis of Bare and Four Different Polymer- Stabilized Zero-Valent Iron Nanoparticles and Their Efficiency on Hexavalent Chromium Removal from Aqueous Solutions

Mohammad Taghi Kouhiyan Afzal; Ahmad Farrokhian Firouzi; Mehdi Taghavi

Volume 2, Issue 4 , October 2017, Pages 278-289


  Zero-valent iron particles at the nanoscale are proposed to be one of the important reductants of Cr(VI), transforming the same into nontoxic Cr(III). In this study zero valent iron nanoparticles(ZVINs) were synthesized and characterized for hexavalent chromium removal from aqueous solutions. Five different ...  Read More

Original Research Paper
Photocatalytic Treatment of Synthetic Wastewater Containing 2,4 dichlorophenol by Ternary MWCNTs /Co-TiO2 Nanocomposite Under Visible Light

Shahryar Nazarpour Laghani; Azadeh Ebrahimian Pirbazari

Volume 2, Issue 4 , October 2017, Pages 290-301


  In this work, multi-walled carbon nanotubes (MWCNTs)/Co-TiO2 nanocomposites were synthesized and investigated for photocatalytic degradation of 2,4-dichlorophenol (2,4-DCP) under visible light. Characterization of photocatalysts was done by means of XRD, FT-IR and SEM/EDX techniques. Obtained results ...  Read More

Original Research Paper
Graphene Quantum Dots/Eggshell Membrane Composite as a Nano-sorbent for Preconcentration and Determination of Organophosphorus Pesticides by High-Performance Liquid Chromatography

Vahideh Abdollahi; Habib Razmi

Volume 2, Issue 4 , October 2017, Pages 302-310


  In this study graphene quantum dots/eggshell membrane nanocomposite (GQDS/ESM) is prepared and used as an efficient solid-phase extraction (SPE) sorbent for preconcentration of organophosphorus pesticides (OPPs) from aqueous solutions. The retained analytes on the sorbent are stripped by acetonitrile ...  Read More

Original Research Paper
Application of Combined Cake Filtration-Complete Blocking Model to Ultrafiltration of Skim Milk

Mansoor Kazemimoghadam; Zahra Amiri-Rigi

Volume 2, Issue 4 , October 2017, Pages 311-324


  Membrane ultrafiltration (UF) is widely used in dairy industries like milk concentration and dehydration processes. The limiting factor of UF systems is fouling which is defined as the precipitation of solutes in the form of a cake layer on the surface of the membrane. In this study, the combined cake ...  Read More