Petroleum Research Petroleum Research 2019 (June-July), Vol. 29, No. 105, 20-24 DOI: 10.22078/pr.2018.3350.2536 Fabrication of Mixed Matrix ion Exchange Membrane by Using Activated Carbon Nanoparticles Modifed by Chitosan: Investigation of Electrolyte Concentration and pH Effects on Transfer Properties Sayed Mohsen Hosseini 1 *, Mohammad Ebrahimi 1 , Alireza Khodabakhshi 2 , Mahsa Nemati 1 and Mahdi Askari 1 1. Department of Chemical Engineering, Faculty of Engineering, Arak University, Iran 2. Department of Chemistry, Faculty of Sciences, Arak University, Iran S-Hosseini@Araku.ac.ir DOI: 10.22078/pr.2018.3350.2536 Received: June/05/2018 Accepted: November/14/2018 INTRODUCTION Nowadays, ion exchange membranes (IEMs) are widely studied and utlized as actve separators in various electrically driven processes. In this kind of membrane charged groups atached to polymer backbone are freely permeable to opposite sign ions under the infuence of electrical feld [1]. Moreover, the ion exchange membranes are efcient tools in desaltng brackish waters, reconcentratng brine from seawater, producton of table salt, recovery of valuable metals from industrial efuents and also food and pharmacy processing like desalinaton of cheese whey and demineralizaton of sugarcane juice as well as manufacturing of basic chemical products. Moreover, they play some important parts in environmental protecton, treatng industrial and biological efuents and many more processes [2, 3]. A lot of researches have already been performed to improve the IEMs’ physico-chemical propertes, which they are resulted in various modifcaton techniques. Furthermore, variaton of functonal groups type, selecton of diferent polymeric matrices, polymers blending, additves loading, alteraton of cross-link density and surface modifcaton are the important techniques to obtain superior IEMs [2-5]. Preparing the novel heterogeneous caton exchange membranes with appropriate physico-chemical propertes for the applicaton