Ion-containing reverse osmosis membranes obtained by radiation grafting method |
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| Institution: | 1. School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China;2. Institute for Tropical Technology, Vietnam Academy of Science and Technology, Hanoi 122100, Viet Nam;3. Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico;1. Department of Civil Engineering, K.N. Toosi University of Technology, Tehran, Iran;2. School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran;3. Department of Chemical Engineering, University of Mississippi, MS 38677, United States;4. Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran;5. Department of Mechanical and Aerospace Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan;6. Department of Polymer Technology, Faculty of Chemistry, Gdańs University of Technology, G. Narutowicza 11/12, 80–233 Gdańs, Poland;1. Laboratory for Process Engineering for Sustainable Systems, Department of Chemical Engineering, Celestijnenlaan 200F, 3001 KU Leuven, Belgium;2. Faculty of Environmental Sciences, VNU University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai Road, Hanoi, Vietnam;3. School of Chemical Engineering, Zhengzhou University, Zhenzhou 450001, P.R. China;4. Faculty of Engineering and the Built Environment, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa;1. Computational Phytochemistry Laboratory, PG and Research Department of Botany and Microbiology, AVVM Sri Pushpam College (Autonomous) Poondi, Thanjavur (Dist), Tamil Nadu, India;2. Computer Aided Drug Design and Molecular Modeling Laboratory, Department of Bioinformatics, Alagappa University, Karaikudi 630004, Tamil Nadu, India;1. Food Engineering Department, Institut Teknologi Bandung, Jalan Let. Jen. Purn. Dr. (HC). Mashudi No.1/Jalan Raya Jatinangor KM 20,75, Sumedang 45363, Indonesia;2. Chemical Engineering Department, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia;3. Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia;4. Department of Chemical Engineering, University of Surabaya (UBAYA), Raya Kalirungkut (Tenggilis), Surabaya 60293, Indonesia;5. Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia |
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| Abstract: | Cationic membranes obtained by radiation grafting of acqueous acrylic acid onto low density polyethylene films followed by alkaline treatment to confer ionic character in the graft chains, were tested for reverse osmosis desalination of saline water. Selected physical properties of such membranes were investigated. The grafted membranes prossess good mechanical and electrical properties. Water uptake for the alkali-treated membrane was much higher than that of the alkali-untreated one. The effect of operation time, degree of grafting, applied pressure and feed concentration on the water flux and salt rejection for the grafted membranes was investigated. Such cationic membranes showed good durability, thermal and chemical stability, acceptable water flux and salt rejection which may make them acceptable for practical use in reverse osmosis desalination of sea water. |
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