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IrEMS is a nonprofit organization of national or regional members. Its primary purpose is to provide a means whereby those regional scientists engaged in environmental mutagenesis research and related fields in Iran and other regional countries may communicate more readily with each other, thereby advancing both basic and applied research in this area of science.

Journal Article

Journal article

Desalination of Kashan City’s Water Using PEBA-Based Nanocomposite Membranes via Pervaporation  [2017]

Azadikhah Marian, Soheill; Asghari, Morteza; Amini, Zahra;

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In this work, performance of composite membranes was investigated for desalination of Kashan city’s water via pervaporation process. PEBA/PAN/PE, PEBA/PSF/PE and PEBA+NaX/PSF/PE composite membranes that used, was synthesized via a phase inversion route. For all experiments under 45◦C, salt rejection was too high and equals to 99.9% that this quantity dropped by increasing the temperature that cause membrane swelling in high temperatures. Water contact angle and water take-up were measured to evaluate the hydrophilicity of the membrane. Also the effect of operating conditions including feed temperature and permeate pressure on permeability and selectivity is discussed. A permeate flux of 4.93 kg/m2h with salt rejection of 99.9% could be achieved at a feed temperature of 50 °C and a vacuum of 0.04 bar. Apparent diffusion coefficients of water at various permeate pressure and feed temperature are calculated. The most effective parameter was feed temperature.