The increasing entry of oil effluents into the environment and its pollution in the environment, has encouraged researchers to find new methods to treat these effluents. Ultrafiltration membrane technology has received much attention due to its many advantages for the treatment of wastewater contaminated with oil and oil materials compared to other methods in terms of high efficiency in the rate of separation of consumption, low energy consumption and low depreciation costs. The aim of this study was to improve the surface and performance of ultrafiltration membrane of hollow polypropylene fibers for the use of oil-containing effluents. For this purpose, first, the surface of polypropylene membrane was activated by gas-argon plasma process and then bonded with hydrophilic ethylene glycol. Infrared (ATR), contact angle and tensile tests were performed to eva‎luate the surface characteristics. Also, to eva‎luate the performance of the membrane, measuring the leakage of pure leachate, the degree of Fouling of the membrane with a solution of dry milk and water, the amount of oil removal from the water, along with the amount of transmission and turbidity were analyzed. The results showed a more than fourfold increase in pure water flux and a decrease in contact angle from 94 ° to 79.22 ° due to the formation of hydrophilic functional groups resulting from the bonding of polyethylene glycol to the surface of the hollow fiber polypropylene membrane. In addition, the modified membrane showed 99% oil removal and 99.99% turbidity removal.

مرتضي صادقي

اكبر خدامي

سعيد نوري خراساني، افسانه فخار