بررسي تاثير لايه تقويت كننده بر عملكرد غشاي دو قطبي

Study the Impact of the Reinforcement Textile on the Efficiency of the Bipolar Membranes

بررسي تاثير لايه تقويت كننده بر عملكرد غشاي دو قطبي تاثير لايه تقويت كننده بر روي انتخابگري و توانايي شكافت آب توست غشاي دو قطبي همچنين ميزان مصرف انرژي بوسيله تكنيكهاي الكتروشيميايي مورد تحقيق قرار گرفته است . دو نوع غشاي دو قطبي تهيه شده كه در وجود لايه تقويت كننده متفاوت ميباشند . غشاهاي دو قطبي مورد آزمايش قرار گرفتند كه نتايج بدست آماده تاييد ميكنند كه غشاي تقويت كننده موجب بهبود عملكرد غشاي دو قطبي ميگردد.

The effect of the reinforcement textile on the selectivity, water splitting capability and the energy consumption of the bipolar membrane (BM) was investigated with electrochemical methods. Two types of BMs were prepared which differ in the presence of the polyester textile as reinforcement. The electrochemical techniques including current-voltage curve, chronopotentiometry, and impedance spectroscopy were used to characterize the BMs. Furthermore, a lab scale module was used to perform the bipolar membrane electrodialysis (EDBM). The acid and base produced in EDBM process were also subjected to the further analysis to calculate the current efficiency, product purity and energy consumption of EDBM performed with each type of BM. The obtained results showed that the selectivity of the BM was improved after being reinforced with the polyester textile. However, the water splitting rate was not affected with reinforcing. The results obtained with electrochemical methods coincided with that of EDBM indicating their reliability.