One of the most important environmental problems of the Solvay process, which is one of the synthetic soda production processes, is the liquid and solid wastes generated by the distillation unit. This study investigates the effect of membrane type on the formation of ammonia (NH3) and Hydrochloric acid (HCI) in a two-compartment bipolar membrane electrodialysis (BMED) system. The BMED process was evaluated as a potential replacement for the distillation unit in synthetic soda production, specifically focusing on the impact of different membranes on NH3 and HCI formation. Disposal of distillation waste directly into the environment without any treatment can cause serious ecological problems in the long term. Bipolar membranes (BM) and anion exchange membranes (AEM) were utilized in this study in which the BMED cell was designed as a two-compartment, three-repeat design. The experiments were carried out by keeping the current/voltage values (14V/4.8 A) constant in the system using direct current (DC). Two different commercial membrane types, FumaTech and PCCell, were used as parameters in the study. The initial feed concentrations were kept constant and the conversion of salt solution to ammonia and HCl acid was monitored. The findings indicated that HCl and NH4OH concentrations were higher in PCCell membranes. The results showed that acid and base production from ammonium chloride can be realized simultaneously with both membranes and distillation waste can be disposed of.
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