Mikrobiyal Yakıt Hücrelerinde Membran ve İşletme Şartlarındaki Değişimin Güç Üretimine Etkisi
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Cation exchange membranes (CEM) have been shown in previous studies to cause some operational problems in MFCs. In this thesis, performance of a MFC with different membranes and without a CEM is investigated. For this purpose three different ion exchange membranes (CMI-7000S, Selemion CMF and Selemion HSF) and non-CEM MFC (carbon sheet) was used in a H type MFC. When the MFCs performances with different separators were arranged by their maximum power density, these results from high to low were HSF, non-CEM MFC, CMF and CMI. Also; when low pH solutions were used in the cathode chamber; reducing the internal resistance in a MFC improved the power production by %30 compared to neutral pH. On the other hand, when nitrate was used as the electron acceptor in an abiotic cathode in a MFC, by reducing the nitrate concentration from 310 mg L to 12 mg L, a maximum of %96 of decrease in the nitrate removal rate, a decrease of %59 in current production and %50 in coulomb efficiency was observed.