کنفرانس بین المللی فناوری و مدیریت انرژی

صفحه اصلی / هشتمین کنفرانس بین المللی فناوری و مدیریت انرژی

Simultaneous investigation of the increase in organic load of sediment using spirulina algae powder and increase in catholyte conductivity on sediment microbial fuel cell performance

نویسندگان :

Hanie Soleimani¹ Mostafa Rahimnejad² Mehrdad Mashkour³

1- دانشگاه صنعتی نوشیروانی بابل 2- دانشگاه صنعتی نوشیروانی بابل 3- دانشگاه صنعتی نوشیروانی بابل

کلمات کلیدی :

Sediment microbial fuel cell،Power density،Spirulina algae powder،Conductivity of the catholyte

چکیده :

Sediment microbial fuel cells (SMFCs) are bioelectrochemical devices capable of producing bioelectricity. However, the amount of low organic matter sediment limits their output power. Furthermore, another factor, which causes low output power in Sediment microbial fuel cells, is the low conductivity of the catholyte. In the current paper, we employed spirulina algae powder to increase the organic load of the sediment. We also investigated the effect of catholyte conductivity on SMFC performance by using three different periods, including river water with a conductivity of 2mS, tap water with a conductivity of 243mS, and synthetic water with a conductivity of 2mS. According to the results of the power density curves, the maximum power density by SMFC-1, 66.5 mW/m2 was obtained in the third phase (during the presence of artificial water in the catholyte), which was 77% better than SMFC-01. In addition, according to the polarization curves of SMFC-1 and SMFC-01, the maximum current density also increased with increasing conductivity, so the highest current density was produced by SMFC-1 in the third phase. Also, CV and EIS analyses showed an increase in the current density rate and a fall in internal resistance. These results indicated the positive effect of the presence of algae powder in the sediment and an increase in catholyte conductivity on the power of sediment microbial fuel cells.