Optimization and performance evaluation of microbial fuel cell by varying agar concentration using different salts in salt bridge medium

• Autorzy: Singh K. , Dharmendra

Identyfikatory

DOI

10.5604/01.3001.0014.1193

• Języki publikacji: EN

Abstrakty

EN

Purpose: Comparative study of various agar-agar (C14H24O9) percentage and different salts concentration in the salt bridge is carried out to check the efficiency of microbial fuel cell. Design/methodology/approach: Dual chambered microbial fuel cell was used for the overall experiments. Anode and cathode chambers were made of 500 ml plastic jar. Salt bridge was fabricated with agar-agar technical and 3 M NaCl in a PVC pipe of 2 cm long. Chemical Oxygen Demand, pH and electrical conductivity of wastewater were examined. Oxygen was supplied in the cathode chamber using the aquarium pump. Voltage (open circuit voltage) was observed using digital multimeter. Graphite rods were used as anode and cathode electrodes. Findings: Salt bridge was constructed of 3 M NaCl with 5, 7.5, 10 and 12 percent variation of agar amounts in MFC. The maximum outputs were observed 301, 306, 325 and 337.25 mV with the variation of agar 5, 7.5, 10 and 12 percentages respectively as well as chemical oxygen demand (COD) removal efficiency was observed 47.92, 56.25, 52.08 and 64.58 percentages respectively. The optimum agar concentration was found to be 12 percent and a maximum voltage of 337.25 mV and COD removal of 64.58 percent was achieved. After the optimization of agar percentage two salts i.e., Sodium chloride and potassium chloride were analysed. This study also reveals that the NaCl salt bridge is more efficient than KCl salt bridge for the same agar concentration. The maximum voltage for NaCl and KCl were 319 and 312 mV respectively. Research limitations/implications: The amount of electricity production is low and field scale implementation is difficult using microbial fuel cell. The research is still on progress in this field. Originality/value: here is very little research with salt bridge and MFC. Comparative study of different mole of salt is available but agar variation is not yet studied.

Słowa kluczowe

EN

agar; energy production; microbial fuel cell; salt bridge; wastewater

PL

agar; produkcja energii; mikrobiologiczne ogniwo paliwowe; most solny; ścieki

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2020
• Tom: Vol. 101, nr 2
• Strony: 79--84
• Opis fizyczny: Bibliogr. 28 poz.

Twórcy

autor

Singh K.

• PhD Scholar, National Institute of Technology, Hamirpur, (H.P.), 177005, India

autor

Dharmendra

• Assistant Professor, National Institute of Technology, Hamirpur, (H.P.), 177005, India

Bibliografia

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