SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2021, Vol. 32 ›› Issue (4): 423-430.DOI: 10.1016/j.cjche.2020.10.016

• Energy, Resources and Environmental Technology • 上一篇    下一篇

Comparative study of different hydro-dynamic flow in microbial fuel cell stacks

Suransh Jain, Arvind Kumar Mungray   

  1. Chemical Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat 395007, India
  • 收稿日期:2020-05-25 修回日期:2020-06-28 出版日期:2021-04-28 发布日期:2021-06-19
  • 通讯作者: Arvind Kumar Mungray
  • 基金资助:
    Grants received from the DST-SERB, Government of India (File No. EEQ/2016/000802) to carry out this work is duly acknowledged.

Comparative study of different hydro-dynamic flow in microbial fuel cell stacks

Suransh Jain, Arvind Kumar Mungray   

  1. Chemical Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat 395007, India
  • Received:2020-05-25 Revised:2020-06-28 Online:2021-04-28 Published:2021-06-19
  • Contact: Arvind Kumar Mungray
  • Supported by:
    Grants received from the DST-SERB, Government of India (File No. EEQ/2016/000802) to carry out this work is duly acknowledged.

摘要: This work has investigated the scale-up potential of microbial fuel cells (MFCs) under stacking mode. Stacking was done in batch mode and continuous mode. Batch feeding mode stacks were operated in electrical series (S) and parallel (P) mode. Continuous feeding mode stacks were kept in electrically parallel mode with different hydro-dynamic patterns. The two continuous stacks were connected hydrodynamically in series (i.e. Parallel Dependent; PD) and parallel (i.e. Parallel Independent; PID) configurations. The performance of the continuous stacks was evaluated on the basis of COD consumption rate, power generation and coulombic efficiency. PID obtained highest power (0.47 mW) which was approximately 3.6 times that of PD configuration (0.13 mW). The rate of COD consumption was also highest in PID stack (3091.75 mg·L-1·d-1). Coulombic efficiency of the PID stack was 14.26% which was approximately 292.8% of the PD stack. The results confirmed that the parallel electrical connection hybridized with the independent hydro-dynamic flow gives the best possible results when working with stacking of MFCs.

关键词: Microbial fuel cells, Waste water, Hydro-dynamically independent, COD consumption, Fuel cell, Bioenergy

Abstract: This work has investigated the scale-up potential of microbial fuel cells (MFCs) under stacking mode. Stacking was done in batch mode and continuous mode. Batch feeding mode stacks were operated in electrical series (S) and parallel (P) mode. Continuous feeding mode stacks were kept in electrically parallel mode with different hydro-dynamic patterns. The two continuous stacks were connected hydrodynamically in series (i.e. Parallel Dependent; PD) and parallel (i.e. Parallel Independent; PID) configurations. The performance of the continuous stacks was evaluated on the basis of COD consumption rate, power generation and coulombic efficiency. PID obtained highest power (0.47 mW) which was approximately 3.6 times that of PD configuration (0.13 mW). The rate of COD consumption was also highest in PID stack (3091.75 mg·L-1·d-1). Coulombic efficiency of the PID stack was 14.26% which was approximately 292.8% of the PD stack. The results confirmed that the parallel electrical connection hybridized with the independent hydro-dynamic flow gives the best possible results when working with stacking of MFCs.

Key words: Microbial fuel cells, Waste water, Hydro-dynamically independent, COD consumption, Fuel cell, Bioenergy