Dual-Chamber Microbial Fuel Cell for Bioelectricity Generation Using Coastal Sediments: A Case from Kendari Bay

Authors

  • La Ode Ahmad Universitas Halu Oleo
  • Muhammad Iqbal Sya'bani Istianandar Universitas Halu Oleo
  • Wa Ode Novi Haryanti Universitas Halu Oleo
  • Ahmad Zaeni Universitas Halu Oleo
  • Alwahab Institut Sains Teknologi dan Kesehatan 'Aisyiyah Kendari
  • La Ode Ichlas Syahrullah Yunus Universitas Sembilanbelas November
  • Yusuf Ahmad Husaeni Politeknik Pratama Raha
  • Robby Sudarman Politeknik Negeri Bandung

DOI:

https://doi.org/10.26877/asset.v7i4.2086

Keywords:

Kendari Bay Sediment, bioeletricity, SMFC

Abstract

This study evaluates the potential of Kendari Bay sediment as an alternative source of electrical energy through the dual-chamber Sediment Microbial Fuel Cell (SMFC) technology. The research focused on sediment characterization, performance analysis using an aerator and KMnO₄, post-operation substrate changes, and the identification of electrogenic bacteria. The results showed that the sediment contained 43.24% moisture, 4.23% organic carbon, 1.08% total nitrogen, a C/N ratio of 3.92, pH 7.38, and conductivity of 11.56 mS. The SMFC generated a voltage of 0.404 V (aerator) and 1.628 V (KMnO₄), along with a current of 5.0 µA. After SMFC operation, organic content decreased, with 42.65% moisture, 4.06% organic carbon, 0.97% total nitrogen, a C/N ratio of 4.19, pH 7.86, and conductivity of 15.78 mS. Identified bacteria were Gram-positive Bacillus spp. These findings demonstrate that aerator and KMnO₄ application in dual-chamber SMFC significantly enhance energy conversion efficiency using marine sediment.

Author Biographies

  • La Ode Ahmad, Universitas Halu Oleo

    Department of Chemistry, Universitas Halu Oleo, Jl. H.E.A. Mokodompit, Kendari 93232, Southeast Sulawesi, Indonesia

  • Muhammad Iqbal Sya'bani Istianandar, Universitas Halu Oleo

    Department of Chemistry, Universitas Halu Oleo, Jl. H.E.A. Mokodompit, Kendari 93232, Southeast Sulawesi, Indonesia

  • Wa Ode Novi Haryanti, Universitas Halu Oleo

    Department of Chemistry, Universitas Halu Oleo, Jl. H.E.A. Mokodompit, Kendari 93232, Southeast Sulawesi, Indonesia

  • Ahmad Zaeni, Universitas Halu Oleo

    Department of Chemistry, Universitas Halu Oleo, Jl. H.E.A. Mokodompit, Kendari 93232, Southeast Sulawesi, Indonesia

  • Alwahab, Institut Sains Teknologi dan Kesehatan 'Aisyiyah Kendari

    Department of Chemistry, Institut Sains Teknologi dan Kesehatan ‘Aisyiyah Kendari, Jl. Kapten Piere Tendean No. 45a, Kendari 93116, Southeast Sulawesi, Indonesia

  • La Ode Ichlas Syahrullah Yunus, Universitas Sembilanbelas November

    Department of Mechanical Engineering, Universitas Sembilanbelas November Kolaka, Jl. Pemuda No. 339, Kolaka 93517, Southeast Sulawesi, Indonesia

  • Yusuf Ahmad Husaeni, Politeknik Pratama Raha

    Department of Medical Laboratory Technology, Politeknik Paramata Raha, Jl. Kartika, Raha 93614, Southeast Sulawesi, Indonesia

  • Robby Sudarman, Politeknik Negeri Bandung

    Department of Chemical Engineering, Politeknik Negeri Bandung, Jl. Gegerkalong Hilir, Bandung 40559, West Java, Indonesia

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Published

2025-11-13

Issue

Vol. 7 No. 4 (2025): August-October

Section

Articles