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A chitosan-natural zeolite composite membrane was used as a proton exchange membrane (PEM) separator in a Microbial Fuel Cell (MFC) to treat surimi wastewater, achieving improved performance and reduced organic load.

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What they did

System
MFC

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Abstract

Microbial Fuel Cell (MFC) is a technology that uses exoelectrogenic bacteria to produce electrical energy. This study aims to determine the effect of the ratio of natural chitosan and zeolite on the characteristics of the chitosan / zeolite composite membrane as a PEM separator in MFC, to determine the performance of MFC in producing electricity, and to determine the performance of reducing the organic load of fishery wastewater in MFC technology applications. The chitosan/zeolite separator membrane was made with different ratio of chitosan and natural zeolite 1: 3, 1:1, 3: 1, and without a membrane (w/w). The chitosan / zeolite separator membrane is a proton exchange membrane that can transfer 20% positive ions. Separator membrane with a ratio of 3: 1 resulted in a tensile strength value of 0,855 MPa and a water uptake value of 1,8%, and ratio of 1:1 produced the highest conductivity value of 10,57 S/cm, the highest electric voltage was 0,59 V, the highest electric current was 0,51 mA, and the highest electric power was 0,30 mW. The values of COD, BOD, and TAN decreased by 45%, 46%, and 92%, and the pH value increased to 8,4.

Key findings

  • The chitosan/zeolite separator membrane with a ratio of 3:1 resulted in a tensile strength value of 0.855 MPa and a water uptake value of 1.8%.
  • The ratio of 1:1 produced the highest conductivity value of 10.57 S/cm, the highest electric voltage of 0.59 V, the highest electric current of 0.51 mA, and the highest electric power of 0.30 mW.
  • The values of COD, BOD, and TAN decreased by 45%, 46%, and 92%, and the pH value increased to 8.4.

Keywords

ChitosanZeoliteMicrobial fuel cellMembraneWastewaterSeparator (oil production)

Identifiers

DOI
10.35308/jpterpadu.v4i2.8478
Journal
Jurnal Perikanan Terpadu
Year
2024