Improved recovery of bioenergy and osmotic water in an osmotic microbial fuel cell using micro-diffuser assisted marine aerobic biofilm on cathode

Abdullah Al-Mamun, Mahad Said Baawain, Bipro Ranjan Dhar, In S. Kim

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The research work demonstrated the performance of an integrated MFC capable of recovering osmotic water and electricity using forward osmosis in a double-chambered baffled channel reactor. The potential of applying electrochemically active (EA) aerobic marine biofilms on the cathode electrode was explored by eliminating the costly Pt-catalyst, thus making the system more eco-friendly and sustainable. The bio-cathode osmotic microbial fuel cell (OsMFC) used in this study was operated by two different conditions of oxygen supplied into the marine EA biofilms (i.e., the conventional oxygen supply by perforated pipes, and the enhanced oxygen supply by micro-pore air diffuser). The system recovered a maximum electrical power, 28.90 W m−3 net cathodic compartments (NCC), while removing 63 ± 8% of COD from raw domestic wastewater. The rate of osmotic water recovery was 1.46 ± 0.04 L m−2 h−1. The amount of recovered osmotic water showed a great potential for integrating osmosis into the marine bio-cathode OsMFC. The dominating bacterial communities identified in the cathodic biofilms were mainly gamma-Proteobacteria and alpha-Proteobacteria.

Original languageEnglish
Pages (from-to)235-242
Number of pages8
JournalBiochemical Engineering Journal
Volume128
DOIs
Publication statusPublished - Dec 15 2017

Fingerprint

Bioelectric Energy Sources
Microbial fuel cells
Biofilms
Oxygen supply
Electrodes
Osmosis
Cathodes
Alphaproteobacteria
Recovery
Water
Oxygen
Gammaproteobacteria
Electricity
Wastewater
Waste Water
Pipe
Catalysts
Air
Research
Proteobacteria

Keywords

  • Biocatalysis
  • Biofilms
  • Bioreactors
  • Microbial fuel cell
  • Osmosis
  • Wastewater treatment

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Environmental Engineering
  • Biomedical Engineering

Cite this

@article{0d827ce5c0f14985a917a8c8a458ba15,
title = "Improved recovery of bioenergy and osmotic water in an osmotic microbial fuel cell using micro-diffuser assisted marine aerobic biofilm on cathode",
abstract = "The research work demonstrated the performance of an integrated MFC capable of recovering osmotic water and electricity using forward osmosis in a double-chambered baffled channel reactor. The potential of applying electrochemically active (EA) aerobic marine biofilms on the cathode electrode was explored by eliminating the costly Pt-catalyst, thus making the system more eco-friendly and sustainable. The bio-cathode osmotic microbial fuel cell (OsMFC) used in this study was operated by two different conditions of oxygen supplied into the marine EA biofilms (i.e., the conventional oxygen supply by perforated pipes, and the enhanced oxygen supply by micro-pore air diffuser). The system recovered a maximum electrical power, 28.90 W m−3 net cathodic compartments (NCC), while removing 63 ± 8{\%} of COD from raw domestic wastewater. The rate of osmotic water recovery was 1.46 ± 0.04 L m−2 h−1. The amount of recovered osmotic water showed a great potential for integrating osmosis into the marine bio-cathode OsMFC. The dominating bacterial communities identified in the cathodic biofilms were mainly gamma-Proteobacteria and alpha-Proteobacteria.",
keywords = "Biocatalysis, Biofilms, Bioreactors, Microbial fuel cell, Osmosis, Wastewater treatment",
author = "Abdullah Al-Mamun and Baawain, {Mahad Said} and Dhar, {Bipro Ranjan} and Kim, {In S.}",
year = "2017",
month = "12",
day = "15",
doi = "10.1016/j.bej.2017.09.020",
language = "English",
volume = "128",
pages = "235--242",
journal = "Biochemical Engineering Journal",
issn = "1369-703X",
publisher = "Elsevier",

}

TY - JOUR

T1 - Improved recovery of bioenergy and osmotic water in an osmotic microbial fuel cell using micro-diffuser assisted marine aerobic biofilm on cathode

AU - Al-Mamun, Abdullah

AU - Baawain, Mahad Said

AU - Dhar, Bipro Ranjan

AU - Kim, In S.

PY - 2017/12/15

Y1 - 2017/12/15

N2 - The research work demonstrated the performance of an integrated MFC capable of recovering osmotic water and electricity using forward osmosis in a double-chambered baffled channel reactor. The potential of applying electrochemically active (EA) aerobic marine biofilms on the cathode electrode was explored by eliminating the costly Pt-catalyst, thus making the system more eco-friendly and sustainable. The bio-cathode osmotic microbial fuel cell (OsMFC) used in this study was operated by two different conditions of oxygen supplied into the marine EA biofilms (i.e., the conventional oxygen supply by perforated pipes, and the enhanced oxygen supply by micro-pore air diffuser). The system recovered a maximum electrical power, 28.90 W m−3 net cathodic compartments (NCC), while removing 63 ± 8% of COD from raw domestic wastewater. The rate of osmotic water recovery was 1.46 ± 0.04 L m−2 h−1. The amount of recovered osmotic water showed a great potential for integrating osmosis into the marine bio-cathode OsMFC. The dominating bacterial communities identified in the cathodic biofilms were mainly gamma-Proteobacteria and alpha-Proteobacteria.

AB - The research work demonstrated the performance of an integrated MFC capable of recovering osmotic water and electricity using forward osmosis in a double-chambered baffled channel reactor. The potential of applying electrochemically active (EA) aerobic marine biofilms on the cathode electrode was explored by eliminating the costly Pt-catalyst, thus making the system more eco-friendly and sustainable. The bio-cathode osmotic microbial fuel cell (OsMFC) used in this study was operated by two different conditions of oxygen supplied into the marine EA biofilms (i.e., the conventional oxygen supply by perforated pipes, and the enhanced oxygen supply by micro-pore air diffuser). The system recovered a maximum electrical power, 28.90 W m−3 net cathodic compartments (NCC), while removing 63 ± 8% of COD from raw domestic wastewater. The rate of osmotic water recovery was 1.46 ± 0.04 L m−2 h−1. The amount of recovered osmotic water showed a great potential for integrating osmosis into the marine bio-cathode OsMFC. The dominating bacterial communities identified in the cathodic biofilms were mainly gamma-Proteobacteria and alpha-Proteobacteria.

KW - Biocatalysis

KW - Biofilms

KW - Bioreactors

KW - Microbial fuel cell

KW - Osmosis

KW - Wastewater treatment

UR - http://www.scopus.com/inward/record.url?scp=85031789826&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85031789826&partnerID=8YFLogxK

U2 - 10.1016/j.bej.2017.09.020

DO - 10.1016/j.bej.2017.09.020

M3 - Article

VL - 128

SP - 235

EP - 242

JO - Biochemical Engineering Journal

JF - Biochemical Engineering Journal

SN - 1369-703X

ER -