Simultaneous energy production and desalination in microbial electrochemical systems

Haiping Luo; Casey Forrestal; Peter Jenkins; Zhiyong J. Ren

Simultaneous energy production and desalination in microbial electrochemical systems

Haiping Luo, Casey Forrestal, Peter Jenkins, Zhiyong J. Ren

Research output: Contribution to journal › Conference article › peer-review

Abstract

Microbial electrochemical cells (MECs) enable microbial catalysis of electrochemical reactions for various applications. Here we investigated an integrated MEC to simultaneously desalinate salt water, produce H₂, and treat wastewater. The reactor is divided into three: chambers by inserting a pair of ion exchange membranes, with each chamber serves one of the three functions. With an added voltage of 0.8V, lab scale batch study shows the MEC achieved the highest H₂ production rate of 1.5 m³/m³ d, while also removing 98.8% of the 10 g/L NaCl. The anode recirculation further increased the current density from 87.2 to 140 A/m³ and improved desalination rate by 80% and H₂ production by 30%. Compared to the desalination efficiency, H₂ production was much more significantly affected by the applied voltage and cathode buffer capacity. Microbial community structure of the anodic biofilms is being analyzed to explore the effect of ions migration on the microbial population.

Original language	English (US)
Journal	ACS National Meeting Book of Abstracts
State	Published - 2011
Externally published	Yes
Event	241st ACS National Meeting and Exposition - Anaheim, CA, United States Duration: Mar 27 2011 → Mar 31 2011

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering

Cite this

@article{6f99227909c749e0a053b0d2dd2bb5e9,

title = "Simultaneous energy production and desalination in microbial electrochemical systems",

abstract = "Microbial electrochemical cells (MECs) enable microbial catalysis of electrochemical reactions for various applications. Here we investigated an integrated MEC to simultaneously desalinate salt water, produce H2, and treat wastewater. The reactor is divided into three: chambers by inserting a pair of ion exchange membranes, with each chamber serves one of the three functions. With an added voltage of 0.8V, lab scale batch study shows the MEC achieved the highest H2 production rate of 1.5 m3/m3 d, while also removing 98.8% of the 10 g/L NaCl. The anode recirculation further increased the current density from 87.2 to 140 A/m3 and improved desalination rate by 80% and H2 production by 30%. Compared to the desalination efficiency, H2 production was much more significantly affected by the applied voltage and cathode buffer capacity. Microbial community structure of the anodic biofilms is being analyzed to explore the effect of ions migration on the microbial population.",

author = "Haiping Luo and Casey Forrestal and Peter Jenkins and Ren, {Zhiyong J.}",

year = "2011",

language = "English (US)",

journal = "ACS National Meeting Book of Abstracts",

issn = "0065-7727",

publisher = "American Chemical Society",

note = "241st ACS National Meeting and Exposition ; Conference date: 27-03-2011 Through 31-03-2011",

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TY - JOUR

T1 - Simultaneous energy production and desalination in microbial electrochemical systems

AU - Luo, Haiping

AU - Forrestal, Casey

AU - Jenkins, Peter

AU - Ren, Zhiyong J.

PY - 2011

Y1 - 2011

N2 - Microbial electrochemical cells (MECs) enable microbial catalysis of electrochemical reactions for various applications. Here we investigated an integrated MEC to simultaneously desalinate salt water, produce H2, and treat wastewater. The reactor is divided into three: chambers by inserting a pair of ion exchange membranes, with each chamber serves one of the three functions. With an added voltage of 0.8V, lab scale batch study shows the MEC achieved the highest H2 production rate of 1.5 m3/m3 d, while also removing 98.8% of the 10 g/L NaCl. The anode recirculation further increased the current density from 87.2 to 140 A/m3 and improved desalination rate by 80% and H2 production by 30%. Compared to the desalination efficiency, H2 production was much more significantly affected by the applied voltage and cathode buffer capacity. Microbial community structure of the anodic biofilms is being analyzed to explore the effect of ions migration on the microbial population.

AB - Microbial electrochemical cells (MECs) enable microbial catalysis of electrochemical reactions for various applications. Here we investigated an integrated MEC to simultaneously desalinate salt water, produce H2, and treat wastewater. The reactor is divided into three: chambers by inserting a pair of ion exchange membranes, with each chamber serves one of the three functions. With an added voltage of 0.8V, lab scale batch study shows the MEC achieved the highest H2 production rate of 1.5 m3/m3 d, while also removing 98.8% of the 10 g/L NaCl. The anode recirculation further increased the current density from 87.2 to 140 A/m3 and improved desalination rate by 80% and H2 production by 30%. Compared to the desalination efficiency, H2 production was much more significantly affected by the applied voltage and cathode buffer capacity. Microbial community structure of the anodic biofilms is being analyzed to explore the effect of ions migration on the microbial population.

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M3 - Conference article

AN - SCOPUS:80051872579

SN - 0065-7727

JO - ACS National Meeting Book of Abstracts

JF - ACS National Meeting Book of Abstracts

T2 - 241st ACS National Meeting and Exposition

Y2 - 27 March 2011 through 31 March 2011

ER -

Simultaneous energy production and desalination in microbial electrochemical systems

Abstract

All Science Journal Classification (ASJC) codes

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