The ins and outs of photo-assisted microbial electrochemical systems for synchronous wastewater treatment and bioenergy recovery

Genping Yi; Bo Wang; Yufa Feng; Difan Fang; Liming Yang; Wenzong Liu; Yifeng Zhang; Penghui Shao; Spyros G. Pavlostathis; Shenglian Luo; Xubiao Luo; Aijie Wang

doi:10.1016/j.resconrec.2022.106230

The ins and outs of photo-assisted microbial electrochemical systems for synchronous wastewater treatment and bioenergy recovery

Genping Yi
, Bo Wang
, Yufa Feng
, Difan Fang
, Liming Yang^*
, Wenzong Liu
, Yifeng Zhang
, Penghui Shao
, Spyros G. Pavlostathis
, Shenglian Luo
, Xubiao Luo
, Aijie Wang

^*Corresponding author for this work

Nanchang Hangkong University
Harbin Institute of Technology Shenzhen
Aarhus University
Technical University of Denmark
Georgia Institute of Technology

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

44 Scopus citations

Abstract

Wastewater, as the used water, carries huge energy that is frequently ignored and unexploited. Microbes, as bioelectrocatalysts in microbial electrochemical systems (MESs), can convert chemical energy stored in biodegradable matrixes from wastewater to bioelectricity and chemicals. However, due to sluggish wastewater treatment rates and bioenergy production, wider applications have been hampered. Currently, photo-assisted MESs, combined electrochemical/photochemical driving force with microbial catalysis, have emerged as a sustainable platform to enhance pollutants degradation and bioenergy recovery from wastewater with the aid of solar light, accompanied by reasonable energy investment and minimal environmental disturbance. Nevertheless, the development of photo-assisted MESs is still in its infancy. This work broadly concludes present photo-assisted MESs wastewater treatment technologies and their overall limitations in terms of performance and the future advancements that will be necessary to make them more widely applicable. Herein, crucial factors influencing the performance of these photo-assisted MESs, such as the reactor types (bioanode-photocathode, photoanode-biocathode, photomicrobial electrode, and photosynthetic bacteria/algae MESs), the bandgap of semiconductor and microbe species are discussed. Furthermore, prominent research accomplishments of photo-assisted MESs with an emphasis on eliminating contaminants (initial concentration, removal efficiency, and removal rate) and recovering bioenergy (product types, production rate, and current density) from various wastewaters are systematically summarized. Finally, present challenges and prospects in the field of photo-assisted MESs technology are discussed, mainly including the optimization of electrode materials, screening and culture of microorganisms, scale-up of bioreactors, intermittency of solar energy, and other complications overarchingly shared with photo-assisted microbial electrochemical wastewater treatment and bioenergy recovery.

Original language	English
Article number	106230
Journal	Resources, Conservation and Recycling
Volume	181
DOIs	https://doi.org/10.1016/j.resconrec.2022.106230
State	Published - Jun 2022
Externally published	Yes

Keywords

Abbreviations
Bioenergy recovery
Cod, chemical oxygen demand
Eams, electrochemically active microorganisms
Eden, electrotrophic denitrification
Eet, extracellular electron transfer
Electron transfer
H
Mecs, microbial electrolysis cells
Mess, microbial electrochemical systems
Mfcs, microbial fuel cells
Microbial electrochemical systems
Mo, methyl orange
Nhe, normal hydrogen electrode
Pec, photoelectrochemical cell
Peden, photoelectrotrophic denitrification system
Semiconductors
Solar energy
Wastewater treatment
rGO@PPy, Reduced graphene oxide-polypyrrole

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10.1016/j.resconrec.2022.106230

Cite this

Yi, G., Wang, B., Feng, Y., Fang, D., Yang, L., Liu, W., Zhang, Y., Shao, P., Pavlostathis, S. G., Luo, S., Luo, X., & Wang, A. (2022). The ins and outs of photo-assisted microbial electrochemical systems for synchronous wastewater treatment and bioenergy recovery. Resources, Conservation and Recycling, 181, Article 106230. https://doi.org/10.1016/j.resconrec.2022.106230

@article{076bc454b51a46b8bb32ac2c1b738083,

title = "The ins and outs of photo-assisted microbial electrochemical systems for synchronous wastewater treatment and bioenergy recovery",

abstract = "Wastewater, as the used water, carries huge energy that is frequently ignored and unexploited. Microbes, as bioelectrocatalysts in microbial electrochemical systems (MESs), can convert chemical energy stored in biodegradable matrixes from wastewater to bioelectricity and chemicals. However, due to sluggish wastewater treatment rates and bioenergy production, wider applications have been hampered. Currently, photo-assisted MESs, combined electrochemical/photochemical driving force with microbial catalysis, have emerged as a sustainable platform to enhance pollutants degradation and bioenergy recovery from wastewater with the aid of solar light, accompanied by reasonable energy investment and minimal environmental disturbance. Nevertheless, the development of photo-assisted MESs is still in its infancy. This work broadly concludes present photo-assisted MESs wastewater treatment technologies and their overall limitations in terms of performance and the future advancements that will be necessary to make them more widely applicable. Herein, crucial factors influencing the performance of these photo-assisted MESs, such as the reactor types (bioanode-photocathode, photoanode-biocathode, photomicrobial electrode, and photosynthetic bacteria/algae MESs), the bandgap of semiconductor and microbe species are discussed. Furthermore, prominent research accomplishments of photo-assisted MESs with an emphasis on eliminating contaminants (initial concentration, removal efficiency, and removal rate) and recovering bioenergy (product types, production rate, and current density) from various wastewaters are systematically summarized. Finally, present challenges and prospects in the field of photo-assisted MESs technology are discussed, mainly including the optimization of electrode materials, screening and culture of microorganisms, scale-up of bioreactors, intermittency of solar energy, and other complications overarchingly shared with photo-assisted microbial electrochemical wastewater treatment and bioenergy recovery.",

keywords = "Abbreviations, Bioenergy recovery, Cod, chemical oxygen demand, Eams, electrochemically active microorganisms, Eden, electrotrophic denitrification, Eet, extracellular electron transfer, Electron transfer, H, Mecs, microbial electrolysis cells, Mess, microbial electrochemical systems, Mfcs, microbial fuel cells, Microbial electrochemical systems, Mo, methyl orange, Nhe, normal hydrogen electrode, Pec, photoelectrochemical cell, Peden, photoelectrotrophic denitrification system, Semiconductors, Solar energy, Wastewater treatment, rGO@PPy, Reduced graphene oxide-polypyrrole",

author = "Genping Yi and Bo Wang and Yufa Feng and Difan Fang and Liming Yang and Wenzong Liu and Yifeng Zhang and Penghui Shao and Pavlostathis, \{Spyros G.\} and Shenglian Luo and Xubiao Luo and Aijie Wang",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2022",

month = jun,

doi = "10.1016/j.resconrec.2022.106230",

language = "英语",

volume = "181",

journal = "Resources, Conservation and Recycling",

issn = "0921-3449",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - The ins and outs of photo-assisted microbial electrochemical systems for synchronous wastewater treatment and bioenergy recovery

AU - Yi, Genping

AU - Wang, Bo

AU - Feng, Yufa

AU - Fang, Difan

AU - Yang, Liming

AU - Liu, Wenzong

AU - Zhang, Yifeng

AU - Shao, Penghui

AU - Pavlostathis, Spyros G.

AU - Luo, Shenglian

AU - Luo, Xubiao

AU - Wang, Aijie

PY - 2022/6

Y1 - 2022/6

N2 - Wastewater, as the used water, carries huge energy that is frequently ignored and unexploited. Microbes, as bioelectrocatalysts in microbial electrochemical systems (MESs), can convert chemical energy stored in biodegradable matrixes from wastewater to bioelectricity and chemicals. However, due to sluggish wastewater treatment rates and bioenergy production, wider applications have been hampered. Currently, photo-assisted MESs, combined electrochemical/photochemical driving force with microbial catalysis, have emerged as a sustainable platform to enhance pollutants degradation and bioenergy recovery from wastewater with the aid of solar light, accompanied by reasonable energy investment and minimal environmental disturbance. Nevertheless, the development of photo-assisted MESs is still in its infancy. This work broadly concludes present photo-assisted MESs wastewater treatment technologies and their overall limitations in terms of performance and the future advancements that will be necessary to make them more widely applicable. Herein, crucial factors influencing the performance of these photo-assisted MESs, such as the reactor types (bioanode-photocathode, photoanode-biocathode, photomicrobial electrode, and photosynthetic bacteria/algae MESs), the bandgap of semiconductor and microbe species are discussed. Furthermore, prominent research accomplishments of photo-assisted MESs with an emphasis on eliminating contaminants (initial concentration, removal efficiency, and removal rate) and recovering bioenergy (product types, production rate, and current density) from various wastewaters are systematically summarized. Finally, present challenges and prospects in the field of photo-assisted MESs technology are discussed, mainly including the optimization of electrode materials, screening and culture of microorganisms, scale-up of bioreactors, intermittency of solar energy, and other complications overarchingly shared with photo-assisted microbial electrochemical wastewater treatment and bioenergy recovery.

AB - Wastewater, as the used water, carries huge energy that is frequently ignored and unexploited. Microbes, as bioelectrocatalysts in microbial electrochemical systems (MESs), can convert chemical energy stored in biodegradable matrixes from wastewater to bioelectricity and chemicals. However, due to sluggish wastewater treatment rates and bioenergy production, wider applications have been hampered. Currently, photo-assisted MESs, combined electrochemical/photochemical driving force with microbial catalysis, have emerged as a sustainable platform to enhance pollutants degradation and bioenergy recovery from wastewater with the aid of solar light, accompanied by reasonable energy investment and minimal environmental disturbance. Nevertheless, the development of photo-assisted MESs is still in its infancy. This work broadly concludes present photo-assisted MESs wastewater treatment technologies and their overall limitations in terms of performance and the future advancements that will be necessary to make them more widely applicable. Herein, crucial factors influencing the performance of these photo-assisted MESs, such as the reactor types (bioanode-photocathode, photoanode-biocathode, photomicrobial electrode, and photosynthetic bacteria/algae MESs), the bandgap of semiconductor and microbe species are discussed. Furthermore, prominent research accomplishments of photo-assisted MESs with an emphasis on eliminating contaminants (initial concentration, removal efficiency, and removal rate) and recovering bioenergy (product types, production rate, and current density) from various wastewaters are systematically summarized. Finally, present challenges and prospects in the field of photo-assisted MESs technology are discussed, mainly including the optimization of electrode materials, screening and culture of microorganisms, scale-up of bioreactors, intermittency of solar energy, and other complications overarchingly shared with photo-assisted microbial electrochemical wastewater treatment and bioenergy recovery.

KW - Abbreviations

KW - Bioenergy recovery

KW - Cod, chemical oxygen demand

KW - Eams, electrochemically active microorganisms

KW - Eden, electrotrophic denitrification

KW - Eet, extracellular electron transfer

KW - Electron transfer

KW - H

KW - Mecs, microbial electrolysis cells

KW - Mess, microbial electrochemical systems

KW - Mfcs, microbial fuel cells

KW - Microbial electrochemical systems

KW - Mo, methyl orange

KW - Nhe, normal hydrogen electrode

KW - Pec, photoelectrochemical cell

KW - Peden, photoelectrotrophic denitrification system

KW - Semiconductors

KW - Solar energy

KW - Wastewater treatment

KW - rGO@PPy, Reduced graphene oxide-polypyrrole

UR - https://www.scopus.com/pages/publications/85124760025

U2 - 10.1016/j.resconrec.2022.106230

DO - 10.1016/j.resconrec.2022.106230

M3 - 文献综述

AN - SCOPUS:85124760025

SN - 0921-3449

VL - 181

JO - Resources, Conservation and Recycling

JF - Resources, Conservation and Recycling

M1 - 106230

ER -

The ins and outs of photo-assisted microbial electrochemical systems for synchronous wastewater treatment and bioenergy recovery

Abstract

Keywords

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