A microbial electrochemical hybrid system for simultaneous sludge treatment, acid production, and desalination

Peng Zhang; Zhengyi Sun; Jinshuo Zhang; Bo Pan; Yujie Feng

doi:10.1016/j.scitotenv.2020.144153

A microbial electrochemical hybrid system for simultaneous sludge treatment, acid production, and desalination

Peng Zhang
, Zhengyi Sun
, Jinshuo Zhang
, Bo Pan
, Yujie Feng^*

^*Corresponding author for this work

Kunming University of Science and Technology
Yunnan Key Lab of Soil Carbon Sequestration and Pollution Control
School of Environment, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Excess sludge production from wastewater treatment plants has significantly increased, and sludge disposal has become a serious social and environmental problem. In this study, we constructed a microbial electrochemical hybrid system (MEHS) for simultaneous electricity generation, acid and alkali production, desalination, alkali pretreatment, and degradation of sludge. The alkaline solution generated in the MEHS was used for in situ sludge pretreatment. Owing to the efficiency in alkali pretreatment, a higher sludge degradation efficiency was obtained by the MEHS (Total chemical oxygen demand (TCOD) removal efficiency of 57.2%) than by the SMFC (TCOD removal efficiency of 51.7%). Moreover, the MEHS (0.165C) could recover more electricity from the sludge than a traditional single-chamber microbial fuel cell (SMFC, 0.133C). Additionally, the MEHS exhibited excellent performance in desalination (> 50%) and acid production. The system developed in this study provides a new solution for sludge degradation and multifunctional utilization.

Original language	English
Article number	144153
Journal	Science of the Total Environment
Volume	760
DOIs	https://doi.org/10.1016/j.scitotenv.2020.144153
State	Published - 15 Mar 2021
Externally published	Yes

Keywords

Alkali pretreatment
Bioelectrochemical system
Desalination
Sludge degradation

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10.1016/j.scitotenv.2020.144153

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@article{09c3eba430c944c49228dab0c3e4a714,

title = "A microbial electrochemical hybrid system for simultaneous sludge treatment, acid production, and desalination",

abstract = "Excess sludge production from wastewater treatment plants has significantly increased, and sludge disposal has become a serious social and environmental problem. In this study, we constructed a microbial electrochemical hybrid system (MEHS) for simultaneous electricity generation, acid and alkali production, desalination, alkali pretreatment, and degradation of sludge. The alkaline solution generated in the MEHS was used for in situ sludge pretreatment. Owing to the efficiency in alkali pretreatment, a higher sludge degradation efficiency was obtained by the MEHS (Total chemical oxygen demand (TCOD) removal efficiency of 57.2\%) than by the SMFC (TCOD removal efficiency of 51.7\%). Moreover, the MEHS (0.165C) could recover more electricity from the sludge than a traditional single-chamber microbial fuel cell (SMFC, 0.133C). Additionally, the MEHS exhibited excellent performance in desalination (> 50\%) and acid production. The system developed in this study provides a new solution for sludge degradation and multifunctional utilization.",

keywords = "Alkali pretreatment, Bioelectrochemical system, Desalination, Sludge degradation",

author = "Peng Zhang and Zhengyi Sun and Jinshuo Zhang and Bo Pan and Yujie Feng",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2021",

month = mar,

day = "15",

doi = "10.1016/j.scitotenv.2020.144153",

language = "英语",

volume = "760",

journal = "Science of the Total Environment",

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TY - JOUR

T1 - A microbial electrochemical hybrid system for simultaneous sludge treatment, acid production, and desalination

AU - Zhang, Peng

AU - Sun, Zhengyi

AU - Zhang, Jinshuo

AU - Pan, Bo

AU - Feng, Yujie

PY - 2021/3/15

Y1 - 2021/3/15

N2 - Excess sludge production from wastewater treatment plants has significantly increased, and sludge disposal has become a serious social and environmental problem. In this study, we constructed a microbial electrochemical hybrid system (MEHS) for simultaneous electricity generation, acid and alkali production, desalination, alkali pretreatment, and degradation of sludge. The alkaline solution generated in the MEHS was used for in situ sludge pretreatment. Owing to the efficiency in alkali pretreatment, a higher sludge degradation efficiency was obtained by the MEHS (Total chemical oxygen demand (TCOD) removal efficiency of 57.2%) than by the SMFC (TCOD removal efficiency of 51.7%). Moreover, the MEHS (0.165C) could recover more electricity from the sludge than a traditional single-chamber microbial fuel cell (SMFC, 0.133C). Additionally, the MEHS exhibited excellent performance in desalination (> 50%) and acid production. The system developed in this study provides a new solution for sludge degradation and multifunctional utilization.

AB - Excess sludge production from wastewater treatment plants has significantly increased, and sludge disposal has become a serious social and environmental problem. In this study, we constructed a microbial electrochemical hybrid system (MEHS) for simultaneous electricity generation, acid and alkali production, desalination, alkali pretreatment, and degradation of sludge. The alkaline solution generated in the MEHS was used for in situ sludge pretreatment. Owing to the efficiency in alkali pretreatment, a higher sludge degradation efficiency was obtained by the MEHS (Total chemical oxygen demand (TCOD) removal efficiency of 57.2%) than by the SMFC (TCOD removal efficiency of 51.7%). Moreover, the MEHS (0.165C) could recover more electricity from the sludge than a traditional single-chamber microbial fuel cell (SMFC, 0.133C). Additionally, the MEHS exhibited excellent performance in desalination (> 50%) and acid production. The system developed in this study provides a new solution for sludge degradation and multifunctional utilization.

KW - Alkali pretreatment

KW - Bioelectrochemical system

KW - Desalination

KW - Sludge degradation

UR - https://www.scopus.com/pages/publications/85097911155

U2 - 10.1016/j.scitotenv.2020.144153

DO - 10.1016/j.scitotenv.2020.144153

M3 - 文章

C2 - 33352332

AN - SCOPUS:85097911155

SN - 0048-9697

VL - 760

JO - Science of the Total Environment

JF - Science of the Total Environment

M1 - 144153

ER -

A microbial electrochemical hybrid system for simultaneous sludge treatment, acid production, and desalination

Abstract

Keywords

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