Bioelectrochemically-assisted anaerobic composting process enhancing compost maturity of dewatered sludge with synchronous electricity generation

Hang Yu; Junqiu Jiang; Qingliang Zhao; Kun Wang; Yunshu Zhang; Zhen Zheng; Xiaodi Hao

doi:10.1016/j.biortech.2015.06.057

Bioelectrochemically-assisted anaerobic composting process enhancing compost maturity of dewatered sludge with synchronous electricity generation

Hang Yu
, Junqiu Jiang
, Qingliang Zhao^*
, Kun Wang
, Yunshu Zhang
, Zhen Zheng
, Xiaodi Hao

^*Corresponding author for this work

School of Environment

Harbin Institute of Technology
Harbin Institute of Technology
Beijing University of Civil Engineering and Architecture

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

29 Scopus citations

Abstract

Bioelectrochemically-assisted anaerobic composting process (AnC_BE) with dewatered sludge as the anode fuel was constructed to accelerate composting of dewatered sludge, which could increase the quality of the compost and harvest electric energy in comparison with the traditional anaerobic composting (AnC). Results revealed that the AnC_BE yielded a voltage of 0.60±0.02V, and total COD (TCOD) removal reached 19.8±0.2% at the end of 35d. The maximum power density was 5.6W/m³. At the end of composting, organic matter content (OM) reduction rate increased to 19.5±0.2% in AnC_BE and to 12.9±0.1% in AnC. The fuzzy comprehensive assessment (FCA) result indicated that the membership degree of class I of AnC_BE compost (0.64) was higher than that of AnC compost (0.44). It was demonstrated that electrogenesis in the AnC_BE could improve the sludge stabilization degree, accelerate anaerobic composting process and enhance composting maturity with bioelectricity generation.

Original language	English
Pages (from-to)	1-7
Number of pages	7
Journal	Bioresource Technology
Volume	193
DOIs	https://doi.org/10.1016/j.biortech.2015.06.057
State	Published - 1 Oct 2015

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Anaerobic compost maturity
Anaerobic composting (AnC)
Bioelectrochemical devices
Dewatered sludge
Fuzzy comprehensive assessment (FCA)

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10.1016/j.biortech.2015.06.057

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title = "Bioelectrochemically-assisted anaerobic composting process enhancing compost maturity of dewatered sludge with synchronous electricity generation",

abstract = "Bioelectrochemically-assisted anaerobic composting process (AnCBE) with dewatered sludge as the anode fuel was constructed to accelerate composting of dewatered sludge, which could increase the quality of the compost and harvest electric energy in comparison with the traditional anaerobic composting (AnC). Results revealed that the AnCBE yielded a voltage of 0.60±0.02V, and total COD (TCOD) removal reached 19.8±0.2\% at the end of 35d. The maximum power density was 5.6W/m3. At the end of composting, organic matter content (OM) reduction rate increased to 19.5±0.2\% in AnCBE and to 12.9±0.1\% in AnC. The fuzzy comprehensive assessment (FCA) result indicated that the membership degree of class I of AnCBE compost (0.64) was higher than that of AnC compost (0.44). It was demonstrated that electrogenesis in the AnCBE could improve the sludge stabilization degree, accelerate anaerobic composting process and enhance composting maturity with bioelectricity generation.",

keywords = "Anaerobic compost maturity, Anaerobic composting (AnC), Bioelectrochemical devices, Dewatered sludge, Fuzzy comprehensive assessment (FCA)",

author = "Hang Yu and Junqiu Jiang and Qingliang Zhao and Kun Wang and Yunshu Zhang and Zhen Zheng and Xiaodi Hao",

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T1 - Bioelectrochemically-assisted anaerobic composting process enhancing compost maturity of dewatered sludge with synchronous electricity generation

AU - Yu, Hang

AU - Jiang, Junqiu

AU - Zhao, Qingliang

AU - Wang, Kun

AU - Zhang, Yunshu

AU - Zheng, Zhen

AU - Hao, Xiaodi

PY - 2015/10/1

Y1 - 2015/10/1

N2 - Bioelectrochemically-assisted anaerobic composting process (AnCBE) with dewatered sludge as the anode fuel was constructed to accelerate composting of dewatered sludge, which could increase the quality of the compost and harvest electric energy in comparison with the traditional anaerobic composting (AnC). Results revealed that the AnCBE yielded a voltage of 0.60±0.02V, and total COD (TCOD) removal reached 19.8±0.2% at the end of 35d. The maximum power density was 5.6W/m3. At the end of composting, organic matter content (OM) reduction rate increased to 19.5±0.2% in AnCBE and to 12.9±0.1% in AnC. The fuzzy comprehensive assessment (FCA) result indicated that the membership degree of class I of AnCBE compost (0.64) was higher than that of AnC compost (0.44). It was demonstrated that electrogenesis in the AnCBE could improve the sludge stabilization degree, accelerate anaerobic composting process and enhance composting maturity with bioelectricity generation.

AB - Bioelectrochemically-assisted anaerobic composting process (AnCBE) with dewatered sludge as the anode fuel was constructed to accelerate composting of dewatered sludge, which could increase the quality of the compost and harvest electric energy in comparison with the traditional anaerobic composting (AnC). Results revealed that the AnCBE yielded a voltage of 0.60±0.02V, and total COD (TCOD) removal reached 19.8±0.2% at the end of 35d. The maximum power density was 5.6W/m3. At the end of composting, organic matter content (OM) reduction rate increased to 19.5±0.2% in AnCBE and to 12.9±0.1% in AnC. The fuzzy comprehensive assessment (FCA) result indicated that the membership degree of class I of AnCBE compost (0.64) was higher than that of AnC compost (0.44). It was demonstrated that electrogenesis in the AnCBE could improve the sludge stabilization degree, accelerate anaerobic composting process and enhance composting maturity with bioelectricity generation.

KW - Anaerobic compost maturity

KW - Anaerobic composting (AnC)

KW - Bioelectrochemical devices

KW - Dewatered sludge

KW - Fuzzy comprehensive assessment (FCA)

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EP - 7

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Bioelectrochemically-assisted anaerobic composting process enhancing compost maturity of dewatered sludge with synchronous electricity generation

Abstract

UN SDGs

Keywords

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