Enhancement of methane production by electrohydrolysis pretreatment for anaerobic digestion of OFMSW

Yagmur Kabakci; Sadiye Kosar; Ozgur Dogan; Fehmi Gorkem Uctug; Osman Atilla Arikan

doi:10.1016/j.envres.2023.117534

Enhancement of methane production by electrohydrolysis pretreatment for anaerobic digestion of OFMSW

Yagmur Kabakci^*
, Sadiye Kosar
, Ozgur Dogan
, Fehmi Gorkem Uctug
, Osman Atilla Arikan

^*Corresponding author for this work

Department of Environmental Engineering

Istanbul Technical University
Scientific and Technological Research Council of Turkey
Aarhus University
Izmir Ekonomi University

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

6 Citations (Scopus)

Abstract

Hydrolysis is the most critical rate-limiting step in the anaerobic digestion (AD) process for most types of substrates. The organic fraction of municipal solid waste (OFMSW) is a rich source for the AD process because of its high degradability. In this study, electrohydrolysis pretreatment was investigated for the OFMSW to overcome the rate-limiting step of hydrolysis. Electrohydrolysis pretreatment was applied to the OFMSW for 30 and 60 min in a custom-made reactor. In the untreated, 30-min. treated, and 60-min. treated OFMSW average methane production was observed as 225 ± 2 mL CH₄/g VS_added, 231 ± 4 mL CH₄/g VS_added, and 248 ± 7 mL CH₄/g VS_added, respectively. By increasing the treatment time, the lag phase, during which hydrolysis occurs, was reduced by 40–43%. 3–10% more methane was produced by applying electrohydrolysis pretreatment. These results suggest that electrohydrolysis pretreatment is a promising method to improve the efficiency of AD for the OFMSW by reducing the time required for hydrolysis and increasing methane production. More investigation is required to better comprehend the effects of electrohydrolysis on the OFMSW.

Original language	English
Article number	117534
Journal	Environmental Research
Volume	240
DOIs	https://doi.org/10.1016/j.envres.2023.117534
Publication status	Published - 1 Jan 2024

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Inc.

Funding

The authors would like to express their appreciation for the research support given to the Circular Economy and Resource Efficiency Research Group by the Scientific and Technological Research Institution of Turkey (TUBITAK). The Istanbul Technical University, Turkey, Scientific Research Projects: Yagmur Kabakci [Project No.: MDK-2019-42183], for their support, is gratefully acknowledged by the authors. The authors would like to thank the Duzce Solid Waste Association for their support of the project. The authors would like to express their appreciation for the research support given to the Circular Economy and Resource Efficiency Research Group by the Scientific and Technological Research Institution of Turkey (TUBITAK). The Istanbul Technical University , Turkey, Scientific Research Projects: Yagmur Kabakci [Project No.: MDK-2019-42183 ], for their support, is gratefully acknowledged by the authors. The authors would like to thank the Duzce Solid Waste Association for their support of the project.

Funders	Funder number
Duzce Solid Waste Association
Scientific and Technological Research Institution of Turkey
Yagmur Kabakci	MDK-2019-42183
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu
Istanbul Teknik Üniversitesi

UN SDGs

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

SDG 11 Sustainable Cities and Communities
SDG 12 Responsible Consumption and Production

Keywords

Anaerobic digestion
Biochemical methane potential (BMP)
Electrohydrolysis
Organic fraction of municipal solid waste (OFMSW)
Pretreatment

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10.1016/j.envres.2023.117534

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title = "Enhancement of methane production by electrohydrolysis pretreatment for anaerobic digestion of OFMSW",

abstract = "Hydrolysis is the most critical rate-limiting step in the anaerobic digestion (AD) process for most types of substrates. The organic fraction of municipal solid waste (OFMSW) is a rich source for the AD process because of its high degradability. In this study, electrohydrolysis pretreatment was investigated for the OFMSW to overcome the rate-limiting step of hydrolysis. Electrohydrolysis pretreatment was applied to the OFMSW for 30 and 60 min in a custom-made reactor. In the untreated, 30-min. treated, and 60-min. treated OFMSW average methane production was observed as 225 ± 2 mL CH4/g VSadded, 231 ± 4 mL CH4/g VSadded, and 248 ± 7 mL CH4/g VSadded, respectively. By increasing the treatment time, the lag phase, during which hydrolysis occurs, was reduced by 40–43\%. 3–10\% more methane was produced by applying electrohydrolysis pretreatment. These results suggest that electrohydrolysis pretreatment is a promising method to improve the efficiency of AD for the OFMSW by reducing the time required for hydrolysis and increasing methane production. More investigation is required to better comprehend the effects of electrohydrolysis on the OFMSW.",

keywords = "Anaerobic digestion, Biochemical methane potential (BMP), Electrohydrolysis, Organic fraction of municipal solid waste (OFMSW), Pretreatment",

author = "Yagmur Kabakci and Sadiye Kosar and Ozgur Dogan and Uctug, \{Fehmi Gorkem\} and Arikan, \{Osman Atilla\}",

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year = "2024",

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doi = "10.1016/j.envres.2023.117534",

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AU - Kabakci, Yagmur

AU - Kosar, Sadiye

AU - Dogan, Ozgur

AU - Uctug, Fehmi Gorkem

AU - Arikan, Osman Atilla

PY - 2024/1/1

Y1 - 2024/1/1

N2 - Hydrolysis is the most critical rate-limiting step in the anaerobic digestion (AD) process for most types of substrates. The organic fraction of municipal solid waste (OFMSW) is a rich source for the AD process because of its high degradability. In this study, electrohydrolysis pretreatment was investigated for the OFMSW to overcome the rate-limiting step of hydrolysis. Electrohydrolysis pretreatment was applied to the OFMSW for 30 and 60 min in a custom-made reactor. In the untreated, 30-min. treated, and 60-min. treated OFMSW average methane production was observed as 225 ± 2 mL CH4/g VSadded, 231 ± 4 mL CH4/g VSadded, and 248 ± 7 mL CH4/g VSadded, respectively. By increasing the treatment time, the lag phase, during which hydrolysis occurs, was reduced by 40–43%. 3–10% more methane was produced by applying electrohydrolysis pretreatment. These results suggest that electrohydrolysis pretreatment is a promising method to improve the efficiency of AD for the OFMSW by reducing the time required for hydrolysis and increasing methane production. More investigation is required to better comprehend the effects of electrohydrolysis on the OFMSW.

AB - Hydrolysis is the most critical rate-limiting step in the anaerobic digestion (AD) process for most types of substrates. The organic fraction of municipal solid waste (OFMSW) is a rich source for the AD process because of its high degradability. In this study, electrohydrolysis pretreatment was investigated for the OFMSW to overcome the rate-limiting step of hydrolysis. Electrohydrolysis pretreatment was applied to the OFMSW for 30 and 60 min in a custom-made reactor. In the untreated, 30-min. treated, and 60-min. treated OFMSW average methane production was observed as 225 ± 2 mL CH4/g VSadded, 231 ± 4 mL CH4/g VSadded, and 248 ± 7 mL CH4/g VSadded, respectively. By increasing the treatment time, the lag phase, during which hydrolysis occurs, was reduced by 40–43%. 3–10% more methane was produced by applying electrohydrolysis pretreatment. These results suggest that electrohydrolysis pretreatment is a promising method to improve the efficiency of AD for the OFMSW by reducing the time required for hydrolysis and increasing methane production. More investigation is required to better comprehend the effects of electrohydrolysis on the OFMSW.

KW - Anaerobic digestion

KW - Biochemical methane potential (BMP)

KW - Electrohydrolysis

KW - Organic fraction of municipal solid waste (OFMSW)

KW - Pretreatment

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JF - Environmental Research

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ER -

Enhancement of methane production by electrohydrolysis pretreatment for anaerobic digestion of OFMSW

Abstract

Bibliographical note

Funding

UN SDGs

Keywords

Access to Document

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