Establishing practical strategies to run high loading corn stover anaerobic digestion: Methane production performance and microbial responses

Haipeng Wang; Jiawei Li; Yiquan Zhao; Congfeng Xu; Keqiang Zhang; Jiajia Li; Lei Yan; Ji Dong Gu; Dan Wei; Weidong Wang

doi:10.1016/j.biortech.2020.123364

Establishing practical strategies to run high loading corn stover anaerobic digestion: Methane production performance and microbial responses

Haipeng Wang, Jiawei Li, Yiquan Zhao, Congfeng Xu, Keqiang Zhang, Jiajia Li, Lei Yan, Ji Dong Gu, Dan Wei, Weidong Wang^*

^*Corresponding author for this work

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

24 Scopus citations

Abstract

It is significant to understand corn stover (CS) in anaerobic digestion (AD) under high organic loadings. A semi-continuous mesophilic (37 ± 1 °C) CS AD was conducted in this study with increasing loadings. The initial total solids (TS) gradually increased with 1% gradient at every 10 days from 8% to 15% until the system was acidified. Adding different ratios of cattle manure (CM) (20%, 30% and 40% (v/v)) to rescue this system back to a stable operation was adopted. The diversity of bacteria and archaea was analyzed by 16S rRNA gene sequencing technology. The results showed that when loading TS content was increased to 15%, AD system was acidized with pH value of 5.13. 30% of CM was the optimal ratio to recover biogas production. High abundance (31.07%) of Bathyarchaeota was first found in AD system. Acidification of high loading CS AD can be highly correlating with bacterial community, specially Clostridium and Caproiciproducens.

Original language	English
Article number	123364
Journal	Bioresource Technology
Volume	310
DOIs	https://doi.org/10.1016/j.biortech.2020.123364
State	Published - Aug 2020
Externally published	Yes

Keywords

Acidification
Anaerobic digestion
Corn stover
Microbial diversity
Organic loading

UN SDGs

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

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10.1016/j.biortech.2020.123364

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title = "Establishing practical strategies to run high loading corn stover anaerobic digestion: Methane production performance and microbial responses",

abstract = "It is significant to understand corn stover (CS) in anaerobic digestion (AD) under high organic loadings. A semi-continuous mesophilic (37 ± 1 °C) CS AD was conducted in this study with increasing loadings. The initial total solids (TS) gradually increased with 1% gradient at every 10 days from 8% to 15% until the system was acidified. Adding different ratios of cattle manure (CM) (20%, 30% and 40% (v/v)) to rescue this system back to a stable operation was adopted. The diversity of bacteria and archaea was analyzed by 16S rRNA gene sequencing technology. The results showed that when loading TS content was increased to 15%, AD system was acidized with pH value of 5.13. 30% of CM was the optimal ratio to recover biogas production. High abundance (31.07%) of Bathyarchaeota was first found in AD system. Acidification of high loading CS AD can be highly correlating with bacterial community, specially Clostridium and Caproiciproducens.",

keywords = "Acidification, Anaerobic digestion, Corn stover, Microbial diversity, Organic loading",

author = "Haipeng Wang and Jiawei Li and Yiquan Zhao and Congfeng Xu and Keqiang Zhang and Jiajia Li and Lei Yan and Gu, {Ji Dong} and Dan Wei and Weidong Wang",

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

year = "2020",

month = aug,

doi = "10.1016/j.biortech.2020.123364",

language = "英语",

volume = "310",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Establishing practical strategies to run high loading corn stover anaerobic digestion

T2 - Methane production performance and microbial responses

AU - Wang, Haipeng

AU - Li, Jiawei

AU - Zhao, Yiquan

AU - Xu, Congfeng

AU - Zhang, Keqiang

AU - Li, Jiajia

AU - Yan, Lei

AU - Gu, Ji Dong

AU - Wei, Dan

AU - Wang, Weidong

PY - 2020/8

Y1 - 2020/8

N2 - It is significant to understand corn stover (CS) in anaerobic digestion (AD) under high organic loadings. A semi-continuous mesophilic (37 ± 1 °C) CS AD was conducted in this study with increasing loadings. The initial total solids (TS) gradually increased with 1% gradient at every 10 days from 8% to 15% until the system was acidified. Adding different ratios of cattle manure (CM) (20%, 30% and 40% (v/v)) to rescue this system back to a stable operation was adopted. The diversity of bacteria and archaea was analyzed by 16S rRNA gene sequencing technology. The results showed that when loading TS content was increased to 15%, AD system was acidized with pH value of 5.13. 30% of CM was the optimal ratio to recover biogas production. High abundance (31.07%) of Bathyarchaeota was first found in AD system. Acidification of high loading CS AD can be highly correlating with bacterial community, specially Clostridium and Caproiciproducens.

AB - It is significant to understand corn stover (CS) in anaerobic digestion (AD) under high organic loadings. A semi-continuous mesophilic (37 ± 1 °C) CS AD was conducted in this study with increasing loadings. The initial total solids (TS) gradually increased with 1% gradient at every 10 days from 8% to 15% until the system was acidified. Adding different ratios of cattle manure (CM) (20%, 30% and 40% (v/v)) to rescue this system back to a stable operation was adopted. The diversity of bacteria and archaea was analyzed by 16S rRNA gene sequencing technology. The results showed that when loading TS content was increased to 15%, AD system was acidized with pH value of 5.13. 30% of CM was the optimal ratio to recover biogas production. High abundance (31.07%) of Bathyarchaeota was first found in AD system. Acidification of high loading CS AD can be highly correlating with bacterial community, specially Clostridium and Caproiciproducens.

KW - Acidification

KW - Anaerobic digestion

KW - Corn stover

KW - Microbial diversity

KW - Organic loading

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U2 - 10.1016/j.biortech.2020.123364

DO - 10.1016/j.biortech.2020.123364

M3 - 文章

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AN - SCOPUS:85083484353

SN - 0960-8524

VL - 310

JO - Bioresource Technology

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ER -

Establishing practical strategies to run high loading corn stover anaerobic digestion: Methane production performance and microbial responses

Abstract

Keywords

UN SDGs

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