Multiple hydrolyses of rice straw by domesticated paddy soil microbes for methane production via liquid anaerobic digestion

Jingjing Wang; Leipeng Cao; Yuhuan Liu; Zhenghua Huang; Congmiao Li; Daishe Wu; Roger Ruan

doi:10.1016/j.biortech.2022.127184

Multiple hydrolyses of rice straw by domesticated paddy soil microbes for methane production via liquid anaerobic digestion

Jingjing Wang, Leipeng Cao, Yuhuan Liu, Zhenghua Huang, Congmiao Li, Daishe Wu, Roger Ruan

Bioproducts and Biosystems Engineering

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

10 Scopus citations

Abstract

The aim of this study was to investigate the hydrolysis of rice straw (RS) using domesticated paddy soil microbes (DPSMs) with swine wastewater (SW) as the nitrogen source and the multiple hydrolyses for CH₄ production via liquid anaerobic digestion (L-AD). Three hydrolyses of RS with a 45% inoculation ratio (IR) under the conditions of a carbon/nitrogen ratio (C/N ratio) of 40, temperature of 37 °C, inoculum/substrate ratio (I/S ratio) of 2:1, and immersion depth of 6.0 cm were optimal, attaining maximum volatile fatty acids (VFAs) after five days, possibly owing to the synergistic effect of aerobic microbes (Firmicutes and Actinomycetes) and anaerobic microbes (Bacteroidetes and Acidobacteria). After three hydrolyses, the degradation rates of hemicellulose, cellulose, and lignin in RS were 88.45%, 83.19% and 70.09%, respectively. The accumulative CH₄ production reached 462.11 mL/g VS after three hydrolyses, and its curve fitted well with the modified Gompertz model (R² > 0.984).

Original language	English (US)
Article number	127184
Journal	Bioresource Technology
Volume	354
DOIs	https://doi.org/10.1016/j.biortech.2022.127184
State	Published - Jun 2022

Bibliographical note

Funding Information:
This work was supported by National Natural Science Foundation of China ( 21878139 ); Daily Postdoctoral Support of Jiangxi Province, China (2020RC08).

Publisher Copyright:
© 2022 Elsevier Ltd

Keywords

Liquid anaerobic digestion
Methane
Multiple hydrolyses
Paddy soil microbe
Rice straw

PubMed: MeSH publication types

Journal Article

UN SDGs

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

Publisher link

10.1016/j.biortech.2022.127184

Find It

Find It at U of M Libraries

Cite this

@article{e803d6969ed841d49771e2b2c70ae521,

title = "Multiple hydrolyses of rice straw by domesticated paddy soil microbes for methane production via liquid anaerobic digestion",

abstract = "The aim of this study was to investigate the hydrolysis of rice straw (RS) using domesticated paddy soil microbes (DPSMs) with swine wastewater (SW) as the nitrogen source and the multiple hydrolyses for CH4 production via liquid anaerobic digestion (L-AD). Three hydrolyses of RS with a 45% inoculation ratio (IR) under the conditions of a carbon/nitrogen ratio (C/N ratio) of 40, temperature of 37 °C, inoculum/substrate ratio (I/S ratio) of 2:1, and immersion depth of 6.0 cm were optimal, attaining maximum volatile fatty acids (VFAs) after five days, possibly owing to the synergistic effect of aerobic microbes (Firmicutes and Actinomycetes) and anaerobic microbes (Bacteroidetes and Acidobacteria). After three hydrolyses, the degradation rates of hemicellulose, cellulose, and lignin in RS were 88.45%, 83.19% and 70.09%, respectively. The accumulative CH4 production reached 462.11 mL/g VS after three hydrolyses, and its curve fitted well with the modified Gompertz model (R2 > 0.984).",

keywords = "Liquid anaerobic digestion, Methane, Multiple hydrolyses, Paddy soil microbe, Rice straw",

author = "Jingjing Wang and Leipeng Cao and Yuhuan Liu and Zhenghua Huang and Congmiao Li and Daishe Wu and Roger Ruan",

note = "Funding Information: This work was supported by National Natural Science Foundation of China ( 21878139 ); Daily Postdoctoral Support of Jiangxi Province, China (2020RC08). Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = jun,

doi = "10.1016/j.biortech.2022.127184",

language = "English (US)",

volume = "354",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Multiple hydrolyses of rice straw by domesticated paddy soil microbes for methane production via liquid anaerobic digestion

AU - Wang, Jingjing

AU - Cao, Leipeng

AU - Liu, Yuhuan

AU - Huang, Zhenghua

AU - Li, Congmiao

AU - Wu, Daishe

AU - Ruan, Roger

N1 - Funding Information: This work was supported by National Natural Science Foundation of China ( 21878139 ); Daily Postdoctoral Support of Jiangxi Province, China (2020RC08). Publisher Copyright: © 2022 Elsevier Ltd

PY - 2022/6

Y1 - 2022/6

N2 - The aim of this study was to investigate the hydrolysis of rice straw (RS) using domesticated paddy soil microbes (DPSMs) with swine wastewater (SW) as the nitrogen source and the multiple hydrolyses for CH4 production via liquid anaerobic digestion (L-AD). Three hydrolyses of RS with a 45% inoculation ratio (IR) under the conditions of a carbon/nitrogen ratio (C/N ratio) of 40, temperature of 37 °C, inoculum/substrate ratio (I/S ratio) of 2:1, and immersion depth of 6.0 cm were optimal, attaining maximum volatile fatty acids (VFAs) after five days, possibly owing to the synergistic effect of aerobic microbes (Firmicutes and Actinomycetes) and anaerobic microbes (Bacteroidetes and Acidobacteria). After three hydrolyses, the degradation rates of hemicellulose, cellulose, and lignin in RS were 88.45%, 83.19% and 70.09%, respectively. The accumulative CH4 production reached 462.11 mL/g VS after three hydrolyses, and its curve fitted well with the modified Gompertz model (R2 > 0.984).

AB - The aim of this study was to investigate the hydrolysis of rice straw (RS) using domesticated paddy soil microbes (DPSMs) with swine wastewater (SW) as the nitrogen source and the multiple hydrolyses for CH4 production via liquid anaerobic digestion (L-AD). Three hydrolyses of RS with a 45% inoculation ratio (IR) under the conditions of a carbon/nitrogen ratio (C/N ratio) of 40, temperature of 37 °C, inoculum/substrate ratio (I/S ratio) of 2:1, and immersion depth of 6.0 cm were optimal, attaining maximum volatile fatty acids (VFAs) after five days, possibly owing to the synergistic effect of aerobic microbes (Firmicutes and Actinomycetes) and anaerobic microbes (Bacteroidetes and Acidobacteria). After three hydrolyses, the degradation rates of hemicellulose, cellulose, and lignin in RS were 88.45%, 83.19% and 70.09%, respectively. The accumulative CH4 production reached 462.11 mL/g VS after three hydrolyses, and its curve fitted well with the modified Gompertz model (R2 > 0.984).

KW - Liquid anaerobic digestion

KW - Methane

KW - Multiple hydrolyses

KW - Paddy soil microbe

KW - Rice straw

UR - http://www.scopus.com/inward/record.url?scp=85129479917&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85129479917&partnerID=8YFLogxK

U2 - 10.1016/j.biortech.2022.127184

DO - 10.1016/j.biortech.2022.127184

M3 - Article

C2 - 35447327

AN - SCOPUS:85129479917

SN - 0960-8524

VL - 354

JO - Bioresource Technology

JF - Bioresource Technology

M1 - 127184

ER -

Multiple hydrolyses of rice straw by domesticated paddy soil microbes for methane production via liquid anaerobic digestion

Abstract

Bibliographical note

Keywords

PubMed: MeSH publication types

UN SDGs

Publisher link

Find It

Other files and links

Fingerprint

Cite this