Phase separation and microbial distribution in the hyperthermophilic-mesophilic-type temperature-phased anaerobic digestion (TPAD) of waste activated sludge (WAS)

Yu Qin; Atsushi Higashimori; Li Jie Wu; Toshimasa Hojo; Kengo Kubota; Yu You Li

doi:10.1016/j.biortech.2017.08.124

Phase separation and microbial distribution in the hyperthermophilic-mesophilic-type temperature-phased anaerobic digestion (TPAD) of waste activated sludge (WAS)

Yu Qin, Atsushi Higashimori, Li Jie Wu, Toshimasa Hojo, Kengo Kubota, Yu You Li

ENG - Civil and Environmental Engineering

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

26 Citations (Scopus)

Abstract

In order to investigate the phase separation and microbial distribution in the TPAD, the conventional thermophilic-mesophilic type (TM-TPAD) and the hyperthermophilic-mesophilic type (HM-TPAD) were operated with a single-stage mesophilic anaerobic digestion (MAD) as control. HM-TPAD accomplished the volatile solids destruction 14.5% higher than MAD. Calculating conversion efficiencies distinguished the separation of acidogenic and methanogenic phases in HM-TPAD, which was not found in TM-TPAD. The differences on microbial distributions also reflected the phase separation in HM-TPAD. The protein degraders, Coprothermobacter had higher abundance in the first stage than the second stage of HM-TPAD but it had similar abundance between the two stages of TM-TPAD. Also, the archaeal communities from the two stages of HM-TPAD shared the least similarity but those from the two stages of TM-TPAD were closely similar.

Original language	English
Pages (from-to)	401-410
Number of pages	10
Journal	Bioresource Technology
Volume	245
DOIs	https://doi.org/10.1016/j.biortech.2017.08.124
Publication status	Published - 2017

Keywords

Anaerobic digestion
Hyperthermophilic
Microbial community
Temperature phased
Waste activated sludge

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

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

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10.1016/j.biortech.2017.08.124

Cite this

Phase separation and microbial distribution in the hyperthermophilic-mesophilic-type temperature-phased anaerobic digestion (TPAD) of waste activated sludge (WAS). / Qin, Yu; Higashimori, Atsushi; Wu, Li Jie; Hojo, Toshimasa; Kubota, Kengo ; Li, Yu You.

In: Bioresource Technology, Vol. 245, 2017, p. 401-410.

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

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abstract = "In order to investigate the phase separation and microbial distribution in the TPAD, the conventional thermophilic-mesophilic type (TM-TPAD) and the hyperthermophilic-mesophilic type (HM-TPAD) were operated with a single-stage mesophilic anaerobic digestion (MAD) as control. HM-TPAD accomplished the volatile solids destruction 14.5% higher than MAD. Calculating conversion efficiencies distinguished the separation of acidogenic and methanogenic phases in HM-TPAD, which was not found in TM-TPAD. The differences on microbial distributions also reflected the phase separation in HM-TPAD. The protein degraders, Coprothermobacter had higher abundance in the first stage than the second stage of HM-TPAD but it had similar abundance between the two stages of TM-TPAD. Also, the archaeal communities from the two stages of HM-TPAD shared the least similarity but those from the two stages of TM-TPAD were closely similar.",

keywords = "Anaerobic digestion, Hyperthermophilic, Microbial community, Temperature phased, Waste activated sludge",

author = "Yu Qin and Atsushi Higashimori and Wu, {Li Jie} and Toshimasa Hojo and Kengo Kubota and Li, {Yu You}",

note = "Funding Information: This study was accomplished during the period when the first author was financially supported by the China Scholar Council (CSC, 201206230087 ). Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

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AU - Higashimori, Atsushi

AU - Wu, Li Jie

AU - Hojo, Toshimasa

AU - Kubota, Kengo

AU - Li, Yu You

N1 - Funding Information: This study was accomplished during the period when the first author was financially supported by the China Scholar Council (CSC, 201206230087 ). Publisher Copyright: © 2017 Elsevier Ltd

PY - 2017

Y1 - 2017

N2 - In order to investigate the phase separation and microbial distribution in the TPAD, the conventional thermophilic-mesophilic type (TM-TPAD) and the hyperthermophilic-mesophilic type (HM-TPAD) were operated with a single-stage mesophilic anaerobic digestion (MAD) as control. HM-TPAD accomplished the volatile solids destruction 14.5% higher than MAD. Calculating conversion efficiencies distinguished the separation of acidogenic and methanogenic phases in HM-TPAD, which was not found in TM-TPAD. The differences on microbial distributions also reflected the phase separation in HM-TPAD. The protein degraders, Coprothermobacter had higher abundance in the first stage than the second stage of HM-TPAD but it had similar abundance between the two stages of TM-TPAD. Also, the archaeal communities from the two stages of HM-TPAD shared the least similarity but those from the two stages of TM-TPAD were closely similar.

AB - In order to investigate the phase separation and microbial distribution in the TPAD, the conventional thermophilic-mesophilic type (TM-TPAD) and the hyperthermophilic-mesophilic type (HM-TPAD) were operated with a single-stage mesophilic anaerobic digestion (MAD) as control. HM-TPAD accomplished the volatile solids destruction 14.5% higher than MAD. Calculating conversion efficiencies distinguished the separation of acidogenic and methanogenic phases in HM-TPAD, which was not found in TM-TPAD. The differences on microbial distributions also reflected the phase separation in HM-TPAD. The protein degraders, Coprothermobacter had higher abundance in the first stage than the second stage of HM-TPAD but it had similar abundance between the two stages of TM-TPAD. Also, the archaeal communities from the two stages of HM-TPAD shared the least similarity but those from the two stages of TM-TPAD were closely similar.

KW - Anaerobic digestion

KW - Hyperthermophilic

KW - Microbial community

KW - Temperature phased

KW - Waste activated sludge

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Phase separation and microbial distribution in the hyperthermophilic-mesophilic-type temperature-phased anaerobic digestion (TPAD) of waste activated sludge (WAS)

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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