A pH- and temperature-phased two-stage process for hydrogen and methane production from food waste

Chun Feng Chu; Yu You Li; Kai Qin Xu; Yoshitaka Ebie; Yuhei Inamori; Hai Nan Kong

doi:10.1016/j.ijhydene.2008.06.060

A pH- and temperature-phased two-stage process for hydrogen and methane production from food waste

Chun Feng Chu, Yu You Li, Kai Qin Xu, Yoshitaka Ebie, Yuhei Inamori, Hai Nan Kong

ENG - Civil and Environmental Engineering

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

255 Citations (Scopus)

Abstract

A pH-phased two-stage fermentation process combined thermophilic hydrogen production and mesophilic methane production with recirculation of the digested sludge was suggested in this study and its treatment performance was demonstrated by a continuous experiment treating organic fraction of municipal solid wastes (OFMSW). A thermophilic hydrogen production reactor was operated at a hydraulic retention time (HRT) of 1.3 days, corresponding to a loading rate of 38.4 kg-VS/m³/d or 64.4 kg-COD_Cr/m³/d. The short HRT and low pH applied here were enough to separate hydrogen production from methanogenesis. The mixed slurry with a high concentration of organic acids was then converted into CH₄ by the mesophilic methane production reactor at a short HRT of 5.0 days, corresponding to a loading rate of 6.6 kg-VS/m³/d or 16.3 kg-COD_Cr/m³/d. The experiment was continued for over 150 days, and a stable performance for the simultaneous hydrogen and methane production was obtained. The yields of hydrogen and methane in this study were 205 ml H₂/g VS added and 464 ml CH₄/g VS added, respectively.

Original language	English
Pages (from-to)	4739-4746
Number of pages	8
Journal	International Journal of Hydrogen Energy
Volume	33
Issue number	18
DOIs	https://doi.org/10.1016/j.ijhydene.2008.06.060
Publication status	Published - 2008 Sept 1

Keywords

Bio-hydrogen
Food waste
Mesophilic methanogenesis
Thermophilic hydrogenesis
pH-phased two-stage process

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

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

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10.1016/j.ijhydene.2008.06.060

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abstract = "A pH-phased two-stage fermentation process combined thermophilic hydrogen production and mesophilic methane production with recirculation of the digested sludge was suggested in this study and its treatment performance was demonstrated by a continuous experiment treating organic fraction of municipal solid wastes (OFMSW). A thermophilic hydrogen production reactor was operated at a hydraulic retention time (HRT) of 1.3 days, corresponding to a loading rate of 38.4 kg-VS/m3/d or 64.4 kg-CODCr/m3/d. The short HRT and low pH applied here were enough to separate hydrogen production from methanogenesis. The mixed slurry with a high concentration of organic acids was then converted into CH4 by the mesophilic methane production reactor at a short HRT of 5.0 days, corresponding to a loading rate of 6.6 kg-VS/m3/d or 16.3 kg-CODCr/m3/d. The experiment was continued for over 150 days, and a stable performance for the simultaneous hydrogen and methane production was obtained. The yields of hydrogen and methane in this study were 205 ml H2/g VS added and 464 ml CH4/g VS added, respectively.",

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T1 - A pH- and temperature-phased two-stage process for hydrogen and methane production from food waste

AU - Chu, Chun Feng

AU - Li, Yu You

AU - Xu, Kai Qin

AU - Ebie, Yoshitaka

AU - Inamori, Yuhei

AU - Kong, Hai Nan

PY - 2008/9/1

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N2 - A pH-phased two-stage fermentation process combined thermophilic hydrogen production and mesophilic methane production with recirculation of the digested sludge was suggested in this study and its treatment performance was demonstrated by a continuous experiment treating organic fraction of municipal solid wastes (OFMSW). A thermophilic hydrogen production reactor was operated at a hydraulic retention time (HRT) of 1.3 days, corresponding to a loading rate of 38.4 kg-VS/m3/d or 64.4 kg-CODCr/m3/d. The short HRT and low pH applied here were enough to separate hydrogen production from methanogenesis. The mixed slurry with a high concentration of organic acids was then converted into CH4 by the mesophilic methane production reactor at a short HRT of 5.0 days, corresponding to a loading rate of 6.6 kg-VS/m3/d or 16.3 kg-CODCr/m3/d. The experiment was continued for over 150 days, and a stable performance for the simultaneous hydrogen and methane production was obtained. The yields of hydrogen and methane in this study were 205 ml H2/g VS added and 464 ml CH4/g VS added, respectively.

AB - A pH-phased two-stage fermentation process combined thermophilic hydrogen production and mesophilic methane production with recirculation of the digested sludge was suggested in this study and its treatment performance was demonstrated by a continuous experiment treating organic fraction of municipal solid wastes (OFMSW). A thermophilic hydrogen production reactor was operated at a hydraulic retention time (HRT) of 1.3 days, corresponding to a loading rate of 38.4 kg-VS/m3/d or 64.4 kg-CODCr/m3/d. The short HRT and low pH applied here were enough to separate hydrogen production from methanogenesis. The mixed slurry with a high concentration of organic acids was then converted into CH4 by the mesophilic methane production reactor at a short HRT of 5.0 days, corresponding to a loading rate of 6.6 kg-VS/m3/d or 16.3 kg-CODCr/m3/d. The experiment was continued for over 150 days, and a stable performance for the simultaneous hydrogen and methane production was obtained. The yields of hydrogen and methane in this study were 205 ml H2/g VS added and 464 ml CH4/g VS added, respectively.

KW - Bio-hydrogen

KW - Food waste

KW - Mesophilic methanogenesis

KW - Thermophilic hydrogenesis

KW - pH-phased two-stage process

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ER -

A pH- and temperature-phased two-stage process for hydrogen and methane production from food waste

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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