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

被引：248

作者：

Chu, Chun-Feng ^{[1
]}

Li, Yu-You ^{[2
]}

Xu, Kai-Qin ^{[3
,4
]}

Ebie, Yoshitaka ^{[3
]}

Inamori, Yuhei ^{[5
]}

Kong, Hai-Nan ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China

[2] Tohoku Univ, Dept Civil & Environm Engn, Sendai, Miyagi 9808579, Japan

[3] Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan

[4] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China

[5] Fukushima Univ, Fac Symbiot Syst Sci, Fukushima 9601296, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 18期

关键词：

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

D O I：

10.1016/j.ijhydene.2008.06.060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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/m(3)/d or 64.4 kg-CODCr/m(3)/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/m(3)/d or 16.3 kg-CODCr/m(3)/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 H-2/g VS added and 464 ml CH4/g VS added, respectively. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：4739 / 4746

页数：8

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