Stimulation of methane yield rate from food waste by aerobic pre-treatment

Chuanfu Wu, Miao Yu, Qiqi Huang, Hongzhi Ma, Ming Gao, Qunhui Wang, Kenji Sakai

研究成果: ジャーナルへの寄稿記事

6 引用 (Scopus)

抄録

Aerobic pre-treatment (AP) was applied to enhance methane yield from food waste through anaerobic digestion. Different AP durations (i.e. 2, 5 and 8 days) prior to anaerobic digestion were tested. The results indicated that AP of food waste led to no significant differences (p > 0.05) in methane yield potential (ca. 418 mL/g-VS). However, a suitable AP duration (5 days) increased methane yield rates (ca. 18 mL/d/g-VS; 22.0% higher than the control) by anticipating methane generation and shortening the methanogenic phase via volatile fatty acid reduction and pH increase. Although AP induced chemical oxygen demand loss to some extent (i.e. by 2.6%–9.9%) in the AP stage via aerobic degradation, the methane yield potential could be recovered by enhancing organic matter hydrolysis. Therefore, maximisation of hydrolysis should be used as a basis for determining a suitable AP duration for various types of organic matter.

元の言語英語
ページ(範囲)279-287
ページ数9
ジャーナルBioresource Technology
261
DOI
出版物ステータス出版済み - 8 1 2018

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Methane
methane
food
Anaerobic digestion
Biological materials
hydrolysis
Hydrolysis
Volatile fatty acids
organic matter
Volatile Fatty Acids
Chemical oxygen demand
chemical oxygen demand
fatty acid
rate
Degradation
degradation
anaerobic digestion

All Science Journal Classification (ASJC) codes

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

これを引用

Stimulation of methane yield rate from food waste by aerobic pre-treatment. / Wu, Chuanfu; Yu, Miao; Huang, Qiqi; Ma, Hongzhi; Gao, Ming; Wang, Qunhui; Sakai, Kenji.

:: Bioresource Technology, 巻 261, 01.08.2018, p. 279-287.

研究成果: ジャーナルへの寄稿記事

Wu, Chuanfu ; Yu, Miao ; Huang, Qiqi ; Ma, Hongzhi ; Gao, Ming ; Wang, Qunhui ; Sakai, Kenji. / Stimulation of methane yield rate from food waste by aerobic pre-treatment. :: Bioresource Technology. 2018 ; 巻 261. pp. 279-287.
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abstract = "Aerobic pre-treatment (AP) was applied to enhance methane yield from food waste through anaerobic digestion. Different AP durations (i.e. 2, 5 and 8 days) prior to anaerobic digestion were tested. The results indicated that AP of food waste led to no significant differences (p > 0.05) in methane yield potential (ca. 418 mL/g-VS). However, a suitable AP duration (5 days) increased methane yield rates (ca. 18 mL/d/g-VS; 22.0{\%} higher than the control) by anticipating methane generation and shortening the methanogenic phase via volatile fatty acid reduction and pH increase. Although AP induced chemical oxygen demand loss to some extent (i.e. by 2.6{\%}–9.9{\%}) in the AP stage via aerobic degradation, the methane yield potential could be recovered by enhancing organic matter hydrolysis. Therefore, maximisation of hydrolysis should be used as a basis for determining a suitable AP duration for various types of organic matter.",
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AU - Wang, Qunhui

AU - Sakai, Kenji

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N2 - Aerobic pre-treatment (AP) was applied to enhance methane yield from food waste through anaerobic digestion. Different AP durations (i.e. 2, 5 and 8 days) prior to anaerobic digestion were tested. The results indicated that AP of food waste led to no significant differences (p > 0.05) in methane yield potential (ca. 418 mL/g-VS). However, a suitable AP duration (5 days) increased methane yield rates (ca. 18 mL/d/g-VS; 22.0% higher than the control) by anticipating methane generation and shortening the methanogenic phase via volatile fatty acid reduction and pH increase. Although AP induced chemical oxygen demand loss to some extent (i.e. by 2.6%–9.9%) in the AP stage via aerobic degradation, the methane yield potential could be recovered by enhancing organic matter hydrolysis. Therefore, maximisation of hydrolysis should be used as a basis for determining a suitable AP duration for various types of organic matter.

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