Conversion of organic solid waste to hydrogen and methane by two-stage fermentation system with reuse of methane fermenter effluent as diluting water in hydrogen fermentation

Kyung Won Jung; Chungman Moon; Si Kyung Cho; Sang Hyoun Kim; Hang Sik Shin; Dong Hoon Kim

doi:10.1016/j.biortech.2013.04.041

Conversion of organic solid waste to hydrogen and methane by two-stage fermentation system with reuse of methane fermenter effluent as diluting water in hydrogen fermentation

Kyung Won Jung, Chungman Moon, Si Kyung Cho, Sang Hyoun Kim, Hang Sik Shin, Dong Hoon Kim

Department of Civil and Environmental Engineering

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

31 Citations (Scopus)

Abstract

In this study, a two-stage system converting organic solid waste (food waste+sewage sludge) to H₂ and CH₄ was operated. In the first stage of dark fermentative hydrogen production (DFHP), a recently proposed method that does not require external inoculum, was applied. In the second stage, anaerobic sequencing batch reactor (ASBR) and an up-flow anaerobic sludge blanket reactor (UASBr) were followed to treat H₂ fermenter effluent. (H₂+CH₄-ASBR) system showed better performance in terms of total biogas conversion (78.6%), while higher biogas production rate (2.03L H₂/L_system/d, 1.96L CH₄/L_system/d) was achieved in (H₂+CH₄-UASBr) system. To reduce the alkali addition requirement in DFHP process, CH₄ fermenter effluent was tested as a diluting water. Both the ASBR and UASBr effluent was effective to keep the pH above 6 without CH₄ production. In case of using ASBR effluent, H₂ production dropped by 15%, but alkali addition requirement was reduced by 50%.

Original language	English
Pages (from-to)	120-127
Number of pages	8
Journal	Bioresource technology
Volume	139
DOIs	https://doi.org/10.1016/j.biortech.2013.04.041
Publication status	Published - 2013 Jul

Bibliographical note

Funding Information:
2. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (MEST) (NRF-2012-M1A2A2026587).

Funding Information:
1. This work was supported by the New & Renewable Energy Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP: 20113030100030 ) Grant funded by the Korea government Ministry of Knowledge Economy .

All Science Journal Classification (ASJC) codes

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.2013.04.041

Cite this

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title = "Conversion of organic solid waste to hydrogen and methane by two-stage fermentation system with reuse of methane fermenter effluent as diluting water in hydrogen fermentation",

abstract = "In this study, a two-stage system converting organic solid waste (food waste+sewage sludge) to H2 and CH4 was operated. In the first stage of dark fermentative hydrogen production (DFHP), a recently proposed method that does not require external inoculum, was applied. In the second stage, anaerobic sequencing batch reactor (ASBR) and an up-flow anaerobic sludge blanket reactor (UASBr) were followed to treat H2 fermenter effluent. (H2+CH4-ASBR) system showed better performance in terms of total biogas conversion (78.6%), while higher biogas production rate (2.03L H2/Lsystem/d, 1.96L CH4/Lsystem/d) was achieved in (H2+CH4-UASBr) system. To reduce the alkali addition requirement in DFHP process, CH4 fermenter effluent was tested as a diluting water. Both the ASBR and UASBr effluent was effective to keep the pH above 6 without CH4 production. In case of using ASBR effluent, H2 production dropped by 15%, but alkali addition requirement was reduced by 50%.",

author = "Jung, {Kyung Won} and Chungman Moon and Cho, {Si Kyung} and Kim, {Sang Hyoun} and Shin, {Hang Sik} and Kim, {Dong Hoon}",

note = "Funding Information: 2. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (MEST) (NRF-2012-M1A2A2026587). Funding Information: 1. This work was supported by the New & Renewable Energy Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP: 20113030100030 ) Grant funded by the Korea government Ministry of Knowledge Economy . ",

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AU - Kim, Sang Hyoun

AU - Shin, Hang Sik

AU - Kim, Dong Hoon

N1 - Funding Information: 2. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (MEST) (NRF-2012-M1A2A2026587). Funding Information: 1. This work was supported by the New & Renewable Energy Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP: 20113030100030 ) Grant funded by the Korea government Ministry of Knowledge Economy .

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N2 - In this study, a two-stage system converting organic solid waste (food waste+sewage sludge) to H2 and CH4 was operated. In the first stage of dark fermentative hydrogen production (DFHP), a recently proposed method that does not require external inoculum, was applied. In the second stage, anaerobic sequencing batch reactor (ASBR) and an up-flow anaerobic sludge blanket reactor (UASBr) were followed to treat H2 fermenter effluent. (H2+CH4-ASBR) system showed better performance in terms of total biogas conversion (78.6%), while higher biogas production rate (2.03L H2/Lsystem/d, 1.96L CH4/Lsystem/d) was achieved in (H2+CH4-UASBr) system. To reduce the alkali addition requirement in DFHP process, CH4 fermenter effluent was tested as a diluting water. Both the ASBR and UASBr effluent was effective to keep the pH above 6 without CH4 production. In case of using ASBR effluent, H2 production dropped by 15%, but alkali addition requirement was reduced by 50%.

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Conversion of organic solid waste to hydrogen and methane by two-stage fermentation system with reuse of methane fermenter effluent as diluting water in hydrogen fermentation

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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