Sewage sludge addition to food waste synergistically enhances hydrogen fermentation performance

Dong Hoon Kim; Sang Hyou Kim; Hyun Woo Kim; Mi Sun Kim; Hang Sik Shin

doi:10.1016/j.biortech.2011.04.089

Sewage sludge addition to food waste synergistically enhances hydrogen fermentation performance

Dong Hoon Kim, Sang Hyou Kim, Hyun Woo Kim, Mi Sun Kim, Hang Sik Shin

Department of Civil and Environmental Engineering

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

102 Citations (Scopus)

Abstract

The effect of sewage sludge (SWS) addition on the H ₂ fermentation of food waste (FW) was investigated. It was found that a slight addition of SWS (10:1=FW:SWS on a COD basis) significantly enhanced the H ₂ fermentation performance, not only increasing the total amount of H ₂ produced but accelerating the whole reaction, shortening the lag period, and increasing the H ₂ production rate. Substrate degradation and microbial germination were also facilitated by SWS addition. A simple calculation reveals that the increased amount of H ₂ production derived mostly from FW, indicating that SWS addition synergistically enhanced H ₂ fermentation performance. This was attributed to the existence of Fe and Ca at much higher concentrations in the SWS compared to the FW. The batch process treating a mixture of FW and SWS was repeated and showed an average H ₂ yield of 2.11±0.20mol H ₂/mol hexose _added, which was 13% higher than that of FW treated alone.

Original language	English
Pages (from-to)	8501-8506
Number of pages	6
Journal	Bioresource technology
Volume	102
Issue number	18
DOIs	https://doi.org/10.1016/j.biortech.2011.04.089
Publication status	Published - 2011 Sept

Bibliographical note

Funding Information:
This work was supported by the Advanced Biomass R&D Center ( 2010-0029737 ) of Korea Grant funded by the Ministry of Education, Science and Technology.

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.2011.04.089

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title = "Sewage sludge addition to food waste synergistically enhances hydrogen fermentation performance",

abstract = "The effect of sewage sludge (SWS) addition on the H 2 fermentation of food waste (FW) was investigated. It was found that a slight addition of SWS (10:1=FW:SWS on a COD basis) significantly enhanced the H 2 fermentation performance, not only increasing the total amount of H 2 produced but accelerating the whole reaction, shortening the lag period, and increasing the H 2 production rate. Substrate degradation and microbial germination were also facilitated by SWS addition. A simple calculation reveals that the increased amount of H 2 production derived mostly from FW, indicating that SWS addition synergistically enhanced H 2 fermentation performance. This was attributed to the existence of Fe and Ca at much higher concentrations in the SWS compared to the FW. The batch process treating a mixture of FW and SWS was repeated and showed an average H 2 yield of 2.11±0.20mol H 2/mol hexose added, which was 13% higher than that of FW treated alone.",

author = "Kim, {Dong Hoon} and Kim, {Sang Hyou} and Kim, {Hyun Woo} and Kim, {Mi Sun} and Shin, {Hang Sik}",

note = "Funding Information: This work was supported by the Advanced Biomass R&D Center ( 2010-0029737 ) of Korea Grant funded by the Ministry of Education, Science and Technology.",

year = "2011",

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doi = "10.1016/j.biortech.2011.04.089",

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AU - Kim, Dong Hoon

AU - Kim, Sang Hyou

AU - Kim, Hyun Woo

AU - Kim, Mi Sun

AU - Shin, Hang Sik

N1 - Funding Information: This work was supported by the Advanced Biomass R&D Center ( 2010-0029737 ) of Korea Grant funded by the Ministry of Education, Science and Technology.

PY - 2011/9

Y1 - 2011/9

N2 - The effect of sewage sludge (SWS) addition on the H 2 fermentation of food waste (FW) was investigated. It was found that a slight addition of SWS (10:1=FW:SWS on a COD basis) significantly enhanced the H 2 fermentation performance, not only increasing the total amount of H 2 produced but accelerating the whole reaction, shortening the lag period, and increasing the H 2 production rate. Substrate degradation and microbial germination were also facilitated by SWS addition. A simple calculation reveals that the increased amount of H 2 production derived mostly from FW, indicating that SWS addition synergistically enhanced H 2 fermentation performance. This was attributed to the existence of Fe and Ca at much higher concentrations in the SWS compared to the FW. The batch process treating a mixture of FW and SWS was repeated and showed an average H 2 yield of 2.11±0.20mol H 2/mol hexose added, which was 13% higher than that of FW treated alone.

AB - The effect of sewage sludge (SWS) addition on the H 2 fermentation of food waste (FW) was investigated. It was found that a slight addition of SWS (10:1=FW:SWS on a COD basis) significantly enhanced the H 2 fermentation performance, not only increasing the total amount of H 2 produced but accelerating the whole reaction, shortening the lag period, and increasing the H 2 production rate. Substrate degradation and microbial germination were also facilitated by SWS addition. A simple calculation reveals that the increased amount of H 2 production derived mostly from FW, indicating that SWS addition synergistically enhanced H 2 fermentation performance. This was attributed to the existence of Fe and Ca at much higher concentrations in the SWS compared to the FW. The batch process treating a mixture of FW and SWS was repeated and showed an average H 2 yield of 2.11±0.20mol H 2/mol hexose added, which was 13% higher than that of FW treated alone.

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Sewage sludge addition to food waste synergistically enhances hydrogen fermentation performance

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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