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

^*Corresponding author for this work

Environmental Engineering

Korea Institute of Energy Research
Daegu University
Arizona State University
Korea Advanced Institute of Science and Technology

Research output: Contribution to journal › Journal article › peer-review

115 Scopus citations

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
State	Published - 2011.09

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Food waste
Hydrogen fermentation
Metal
Sewage sludge
Synergistic

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10.1016/j.biortech.2011.04.089

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@article{517fcc54ddc44b9fa3574420d4454d26,

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.",

keywords = "Food waste, Hydrogen fermentation, Metal, Sewage sludge, Synergistic",

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

year = "2011",

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

language = "English",

volume = "102",

pages = "8501--8506",

journal = "Bioresource Technology",

issn = "0960-8524",

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T1 - Sewage sludge addition to food waste synergistically enhances hydrogen fermentation performance

AU - Kim, Dong Hoon

AU - Kim, Sang Hyou

AU - Kim, Hyun Woo

AU - Kim, Mi Sun

AU - Shin, Hang Sik

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.

KW - Food waste

KW - Hydrogen fermentation

KW - Metal

KW - Sewage sludge

KW - Synergistic

UR - https://www.scopus.com/pages/publications/80051689509

U2 - 10.1016/j.biortech.2011.04.089

DO - 10.1016/j.biortech.2011.04.089

M3 - Journal article

C2 - 21571523

AN - SCOPUS:80051689509

SN - 0960-8524

VL - 102

SP - 8501

EP - 8506

JO - Bioresource Technology

JF - Bioresource Technology

IS - 18

ER -

Sewage sludge addition to food waste synergistically enhances hydrogen fermentation performance

Abstract

UN SDGs

Keywords

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