Bio-hydrogen and methane production from two-phase anaerobic digestion of food waste under the scheme of acidogenic off-gas reuse

Bing Hua Yan; Ammaiyappan Selvam; Jonathan W C Wong

doi:10.1016/j.biortech.2019.122400

Bio-hydrogen and methane production from two-phase anaerobic digestion of food waste under the scheme of acidogenic off-gas reuse

Bing Hua Yan, Ammaiyappan Selvam, Jonathan W C Wong^*

^*Corresponding author for this work

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

38 Citations (Scopus)

Abstract

Anaerobic hydrolysis of food wastes sourced from bakery (T1), Chinese restaurant (T2), western-style restaurant (T3), and wet market (T4) were performed in leach bed reactors under the scheme of acidogenic off-gas reuse in methanogenic reactor. Results showed that food waste in T3 achieved the highest hydrogen production of 61.0 L/kg·VS_added. Highest activity of hydrogenase in both leachate and digestate samples confirmed the superior performance of H₂ production in T3. Mixed acid fermentation with domination of acetate and butyrate was observed in all four treatments, whereas variations in quantification and speciation of the acidogenic products were closely related to the composition of substrates. High volatile solids (VS) removal (76.7%) was observed in T3 while VS reduction rates of the other treatments ranged from 37 to 55%. High COD production of 0.65 gCOD /g·VS_added together with the reuse of elevated acidogenic off-gas ensured the highest specific CH₄ production of 0.42 L/g·VS_added in T3.

Original language	English
Article number	122400
Journal	Bioresource Technology
Volume	297
DOIs	https://doi.org/10.1016/j.biortech.2019.122400
Publication status	Published - Feb 2020

Scopus Subject Areas

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

User-Defined Keywords

Food waste
Hydrogen and methane
Metabolic pathway
Off-gas reuse
Two-phase anaerobic digestion

UN SDGs

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

Access to Document

10.1016/j.biortech.2019.122400

Cite this

@article{20a53562ed0441f5aba14ceb5ef78531,

title = "Bio-hydrogen and methane production from two-phase anaerobic digestion of food waste under the scheme of acidogenic off-gas reuse",

abstract = "Anaerobic hydrolysis of food wastes sourced from bakery (T1), Chinese restaurant (T2), western-style restaurant (T3), and wet market (T4) were performed in leach bed reactors under the scheme of acidogenic off-gas reuse in methanogenic reactor. Results showed that food waste in T3 achieved the highest hydrogen production of 61.0 L/kg·VSadded. Highest activity of hydrogenase in both leachate and digestate samples confirmed the superior performance of H2 production in T3. Mixed acid fermentation with domination of acetate and butyrate was observed in all four treatments, whereas variations in quantification and speciation of the acidogenic products were closely related to the composition of substrates. High volatile solids (VS) removal (76.7%) was observed in T3 while VS reduction rates of the other treatments ranged from 37 to 55%. High COD production of 0.65 gCOD /g·VSadded together with the reuse of elevated acidogenic off-gas ensured the highest specific CH4 production of 0.42 L/g·VSadded in T3.",

keywords = "Food waste, Hydrogen and methane, Metabolic pathway, Off-gas reuse, Two-phase anaerobic digestion",

author = "Yan, {Bing Hua} and Ammaiyappan Selvam and Wong, {Jonathan W C}",

note = "Funding Information: The authors would like to thank the National Natural Science Foundation of China ( 21806170 ) and Research Grant Council of the Hong Kong Special Administrative Region (Grant HKBU262013 ) for their financial support. ",

year = "2020",

month = feb,

doi = "10.1016/j.biortech.2019.122400",

language = "English",

volume = "297",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Bio-hydrogen and methane production from two-phase anaerobic digestion of food waste under the scheme of acidogenic off-gas reuse

AU - Yan, Bing Hua

AU - Selvam, Ammaiyappan

AU - Wong, Jonathan W C

N1 - Funding Information: The authors would like to thank the National Natural Science Foundation of China ( 21806170 ) and Research Grant Council of the Hong Kong Special Administrative Region (Grant HKBU262013 ) for their financial support.

PY - 2020/2

Y1 - 2020/2

N2 - Anaerobic hydrolysis of food wastes sourced from bakery (T1), Chinese restaurant (T2), western-style restaurant (T3), and wet market (T4) were performed in leach bed reactors under the scheme of acidogenic off-gas reuse in methanogenic reactor. Results showed that food waste in T3 achieved the highest hydrogen production of 61.0 L/kg·VSadded. Highest activity of hydrogenase in both leachate and digestate samples confirmed the superior performance of H2 production in T3. Mixed acid fermentation with domination of acetate and butyrate was observed in all four treatments, whereas variations in quantification and speciation of the acidogenic products were closely related to the composition of substrates. High volatile solids (VS) removal (76.7%) was observed in T3 while VS reduction rates of the other treatments ranged from 37 to 55%. High COD production of 0.65 gCOD /g·VSadded together with the reuse of elevated acidogenic off-gas ensured the highest specific CH4 production of 0.42 L/g·VSadded in T3.

AB - Anaerobic hydrolysis of food wastes sourced from bakery (T1), Chinese restaurant (T2), western-style restaurant (T3), and wet market (T4) were performed in leach bed reactors under the scheme of acidogenic off-gas reuse in methanogenic reactor. Results showed that food waste in T3 achieved the highest hydrogen production of 61.0 L/kg·VSadded. Highest activity of hydrogenase in both leachate and digestate samples confirmed the superior performance of H2 production in T3. Mixed acid fermentation with domination of acetate and butyrate was observed in all four treatments, whereas variations in quantification and speciation of the acidogenic products were closely related to the composition of substrates. High volatile solids (VS) removal (76.7%) was observed in T3 while VS reduction rates of the other treatments ranged from 37 to 55%. High COD production of 0.65 gCOD /g·VSadded together with the reuse of elevated acidogenic off-gas ensured the highest specific CH4 production of 0.42 L/g·VSadded in T3.

KW - Food waste

KW - Hydrogen and methane

KW - Metabolic pathway

KW - Off-gas reuse

KW - Two-phase anaerobic digestion

UR - http://www.scopus.com/inward/record.url?scp=85075908533&partnerID=8YFLogxK

U2 - 10.1016/j.biortech.2019.122400

DO - 10.1016/j.biortech.2019.122400

M3 - Journal article

C2 - 31767429

AN - SCOPUS:85075908533

SN - 0960-8524

VL - 297

JO - Bioresource Technology

JF - Bioresource Technology

M1 - 122400

ER -

Bio-hydrogen and methane production from two-phase anaerobic digestion of food waste under the scheme of acidogenic off-gas reuse

Abstract

Scopus Subject Areas

User-Defined Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this