Effect of zero-valent iron nanoparticles on taxonomic composition and hydrogen production from kitchen waste

Lijun Luo; Ka Lee Mak; Joyabrata Mal; Samir Kumar Khanal; Nirakar Pradhan

doi:10.1016/j.biortech.2023.129578

Effect of zero-valent iron nanoparticles on taxonomic composition and hydrogen production from kitchen waste

Lijun Luo, Ka Lee Mak, Joyabrata Mal, Samir Kumar Khanal, Nirakar Pradhan^*

^*Corresponding author for this work

Department of Biology

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

6 Citations (Scopus)

Abstract

This study investigated the effects of varying zero-valent iron (ZVI) (0 to 5,000 mg/L) on fermentative hydrogen (H₂) production, metabolic pattern, and taxonomic profile by using kitchen waste as substrate. The study demonstrated that the supplementation of 500 mg ZVI/L resulted in the highest H₂ yield (219.68 ± 11.19 mL H₂/g-volatile solids (VS)_added), which was 19% higher than the control. The metabolic pattern analysis showed that acetic and butyric acid production primarily drove the H₂ production. The taxonomic analysis further revealed that Firmicutes (relative abundance (RA): 80–96%) and Clostridium sensu stricto 1 (RA: 68–88%) were the dominant phyla and genera, respectively, during the exponential gas production phase, supporting the observation of accumulation of acetic and butyric acids. These findings suggest that supplementation of ZVI can enhance H₂ production from organic waste and significantly influence the metabolic pattern and taxonomic profile, including the metalloenzymes.

Original language	English
Article number	129578
Number of pages	9
Journal	Bioresource Technology
Volume	387
Early online date	26 Jul 2023
DOIs	https://doi.org/10.1016/j.biortech.2023.129578
Publication status	Published - Nov 2023

Scopus Subject Areas

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

User-Defined Keywords

Acidogenesis
Carbon-free energy carrier
Clostridium sensu stricto 1
Hydrogenase
Metalloenzymes

UN SDGs

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

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10.1016/j.biortech.2023.129578

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@article{c857c72f565e47889f7e387fbeb070ed,

title = "Effect of zero-valent iron nanoparticles on taxonomic composition and hydrogen production from kitchen waste",

abstract = "This study investigated the effects of varying zero-valent iron (ZVI) (0 to 5,000 mg/L) on fermentative hydrogen (H2) production, metabolic pattern, and taxonomic profile by using kitchen waste as substrate. The study demonstrated that the supplementation of 500 mg ZVI/L resulted in the highest H2 yield (219.68 ± 11.19 mL H2/g-volatile solids (VS)added), which was 19% higher than the control. The metabolic pattern analysis showed that acetic and butyric acid production primarily drove the H2 production. The taxonomic analysis further revealed that Firmicutes (relative abundance (RA): 80–96%) and Clostridium sensu stricto 1 (RA: 68–88%) were the dominant phyla and genera, respectively, during the exponential gas production phase, supporting the observation of accumulation of acetic and butyric acids. These findings suggest that supplementation of ZVI can enhance H2 production from organic waste and significantly influence the metabolic pattern and taxonomic profile, including the metalloenzymes.",

keywords = "Acidogenesis, Carbon-free energy carrier, Clostridium sensu stricto 1, Hydrogenase, Metalloenzymes",

author = "Lijun Luo and Mak, {Ka Lee} and Joyabrata Mal and Khanal, {Samir Kumar} and Nirakar Pradhan",

note = "Funding information: This work was supported by the Hong Kong Baptist University with grant numbers: RC-OFSGT2/20-21/SCI/010. Publisher copyright: {\textcopyright} 2023 Elsevier Ltd.",

year = "2023",

month = nov,

doi = "10.1016/j.biortech.2023.129578",

language = "English",

volume = "387",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Effect of zero-valent iron nanoparticles on taxonomic composition and hydrogen production from kitchen waste

AU - Luo, Lijun

AU - Mak, Ka Lee

AU - Mal, Joyabrata

AU - Khanal, Samir Kumar

AU - Pradhan, Nirakar

PY - 2023/11

Y1 - 2023/11

N2 - This study investigated the effects of varying zero-valent iron (ZVI) (0 to 5,000 mg/L) on fermentative hydrogen (H2) production, metabolic pattern, and taxonomic profile by using kitchen waste as substrate. The study demonstrated that the supplementation of 500 mg ZVI/L resulted in the highest H2 yield (219.68 ± 11.19 mL H2/g-volatile solids (VS)added), which was 19% higher than the control. The metabolic pattern analysis showed that acetic and butyric acid production primarily drove the H2 production. The taxonomic analysis further revealed that Firmicutes (relative abundance (RA): 80–96%) and Clostridium sensu stricto 1 (RA: 68–88%) were the dominant phyla and genera, respectively, during the exponential gas production phase, supporting the observation of accumulation of acetic and butyric acids. These findings suggest that supplementation of ZVI can enhance H2 production from organic waste and significantly influence the metabolic pattern and taxonomic profile, including the metalloenzymes.

AB - This study investigated the effects of varying zero-valent iron (ZVI) (0 to 5,000 mg/L) on fermentative hydrogen (H2) production, metabolic pattern, and taxonomic profile by using kitchen waste as substrate. The study demonstrated that the supplementation of 500 mg ZVI/L resulted in the highest H2 yield (219.68 ± 11.19 mL H2/g-volatile solids (VS)added), which was 19% higher than the control. The metabolic pattern analysis showed that acetic and butyric acid production primarily drove the H2 production. The taxonomic analysis further revealed that Firmicutes (relative abundance (RA): 80–96%) and Clostridium sensu stricto 1 (RA: 68–88%) were the dominant phyla and genera, respectively, during the exponential gas production phase, supporting the observation of accumulation of acetic and butyric acids. These findings suggest that supplementation of ZVI can enhance H2 production from organic waste and significantly influence the metabolic pattern and taxonomic profile, including the metalloenzymes.

KW - Acidogenesis

KW - Carbon-free energy carrier

KW - Clostridium sensu stricto 1

KW - Hydrogenase

KW - Metalloenzymes

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DO - 10.1016/j.biortech.2023.129578

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VL - 387

JO - Bioresource Technology

JF - Bioresource Technology

M1 - 129578

ER -

Effect of zero-valent iron nanoparticles on taxonomic composition and hydrogen production from kitchen waste

Abstract

Scopus Subject Areas

User-Defined Keywords

UN SDGs

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