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New. Renew. Energy

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New & Renewable Energy
Abbreviation: New. Renew. Energy
ISSN: 1738-3935 (Print) 2713-9999 (Online)
Online publication date 02 Feb 2024
Received 27 Nov 2023 Revised 14 Dec 2023 Accepted 18 Dec 2023
DOI: https://doi.org/10.7849/ksnre.2024.2039

음식물류 폐기물의 수소발효시 탄수화물 농도변화에 따른 수소전환율 및 미생물군집 영향
조경민1), * ; 박혜숙2), *

Hydrogen Yields and Microbial Community Impacts of Changes in Carbohydrate Concentration during Hydrogen Fermentation of Food Wastes
Kyung min Cho1), * ; Hye sook Park2), *
1)Adjunct Professor, Department of Environmental Health, Daejeon Health Institute University
2)Professor, Department of Environmental Health, Daejeon Health Institute University
Correspondence to : *hspark@hit.ac.kr Tel: +82-42-670-9223 Fax: +82-42-670-9597


© 2024 by the New & Renewable Energy
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study analyzed the hydrogen conversion rate and microbial community in conjunction with changes in carbohydrate concentration during hydrogen fermentation using food waste, and presented comprehensive research results for the condition 80 g Carbo COD/L, which showed the highest efficiency with a carbohydrate removal rate of 98.1% and a hydrogen conversion rate of 1.76 mol H2/mol.

The microbial community analysis found that Clostridium sp., widely known as a hydrogen-producing microorganism, was released in 80 g Carbo COD/L and confirmed that it was a dominant species at 98.1%. Conversely, in 100 g Carbo. Under COD/L conditions, Leuconostoc sp. showed the maximun prevalence, which is believed to hinder hydrogen production.


Keywords: Food wastes, Anaerobic digestion, Hydrogen, Organic acid, Microbial community
키워드: 음식물류폐기물, 혐기성소화, 수소, 유기산, 미생물군집