Enhancement of biogas production from food waste using yeast as biocatalyst
酵母を生体触媒に用いた食品廃棄物からのバイオガス生成の促進 (AI 翻訳)
Olatunde, Abayomi O., Adeyanju, Olusiji A., Oribayo, Oluwasola
🤖 gxceed AI 要約
日本語
本研究は食品廃棄物からのバイオガス生成において、酵母を生体触媒として添加し、酸化鉄スクラバーでガス精製することで、収量を約45%向上させることを示した。中温条件（31-34℃、pH6.7-7.3）で40日間の実験の結果、触媒系から13,088cm³のバイオガスが得られ、非触媒系の9,021cm³を上回った。スクラバーにより硫化水素などの不純物が除去され、バイオガスの質も改善された。
English
This study demonstrates that adding yeast as a biocatalyst in anaerobic digestion of food waste, combined with an iron-oxide scrubber for gas purification, increases biogas yield by about 45%. Under mesophilic conditions (31-34°C, pH 6.7-7.3) over 40 days, the catalyzed system produced 13,088 cm³ of biogas compared to 9,021 cm³ from the control. The scrubber effectively removed hydrogen sulfide and other impurities, improving biogas quality.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の食品廃棄物処理や再生可能エネルギー導入の文脈では、酵母触媒によるバイオガス生成の効率化手法は、廃棄物発電やメタン発酵技術の改良に参考となる。ただし、実用化には大規模実証やコスト評価が必要。
In the global GX context
From a global perspective, this paper adds to the literature on enhancing biogas production from food waste using low-cost biocatalysts and purification methods, which is particularly relevant for decentralized waste-to-energy systems in developing regions. The approach aligns with circular economy and renewable energy goals.
👥 読者別の含意
🔬研究者:The study provides experimental data on yeast as a catalyst for biogas production, useful for researchers in anaerobic digestion and biocatalysis.
🏢実務担当者:Waste management and biogas plant operators can consider yeast addition and iron-oxide scrubbing as low-cost methods to increase yield and gas quality.
🏛政策担当者:Policymakers in developing countries may see this as a viable option for small-scale renewable energy and waste management, supporting decentralized solutions.
📄 Abstract（原文）
The increasing demand for sustainable energy and effective waste management has intensified interest in biogas production from organic residues. Food waste represents a readily available and highly biodegradable substrate for anaerobic digestion, yet its potential remains underutilised in many developing regions. This study investigates the enhancement of biogas production from food waste through the application of yeast as a biocatalyst and the use of an iron oxide scrubber for gas purification. Anaerobic digestion experiments were conducted using laboratory scale digester operated under mesophilic conditions for a period of 40 days. Key operational parameters, including pH, temperature, and daily biogas yield, were monitored throughout the digestion process. Two experimental setups were evaluated: a catalysed system containing yeast and non-catalysed control system. Results showed that the yeast addition significantly improved the rate of biomethanation and reduced lag phase of microbial activity. The total biogas yield obtained from the catalysed system was 13,088 cm 3 , compared to 9,021 cm 3 from non-catalyzed system. Optimal biogas production occurred within a pH range of 6.7-7.3 and at temperatures between 31 and 34 °C. The application of an iron-oxide scrubber further improved biogas quality by removing hydrogen sulphide and other impurities. The findings demonstrate that food waste conversion to biogas, aided biocatalysts, offers a viable approach for renewable energy generation and sustainable food waste management.
🔗 Provenance — このレコードを発見したソース
- Zenodo https://zenodo.org/records/20347497first seen 2026-05-23 04:14:54 · last seen 2026-05-27 04:15:44
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