Automatic monitoring and early warning approach of process acidification in methane fermentation of food waste due to trace element deficiency
Rattachement africain : jp, cn. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Methane fermentation is an environmentally friendly method for treating organic wastes, and food waste (FW) is highly suitable due to its biodegradability. However, FW systems often experience process acidification caused by trace element (TE) deficiencies, highlighting the need for early-warning (EW) and automatic monitoring. This study proposes an automated monitoring and EW approach using online indicators. Two TE-deficiency-induced acidification episodes and subsequent recovery phases were reconstructed through combined automatic and manual monitoring. Based on the Mann-Kendall trend test, gas production, pH, and oxidation-reduction potential (ORP) were identified as sensitive EW indicators, enabling diagnosis of inhibition type. Principal Component Analysis (PCA) and correlation analysis identified key stability parameters. Results show that online pH, supported by ORP, can reliably reconstruct system stability during acidification, allowing accurate detection of both onset and severity. These findings establish a data-driven foundation for reliable, real-time process supervision in FW methane-fermentation systems.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Automatic monitoring and early warning approach of process acidification in methane fermentation of food waste due to trace element deficiency
- Date Crossref
- 01/03/2026
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Tohoku University pays non établi dans la noticeUniversité ou école supérieure
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University of Science and Technology Beijing Department of Environmental Science and Engineering pays non établi dans la noticeUniversité ou école supérieure
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State Key Joint Laboratory of Environment Simulation and Pollution Control pays non établi dans la noticeStructure de recherche
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Tsinghua University pays non établi dans la noticeUniversité ou école supérieure
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Graduate School of Engineering Department of Civil and Environmental Engineering pays non établi dans la noticeUniversité ou école supérieure
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School of Environment State Key Joint Laboratory of Environment Simulation and Pollution Control pays non établi dans la noticeUniversité ou école supérieure
Tohoku University, Department of Environmental Science and Engineering — University of Science and Technology Beijing et State Key Joint Laboratory of Environment Simulation and Pollution Control, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.