期刊
BIORESOURCE TECHNOLOGY
卷 392, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2023.130017
关键词
Anaerobic digestion; Biogas generation; Data mining; Ensemble modelling; Organic waste; Real-time operation
This study introduces a novel approach for real-time anaerobic digestion operation using an ensemble decision-making framework of weak learner data mining models. The framework utilizes practical features such as waste composition, added water, and feeding volume to predict biogas yield and generate an optimized weekly operation pattern. The results show a significant improvement in prediction accuracy and biogas generation, validating the effectiveness of the framework.
This study presents a novel approach for real-time operation of anaerobic digestion using an ensemble decision-making framework composed of weak learner data mining models. The framework utilises simple but practical features such as waste composition, added water and feeding volume to predict biogas yield and to generate an optimised weekly operation pattern to maximise biogas production and minimise operational costs. The effectiveness of this framework is validated through a real-world case study conducted in the UK. Comparative analysis with benchmark models demonstrates a significant improvement in prediction accuracy, increasing from the range of 50-80% with benchmark models to 91% with the proposed framework. The results also show the efficacy of the weekly operation pattern, which leads to a substantial 78% increase in biogas generation during the testing period. Moreover, the pattern contributes to a reduction of 71% in total days required for feeding and 30% in total days required for pre-feeding.
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