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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12206

Title: Attainable regions and fuzzy multi-criteria decisions: Modeling a novel configuration of methane bioreactor using experimental limits of operation
Authors: Neba, F. Abunde
Asiedu, Nana Yaw
Addo, Ahmad
Seidu, Razak
Keywords: Attainable regions
Multi-criteria decision methods
Multi-stage anaerobic digestion
Novel digester prototype
Abattoir waste
Issue Date: Oct-2019
Publisher: Bioresource Technology
Citation: Bioresource Technology
Abstract: This study sets out to develop an approach that couples attainable regions and fuzzy multicriteria decision methods for modeling optimal configurations of multistage digesters without using a kinetic model of the process. The approach is based on geometric analysis of methane curves as their shapes contain valuable insight into substrate biodegradability characteristics during anaerobic digestion. With the case study of abattoir waste, the results indicate that the optimal batch operation policy involves four anaerobic sequencing batch reactors operated in series with fresh feed being added at the second and the four stages (fed-batch systems). For continuous mode operation, the optimal configuration involves a continuous stirred tank digester with bypass from feed followed by an anaerobic baffled digester, which has been used to obtain a novel prototype. The methodological framework presented in this study can be adopted to enhance design of multistage anaerobic digesters especially when reliable kinetic models are unavailable
Description: This article is published inBioresource Technology and also available at DOI: 10.1016/j.biortech.2019.122273
URI: 10.1016/j.biortech.2019.122273
Appears in Collections:College of Engineering

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