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Anaerobic digestion of palm oil mill effluent and condensation water waste: an overall kinetic model for methane production and substrate utilization

Anaerobic digestion of palm oil mill effluent and condensation water waste: an overall kinetic model for methane production and substrate utilization
Anaerobic digestion of palm oil mill effluent and condensation water waste: an overall kinetic model for methane production and substrate utilization
The process of anaerobic digestion is viewed as a series of reactions which can be described kinetically both in terms of substrate utilization and methane production. It is considered that the rate limiting factor in the digestion of complex wastewaters is hydrolysis and this cannot be adequately described using a Monod equation. In contrast readily assimilable wastewaters conform well to this approach. A generalized equation has thus been derived, based on both the Monod and Contois equations, which serves extreme cases. The model was verified experimentally using continuous feed anaerobic digesters treating palm oil mill effluent (POME) and condensation water from a thermal concentration process. POME represents a complex substrate comprising of unhydrolyzed materials whereas the condensation water is predominantly short chain volatile fatty acids. Substrate removal and methane production in both cases could be predicted accurately using the generalized equation presented.
1615-7591
87-95
Borja, R.
ed513484-04ff-4424-ab79-dc715ca63146
Banks, C.J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
Martin, A.
169f0afa-12fc-43b5-a72d-7bfc493aa170
Khalfaoui, B.
3029b38c-b7db-40cb-aca5-fbd3675784d8
Borja, R.
ed513484-04ff-4424-ab79-dc715ca63146
Banks, C.J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
Martin, A.
169f0afa-12fc-43b5-a72d-7bfc493aa170
Khalfaoui, B.
3029b38c-b7db-40cb-aca5-fbd3675784d8

Borja, R., Banks, C.J., Martin, A. and Khalfaoui, B. (1986) Anaerobic digestion of palm oil mill effluent and condensation water waste: an overall kinetic model for methane production and substrate utilization. Bioprocess and Biosystems Engineering, 13 (2), 87-95. (doi:10.1007/BF00420434).

Record type: Article

Abstract

The process of anaerobic digestion is viewed as a series of reactions which can be described kinetically both in terms of substrate utilization and methane production. It is considered that the rate limiting factor in the digestion of complex wastewaters is hydrolysis and this cannot be adequately described using a Monod equation. In contrast readily assimilable wastewaters conform well to this approach. A generalized equation has thus been derived, based on both the Monod and Contois equations, which serves extreme cases. The model was verified experimentally using continuous feed anaerobic digesters treating palm oil mill effluent (POME) and condensation water from a thermal concentration process. POME represents a complex substrate comprising of unhydrolyzed materials whereas the condensation water is predominantly short chain volatile fatty acids. Substrate removal and methane production in both cases could be predicted accurately using the generalized equation presented.

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Published date: 1986

Identifiers

Local EPrints ID: 75317
URI: http://eprints.soton.ac.uk/id/eprint/75317
ISSN: 1615-7591
PURE UUID: 83b39aa9-bb19-40b5-932b-102d19281a26
ORCID for C.J. Banks: ORCID iD orcid.org/0000-0001-6795-814X

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:39

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Contributors

Author: R. Borja
Author: C.J. Banks ORCID iD
Author: A. Martin
Author: B. Khalfaoui

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