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Thermophilic anaerobic co-digestion of cattle manure with agro-wastes and energy crops: comparison of pilot and full scale experiences

Record type: Article

The paper deals with the benefits coming from the application of a proper process temperature (55 °C) instead of a ‘reduced’ thermophilic range (47 °C), that is often applied in European anaerobic co-digestion plants. The experimental work has pointed out that biogas production improve from 0.45 to 0.62 m3/kg VS operating at proper thermophilic conditions. Moreover, also methane content was higher: from 52% to 61%. A general improvement in digester behaviour was clear also considering the stability parameters comparison (pH, ammonia, VFA content). The second part of the study takes into account the economic aspects related to the capital cost of anaerobic digestion treatment with a 1 MW co-generation unit fro heat and power production (CHP). Moreover, the economic balance was also carried out considering the anaerobic supernatants treatment for nitrogen removal. The simulation showed how a pay-back-time of 2.5 yr and between 3 and 5 yr respectively could be determined when the two options of anaerobic digestion only and together with the application of a nitrogen removal process were considered.

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Citation

Cavinato, C., Fatone, F., Bolzonella, D. and Pavan, P. (2010) Thermophilic anaerobic co-digestion of cattle manure with agro-wastes and energy crops: comparison of pilot and full scale experiences Bioresource Technology, 101, (2), pp. 545-550. (doi:10.1016/j.biortech.2009.08.043). (PMID:19747821).

More information

Published date: January 2010
Keywords: anaerobic co-digestion, thermophilic, biogas, cattle manure, economics

Identifiers

Local EPrints ID: 185923
URI: http://eprints.soton.ac.uk/id/eprint/185923
ISSN: 0960-8524
PURE UUID: 9bc78c51-8973-4770-b527-ca9c17cec648

Catalogue record

Date deposited: 11 May 2011 11:19
Last modified: 18 Jul 2017 11:48

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Contributors

Author: C. Cavinato
Author: F. Fatone
Author: D. Bolzonella
Author: P. Pavan

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