Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/8385

TitleBio4gas : evaluation and analysis of wastewater treatment facilities in the scope of biogas production maximization and energy production optimization
Author(s)Dias, S. (Simão)
Teixeira, E. (Eliana)
Laia, C.
Kroff, P.
Nogueira, R.
Brito, A. G.
KeywordsAnaerobic digestion
Co-digestion
Electric energy revenues
Net present value
Valuation
Issue date2008
CitationINTERNATIONAL CONFERENCE AND EXHIBITION ON BIOENERGY, Guimarães, Portugal, 2008 – “Bioenergy : challenges and opportunities.” [S.l. : s.n., 2008].
Abstract(s)The present work presents some of the results of five reports developed in the scope of optimization feasibility studies carried out at 6 small- and medium-sized wastewater treatment plants (WWTP) in Portugal. These 6 WWTP are operated by five companies that belong to the Águas de Portugal holding. The objective of the studies was twofold: to assess to which extent the production of biogas could be increased by means of operational modifications and/or by the implementation of co-digestion regimes; and also to simulate different scenarios for feed-in tariff of electricity taking in account energy prices calculated based upon the DL n.º 225/2007 of 11th May. In this way, several codigestion scenarios were defined based upon standard available organic residues. The results obtained showed that the implementation of co-digestion regimes represent a significative potential to increase the production of biogas, in some cases, over 600%. Even though, it was concluded that in some cases the costs of introducing new regimes of energy management were not supported by the increase of energy production, so a scale factor is associated to the revenues. This study contributed to the establishment of specific needs in terms of information management (digester operation, energy production/consumption, strategy for optimisation).
TypeConference paper
URIhttp://hdl.handle.net/1822/8385
AccessOpen access
Appears in Collections:CEB - Artigos em Livros de Atas / Papers in Proceedings

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