Valorization of solid wastes from biomethanisation of pig breeding effluents

Elizabeth C.N.F.A. Duarte, B. Mendes, J. Santos Oliveira

Research output: Contribution to journalConference articlepeer-review


The biomethanisation of pig wastes produces a significant amount of biogas and reduces the organic load of the effluent. This effluent contains an important amount of nutrients that may be recuperated by coagulation-floculation, with cationic polymers. The optimization of this process was studied and the characteristics of the solid wastes produced determined. This product is a typical protein concentrate whose value is discussed, as well as possible reutilizations for feeding purposes.

Original languageEnglish
Pages (from-to)2097-2100
Number of pages4
JournalWater Science and Technology
Issue number9-11
Publication statusPublished - 1 Dec 1992
Event16th Biennial Conference of the International Association on Water Pollution Research and Control - Water Quality International '92 - Washington, United States
Duration: 24 May 199230 May 1992


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