Advanced swine manure treatment and utilization in Brazil

Animal production has changed from subsistence to an industrial model, lowering production costs but giving rise to higher potential environmental impact. When the effluents are not correctly managed, serious pollution events can occur. In Brazil liquid manure is commonly stored in reception pits or...

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Bibliographic Details
Published in:Bioresource technology 2009-11, Vol.100 (22), p.5485-5489
Main Authors: Kunz, A., Miele, M., Steinmetz, R.L.R.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
animal manure management
Animals
Applied sciences
Biological and medical sciences
Brazil
Conservation of Natural Resources - methods
Covering
Effluents
Environmental impact
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Lagoons
liquid manure
livestock production
Management
Manure
Manure - analysis
manure storage
pig manure
Pits
Pollution
Refuse Disposal - methods
Sus scrofa
Swine
Swine effluents
Treatment strategies
Use of agricultural and forest wastes. Biomass use, bioconversion
Wastes
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Summary:Animal production has changed from subsistence to an industrial model, lowering production costs but giving rise to higher potential environmental impact. When the effluents are not correctly managed, serious pollution events can occur. In Brazil liquid manure is commonly stored in reception pits or covered lagoons (biodigestors), followed by land application as a biofertilizer. In some regions there is an excess of manure due to low soil support capacities, and in these cases new technologies have to be adopted to export or treat the excess effluent. Manure storage time in pits/covered lagoons and new polymers to separate the solid fraction have been studied in Brazil. Treatment technologies, like swine manure treatment systems (SMTS), have been developed from a technical and economical point of view to optimize the processes and give a technological alternative to pork producers increasing production while reducing environmental impact.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2008.10.039