Animal production that has been central to public discussions in Brazil because of the large amount of waste generated by swine operations and its potential impact on air, soil, and water resources. The aim of this paper is to present some recent advances in swine manure management research and practices in Brazil, and assessing their technical and economic performances. It was found that because of environmental concerns for the disposal of large amounts of swine manure generated under animal confinement, Brazilian swine producers have several technological challenges.
These challenges depend on several factors, like soil/plant support capacity, land availability, and producers investment capacity for adoption of advanced manure treatment technologies. The development of new advanced manure treatment technologies that can solve several environmental problems linked to manure disposal,
are compatible with the new reality of Brazilian’s industrial swine production, which has emerged as a major competitor in the international market. With the adoption of advanced technologies like enhancement of solid–liquid separation using flocculants and treatment processes (SMTS), economical considerations need to be done, particularly in Brazil and other developing countries that do not have government subsidies like the Europe Union or United States.

For more information the full article can be found at http://www.sciencedirect.com/science/journal/09608524