High nutrient removal rate from swine wastes and protein biomass production by full-scale duckweed ponds
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dc.contributor.author |
Belli Filho, Paulo |
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dc.contributor.author |
Costa, Rejane H. R. |
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dc.contributor.author |
Mohedano, Rodrigo A. |
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dc.contributor.author |
Tavares, Flávia A. |
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dc.date.accessioned |
2015-03-09T18:04:21Z |
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dc.date.available |
2015-03-09T18:04:21Z |
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dc.date.issued |
2012-02-16 |
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dc.identifier.other |
doi:10.1016/j.biortech.2012.02.083 |
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dc.identifier.uri |
https://repositorio.ufsc.br/xmlui/handle/123456789/130375 |
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dc.description |
Artigo publicado em: Elsevier - Bioresource Technology |
pt_BR |
dc.description.abstract |
Duckweed ponds have been successfully used in swine waste polishing, generating a biomass with high protein content. Therefore, the present study evaluated the efficiency of two full-scale duckweed ponds considering nutrient recovery from a piggery farm effluent (produced by 300 animals), as well as the biomass yield and crude protein (CP) content. A significant improvement in the effluent quality was observed, with the removal of 98.0% of the TKN (Total Kjeldahl Nitrogen) and 98.8% of the TP (Total Phosphorous), on average. The observed nitrogen removal rate is one of the highest reported (4.4 g/m2day of TKN). Additionally, the dissolved oxygen level rose from 0.0 to 3.0 mg/L, on average. The two ponds together produced over 13 tons of biomass (68 t/hayear of dry biomass), with 35% crude protein content. Because of the excellent nutrient removal and protein biomass production, the duckweed ponds revealed a great potential for the polishing and valorisation of swine waste, under the presented conditions. |
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dc.language.iso |
en_US |
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dc.subject |
Duckweed pond |
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dc.subject |
Swine waste |
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dc.subject |
Biomass production |
pt_BR |
dc.subject |
Landoltia punctata |
pt_BR |
dc.subject |
Nutrient recovery |
pt_BR |
dc.title |
High nutrient removal rate from swine wastes and protein biomass production by full-scale duckweed ponds |
pt_BR |
dc.type |
Article |
pt_BR |
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