Data/hora: 03/06/2024 05:03:01

Biblioteca(s): | Embrapa Pesca e Aquicultura.
Data corrente: | 13/11/2012
Data da última atualização: | 13/11/2012
Autoria: | MOHEDANO, R. A.; COSTA, R. H. R.; MATOS, F. T. de; BELLI FILHO, P.
Afiliação: | RODRIGO A. MOHEDANO, UNIVERSIDADE FEDERAL DE SANTA CATARINA; REJANE H. R. COSTA, UNIVERSIDADE FEDERAL DE SANTA CATARINA; FLAVIA TAVARES DE MATOS, CNPASA; PAULO BELLI FILHO, UNIVERSIDADE FEDERAL DE SANTA CATARINA.
Título: | High nutrient removal rate from swine wastes and protein biomass production by full-scale duckweed ponds.
Ano de publicação: | 2012
Fonte/Imprenta: | Bioresource Technology, v. 112, p. 98-104, 2012.
Idioma: | Inglês
Conteúdo: | 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.
Palavras-Chave: | Duckweed pond; Landoltia punctata; Nutrient recovery; Swine waste.
Thesagro: | Biomassa; Esterco.
Thesaurus Nal: | Wastes.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
Registro original: | Embrapa Pesca e Aquicultura (CNPASA)
Exemplares: | CNPASA - (96-1) - UPC - AP - DD - CNPASA-SP42 -  - 2012.042 - DIS