Consulta: subjectFacets:"Suspended solids"
Registros recuperados: 3
Data/hora: 10/06/2024 06:54:16

Impact from a cattle waste lagoon rupture on a downstream fish farm: a case study
Provedor de dados: 67
Autores: De la Torre,Ana; Domínguez,Lucas; González,Miguel; Aguayo,Sonia; Carballo,Matilde; Muñoz,María Jesús.
A retrospective diagnosis of a massive fish mortality in an aquaculture facility was performed following a cattle waste effluent spill to a river used as source for the fish farm. The level of suspended solids and non-ionised ammonia (NH3) reaching the farm were estimated based on concentrations in the animal waste and the dilution factor in the river. The calculations indicate that both concentrations were higher in the fish farm after the leakage than the lethal concentrations reported in water quality criteria for freshwater fish. Therefore, these calculations tie the cattle waste leakage to the fish kills observed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diagnose; Rainbow trout kill; Ammonia; Suspended solids; Non ionised ammonia; Animal waste.
Ano: 2004
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2004000200005

COD, TSS, nutrients and coliforms removals in UASB reactors in two stages treating swine wastewater
Provedor de dados: 70
Autores: Ramires,Roseane Del'Arco; Oliveira,Roberto Alves de.
The performance of two upflow anaerobic sludge blanket (UASB) reactors was evaluated in pilot scale (908 and 188 L), installed in series (R1 and R2), fed with swine wastewater with TSS around 5 and 13 g L-1. The UASB reactors were submitted to HDT of 36 and 18 h with VOL of 5.5 to 34.4 g COD (L d)-1 in the R1 and HDT of 7.5 e 3.7 h with VOL from 5.1 to 45.2 g COD (L d)-1 in the R2. The average removal efficiencies of COD ranged from 55 to 85% in the R1 and from 43 to 57% in the R2, resulting in values from 82 to 93% in the UASB reactors in two stage. Methane concentrations in the biogas were 69 to 74% with specific production from 0.05 to 0.27 L CH4 (g removedCOD)-1 in the R1 and of 0.10 to 0.12 L CH4 (g removedCOD)-1 in the R2. The average removal...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Volumetric organic load; Methane; N and P removal; Metal removal; Suspended solids.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000600020

Comparison of two methods for evaluating waste of a flow through trout farm
Provedor de dados: 5
Autores: Roque D'Orbcastel, Emmanuelle; Blancheton, Jean-paul; Boujard, Thierry; Aubin, Joel; Moutounet, Yves; Przybyla, Cyrille; Belaud, Alain.
European water legislation enforces increasingly restrictive measures with regards to reduction of water consumption and waste emission in order to minimise the potential environmental impact of the agro industry sector. Fish farms are particularly concerned, but legislation covering effluent discharge varies significantly from country to country. However, recommendations and directives from institutional, national or regional bodies suggest the enforcement of increasingly strict waste reduction measures and the development of waste treatment. Before treatment, it is necessary to evaluate waste production in terms of composition and quantity. The waste quantification methods used today for fish culture systems are either based on direct measurements of...
Tipo: Text
Palavras-chave: Phosphorus; Nitrogen; Suspended solids; Trout farm; Waste.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-6822.pdf