Fish Effluent
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. EFFECTIVENESS OF PHOSPHORUS REMOVAL IN AN SBR USING CO-PRECIPITATION WITH FERRIC CHLORIDE, AND ITS EFFECTS ON MICROBIAL ACTIVITY
Abstract The present study evaluated the phosphorus removal in a Sequencing Batch Reactor (SBR - 2,500L) used to treat the wastewater from an office building in two steps: phase I-Enhanced biological phosphorus removal (EBPR) and phase II-co-precipitation using FeCl3 as precipitant. The raw sewage presented a high organic load variation ranging from 0.11 (ph
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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2. PROCESSO DE ELETROCOAGULAÇÃO-FLOTAÇÃO: INVESTIGAÇÃO DOS PARÂMETROS OPERACIONAIS PARA O TRATAMENTO DE ÁGUAS RESIDUAIS DA INDÚSTRIA DE PESCADOS
The objective of this study was the utilization of an electrocoagulation-flotation process to evaluate the treatment of a real wastewater from fish industries (Brazil - SC). This type of effluent is usually treated by conventional processes, which are often not sufficient to meet the desired final quality of legal environmental requirements. The effect of cu
Quím. Nova. Publicado em: 2018-02
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3. Influence of co-substrates in the anaerobic degradation of an anionic surfactant
The removal of linear alkylbenzene sulfonate (LAS) was evaluated in a UASB reactor using short-chain alcohols (ethanol and methanol) and complex co-substrate (yeast extract). Using only methanol and ethanol as co-substrates resulted in removal of LAS between 30 and 41%. At the end, addition of a complex substrate (yeast extract) increased the removal of LAS
Braz. J. Chem. Eng.. Publicado em: 2013-09
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4. Desenvolvimento de um sistema de recirculação com uso de wetlands construídas para efluentes da piscicultura / Development of a recirculating system using constructed wetlands for aquaculture effluents
Global aquaculture has been growing very fast in recent decades due to several factors, including: population growth, demand for low calorie protein and especially the reduction of natural fish stocks. Brazil has enormous potential to become a world leader in fisheries production in captivity. However, the development of aquaculture in Brazil must be conduct
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2012
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5. AvaliaÃÃo da Piscicultura em Esgoto DomÃstico Tratado: Aspectos ZootÃcnicos, Ambientais e de Qualidade do Pescado Produzido / Evaluation of treated domestic sewage in fish: aspects of husbandry, environmental and quality of fish produced.
The use of wastewater is an alternative widespread nowadays. One way to reuse it in fish activity, considering that the effluent from Sewage Treatment Stations, are rich sources of nutrients that could be used by fish. However, some restrictions arise regarding the quality of animals for use in human diet. Thus, this research was conducted using treated sewa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2011
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6. Growth, yield, water and effluent quality in ponds with different management during tambaqui juvenile production
The objective of this work was to evaluate the effect of pond management on fish feed, growth, yield, survival, and water and effluent quality, during tambaqui (Colossoma macropomum) juvenile production. Fish were distributed in nine 600 m2 earthen ponds, at a density of 8 fish per m2; the rearing period was 60 days. Three different pond management were appl
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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7. Toxicity and genotoxicity of wastewater from gasoline stations
The toxicity and genotoxicity of wastewater from eight gasoline stations in Brasília, Brazil's capital city, was studied by assessing chromosomal aberrations, chromosomal malsegregation and the mitotic index in Allium cepa root cells, and the occurrence of micronucleus and nuclear abnormalities in peripheral erythrocytes of tilapia fish (Oreochromis nilotic
Genetics and Molecular Biology. Publicado em: 06/11/2009
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8. Reúso de água e polimento de efluentes de lagoas de estabilização por meio de cultivo consorciado de plantas da família Lemnaceae e tilápias
Recently, the interests towards duckweed-based-ponds utilization are due to the fact that these systems present high nutrient and algae removal efficiencies, producing high protein biomass. The present work was developed at The Wastewater Treatment Plant from Florianópolis (Casan) and divided into three trials. The first and second trials were conducted at
Publicado em: 2008
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9. Comportamento estratégico dos agentes da cadeia produtiva do peixe na região de Dourados, MS
For the study of the Competitive Advantage of production chain from fish of the Estate of Mato Grosso do Sul, based on studies of Porter (1989) in his book Competitive Advantage Creating and Sustaining Superior Performance, which takes one of the theoretical chain in the strategic area. To create sustainable advantage competitive is the main goal of the orga
Publicado em: 2008
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10. Influence of ar flow and initial nitrogen concentration in nitrification process using batch sequencing reactor with immobilized biomass / InfluÃncia da vazÃo de ar e da concentraÃÃo inicial de nitrogÃnio no processo de nitrificaÃÃo em um reator em batelada seqÃencial com biomassa
Os efluentes de abatedouro de peixes sÃo ricos em nutrientes e, entre eles, està o nitrogÃnio que causa a eutrofizaÃÃo dos corpos de Ãgua. A remoÃÃo do nitrogÃnio pode ser feita em duas etapas: nitrificaÃÃo e desnitrificaÃÃo. A nitrificaÃÃo à influenciada por fatores como temperatura, pH, alcalinidade, relaÃÃo C/N entre outros. Este experim
Publicado em: 2008
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11. Neutralização de drenagem ácida de minas com escória de aciaria elétrica do forno-panela
The acid mine drainage (AMD) is formed when certain sulfide minerals are exposed to oxidizing conditions. The AMD is commonly associated with coal mining, especially in coal waste deposits that contain high pyrite (FeS2) concentration. The neutralization of AMD using alkaline materials, like limestone and steel slag is one of the useful remediation technique
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2007
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12. Planktonic organisms from polishing lagoons of the sewage treatment system as natural food to Nile Tilapia culture / Organismos planctônicos de sistemas de lagoas de tratamento de esgotos sanitários como alimento natural na criação de tilápia do Nilo
One alternative for water reuse is the utilization of estabilishing/polishing lagoons wastewater treated to supply pisciculture tanks. In estabilishing/polishing lagoons integrated to pisciculture system, the lagoons produce natural feed (plankton) to the fishes, and pisciculture tanks contribute with the better discarded water quality, reducing the eutrofiz
Publicado em: 2007