Uasb Reactor
Mostrando 13-24 de 104 artigos, teses e dissertações.
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13. 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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14. Characterization of the biomass of a hybrid anaerobic reactor (HAR) with two types of support material during the treatment of the coffee wastewater
This study investigated the microbiology of a hybrid anaerobic reactor (HAR) in the removal of pollutant loads. This reactor had the same physical structure of an UASB reactor, however with minifilters inside containing two types of support material: expanded clay and gravel. Two hydraulic retention times (HRT) of 24h and 18h were evaluated at steady-state c
Braz. arch. biol. technol.. Publicado em: 2013-06
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15. Characterization of an acidification and equalization tank (AET) operating as a primary treatment of swine liquid effluent
This work evaluated the potential of the acidification equalization tank (AET) used as a primary treatment unit, treating the hog farming wastewater. The treatment system consisted of a degritter with a triangular-notch weir, for measuring the flow, a static sieve, and an acidification and equalization tank (AET), an anaerobic baffled reactor (ABR), an upflo
Braz. arch. biol. technol.. Publicado em: 2013-06
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16. Transferência de metano no sentido gás-líquido com vistas ao atendimento da demanda carbonácea da desnitrificação de esgoto sanitário
This work presents a simulation of a hybrid system for waste water treatment, in order to explain the possible use of a carbon supply on denitrification from the methane produced in an anaerobic reactor and transferred to the liquid mass of a reactor that would be removing nitrogen. It was used the biogas produced in a UASB reactor, that passed through a sto
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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17. Microbial diversity associated with the use of sulfide as electron donor for nitrogen removal from wastewater of reactors applied to anaerobic treatment of sewage / Diversidade microbiana associada ao uso de sulfeto como doador de elétrons para a remoção de nitrogênio de efluentes de reatores anaeróbios aplicados ao tratamento de esgotos sanitários
The widespread nitrate contamination in concentrations higher than recommended by legislation has raised interest in technologies for water and wastewater treatment. Biological nitrogen removal is relatively low cost and higher efficiency. Sulfide as electron donor can be oxidized to elemental sulfur or sulfate by sulfide oxidizing bacteria that can use nitr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2012
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18. META-ANÁLISE DO TRATAMENTO DE DEJETOS SUÍNOS EM REATORES ANAERÓBIO DE FLUXO ASCENDENTE COM MANTA DE LODO E REATOR SEQUENCIAL EM BATELADA / META-ANALYSIS OF SWINE WASTE TREATMENT SYSTEMS THROUGH UPFLOW ANAEROBIC SLUDGE BLANKET AND SEQUENCING BATCH REACTORS
The study was performed in order to evaluate, through meta-analysis, the relationship of upflow anaerobic sludge blanket or sequencing batch reactors on the removal efficiency ofpollutant loadin swine waste treatment. The database totaled 76 articles published between 1987 and 2011. The meta-analysis followed three sequential analyses: graphical, correlation
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/08/2011
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19. ESTUDO DA DIVERSIDADE MICROBIANA EM REATOR UASB APLICADO À DEGRADAÇÃO DE AZOCORANTES / ESTUDO DA DIVERSIDADE MICROBIANA EM REATOR UASB APLICADO À DEGRADAÇÃO DE AZOCORANTES
Este estudo investigou as populações microbianas potencialmente envolvidas na degradação do corante azo Drimaren Azul HF-RL em um reator UASB operado em escala de bancada à temperatura ambiente e sob condições de alimentação distintas (por exemplo, presença e ausência de glicose e/ou extrato de levedura). Para este projeto, foram aplicadas duas di
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2011
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20. Produção de biogás a partir de glicerol oriundo de biodiesel / Biogas production from glycerol generated on biodiesel industry
The Brazilian legislation demands the use of biodiesel mixed with diesel in an increasing rate. This raise on biodiesel production implies also on an increase on generation of glycerol, which is a liquid or semi-solid waste with high concentration of salts (approximately 46.1 g\ CL POT.-\ /L) and organic matter (1260 gCOD/L in average). Despite being widely
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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21. Comportamento hidrodinâmico e cinético dos reatores anaeróbios compartimentado (RAC) e manta de lodo (UASB) operados em série / The hydrodynamic and kinetic bahavior of the anaerobic baffled reactor (ABR) and upflow anaerobic Sludge blanket (UASB) operated in serie
The aim of this research was to determine the hidrodymanic and kinetics behavior of a pilot system plant, treating swine liquid effluent, installed in the Zootechnical Department of the Federal University of Lavras. The pilot system was composed by several units working in series, such as sand retention box (SRB), static sieve (SS), acidification and equaliz
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
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22. Biosolids: production, effects on eucalyptus seedlings growth, and assessment of human health risks / Biossólidos: produção, efeitos no crescimento de mudas de eucalipto e avaliação de risco à saúde humana
This work involved the production of biosolids by means of lime treatment and green house drying of UASB reactor sludge, the use of these biosolids to produce Eucalyptus urophylla seedlings, and an approach of microbiological risk assessment to estimate human health risks (occupational risks) associated with the production of the seedlings. In trials conduct
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2011
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23. Start-up and steady-state conditions of an Anaerobic Hybrid Reactor (AHR) using mini-filters composed with two types of support medium operating under low loading rates
The present work aimed at studying the operational parameters of an Anaerobic Hybrid Reactor (AHR) removing organic matter of coffee wastewater with low concentration. The AHR was built similar to an UASB reactor, however the interior was filled with mini-filters composed by two types of support materials: expanded clay and rolled pebble. Three start-ups wer
Brazilian Archives of Biology and Technology. Publicado em: 2011-10
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24. Anaerobic degradation of linear alkylbenzene sulfonate in fluidized bed reactor
An anaerobic fluidized bed reactor was used to assess the degradation of the surfactant linear alkylbenzene sulfonate (LAS). The reactor was inoculated with sludge from an UASB reactor treating swine wastewater and was fed with a synthetic substrate supplemented with LAS. Sand was used as support material for biomass immobilization. The reactor was kept in a
Brazilian Journal of Chemical Engineering. Publicado em: 2010-12