Anaerobic Biodegradation
Mostrando 1-12 de 94 artigos, teses e dissertações.
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1. Anaerobic biodegradation of benzo(a)pyrene by a novel Cellulosimicrobium cellulans CWS2 isolated from polycyclic aromatic hydrocarbon-contaminated soil
Abstract Cellulosimicrobium cellulans CWS2, a novel strain capable of utilizing benzo(a)pyrene (BaP) as the sole carbon and energy source under nitrate-reducing conditions, was isolated from PAH-contaminated soil. Temperature and pH significantly affected BaP biodegradation, and the strain exhibited enhanced biodegradation ability at temperatures above 30 °
Braz. J. Microbiol.. Publicado em: 2018-06
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2. SONO-OXIDATIVE PRE-TREATMENT OF WASTE ACTIVATED SLUDGE BEFORE ANAEROBIC BIODEGRADATION
Abstract The effects of sonication, potassium ferrate (K2FeO4) oxidation and their simultaneous combination (called "sono-oxidative pre-treatment") on chemical properties and anaerobic digestion of waste activated sludge (WAS) were investigated and compared comprehensively. Based on chemical parameters, the optimum operating conditions were found to be 0.3 g
Braz. J. Chem. Eng.. Publicado em: 2017-01
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3. AvaliaÃÃo de biodigestor tubular na degradaÃÃo anaerÃbia de cama de frango de corte / Evaluation of tubular biodigester in anaerobic degradation with roiler litter
In the twenty-first century, the broiler production has increased in the world and continues increasing due to the high consumption of this meat. The broiler litter is the largest amount of waste generated in poultry production. It is also characterized by its high concentration of organic matter. The broiler production integrated system defines a radius aro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/02/2012
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4. Degradação de bifenila policlorada e caracterização da comunidade microbiana de reator anaeróbio com biofilme / Studies on the biodegradation and degradation of polychlorinated biphenyl in anaerobious conditions
Métodos de Microbiologia de anaeróbios estritos e de Biologia Molecular foram empregados para se conhecer a diversidade de microrganismos relacionados à degradação de ascarel em reatores anaeróbios metanogênicos. A avaliação de potencial metanogênico foi realizada para a escolha da melhor condição nutricional, bem como, para a seleção de materi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/10/2011
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5. A procura de bactérias degradadoras de metamidofós. / Searching for methamidofos degrading bacteria.
Methamidophos is a strong acetylcholinesterase inhibitor and, therefore, a very toxic organophosphorus insecticide. This product has been widely employed for pest control in a variety of cultures, but little information is available about its biodegradation. 12 bacteria were isolated and characterized, from water and soil samples obtained from a site contami
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/09/2011
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6. CARACTERIZAÇÃO METROLÓGICA DE UM MEDIDOR VOLUMÉTRICO PARA PEQUENAS TAXAS DE FLUXO DE GÁS UTILIZANDO O MÉTODO DE DIFERENÇA DE PRESSÃO / CHARACTERIZATION OF A GAUGE METROLOGICAL VOLUMETRIC FOR SMALL FLOW RATE OF GAS USING THE METHOD PRESSURE DIFFERENCE
Os sistemas de medição de pequenas taxas de fluxo de gás tem grande relevância nos âmbitos industriais e científicos, nos quais suas aplicações exigem geralmente medições com baixa incerteza. Esses sistemas de medição tem tido uma grande evolução ultimamente. Isso se deve, principalmente, à preocupação com a liberação de gases em processos
Publicado em: 2011
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7. Bioprospecção de genes envolvidos na síntese de biossurfactantes a apartir de microbiota de resevatórios de petróleo / Bioprospection of genes involved in the synthesis of biosurfactants from braziliam petroleum reservoirs microbial communities
Bioemulsifiers or biosurfactants are compounds produced by microorganisms which enhance the bioavailability of hydrophobic substances promoting the stabilization of substances with different polarities, like oil-in-water emulsion occurring in petroleum reservoirs. The samples used in this work were collected in the Potiguar Basin (RN, Brazil), and employed a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/07/2010
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8. Aerobic and anaerobic biodegradation of petroleum from Pampo Sul Field, Campos Basin, RJ, Brazil / Biodegradação aerobia e anaerobia de petroleo do Campo Pampo Sul, Bacia de Campos, RJ
The main purpose of this thesis was the simulation of petroleum biodegradation processes under reservoir aerobic, anaerobic or mixed conditions. The biodegradation experiments were first adapted to the laboratory scale in order to simulate different reservoir conditions taking care to select the best parameters to accelerate million times the biodegradation
Publicado em: 2009
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9. FE(III) AS ELECTRON ACCEPTOR FOR GASOLINE-ETHANOL BIODEGRADATION IN TROPICAL RESIDUAL SOIL / FE(III) COMO ACEPTOR DE ELÉTRONS NA BIODEGRADAÇÃO DE GASOLINA-ETANOL EM SOLO TROPICAL RESIDUAL
Gasoline monoaromatic hydrocarbons (BTEX) have been detected in aquifers due to storage tank spills from gas stations that lead to their consequent dissolution on groundwater. An aggravating factor in Brazil is ethanol being used as additive to gasoline, promoting an increase on pollutants percolation in soil since it works as co-solvent and is preferentiall
Publicado em: 2009
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10. Avaliação de desempenho de reator anaeróbio-aeróbio com recirculação da fase líquida no tratamento de água residuária proveniente de abatedouro de aves / Performance evaluation of an anaerobic-aerobic reactor with recycle of the liquid phase for treatment of poultry slaughterhouse wastewater
This work aimed to evaluate the performance of an up-flow fixed bed reactor, operated in a continuous way, using expanded clay and polyurethane foam as supports for immobilization of the biomass, for treatment of poultry slaughterhouse wastewater. Initially, the reactor was operated under anaerobic and anaerobic-aerobic conditions for the treatment of poultr
Publicado em: 2009
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11. Biodegradation of linear alkylbenzene sulfonate in anaerobic sequencing biofilm batch reactor with biomass immobilization in charcoal / Degradação de alquilbenzeno linear sulfonado em reator anaeróbio operado em bateladas seqüenciais com biomassa imobilizada em carvão vegetal
This work used an anaerobic sequencing biofilm batch reactor aiming the removal and degradation of the linear alkylbenzene sulfonate (LAS). Biomass from an UASB reactor treating suine wastewater was immobilized in charcoal fragments. The reactor was fed with synthetic substrate with addition of LAS. Feeding happened in four stages: (1) synthetic substrate wi
Publicado em: 2008
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12. Caracterização da comunidade bacteriana em água subterrânea contaminada com tetracloroeteno / Characterization of the bacterial community in groundwater contaminated with tetrachloroethene
Tetrachloroethene (PCE) is one of the most important contaminants of groundwater, since it is highly toxic and potentially carcinogenic. The bacterial communities of PCE contaminated groundwater and the diversity of bacteria capable of degrading this contaminant are barely known. The objective of this work is to compare the structure of bacterial communities
Publicado em: 2008