Anaerobic Fluidized Bed Reactor
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. INFLUENCE OF HYDRAULIC RETENTION TIME ON HYDROGEN PRODUCTION BY TREATING CHEESE WHEY WASTEWATER IN ANAEROBIC FLUIDIZED BED BIOREACTOR - AN APPROACH FOR DEVELOPING COUNTRIES
Abstract This study assessed the effect of hydraulic retention time (HRT) on biohydrogen production by dark fermentation using an anaerobic fluidized bed reactor fed with cheese whey synthetic wastewater. The reactor of 1.2 L was operated with an approximate carbohydrate concentration of 2800 mg L-1, and HRTs of 6, 4, 2, 1 and 0.5 h. Acetic and butyric acids
Braz. J. Chem. Eng.. Publicado em: 09/12/2019
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2. COMPARISON OF UASB AND FLUIDIZED-BED REACTORS FOR SULFATE REDUCTION
Abstract Reactor hydrodynamics is important for sulfidogenesis because sulfate reduction bacteria (SRB) do not granulate easily. In this work, the sulfate reduction performance of two continuous anaerobic bioreactors was investigated: (i) an upflow anaerobic sludge blanket (UASB) reactor and (ii) a fluidized bed reactor (FBR). Organic loading, sulfate reduct
Braz. J. Chem. Eng.. Publicado em: 2015-03
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3. Biohydrogen production from cassava wastewater in an anaerobic fluidized bed reactor
The effect of hydraulic retention time (HRT) and organic loading rate (OLR) on biological hydrogen production was assessed using an anaerobic fluidized bed reactor fed with cassava wastewater. The HRT of this reactor ranged from 8 to 1 h (28 to 161 kg COD/m³-d). The inoculum was obtained from a facultative pond sludge derived from swine wastewater treatment
Braz. J. Chem. Eng.. Publicado em: 2014-09
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4. Las degradation in a fluidized bed reactor and phylogenetic characterization of the biofilm
A fluidized bed reactor was used to study the degradation of the surfactant linear alkylbenzene sulfonate (LAS). The reactor was inoculated with anaerobic sludge and was fed with a synthetic substrate supplemented with LAS in increasing concentrations (8.2 to 45.8 mg l-1). The removal efficiency of 93% was obtained after 270 days of operation. Subsequently,
Braz. J. Chem. Eng.. Publicado em: 2013-09
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5. Influência do co-substrato na remoção de sabão em pó de uso doméstico e na diversidade microbiana de reator anaeróbio de leito fluidificado / Verification of influence of co-substrate in household detergent removal and microbial diversity in anaerobic fluidized bed biofilm reactor
O alquilbenzeno linear sulfonado (LAS), principal componente na formulação de detergentes e outros agentes de limpeza, é despejado constantemente em corpos de água em função da precariedade dos sistemas de tratamento de origem doméstica em países em desenvolvimento, como o Brasil. A principal motivação do presente estudo foi verificar a remoção d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/05/2012
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6. Produção de hidrogênio e etanol em reator anaeróbio de leito fluidizado: avaliação do desempenho de três materiais suporte em diferentes condições operacionais
Hydrogen and ethanol production using microorganisms is a promising area of technological development from a wide variety of renewable and alternative to this production is the use of anaerobic fluidized bed reactor (AFBR). One of the factors that most influence the performance of the AFBR is the material support, which must provide abrasion resistance, poro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/03/2012
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7. Phenol degradation in an anaerobic fluidized bed reactor packed with low density support materials
The objective of this research was to study phenol degradation in anaerobic fluidized bed reactors (AFBR) packed with polymeric particulate supports (polystyrene - PS, polyethylene terephthalate - PET, and polyvinyl chloride - PVC). The reactors were operated with a hydraulic retention time (HRT) of 24 h. The influent phenol concentration in the AFBR varied
Brazilian Journal of Chemical Engineering. Publicado em: 2012-03
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8. Caracterização microbiana e degradação de detergente de uso doméstico em reator anaeróbio de leito fluidificado / Microbial characterization and degradation of household detergent in anaerobic fluidized bed reactor
A presente pesquisa teve como objetivo avaliar a remoção de alquilbenzeno sulfonado linear (LAS), presente na composição do detergente em pó doméstico e caracterizar os microrganismos do domínio Bacteria do reator anaeróbio de leito fluidificado. Para tal foi utilizado um reator anaeróbio de leito fluidificado contendo areia como material suporte co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2011
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9. 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
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10. Remoção de alquilbenzeno linear sulfonado (LAS) e caracterização microbiana em reator anaeróbio de leito fluidificado / Removal of linear alkylbenzene sulfonate (LAS) and microbial characterization in anaerobic fluidized bed reactor
Nesse trabalho foi estudado a degradação anaeróbia do alquilbenzeno linear sulfonado (LAS), um surfactante amplamente utilizado na fabricação de detergentes e presente em esgoto doméstico e águas residuárias industriais. Para isso foi utilizado reator anaeróbio de leito fluidificado em escala de bancada (1,2 L) preenchido com material suporte para i
Publicado em: 2010
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11. Experimental and theoretical investigation of anaerobic fluidized bed biofilm reactors
This work presents an experimental and theoretical investigation of anaerobic fluidized bed reactors (AFBRs). The bioreactors are modeled as dynamic three-phase systems. Biochemical transformations are assumed to occur only in the fluidized bed zone. The biofilm process model is coupled to the system hydrodynamic model through the biofilm detachment rate; wh
Brazilian Journal of Chemical Engineering. Publicado em: 2009-09
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12. Influência de diferentes materiais suporte na produção de hidrogênio em reator anaeróbio de leito fluidizado
O hidrogenio e uma fonte de energia limpa e renovavel e e considerado o combustivel do futuro, pois gera somente agua durante sua combustao e apresenta calor de combustao de 122 kJ.g-1, o que representa 2,75 vezes mais conteudo de energia do que qualquer hidrocarboneto. A producao de hidrogenio usando microrganismos e uma promissora area de desenvolvimento t
Publicado em: 2009