Granular Biomass
Mostrando 1-12 de 16 artigos, teses e dissertações.
-
1. Sequencing batch reactor operation for treating wastewater with aerobic granular sludge
In this work, the performance of a sequencing batch reactor (SBR) on aerobic granular sludge was studied for urban wastewater treatment. The system was inoculated with aerobic activated sludge collected from a wastewater treatment plant and, after 30 days of operation, the first granules observed had an average diameter of 0.1 mm. The biomass concentration r
Braz. J. Chem. Eng.. Publicado em: 2014-03
-
2. Caracterização microbiana e remoção do alquilbenzeno linear sulfonado em reator EGSB / Microbial characterization and removal of linear alkylbenzene sulfonate in EGSB reactor
O presente trabalho teve por objetivo avaliar a eficiência de remoção do surfactante aniônico alquilbenzeno linear sulfonado (LAS) em reator anaeróbio de leito granular expandido - EGSB (1,5 litros) com recirculação e alimentação com meio mineral. Além de caracterizar filogeneticamente a diversidade de bactérias na presença do surfactante. O sist
Publicado em: 2011
-
3. Partially aerated attached biomass bed reactor applied to treatment sanitary sewage treatment / Reator com leito de biomassa aderida aerado parcialmente aplicado ao tratamento de esgoto sanitário
This work aimed to evaluate the performance of a full scale up-flow attached biomass bed reactor (159 M POT.3) and with continuous aeration at 7 m above bottom of the reactor to sanitary sewage treatment. The bed of the reactor was constituted for activated granular carbon, anthracite carbon and sand. The work was divided into two stages. In the first stage,
Publicado em: 2010
-
4. Obtenção e caracterização filogenética de consórcio de bactérias púrpuras não-sulforosas consumidoras de ácidos orgânicos visando a produção de hidrogênio em reator anaeróbio de batelada / Obtaintion and phylogenetic characterization of consortium of phototrophic purple non-sulfur bacteria for hydrogen production from organic acids in the anaerobic batch reactor
The aim of this work was enrich a mixture of granular sludge of an up flow anaerobic sludge blanket (UASB) under anoxygenic phototrophic conditions. The techniques of molecular biology identified 17 operational taxonomic units (UTO) in the microbial consortium among the sequences analised, which were similar to Rhodobacter, genus widely cited in studies of h
Publicado em: 2009
-
5. Influência da taxa de carregamento orgânico na degradação anaeróbia da vinhaça em reator de leito fluidizado
In this work, the mesophilic anaerobic degradation (35 C) of the sugar cane vinasse was studied in an anaerobic fluidized bed reactor (RALF) for 255 days. The reactor, built in acrylic and with a total volume of 4,192 cm3, was filled with polystyrene particles as a means support, occupying 70 % of the total volume, and operated with hydraulic retention time
Publicado em: 2008
-
6. Enriquecimento de consórcios microbianos em quimiostatos sob condições anammox / Enrichment of microbial trusts in chemostats with anammox conditions
This research aimed to enrich and to purify, in chemostats, microbial trusts capable to realize ammonium oxidation to dinitrogen (N IND.2) under anaerobic conditions, using as inoculum: (Q1) biomass from nitrifying-denitrifying reactor of wastewater treatment plant of amino-acids industry (Ajinomoto) and (Q2) granular sludge from upflow anaerobic sludge blan
Publicado em: 2007
-
7. Tratamento de vinhaça em reator anaeróbio operado em batelada seqüencial contendo biomassa imobilizada sob condições termofílicas e mesofílicas / Vinasse treatment in anaerobic sequencing batch reactor with immobilized biomass under thermophilic and mesophilic conditions
In this work, the viability of the thermophilic (55 Celsius degrees) and mesophilic (35 Celsius degrees) anaerobic treatment of sugar cane vinasse in an anaerobic sequencing batch reactor containing immobilized biomass (ASBBR) was evaluated. The reactor was filled with polyurethane foam matrices inoculated with a granular sludge taken from an UASB reactor tr
Publicado em: 2006
-
8. Effect of organic load and fill time on stability and efficiency of an ASBR containing granular biomass treating cheese whey / Influência da carga orgânica e do tempo de enchimento sobre o desempenho do reator anaeróbio em batelada seqüencial com biomassa granulada tratando soro de queijo
Avaliou-se a influência da carga orgânica volumétrica (COV) aplicada e do tempo de enchimento sobre a estabilidade e a eficiência do ASBR com biomassa granulada, operado em batelada e batelada alimentada seqüenciais, tratando soro de queijo diluído. Os ensaios foram realizados a 30 graus C com volume total de meio de 5,0 litros e tempo de ciclo de 8 ho
Publicado em: 2006
-
9. Influência do tipo de impelidor sobre o desempenho do reator anaeróbio em batelada seqüencial com biomassa granulada tratando esgoto sintético / Influence of the impeller type on the performance of the anaerobic sequencing batch reactor with granulated biomass treating synthetic wastewater
Em um reator de fundo redondo e volume útil de 5 L tratando esgoto sintético com carga orgânica de 800 mgDQO. L POT.-1 com biomassa granulada a influência do tipo de escoamento e velocidade rotacional foi investigada com o uso de cinco impelidores sendo eles turbina e pá de seis pás planas verticais, turbina e pá de seis pás planas inclinadas 45 grau
Publicado em: 2006
-
10. Introduction of a de novo bioremediation ability, aryl reductive dechlorination, into anaerobic granular sludge by inoculation of sludge with Desulfomonile tiedjei.
Methanogenic upflow anaerobic granular-sludge blanket (UASB) reactors treat wastewaters at a high rate while simultaneously producing a useful product, methane; however, recalcitrant environmental pollutants may not be degraded. To impart 3-chlorobenzoate (3-CB)-dechlorinating ability to UASB reactors, we inoculated granular sludge in UASB reactors with eith
-
11. Influence of a supplemental carbon source on anaerobic dechlorination of pentachlorophenol in granular sludge.
Anaerobic dechlorination of pentachlorophenol (PCP) was studied in two upflow anaerobic sludge blanket reactors. One reactor received glucose (0.9 g liter-1) as an additional carbon source; the other one served as a control. The concentration of PCP in the medium was 4.5 and 3.0 mg liter-1 in the experimental and control reactors, respectively. The reactors
-
12. Composition and Distribution of Extracellular Polymeric Substances in Aerobic Flocs and Granular Sludge
Extracellular polymeric substances (EPS) were quantified in flocculent and aerobic granular sludge developed in two sequencing batch reactors with the same shear force but different settling times. Several EPS extraction methods were compared to investigate how different methods affect EPS chemical characterization, and fluorescent stains were used to visual
American Society for Microbiology.