Reactor Operated In Sequencing Batch
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Azo Dye Mineralization by Phanerochaete Chysosporium in a Sequencing Bath Reactor
ABSTRACT The mineralization of the azo dye congo red by the fungi Phanerochaete chrysosporium was studied in two sequential batch bioreactors (R1 and R2), operated in cycles of 48 h (step I) and 24 h (step II). In step I, glucose concentration was 1 g.L-1 in both reactors and in step II, 1 g.L-1 of glucose was maintained in R1, but R2 received no addition of
Braz. arch. biol. technol.. Publicado em: 29/11/2018
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2. Evaluation of the microbial diversity in sequencing batch reactor treating linear alkylbenzene sulfonate under denitrifying and mesophilic conditions using swine sludge as inoculum
The objective of this study was to evaluate the degradation of Linear Alkylbenzene Sulfonate (LAS) in anaerobic sequencing batch reactor (ASBR) under denitrifying conditions using swine sludge as inoculum. The reactor was operated for 104 days with synthetic substrate containing nitrate, and LAS was added later (22 mg/L). Considering the added mass of the LA
Braz. arch. biol. technol.. Publicado em: 06/03/2015
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3. Biological nitrogen removal over nitritation/denitritation using phenol as carbon source
A laboratory scale activated sludge sequencing batch reactor was operated in order to obtain total removal of influent ammonia (200; 300 and 500 mg NH3-N.L-1) with sustained nitrite accumulation at the end of the aerobic stages with phenol (1,000 mg C6H5OH.L-1) as the carbon source for denitrifying microorganisms during the anoxic stages. Ammonia removal abo
Brazilian Journal of Chemical Engineering. Publicado em: 2011-06
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4. Effect of ammonia load on efficiency of nitrogen removal in an SBBR with liquid-phase circulation
The removal of biological nitrogen from a synthetic wastewater with different ammonium nitrogen concentrations (50 and 100 mgN-NH4+/L) by a nitrification and denitrification process using a sequencing batch biofilm reactor (SBBR) with liquid-phase circulation was studied. The system with a total working volume of 4.6 L (3.7 L in the reactor and 0.9 L in the
Brazilian Journal of Chemical Engineering. Publicado em: 2008-06
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5. Effect of mixing mode on the behavior of an ASBBR with immobilized biomass in the treatment of cheese whey
A hydrodynamic study of a mechanically stirred anaerobic sequencing batch biofilm reactor (ASBBR) containing immobilized biomass on polyurethane foam was performed with the aim to determine homogeneity of the reactor based on total mixing time. Turbine or helix propellers were used for stirring at rotor speeds of 100, 200, 300 and 500 rpm. Experimental value
Brazilian Journal of Chemical Engineering. Publicado em: 2008-06
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6. Effect of the stirring speed, the type of impeller and the feed strategy in a mechanically stirred pilot-scale anaerobic sequencing batch reactor / Estudo da influência da agitação e da estratégia de alimentação sobre o desempenho de um ASBR em escala piloto aplicado ao tratamento de esgoto sanitário
The objective of this work was to assess the effect of the stirring speed, the type of impeller and the feed strategy in a mechanically stirred pilot-scale (da ordem de1 M POT.3) anaerobic sequencing batch reactor to two configurations: a containing granulated biomass (ASBR) and the other containing immobilized biomass (AnSBBR). Domestic wastewater was treat
Publicado em: 2008
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7. Utilização do metano como doador de elétrons para remoção de nitrogênio via nitrificação e desnitrificação em reator operado em bateladas seqüenciais / Nitrogen removal by biological nitrification and denitrification using methane as electron donor in a sequencing batch aerobic/anoxic reactor
Nitrogen removal via biological nitrification and denitrification was studied in a sequencing batch reactor submitted to aerate and anoxic periods. Methane was added as electron donor for denitrification in the anoxic periods. Different operational and nutritional conditions referred to as stages in this text were tested aiming to achieve the best nitrogen r
Publicado em: 2008
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8. Tratamento de esgoto sanitário em reatores anaeróbios operados em bateladas seqüenciais e periodicamente aerados / Treatment of domestic sewage in periodically aerated anaerobic sequencing batch reactors
The advance of anaerobic technology for wastewater treatment should be credited in great part to the development of the modern reactors with high rates of organic application, with merit to the ascendant anaerobic filter and mainly to the UASB configuration. The evolution of reactors led to the search to maximize the practical aplication to make the best use
Publicado em: 2006
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9. 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
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10. A simplified analysis of granule behavior in ASBR and UASB reactors treating low-strength synthetic wastewater
This work presents an analysis of the changes observed in granule characteristics of sludge in the treatment of synthetic wastewater at a concentration of about 500 mgCOD/L in batch, fed-batch (ASBR) and continuous (UASB) bench-scale reactors under similar experimental conditions. Physical and microbiological properties of the granules were characterized as
Brazilian Journal of Chemical Engineering. Publicado em: 2005-09
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11. Enhancement of the performance of an anaerobic sequencing batch reactor treating low-strength wastewater through implementation of a variable stirring rate program
This work focuses on enhancement of the performance of an anaerobic sequencing batch reactor with a six-vertical-blade-disk-turbine impeller, containing granulated biomass treating low-strength synthetic wastewater, through a study of the feasibility of implementing a variable stirring rate program. The reactor was operated at 30ºC and a six-hour cycle was
Brazilian Journal of Chemical Engineering. Publicado em: 2004-09
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12. Comportamento de reator anaeróbio operado em batelada seqüencial, contendo biomassa imobilizada e submetido a aumento progressivo da concentração de substrato de fácil degradação / Behavior of the anaerobic sequencing batch reactor containing immobilized biomass and submitted to a progressive increasing of the concetration of easy degradation substrate
The main objectives of this study were to evaluate the performance of the anaerobic sequencing batch reactor when subjected to a progressive increasing of the influent glucose concentration and estimate the kinetic parameters of glucoses degradation. Initially the reactor was operated with 8-hour cycles, treating glucose at concentrations of 500, 1000 and 20
Publicado em: 2003