Anaerobic Sequencing Batch Reactor
Mostrando 13-24 de 35 artigos, teses e dissertações.
-
13. RemoÃÃo biolÃgica de nitrogÃnio de efluente avÃcola usando reator em batelada sequÃncial
Slaughterhouses and bird cold storage processing plants stand out as large polluters, particularly because of the large amounts of waste rich in organic substances, solids, oils and greases, nutrients, specially nitrogen and phosphorus. Nitrogen compounds removal from wastewater is usually accomplished through biological processes, by nitrification under aer
Publicado em: 2009
-
14. 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
-
15. 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
-
16. 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
-
17. Desempenho de um reator anaeróbico em bateladas sequenciais no tratamento de lixiviado proveniente da degradação de resíduos sólidos urbanos / Performance of an Anaerobic Sequencing Batch Reactor treating leachate from the degradation of urban solid waste / Performance of an Anaerobic Sequencing Batch Reactor treating leachate from the degradation of urban solid waste / Desempenho de um reator anaeróbico em bateladas sequenciais no tratamento de lixiviado proveniente da degradação de resíduos sólidos urbanos
Esta pesquisa foi realizada em um Reator Anaeróbio operando em Bateladas Seqüenciais (RBSAN) cujo volume reacional foi 20 L e inoculado com lodo granular proveniente de um reator UASB tratando despejos de cervejaria. O RBSAN foi operado sob duas etapas distintas (com e sem agitação mecânica). A agitação mecânica foi promovida por meio de impelidor do
Publicado em: 2008
-
18. 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
-
19. 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
-
20. Estudo da remoção de sulfato em biorreator operado em batelada e batelada alimentada seqüenciais, contendo biomassa imobilizada e utilizando agitação mecânica e "draft-tube" / Study on sulfate removal in an anaerobic sequencing batch reactor containing immobilized biomass, and utilizing mechanical agitation and "draft-tube"
Um reator anaeróbio tratando esgoto sintético de baixa concentração de matéria orgânica (500 mgDQO/L-1) e enriquecido com diferentes concentrações de sulfato (razões DQO/[SO4-2] de 1,34, 0,67 e 0,34) foi submetido à diferentes estratégias de alimentação (batelada e batelada alimentada de 3 h e de 6 h). O reator operou com capacidade de 4,0 L e t
Publicado em: 2008
-
21. Influence of ar flow and initial nitrogen concentration in nitrification process using batch sequencing reactor with immobilized biomass / InfluÃncia da vazÃo de ar e da concentraÃÃo inicial de nitrogÃnio no processo de nitrificaÃÃo em um reator em batelada seqÃencial com biomassa
Os efluentes de abatedouro de peixes sÃo ricos em nutrientes e, entre eles, està o nitrogÃnio que causa a eutrofizaÃÃo dos corpos de Ãgua. A remoÃÃo do nitrogÃnio pode ser feita em duas etapas: nitrificaÃÃo e desnitrificaÃÃo. A nitrificaÃÃo à influenciada por fatores como temperatura, pH, alcalinidade, relaÃÃo C/N entre outros. Este experim
Publicado em: 2008
-
22. Anaerobic degradation of formaldehyde in sequencing batch reactor containing immobilized biomass / Degradação anaeróbia de formaldeído em reator operado em bateladas seqüênciais contendo biomassa imobilizada
Formaldehyde residues are discharged into the environment in several different ways, as a result of several industrial processes, as well as its use as a preservative. Research for suitable technologies for treatment of formaldehyde points to physical-chemical and biological processes, with special attention to anaerobic processes, once they represent compac
Publicado em: 2007
-
23. 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
-
24. 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