Anaerobic Biodegradation
Mostrando 13-24 de 94 artigos, teses e dissertações.
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13. Sistema combinado aplicado ao tratamento de esgoto sanitario contendo formaldeido : desempenho e avaliação biomassa / Domestic wastewater treatment containing formaldepyhe byan anaerobic filter followed by a biological aerated filter : performance and biomass valuation
This study was developed with the intent to verify the treatability of domestic wastewater containing formaldehyde in a combined system formed by an Anaerobic Filter followed by a Biological Aerated Filter, each one with 12 h of hydraulic retention time (HRT). The reactor s performance was monitored by different influent formaldehyde concentration applied in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2007
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14. RemoÃÃo de surfactantes (LAS) no tratamento anaerÃbio de esgotos domÃsticos
A grande utilizaÃÃo domÃstica e industrial do alquilbenzeno linear sulfonado (do inglÃs Linear Alkylbenzene Sulfonate - LAS) provoca modificaÃÃes ambientais, como a contaminaÃÃo das margens dos rios, acarretando na destruiÃÃo dos importantes nichos ecolÃgicos e ainda prejudica o tratamento dos efluentes nas estaÃÃes de tratamento, devido à alta
Publicado em: 2006
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15. Avaliação da hidrólise alcalina da gordura sobre a biodegradação anaeróbia de soro de queijo
The cheese whey represents the most important reject of the industry of dairy products, mainly due to its expressive generated volume. The cheese whey is a problematic substrate under the environmental point of view, presenting high amounts of carbohydrates, proteins and fats, giving it a chemical demand of oxygen of approximately a hundred times larger than
Publicado em: 2005
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16. Caracterização microbiológica de cultura desnitrificante de reator anaeróbio horizontal de leito fixo utilizado na remoção de BTEX / Microbiologic characterization of anaerobic packed-bed reactor denitrifying culture used for BTEX removal
The monoaromatic hydrocarbons known as BTEX (benzene, toluene, ethylbenzene, and xylene) are among the greatest environmental pollution problems. These compounds are known by their recalcitrance in anoxic environments, and the removal of these toxics from anaerobic contaminated sites depends on the presence of an adapted microbial population capable of to pr
Publicado em: 2005
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17. Evaluation of the anaerobic biodegradability of sewage sludge stabilized by anaerobic reactors / Avaliação da biodegradabilidade anaerobia de lodos de esgoto provenientes de reatores anaerobios sequenciais
The potential of applicability of an anaerobic process can be evaluated from the knowledge of some characteristics of the residues to be treated. A preliminary evaluation of these characteristics can assist in the choice of a more suitable treatment system, what allows to estimate the production of biological solids, requirements for nutrients, methane produ
Publicado em: 2005
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18. Contribution to technological research of the microbial studies done at program BIOTA FAPESP: evaluation of anaerobic Pentachlorophenol (PCP) biodegradation in a horizontal-flow anaerobic immobilized biomass (HAIB) reactor / Contribuição à exploração tecnológica dos estudos microbianos realizados no programa BIOTA FAPESP: avaliação do potencial da degradação anaeróbia de pentaclorofenol (PCP) em reator anaeróbio horizontal de leito fixo (RAHLF)
O estudo que ora se apresenta integrou o conjunto de pesquisas do sub-projeto - Diversidade de Bactérias Associadas à Degradação de Compostos Recalcitrantes, do projeto temático BIOTA FAPESP - Ecologia Molecular e Taxonomia Polifásica de Bactérias de Interesse Ambiental e Agro-Industrial. Apresenta caráter inovador, na medida em que procurou avaliar
Publicado em: 2005
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19. Fungos degradadores de compostos organicos recalcitrantes sob condições microaerobia e anaerobia
The industrial activities of modern society produce great amounts of toxic compounds, which persist in rivers, soils and oceans, causing disturbance to ecosystems. Owing to an extracellular and non-specificenzymatic system produced by whiterot fungi, degradation of these xenobióticos became a viable alternative for environmental bioremediation. Such lignino
Publicado em: 2002
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20. CONSTRUCTION AND DETECTION OF THE RECOMBINANT RHODOCOCCUS SP. STRAIN RHA1 FOR MINERALIZATION OF PCBs IN SOIL
PCBs are still one of the most important environmental pollutants. We developed a strategy of combining the biphenyl and 4-chlorobenzoate (4-CBA) degradation pathways into the same microorganism for PCB degradation. The genes from Arthrobacter globiformis strain KZT1 responsible for transforming 4-CBA into 4- hydroxybenzoate were sequenced and their products
Publicado em: 2000
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21. Carbon and Hydrogen Isotopic Fractionation during Anaerobic Biodegradation of Benzene
Compound-specific isotope analysis has the potential to distinguish physical from biological attenuation processes in the subsurface. In this study, carbon and hydrogen isotopic fractionation effects during biodegradation of benzene under anaerobic conditions with different terminal-electron-accepting processes are reported for the first time. Different enri
American Society for Microbiology.
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22. Absence of microbial mineralization of lignin in anaerobic enrichment cultures.
The existence of anaerobic biodegradation of lignin was examined in mixed microflora. Egyptian soil samples, in which rapid mineralization of organic matter takes place in the presence of an important anaerobic microflora, were used to obtain the anaerobic enrichment cultures for this study. Specifically, 14CO2 or [14C]lignin wood was used to investigate the
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23. Microbial Decomposition of Synthetic 14C-Labeled Lignins in Nature: Lignin Biodegradation in a Variety of Natural Materials
Lignin biodegradation in a variety of natural materials was examined using specifically labeled synthetic 14C-lignins. Natural materials included soils, sediments, silage, steer bedding, and rumen contents. Both aerobic and anaerobic incubations were used. No 14C-labeled lignin biodegradation to labeled gaseous products under anaerobic conditions was observe
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24. Anaerobic Biodegradation of the Lignin and Polysaccharide Components of Lignocellulose and Synthetic Lignin by Sediment Microflora