Anaerobic Technology
Mostrando 13-24 de 39 artigos, teses e dissertações.
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13. Tratamento de lixiviado de aterro sanitário por um sistema composto por filtros anaeróbios seguidos de banhados construídos: estudo de caso - Central de Resíduos do Recreio, em Minas do Leão/RS / Sanitary landfill leachate treatment for a system composed by upflow anaerobic filters followed by constructed wetlands: case study - Recreio Central Waste, in Minas do Leão/RS
This study discussed the sanitary landfill leachate treatment in a full scale system composed by two upflow anaerobic filters followed by two constructed wetlands. The research was developed at the landfill leachate treatment station owned by Recreio Central Waste, located in Minas do Leão/RS. The objective of the study was to verify the efficiency of the s
Publicado em: 2008
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14. RESIDUALS FROM TWO HERBICIDES IMAZETHAPYR AND IMAZAPIC ON PADDY RICE WITH DIFFERENTS SOIL MANAGEMENTS / RESIDUAL DA MISTURA FORMULADA DOS HERBICIDAS IMAZETHAPYR E IMAZAPIC EM ÁREAS DE ARROZ SOB DIFERENTES MANEJOS DE SOLO
Red rice (Oryza spp.) is one of the main limiting factors of rice yield (O. sativa L.) in the world and particularly in the Rio Grande do Sul (RS) state Brazil. The Clearfield technology is a viable and efficient tool for controlling such harmful plant by using imidazolinone herbicides in tolerant cultivars. However, herbicides may persist on the soil after
Publicado em: 2008
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15. Avaliação da eficiência de filtros anaeróbios na remoção de coliformes fecais e ovos de helmintos
The technology of anaerobic reactors for sanitary wastewater treatment has been extensively developed in Brazil, and today it is practically consolidated. They present several advantages, such as low construction and operating costs, and low sludge production, the anaerobic reactors are an attractive alternative to minimize problematic lack of basic sanitati
Publicado em: 2007
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16. Influência dos nutrientes nitrogênio e fósforo na degradação anaeróbia do pentaclorofenol e na diversidade microbiana dos sedimentos enriquecidos do Estuário de Santos-São Vicente, Estado de São Paulo / Influence of nitrogen and phosphorus nutrients on the anaerobic degradation of pentachlorophenol and on the natural microbial diversity of sediments from the Santos-São Vicente estuary, state of São Paulo, Brazil
The research presented here aimed to determine the optimal nutritional conditions for the use of sediment from the Santos-São Vicente estuary in the state of São Paulo, Brazil, as an inoculum for a horizontal-flow anaerobic immobilized biomass reactor (HAIB) applied to the anaerobic degradation of pentachlorophenol (PCP), seeking to apply the technology on
Publicado em: 2007
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17. "Terapia endodôntica associada à irradiação do canal radicular com laser de diodo: avaliação térmica, morfológica, microbiológica e da infiltração marginal apical" / Endodontic root canal therapy usindg diode laser irradiation: thermographic, morphological, microbiological and marginal apical leakge studies
The aim of this study was to evaluate the effects of diode laser irradiation associated with endodontic therapy. The aspects analyzed were: temperature rise at the external root surface, morphological changes at the dentine root walls, apical marginal leakage after root sealing, and microbiological reduction after laser irradiation. The temperature rise in i
Publicado em: 2007
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18. 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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19. Kinetics of helminth eggs inactivation in water and digested sludges by saturated steam produced with methane from anaerobic digestors. / Inativação térmica de ovos de helmintos em água e em biossólidos digeridos: cinética em reator batelada e modelagem matemática em reator tubular.
Biological sludge can be a valuable resource for agricultural soil conditioning. However, an important obstacle for its use is the usual presence of pathogenic organisms, capable of disease dissemination. The main occurring pathogens are virus, bacteria, protozoa and helminth. Helminth eggs are very resistant to thermal inactivation. The Ascaris lumbricoids
Publicado em: 2006
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20. Avaliação da eficiência da remoção de matéria orgânica e microbiológica de três sistemas de lagoas de estabilização em série na Grande Natal-RN: Beira Rio, Jardim Lola I e Jardim Lola II
Waste stabilization ponds are the main technology in use for domestic sewage treatment in Rio Grande do Norte State (RN), northeast Brazil. The are around 80 systems, constructed mainly by municipal city halls, being series comprised by a primary facultative pond followed by two maturation ponds the most used configuration. Due to problems related with the p
Publicado em: 2006
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21. Tratamento anaerÃbico de efluentes gerados em matadouros de bovinos / Anaerobic Treatment of Effluents from Slaughterhouses
Generation of wastes in the agroindustrial activities is very significant, especially in the case of the slaughterhouses. In Pernambuco, the slaughterhouses are considered as an important contributor for the growing pollution of the receiving water bodies. Despite the available technology for effluents treatment, they are seldom used. The present work evalua
Publicado em: 2004
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22. Avaliação de desempenho do reator anaeróbio em batelada seqüencial (ASBR), contendo biomassa imobilizada em pedra pome, para tratamento de esgoto sanitário / Performance evaluation of a stirred anaerobic sequencing batch reactor containing immobilized biomass in pumice stone for wastewater treatment
The anaerobic sequencing batch reactors (ASBR) with immobilized biomass, that are under development at Mauá Institute of Technology and at São Carlos Engineering School, presented good performance in the wastewater treatment. Recent researches are trying to improve this reactor design and operation. The choice of the support material is one of the importan
Publicado em: 2003
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23. Diretrizes de gestÃo e tecnologia para o tratamento de efluentes industriais
From the second half of the last century onwards, an enormous industrial revolution started due to the increasing demands after the World War II. The industries needed to produce more, with more quality, and in lower time, to help the rebuilding of the countries involved in the conflict. Herewith, and in view of the exponential populational increase that occ
Publicado em: 2003
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24. Anaerobic infections of the urinary tract: are they being missed?
Routine anaerobic culture of urine identified the urinary tract as the primary focus of sepsis in a postoperative patient with Bacteroides fragilis septicaemia. Specimens of urine from six other symptomatic patients grew > 10(8) cfu/litre of a Bacteroides species in pure growth. The significance of these isolates is discussed. Multipoint technology and the a