Facultative Pond
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Biohydrogen production from cassava wastewater in an anaerobic fluidized bed reactor
The effect of hydraulic retention time (HRT) and organic loading rate (OLR) on biological hydrogen production was assessed using an anaerobic fluidized bed reactor fed with cassava wastewater. The HRT of this reactor ranged from 8 to 1 h (28 to 161 kg COD/m³-d). The inoculum was obtained from a facultative pond sludge derived from swine wastewater treatment
Braz. J. Chem. Eng.. Publicado em: 2014-09
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2. Tratamento de esgoto sanitário pelo sistema zona de raízes utilizando plantas de bambu / Sewage treatment by root zone system using bamboo plants.
This study aimed to evaluate the efficiency of three species of bamboo (Guadua angustifolia, Phyllostachys aurea and Phyllostachys bambusoides) in the sanitary sewage treatment, with a vertically downward sub-surface flow root zone system, in Goiânia, GO, Brazil. Sewage from a university was applied to asbestos cement water tanks with 1,000 liters volume ca
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2011
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3. Tratamento de esgoto sanitário pelo sistema zona de raízes utilizando plantas de bambu / Sewage treatment by root zone system using bamboo plants.
This study aimed to evaluate the efficiency of three species of bamboo (Guadua angustifolia, Phyllostachys aurea and Phyllostachys bambusoides) in the sanitary sewage treatment, with a vertically downward sub-surface flow root zone system, in Goiânia, GO, Brazil. Sewage from a university was applied to asbestos cement water tanks with 1,000 liters volume ca
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2011
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4. Pós-tratamento de efluente de lagoa facultativa visando à remoção de nitrogênio amoniacal. / Post treatment of facultative pond effluent aiming removal of ammonia nitrogen.
Discute o pós-tratamento de efluente de lagoas facultativas visando à remoção de nitrogênio amoniacal. Para isso, foram utilizadas unidades terciárias em escala piloto. A escolha do tipo de unidades para o pós-tratamento do efluente levou em consideração a questão do baixo custo e simplicidade de operação. Desta forma, para o estudo, fez-se opç�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/04/2011
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5. Post-treatment of photosynthetic facultative pond effluent on trickling filters in order to remove ammonia. / Pós-tratamento de efluente de lagoa facultativa fotossintética em filtros biológicos percoladores visando remoção de nitrogênio amoniacal.
Neste trabalho, estudou-se a utilização de filtros percoladores como tratamento complementar de efluente de lagoa de estabilização visando a remoção de nitrogênio, principal causador de problemas como a eutrofização de corpos hídricos em conjunto com o fósforo. A motivação principal para o desenvolvimento desta pesquisa foi a dificuldade encontr
Publicado em: 2011
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6. Agreement index and fuzzy risk for the evaluation of waste stabilization pond systems / INDICE DE CONCORDÃNCIA E RISCO FUZZY NA AVALIAÃÃO DO DESEMPENHO DE SISTEMAS DE LAGOAS DE ESTABILIZAÃÃO
In the present study fuzzy arithmetic via triangular fuzzy numbers (TFNs) was applied to compute Fuzzy Agreement Index (FAI) and Fuzzy Risk (FR) for the evaluation of operational aspects, performance and effluent quality in 14 full-scale waste stabilization pond plants (6 primary facultative ponds â PFPs and 8 pond series- PSs) treating domestic sewage. Fin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/10/2010
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7. Revisiting the influence of loading on organic material removal in primary facultative ponds
This paper investigated the influence of organic loading on BOD and COD removal in primary facultative ponds. The study was based on six full-scale pond plants in which average removals of unfiltered biochemical oxygen demand (BOD) and chemical oxygen demand (COD) were 72 and 50%, respectively. For filtered samples, the removals were 89 and 83%, respectively
Brazilian Journal of Chemical Engineering. Publicado em: 2010-03
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8. Estudo da comunidade fitoplanctônica da lagoa facultativa do módulo III da estação de tratamento de esgotos Mangabeira (João Pessoa - PB) / Assessment of the phytoplanktonic community at the facultative pond of the module III of waste water plants of Mangabeira (João Pessoa - PB)
Facultative ponds keep a characteristic biota, as a result of its superficial area, wich permits high availability of solar energy to the water column favoring the establishment of the phytoplanktonik community. The presence of available nutrients to the autotrophic microorganisms leads to the synthesis of biomass cellular into the pond and it causes the ove
Publicado em: 2010
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9. TiO2 photocatalytic inactivation under simulated solar light of bacterial consortia in domestic wastewaters previously treated by UASB, duckweed and facultative ponds
In this work, TiO2 photocatalysis was used to disinfect domestic wastewaters previously treated by different biological treatment systems: Upward-flow Anaerobic Sludge Blanket (UASB), facultative pond, and duckweed pond. The microorganisms monitored were E. coli, total coliforms, Shigella species, and Salmonella species. Photocatalytic experiments were carri
Química Nova. Publicado em: 2010
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10. Avaliação da comunidade microbiana procarionte através de técnicas moleculares - FISH, PCR/DGGE e sequenciamento em sistemas artificiais de redução de cargas: ênfase ao estudo de lagoa de estabilização facultativa. / Prokariotic microbial community assessment by molecular techniques - FISH, PCR/DGGE and sequencing in load reduction artificial systems - enphasys on the study of facultative stabilization pond.
Microorganisms are amongst the most responsible for the conversion of sewage organic compounds and they are the key of the treatment success. The combination of two or more molecular techniques in this kind of assessment allows getting more accurate results concerning a microbial community. The facultative stabilization pond microbial community structure of
Publicado em: 2010
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11. Remoção de lodo de lagoa facultativa : avaliação quantitativa e qualitativa do lodo acumulado e seu acondicionamento em BAG / Facultative pond removal sludge : quantitative and qualitative assessment of accumulated sludge and its packing in BAG
Estudou-se o sistema de remoção de lodo de lagoa de estabilização, o desaguamento e acondicionamento do lodo pelo uso de BAG, bem como a redução da viabilidade de ovos de helmintos, coliformes, Salmonellas e teor de sólidos em função do tempo de acondicionamento. Entre várias opções para a retirada, adensamento e desaguamento do lodo de lagoa, a
Publicado em: 2010
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12. Tratamento de esgoto sanitário em sistemas alagados construídos utilizando Typha angustifolia e Phragmites australis / Sanitary sewer treatment in constructed wetlands system using Typha angustifolia and Phragmites australis
This study aimed to assess the efficiency of two vegetal species in the treatment of the sanitary sewer, in constructed wetlands system. Specifically, it aimed to evaluate the efficiency of the species Typha angustifolia (narrow-leaf cattail) and Phragmites australis (common reed), in their possible combinations, in the treatment of the sanitary sewer, in a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/08/2009