Reservoirs Sedimentation
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. The Cogollo Group and the oceanic anoxic events 1a and 1b, Maracaibo basin, Venezuela
ABSTRACTCarbonates of Cogollo Group (Apón, Lisure and Maraca formations) constitute the broader calcareous platform system originated during Aptian and Albian of Cretaceous in north-western South America, Maracaibo Basin, Venezuela. On the shallow shelf, a variety of calcareous sedimentary facies were deposited during marine transgressive and regressive cyc
Braz. J. Geol.. Publicado em: 2015-08
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2. EFFECT OF WATER CONTENT, TEMPERATURE AND AVERAGE DROPLET SIZE ON THE SETTLING VELOCITY OF WATER-IN-OIL EMULSIONS
AbstractWater-in-oil (W/O) emulsions are complex mixtures generally found in crude oil production in reservoirs and processing equipment. Sedimentation studies of water-oil emulsions enable the analysis of the fluid dynamic behavior concerning separation of this system composed of two immiscible liquids. Gravitational settling was evaluated in this article f
Braz. J. Chem. Eng.. Publicado em: 2015-06
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3. Sedimentação de nutrientes e material particulado em reservatório sob influência de atividades de piscicultura no semiárido do Rio Grande do Norte
Nutrient levels in water reservoirs have been increasing over the years worldwide and fish farming is one of the activities with the potential to cause negative impacts on these environments. Thus, the sedimentation of the main nutrients was evaluated in a reservoir as well as the contribution of aquaculture in raising these rates. The results indicated a si
Quím. Nova. Publicado em: 2014
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4. Qualitative improvements in the modeling of bathymetric survey in reservoirs through computational tool \"CAV-NH\" / Melhorias qualitativas na modelagem de levantamentos batimétricos em reservatórios por meio da ferramenta computacional \"CAV-NH\"
Freshwater is a finite mineral resource and essential for sustaining life on earth. For proper water resource management in the watershed, it is important to know the reservoirs Elevation-Area-Volume (EAV) curve. Energy companies and government agencies use this curve for their decision-making, considering the multiple uses of the reservoirs. Due to the rese
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/08/2012
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5. Limnological aspects of Little AÃudagem in Semiarid: Case Study of Dams Settlement May 25, Ce-Madalena / Aspectos limnolÃgicos da pequena aÃudagem no semiÃrido: estudo de caso dos aÃudes do Assentamento 25 de Maio, Madalena-Ce
The studies for small reservoirs in the semiarid northeast are still scarce, mainly in relation to water quality. This research aimed to discover the dynamic processes that occur in small reservoirs, to evaluate the multiple uses, the trophic state and water quality in small reservoirs representing the settlement on May 25. Carried out the systematic monitor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/01/2011
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6. Modelo de facies de um sistema profundo de rampa submarina (Formação Punta Negra), Devoniano, Pre-Cordilheira Argentina / Facies model of a deep-water ramp system (Punta Negra Formation) Devonian, Argentine Precordillera
A Formação Punta Negra (Meso- Neodevoniano da Pré-Cordilheira Argentina) consiste em uma espessa sucessão de depósitos siliciclásticos de água profunda. Esta unidade aflora por cerca de 300 km em direção N-S nas províncias de San Juan, Mendoza e La Rioja. Uma detalhada análise sedimentológica permitiu identificar seis litofácies depositadas pela
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2009
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7. Análise geoambiental do delta do assoreamento do reservatório do tanque grande, Guarulhos, SP.
A bacia Tanque Grande, localizada na porção norte do município de Guarulhos (SP), constitui um dos reservatórios de abastecimento da população do município, fornecendo água a 3,2% dos munícipes. Mesmo sendo considerada como Área de Proteção de Mananciais por Lei Estadual desde a década de 1970, essa microbacia tem sofrido pressões inerentes à
Publicado em: 2009
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8. Sediment distribution model in marine shelf area : a cambrian example from the Sergipano Belt (Lagarto Formation, Estancia Domain, Sergipe) / Modelo de distribuição de sedimento em area de plataforma marinha : um exemplo do cambriano da faixa sergipana (Formação Lagarto, Dominio Estancia, Sergipe)
Coastal areas of wave-influenced tidal plains are not well known in recent and ancient depositional systems. The Lagarto Formation represents one of these mixed depositional systems influenced both by tide and wave activities. This work describes the sediments in this system, interprets the depositional processes and defines a distributional model of sedimen
Publicado em: 2008
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9. Padrões limnológicos e do fitoplâncton nas fases de enchimento e estabilização dos reservatórios do APM Manso e AHE Jauru (Estado de Mato Grosso)
This thesis was carried out during the filling and stabilization phases of the reservoirs of APM Manso (Dec/99-Apr/03) and AHE Jauru (Oct/02-Apr/04), in the state of Mato Grosso. It mostly aimed to identify limnological patterns similar to both reservoirs; analyze the influences of river basin, residence time and decomposition process on these patterns; veri
Publicado em: 2007
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10. Phosphorus removal in effluent of wastewater treatment plant with water treatment residuals (WTR). / Remoção de fósforo de efluentes de estações de tratamento biológico de esgotos utlizando lodo de estação de tratamento de água.
Phosphorus is considered as the main responsible for the nutritional enrichment of reservoirs of public drinking water supplies, because eutrophication process has resulted in toxic algae blooms, and therefore its removal has a great significance since these toxins represent a public health risk and environment. The aim of this research work was to evaluate
Publicado em: 2006
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11. Sedimentation of Free and Attached Cryptosporidium Oocysts and Giardia Cysts in Water
Experimental analysis of the sedimentation velocity of Cryptosporidium parvum oocysts and Giardia lamblia cysts was compared with mathematical description of their sedimentation velocities by using measurements of (oo)cyst size and density and the density and viscosity of the sedimentation medium to determine if the sedimentation kinetics of freely suspended
American Society for Microbiology.
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12. Removal of enteric viruses from surface water at eight waterworks in The Netherlands.
Eight waterworks in The Netherlands, which use surface water as their raw water source, were sampled repeatedly between November 1978 and June 1981. At five waterworks , 30 of 45 samples of raw water contained viruses. Of 55 samples of partially purified water, 11 were virus positive, including 8 after coagulation, sedimentation, and rapid sand filtration, 2