Water Outflow
Mostrando 1-12 de 68 artigos, teses e dissertações.
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1. Plumas em escoamento uniforme com estratificação de duas camadas
RESUMO Plumas ocorrem quando um fluido é descarregado em outro fluido com densidade diferente, como poluentes na atmosfera. Neste trabalho, desenvolveu-se um estudo experimental em um tanque de água e modelagem matemática usando a abordagem integral com o intuito de investigar o escoamento gerado por plumas salinas em escoamento uniforme e com estratifica
Eng. Sanit. Ambient.. Publicado em: 08/04/2019
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2. Floating Aquatic Macrophytes Decrease the Methane Concentration in the Water Column of a Tropical Coastal Lagoon: Implications for Methane Oxidation and Emission
ABSTRACT In wetlands, the knowledge accumulated on the role of aquatic plants in the methane cycle focused on emergent macrophytes, to the detriment of other typologies. Herein, we evaluated whether the free-floating macrophyte Salvinia auriculata Aubl. and the floating-leaved macrophyte Eichhornia azurea (Sw.) Kunth. decrease the water column methane concen
Braz. arch. biol. technol.. Publicado em: 18/05/2017
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3. Simulation of the solidification in a channel of a water-cooled glass flow
A computer simulation study of a laminar steady-state glass flow that exits from a channel cooled with water is reported. The simulations are carried out in a two-dimensional, Cartesian channel with a backward-facing step for three different angles of the step and different glass outflow velocities. We studied the interaction of the fluid dynamics, phase cha
Braz. J. Chem. Eng.. Publicado em: 2014-12
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4. Estudo da aplicação do resíduo de decantador de ETA como auxiliar de floculação no tratamento de água / Study of the application of decanters waste of WTP as an aid of flocculation of water treatment
The residue generated in Water Treatment Plant (WTP) are derived from different stages of water treatment, especially the discharge of decanters. The most common practice in Brazil is the residue disposal directly into rivers, causing negative impacts to the environment. In general, the WTP have difficulties in managing the residue because the high costs of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/06/2011
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5. Desempenho de tanques vegetados em um ecossistema engenheirado para tratamento descentralizado de esgotos domiciliares na Ilha Grande, RJ / Performance of vegetated tanks in an engineered ecosystem for decentralized treatment of sewage in Grande Island, RJ
The lack of appropriate infrastructure for sewage collection and treatment affects several communities living under unhealthy conditions in coastal areas and in insular systems in Rio de Janeiro State. The objective of this study was to assess the performance of an engineering ecosystem for the descentralized treatment of domestic wastewater located at the C
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2011
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6. ANÃLISE TÃCNICO-ECONÃMICA DA RECUPERAÃÃO DE UM SOLO SÃDICO NO PERÃMETRO IRRIGADO CURU-PENTECOSTE-CE / Techno-economical analysis of the reclamation of a sodic soil in the Irrigated Perimeter Curu-Pentecoste-CE.
In the semi-arid part of Northeastern Brazil, the highest incidences of salinized areas are observed in land subjected to intense irrigated cultivation, in the âPerÃmetros Irrigadosâ (irrigated perimeters), particularly those where is used the surface method. The experiment was performed in the âNÃcleo Dâ (D Core) of the âPerÃmetro Irrigado Curu-Pent
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/04/2010
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7. Gestão e planejamento dos recursos hídricos: regionalização de vazões e proposição de índices para identificação de conflitos pelo uso da água / Management and planning of water resources: outflow regionalizing and proposition of indices for spotting water use conflicts
Objetivou-se, neste trabalho, fornecer subsídios à gestão e ao planejamento dos recursos hídricos ao comparar diferentes metodologias de regionalização de vazões para a estimativa da vazão mínima com sete dias de duração e período de retorno de 10 anos (Q7,10) e da vazão média de longa duração (Qmld); ao verificar a influência da utilizaçã
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/02/2010
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8. Qualidade de água de nascentes como reflexo do manejo do uso e ocupação do solo e conservação da mata ciliar, no município de Ouro Branco, MG
This study was carried through in five selected microbasins of the city of Ouro Branco, MG, located in the region of the High Paraopeba, with the objectives of: The physical characterization of the microbasins with different states of conservation and uses of the ground, to evaluate the quality of the water and to classify their springs. The description of t
Publicado em: 2010
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9. 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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10. Correlation between central corneal thickness and intraocular pressure peak and fluctuation during the water drinking test in glaucoma patients
OBJECTIVE: To investigate the correlation between central corneal thickness and outflow facility assessed by intraocular pressure peak and fluctuation during the water drinking test. METHODS: Fifty-five newly diagnosed primary open-angle glaucoma patients submitted to central corneal thickness measurements and water drinking test were enrolled in this retros
Clinics. Publicado em: 2010
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11. Rheological analysis of water clay compositions in order to investigate mudflows developing in canals
This paper describes the physical and rheological property mixtures of water and kaolinitic clay that form the interstitial fluid found in muds from inundations or torrential lava. Several compositions with varying volume concentrations (Cv) were tested in a high-precision R/S rheometer (shear rate x shear stress). The rheometric parameters such as critical
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-03
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12. Reúso e minimização do consumo de água em indústrias químicas utilizando a regeneração diferenciada de contaminantes
Currently there is a great demand for tools that allow the analysis of water nets in a practical and objective way. In the modern scenes the chemical, petrochemical, textile and of paper and cellulose industries consume great amounts of water and need to make it in more rational form, because that the water becomes a scarcer natural resource. The methodology
Publicado em: 2009