Effluents Dispersion
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Zeolite-SPION Nanocomposite for Ammonium and Heavy Metals Removal from Wastewater
Minimizing the emission of industrial effluents and realizing the recovery/extraction of key elements such as the rare earths from low concentration solutions, or during water decontamination processes, are some of the biggest challenges of modern society. Accordingly, the preparation and characterization of a low cost recyclable and reusable superparamagnet
J. Braz. Chem. Soc.. Publicado em: 2020-11
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2. STATISTICAL PROCESS CONTROL IN THE ASSESSMENT OF DRIP IRRIGATION USING WASTEWATER
ABSTRACT The aim of this study was to evaluate drip irrigation as a process, by monitoring the average flow applied by the emitter using tools of statistical quality control. Four kinds of drippers were selected, two inline labyrinth type and two online where one of the inline emitters was not self-compensating and the other, self-compensating emitter. The s
Eng. Agríc.. Publicado em: 2018-01
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3. The Use of an Atmospheric Model to Simulate the Rocket Exhaust Effluents Transport and Dispersion for the Centro de Lançamento de Alcântara
ABSTRACT: This paper introduces a new approach to represent the rocket exhaust effluents into an atmospheric dispersion model considering the trajectory and variable burning rates of a Satellite Vehicle Launcher, taking into account the buoyancy of the exhausted gases. It presents a simulation for a Satellite Vehicle Launcher flight at 12:00Z in a typical da
J. Aerosp. Technol. Manag.. Publicado em: 2017-06
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4. Soil Quality after Six Years of Paper Mill Industrial Wastewater Application
ABSTRACT The application of wastewater to irrigate soils may be an attractive option for paper mills, especially when the effluents can also provide nutrients to plants. Since there could be negative environmental effects, such activity must be preceded by a thorough evaluation of the consequences. The changes in soil quality of a Neossolo Flúvico Distrófi
Rev. Bras. Ciênc. Solo. Publicado em: 06/02/2017
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5. Kinetic and equilibrium study of biosorption of lead and copper ions by sargassum seaweed in nanocomponent and binary systems / Estudo cinético e do equilíbrio da biossorção dos íons chumbo e cobre pela macroalga Sargassum sp. em sistemas monocomponente e binário
Brown seaweeds from the genus Sargassum are widely studied for use as potential candidates for biosorption purposes, particularly in the treatment of heavy-metals contaminated effluents. The cellular structure of this seaweed presents charged molecules, such as alginic acid, able to attract and recover metal cation ions. The objective of this work was to stu
Publicado em: 2010
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6. Dynamic isotherms of dye in activated carbon
Textile industrial wastewaters have significant quantities of dyes. Adsorption processes using industrials rejects may help in the treatment of these effluents. In this context, uptake of Reactive Blue 5G dye by babassu coconut shell activated carbon was studied with upstream flow fixed-bed experiments. First, the minimum flow rate that minimizes the diffusi
Materials Research. Publicado em: 2008-09
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7. Análise crítica da utilização de modelagem matemática na avaliação da dispersão de efluentes leves no litoral da Baixada Santista ( Estado de São Paulo). / The analysis of mathematical models in the assessment of effuents dispersion in Baixada Santista coastline (State of São Paulo).
The prediction of the hydrodynamic water circulation and pollutants dispersion, mainly in coastal areas, has been a problem that engineers have been facing. This is due to the increase environmental impacts that involve coastal engineering work and management. The usage of mathematic modeling as assessment tool is necessary for these studies. The main purpos
Publicado em: 2008
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8. Ocean outfall of Santoss sewage: contribution on the sediment of fund to Al, Mg, K, Ca, Fe, Ti, Na, Si, Ba, Cu, Zn, Cr, Mn, Co, Ni e S / Emissário submarino de Santos: contribuição nos sedimentos de fundo para Al, Mg, K, Ca, Fe, Ti, Na, Si, Ba, Cu, Zn, Cr, Mn, Co, Ni e S
After the construction of the Ocean Outfall of Santoss sewage, all of Santoss and part of São Vicentes effluents started to be discarded in the Santos Bay after Preconditioning. In light of that aspect, CETESB began a monitoring control of the materials dumped through the emissary. In this dissertation sediments samples in the environment of that monitoring
Publicado em: 2008
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9. Desempenho de biomassas na adsorção de hidrocarbonetos leves em efluentes aquosos
Removal of hydrocarbons from aqueous effluents using biosorbents was investigated. The effluent was simulated by a dispersion of gasoline (simple hydrocarbons) in water. Corn-cob, wood powder, coconut mesocarp and sugar-cane bagasse were used as adsorbents and their performance verified by means of batch experiments performed in an agitated vessel. The influ
Química Nova. Publicado em: 2007-04
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10. Impacts of vinasse application on soil and effluent chemical properties / Impactos da aplicação de vinhaça sobre as propriedades químicas do solo e de seu efluente
The objective of this study was to evaluate the impacts of vinasse on soil columns effluents besides quantify ionic species in soil layers as affected by vinasse application, and its downward movement along time. Soil samples were collected at two different areas: the first one is a sugarcane field cropped during 21 years; the second one, an untouched savann
Publicado em: 2007
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11. Evolução da biodegradabilidade da matéria orgânica em um sistema de lagoas de estabilização
Waste stabilization ponds (WSP) have been widely used for sewage treatment in hot climate regions because they are economic and environmentally sustainable. In the present study a WSP complex comprising a primary facultative pond (PFP) followed by two maturation ponds (MP-1 and MP-2) was studied, in the city of Natal-RN. The main objective was to study the b
Publicado em: 2006
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12. Emissão de 14C pelas unidades I e II da Central Nuclear Almirante Álvaro Alberto (CNAAA) e seu efeito local nos níveis ambientais
14 C is a is a long-lived beta-emitting nuclide (T = 5730 years) produced naturally 1/2 14 14 14 in the upper atmosphere as a result of reactions between neutrons and stable N( N(n,p) C). 14 C as well during their routine Although in a lesser extent, nuclear power plants produce 14 operation. Since it is converted in CO and mixed throughout the atmosphere, i
Publicado em: 2006