Water Minimization
Mostrando 1-12 de 54 artigos, teses e dissertações.
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1. Incorporação de lodo de estação de tratamento de água (ETA) como agregado miúdo em concretos: avaliação das propriedades físico-mecânicas
RESUMO O presente trabalho tem como objetivo principal investigar a potencialidade do emprego de lodo de estação de tratamento de água (ETA) moído e calcinado em substituição ao agregado miúdo em concretos de cimento Portland, assim evitando o descarte em aterros sanitários e se tornando uma possível alternativa de reutiliza-ção desse material. Fo
Matéria (Rio J.). Publicado em: 13/06/2019
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2. Incorporação de lodo de estação de tratamento de água (ETA) como agregado miúdo em concretos: avaliação das propriedades físico-mecânicas
RESUMO O presente trabalho tem como objetivo principal investigar a potencialidade do emprego de lodo de estação de tratamento de água (ETA) moído e calcinado em substituição ao agregado miúdo em concretos de cimento Portland, assim evitando o descarte em aterros sanitários e se tornando uma possível alternativa de reutilização desse material. For
Matéria (Rio J.). Publicado em: 20/05/2019
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3. Entropy Generation Minimization Analysis of Active Magnetic Regenerators
Abstract A performance assessment of active magnetocaloric regenerators using entropy generation minimization is presented. The model consists of the Brinkman-Forchheimer equation to describe the fluid flow and coupled energy equations for the fluid and solid phases. Entropy generation contributions due to axial heat conduction, fluid friction and interstiti
An. Acad. Bras. Ciênc.. Publicado em: 2017-05
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4. Cassava processing wastewater as a platform for third generation biodiesel production
ABSTRACT This study aimed to evaluate third generation biodiesel production by microalgae Phormidium autumnale using cassava processing wastewater as a platform. Experiments were performed in a heterotrophic bubble column bioreactor. The study focused on the evaluation of the bioreactor (batch and fed-batch) of different operational modes and the analysis of
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-10
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5. Agronomic parameters assessment in hydroponic tomato crop
In this study we present the results of a comparative analysis of nutrient solution (NS) recycling and non-recycling treatments in hydroponic tomato crop. The established aims are to evaluate water consumption, pH and conductivity variation along the productive cycle in both treatments, to establish the differences in fruit yield and to assess the viability
Hortic. Bras.. Publicado em: 2014-12
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6. Utilization of minimum quantity lubrication (MQL) with water in CBN grinding of steel
The use of cutting fluids is fundamental to machining processes, mainly when it comes to high heat generation, which is the case of grinding. Thus, lubrication and cooling provided by cutting fluids improve the final quality of the workpiece. However, cutting fluid usage provide some drawbacks concerning environmental, costs and health issues. Therefore, new
Mat. Res.. Publicado em: 08/10/2013
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7. Microstructural and topographic characterization of concrete protected by acrylic paint
Concrete structures must be designed and constructed so as to resist the conditions established in the project design and suffer no deterioration for many years. In highly aggressive environments, in addition to the minimum layer covering the framework, the concrete must receive a protective coating. In this work, the efficiency of acrylic paint as a protect
Mat. Res.. Publicado em: 22/03/2013
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8. Tratamento eletroquÃmico de esgotos sanitÃrios / Electrochemical Treatment for Municipal Sewage
Basic sanitation is a public service with the most deficiency in infrastructure in Brazil, in particular the service of collection and treatment of sewage followed by collection services and waste treatment. The scenary of sanitation in Brazil, especially in the big cities, it becomes increasingly costly and challenging because the population is increasingly
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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9. A reinserção dos cursos de água em áreas urbanas. Estudo de caso: Microbacia do Córrego Jataí - Uberlândia /MG / The reinsertion of the watercourses in urban areas. Case study: the Stream watershed Jataí - Uberlândia/MG
The main objective of this work is to promote the reinsertion of urban water in the context of physical and territorial planning, in the cities, through the study of the watershed of Jataí stream in Uberlândia-MG. Pursuiting the rebalancing of the waters with the urban environment, this work promote the connectivity and physical strengthening of the relati
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/01/2012
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10. Principais técnicas de preparo de amostra para a determinação de resíduos de agrotóxicos em água por cromatografia líquida com detecção por arranjo de diodos e por espectrometria de massas
The determination of pesticide residues in water samples by Liquid Chromatography require sample preparation for extraction and enrichment of the analytes with the minimization of interferences to achieve adequate detection limits. The Solid Phase Extraction (SPE), Solid Phase Microextraction (SPME), Stir Bar Sorptive Extraction (SBSE) and Dispersive Liquid-
Química Nova. Publicado em: 2011-09
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11. Cibersegurança em sistemas de automação em plantas de tratamento de água. / Cibersecurity in automation systems in water treatment plants.
Currently, information security is a constant concern of the several institutions and countries that use computing resources for communication and service offering purposes. Protection methods and countermeasures for traditional networks such as firewalls and intrusion detectors are known and ordinarily used. The same goes for control systems and data acquis
Publicado em: 2010
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12. MODELO HIDRÁULICO BASEADO NO MÉTODO DAS CARACTERÍSTICAS E ALGORITMOS GENÉTICOS PARA OTIMIZAÇÃO DA OPERAÇÃO DE REDES DE ABASTECIMENTO DE ÁGUA E DE ESTAÇÕES DE BOMBEAMENTO
A hydraulic model was developed for simulation of water supply networks using the Method of Characteristics (MOC), introducing new features to the CALHIDREDMT model, proposed by Righetto (1994). The model uses the concept of pseudo-transient, using a fictitious value for the wave celerity. Simulations were performed in networks equipped with reservoirs, tank
Publicado em: 2010