Wastes Reduction
Mostrando 1-12 de 75 artigos, teses e dissertações.
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1. Evaluation of the Effect of the Incorporation of Blends of Fuel and Fluxing Wastes in Red Clay Ceramics
The clay samples endure the incorporation of industrial and urban wastes, which do not cause large variations in their properties if added in controlled quantities. Wastes can be classified as fuel, fluxing and property affecting wastes. The fuel wastes usually have a high amount of organic matter, that when heated cause exothermic reactions, releasing heat
Mat. Res.. Publicado em: 09/12/2019
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2. INNOVATION SYSTEM IN AIR TRANSPORT MANAGEMENT
Abstract Identifying previous research subjects on innovation management in air transport provides not only updated references on new technologies in this industry, but also indicates which areas need to be prioritized in future research. A systematic literature review of publications in this field over the past decade, from 2005 to 2015, including 2016 publ
JISTEM J.Inf.Syst. Technol. Manag.. Publicado em: 02/12/2019
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3. Effects of pH, Temperature and Agitation on the Decolourisation of Dyes by Laccase-Containing Enzyme Preparation from Pleurotus sajor-caju
(1) Background: In this study, the effects of different pH values (2.4, 3.2, 4.4 and 5.0), temperatures (30, 35, 40, 45 and 50°C) and agitation (100 rpm) on the enzymatic decolourisation of twenty-two dyes belonging to the chromophore groups anthraquinone, azo and triphenylmethane were assessed. (2) Methods: In all conditions, it was used a crude enzyme bro
Braz. arch. biol. technol.. Publicado em: 13/06/2019
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4. Microstructural, thermochemistry and mechanical evaluation of self-reducing pellets using electric arc furnace (EAF) dust containing zinc for Waelz process
ABSTRACT The increment of recycling of steel using electric arc furnace and the tendency to coat of steel products with zinc, in order to prevent corrosion, has increased the proportion of galvanized scrap used worldwide in the recent years. Approximately 10 to 20 Kg/t of cast steel is generated in casting arcs. These collected dusts electric arc furnace (EA
Matéria (Rio J.). Publicado em: 19/07/2018
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5. COMPOSTING TIME REDUCTION OF AGRO-INDUSTRIAL WASTES
ABSTRACT The agro-industrialization of animal products has led to a significant waste generation, which has been stabilized by composting process in specialized plants. Waste stabilization time on composting depends on the handling used. 12 treatments were performed, three frequency turnings combined with two environmental conditions (with and without covera
Eng. Agríc.. Publicado em: 2016-12
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6. Simultaneous production of amylases and proteases by Bacillus subtilis in brewery wastes
ABSTRACT The simultaneous production of amylase (AA) and protease (PA) activity by Bacillus subtilis UO-01 in brewery wastes was studied by combining the response surface methodology with the kinetic study of the process. The optimum conditions (T = 36.0 °C and pH = 6.8) for high biomass production (0.92 g/L) were similar to the conditions (T = 36.8 °C and
Braz. J. Microbiol.. Publicado em: 2016-09
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7. Filamentous fungi isolated from Brazilian semiarid tolerant to metallurgical industry wastes: an ex situ evaluation
The purpose of this study was to assess the impact of metallurgical industry wastes on the semiarid soil microbiota using physico-chemical and microbiological parameters, highlighting the filamentous fungi assembly. Soil samples were collected in an area of industrial waste deposit contaminated with lead and mixed with natural soil (control soil) in seven di
Braz. arch. biol. technol.. Publicado em: 2014-10
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8. Superando el síndrome del "enemigo externo" en una firma autopartista a través del kaizen
Two problems in an autoparts firm are initially attributed to uncontrollable external factors ("external enemy" syndrome). This situation motivates the design of a methodology to guide kaizen event practices, supported by kaizen philosophy and methodology. The methodology consist of three steps: the first step, initiate, is designed to acquire employee commi
Prod.. Publicado em: 03/09/2013
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9. Percepção dos trabalhadores sobre as mudanças na organização do trabalho decorrentes da adoção da produção enxuta
The adoption and the organization of a new a production system reproduces changes not only to the work organization, but for people involved in this environment. From the second half of the twentieth century, in answer to the depletion of mass production system, lean production system comes at Toyota, the company localized in Japan. This production model has
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/11/2012
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10. Projeto industrial para aeração automática de leiras de compostagem orgânica / Industrial project for automated aeretion of organic composting piles
Composting is a safety environmental alternative to reuse and treat organic wastes produced by human-beings. Although decomposition naturally happens, the handling of some factors, such as oxygen level, temperature, moisture content and pH, can alter the process speed, accelerating microbial activity. Aeration is a crucial practice during the composting proc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2012
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11. Recuperação de compostos de iodo de reagentes e soluções laboratoriais
This work presents simple routes to recover iodine compounds from oxidized laboratory chemicals and aqueous solutions (HI and KI) used in laboratory chemistry classes. These routes are based on the oxidation of iodide ions (I-) to iodine (I2) by an oxidant (H2O2) or reduction of oxidized iodine by red phosphorus or hydrazine. Both routes presented high yield
Química Nova. Publicado em: 2012
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12. Aplicações da celulose de palha de cana-de-açúcar: obtenção de derivados partindo de celulose branqueada e de biocompósitos com poliuretana obtida a partir de óleo de mamona (Ricinus communis L.) / Applications of sugarcane straw cellulose: obtainment of derivatives from bleached cellulose and biocomposites with polyurethane obtained from castor oil (Ricinus communis L.)
The sugarcane processing generates various agricultural byproducts such as bagasse and straw, which is considered one of the main waste generated due to the mechanization of the harvest in Brazil. Thus, the availability and composition of sugarcane straw have driven a great effort to develop technologies that provide its effective utilization. This study aim
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/04/2011