Hazardous Products
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. Effects of addition of engineered ZnO nanoparticles on the stability of colloidal suspensions containing TiO2 interacting with sandy soil
Abstract The stability of colloidal suspensions of engineered nanoparticles in the environment is of great interest for the risk assessment and treatment of hazardous materials. The relevance of this study is due to the evidence that engineered nanoparticles have been produced and used in commercial products in large scale, especially ZnO and TiO2, which are
REM, Int. Eng. J.. Publicado em: 2020-06
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2. How much do we know about the groundwater quality and its impact on Brazilian society today?
Resumo As águas subterrâneas são um recurso imprescindível para a sociedade e o meio ambiente no Brasil. Mais de 557 m3/s (17.5 km3/a) são extraídos através de 2.5 milhões de poços para atender a demanda nas cidades e no campo, gerando uma economia de R$ 56 bilhões ao ano (US$ 14 bilhões/ano). O aquífero tem função impar no ciclo hidrológico,
Acta Limnol. Bras.. Publicado em: 04/11/2019
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3. 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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4. Occupational exposure of workers to pesticides: Toxicogenetics and susceptibility gene polymorphisms
Farm workers are often exposed to pesticides, which are products belonging to a specific chemical group that affects the health of agricultural workers and is mostly recognized as genotoxic and carcinogenic. The exposure of workers from Piauí, Brazil, to these hazardous chemicals was assessed and cytogenetic alterations were evaluated using the buccal micro
Genet. Mol. Biol.. Publicado em: 2015-09
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5. ACIDENTES COM PRODUTOS PERIGOSOS NO ESTADO DE GOIÁS EVOLUÇÃO E CAUSAS
Acidentes com materiais perigosos podem trazer conseqüências que colocam em risco as gerações presentes no momento do acidente, bem como as futuras. Ocorrências com estes produtos de um modo geral vêm aumentando em todo o país e com isso surge a preocupação em se conhecer os principais produtos envolvidos nestes acidentes, os riscos inerentes a eles
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2011
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6. Potential use of natural red mud as pozzolan for Portland cement
Red mud, the main waste generated in aluminum and alumina production by the Bayer process, is considered hazardous due to its high pH, according to the Brazilian standard NBR 10004/2004, and worldwide generation of this waste exceeds 117 million tons/year. In this work, non-calcined red mud was used, thus requiring less energy and time and reducing costs, wh
Materials Research. Publicado em: 26/01/2011
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7. âInfluÃncia da adiÃÃo de cargas inorgÃnicas no desempenho de produtos refratÃrios obtidos a partir de borras de alumÃnioâ / âInfluence of addition of inorganic fillers on the performance of refractory products made from aluminum sludgeâ
ABSTRACT White dross is a reject generated during aluminium production. It contains several oxides that can be useful to the refractories and cement industries. However, white dross can be hazardous both to human health and the environment. In this work, white dross was evaluated as a prospective raw material for the production of refractories. For this purp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/11/2010
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8. GestÃo e caracterizaÃÃo dos resÃduos sÃlidos da Lubnor/PETROBRAS: estudo de caso / Management and characterization os solid waste Lubnor/PETROBRAS: a case study
The situation of solid waste in Brazil is worrying, especially with regard to final disposal, as the increase in the wasteâs generation was not followed by a growth of infrastructure. The environmental issue, with the onset and worsening of environmental problems become more important to humans. Most of these problems is due to industrial waste origin, as m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/08/2009
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9. Ergonomic evaluation of operations in poultry production systems / Avaliação ergonômica em operações do sistema produtivo de carne de frango
Based on the importance of poultry production for the Brazilian economy and based on current demands of domestic and foreign markets with respect to production and processing of chicken meat, several aspects should be improved in the production chain in order to provide increased product quality with particular attention to safe working conditions for employ
Publicado em: 2009
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10. GLASS AND GLASS-CERAMICS WITH HIGH METAL CONCENTRATION OF FROM INDUSTRIAL WASTES / Vidros e vitrocerâmicos com alta concentração de metais obtidos a partir de resíduos industriais
The reuse of industrial waste materials is considered as an important source of raw-materials to be employed at new products. However proper criteria is needed in order to obtain vitreous materials from industrial solid wastes like solid galvanic waste (metallurgical industry) as main raw material. Ajusting the composition silica fine powder (ceramic industr
Publicado em: 2008
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11. Uma nova abordagem para a avaliação de políticas de gestão de resíduos perigosos: análise da eficácia dinâmica estendida
This dissertation proposes a new public policy evaluation criteria adequate to hazardous waste management: the Extended Dynamic Efficacy EDE- that combines efficacy, compliance behavior and maximum effort incentive to promote technological innovations, able to reduce economic and social costs. The adopted theorical framework focuses economic management conce
Publicado em: 2006
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12. Acidentes com transporte rodoviario de produtos perigosos : analise e aplicação de modelo conceitual georreferenciado para avaliação de risco ambiental no minicipio de Campinas- SP / Highway transportation of hazardous materials accidents : characteristics and use of a conceptual model for analyzing environmental risk at Campinas, São Paulo State, Brazil
Highway accidents involving a vehicle transporting hazardous goods may cause extensive material, human and mainly environmental damage. Most of the areas crossed by highways are environmentally vulnerable due to the presence of creeks and rivers, different land use and possibility of the ground water being reached by the transported products. The county of C
Publicado em: 2006