Hazardous Chemical Waste
Mostrando 1-12 de 20 artigos, teses e dissertações.
-
1. Optical sorting technology for waste management from the Boukhadra iron ore mine (NE Algeria)
Abstract Mining processes in the iron ore mine of Boukhadra, Tebessa (NE Algeria) generated thousands of tons of mining wastes every year, which represents a real threat to the environment, leading to hazardous effects for the resident population of the region. The aim of this study is the selective sorting of the Boukhadra mining wastes for valorization. Th
REM - International Engineering Journal. Publicado em: 2022
-
2. Sustainable and Reusable Sulfonic Acid-Functionalized Task-Specific Ionic Liquid Catalysts for Multicomponent Reactions. A Review
Improvements in Sustainable Organic Synthesis are usually related to the investigation of less hazardous, non-corrosive and renewable materials, as well as waste prevention, energy efficiency, solvent-free reactions, and the development of efficient reusable catalysts. In this context, multicomponent reactions emerged as important strategies for the rapid an
Journal of the Brazilian Chemical Society. Publicado em: 2022
-
3. Carbothermic reduction of Electric Arc Furnace Dust via thermogravimetry
Abstract Electric Arc Furnace Dust (EAFD) is a solid waste originated from electric steelmaking furnaces. Currently, according to some authors, there is an estimated generation of 15 to 25 kg of dust per ton of steel produced. The formation of the dust is related to the following steps of the process: furnace charge, metal volatilization, iron vaporization u
REM, Int. Eng. J.. Publicado em: 2018-07
-
4. Study of mechanical properties and durability of magnesium phosphate cement matrix containing grinding dust
The acid-base cements are materials developed by means of reactions between an acid component and another basic one. This type cement belongs to the family of the so called "chemically bonded phosphate ceramics" (CBPCs), new types of inorganic materials that have special physico-chemical properties and that, in contrast to most advanced ceramics, are made by
Mat. Res.. Publicado em: 02/07/2013
-
5. Gerenciamento de resíduos químicos de laboratórios: estudo de caso do Instituto de Química da Universidade do Estado do Rio de Janeiro. / Management of chemical wastes in laboratories: study of a case in the Chemical Institute UERJ.
Instituições de Ensino e Pesquisa possuem um papel fundamental na formação de seus profissionais considerando a ciência, tecnologia e o conhecimento que afetam toda a sociedade. A falta de um programa de gestão de resíduos, na maioria das instituições de ensino e pesquisa do país, tem levado, com certa frequência, a um descarte pouco responsável
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2012
-
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
-
7. 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
-
8. Management of hazardous chemical wastes by the nursing team of a school hospital / Gerenciamento de resíduos químicos perigosos manuseados pela enfermagem de um hospital universitário
O presente estudo tratou do Gerenciamento de Resíduos Químicos Perigosos (GRQP) manuseados pelos trabalhadores de enfermagem de um hospital universitário.Teve como objetivos identificar os produtos de uso médico-hospitalar, contendo substâncias com potencial para geração de resíduos químicos; verificar as informações existentes sobre os produtos q
Publicado em: 2009
-
9. Gerenciamento de resíduos químicos em ambientes hospitalares: necessidades e dificuldades - estudo de caso: Hospital Universitário Federal localizado no Estado do Rio de Janeiro. / Management of chemical waste from hospitals: necessities and difficulties; study case of federal university hospital located in the State of Rio de Janeiro
O tema do presente estudo é o gerenciamento de resíduos químicos em ambientes hospitalares. Os resíduos químicos são gerados nas atividades auxiliares dos estabelecimentos prestadores de serviços de saúde, tais como hospitais, laboratórios, serviços de diagnóstico e tratamento, centros de saúde, clínicas, institutos de medicina legal e outros. D
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/04/2007
-
10. TRATAMENTO DE REVESTIMENTOS GASTOS DE CUBA ELETROLÍTICA DA INDÚSTRIA DE ALUMÍNIO / TREATMENT OF SPENT POTLINER FROM ALUMINIUM INDUSTRY
Spent Potliner (SPL) is a residue from the primary aluminium production. It is indicated as the major environmental problem in the aluminum industry. SPL is formed by two fractions: Carbonaceous and refractory. According to Brazilian Standards NBR 10004, the SPL is listed as hazardous waste (K088) because it contains high levels of cyanides (complex). The pr
Publicado em: 2007
-
11. Lead and zinc selective precipitation from leach electric arc furnace dust solutions
Electric-arc furnace (EAF) dust is considered a hazardous industrial waste. In this work, chemical and mineralogical investigations of EAF dust from Siderúrgica Rio-Grandense (RS, Brazil) were performed. The elements aluminum, calcium, lead, cadmium, chromium, magnesium, manganese, nickel, potassium, silicon, sodium, tin, iron, zinc, sulphur, oxygen, and ca
Matéria (Rio de Janeiro). Publicado em: 2007
-
12. "Desenvolvimento de eletrodos de troca iônica eletroquímica para o tratamento de rejeitos contendo íons Cromo ou Césio" / DEVELOPMENT OF ELECTROCHEMICAL ION EXCHANGE ELECTRODES FOR THE TREATMENT OF WASTES CONTAINING CHROMIUM OR CESIUM IONS
Nowadays, environmental preservation using technologies that do not attack it, generating non-toxic residues and reduced volumes, has been discussed. Hazardous effluents, containing metals, as chromium, have been poured in the soils and rivers, degrading the water. Not different are the problems originated from some nuclear activities that generate wastes, a
Publicado em: 2006