Environmental Remediation
Mostrando 13-24 de 71 artigos, teses e dissertações.
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13. A segurança de pacientes na administração de medicamentos em uma unidade de terapia intensiva de um hospital geral do interior paulista: a abordagem restaurativa em saúde / Patients safety in the medication administration at an intensive care unit in a general hospital in the São Paulo State: a restorative approach in healthcare
Os atuais serviços de saúde tornaram-se ambientes complexos e vulneráveis, fazendo-nos repensar acerca da necessidade de simplificar os processos de trabalho de modo a torná-los mais éticos e seguros. Os objetivos do estudo foram analisar o sistema de medicação e os processos de preparo e de administração de medicamentos de uma UTI, à luz da aborda
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/08/2011
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14. Caracterização e remediação de passivos ambientais em empreendimentos energéticos / CHARACTERIZATION AND REMEDIATION OF ENVIRONMENTAL LIABILITIES DEVELOPMENTS IN ENERGY
Este trabalho buscou primeiramente caracterizar passivos ambientais em empreendimentos energéticos, em especial nos de armazenamento de energia. Para isto, avaliou-se as atividades potenciais de contaminação em empreendimentos com armazenamento de energia, em qualquer uma de suas formas (energia eletroquímica, elétrica, mecânica, cinética, hidráulica
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/06/2011
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15. RemoÃÃo de BTEX em SoluÃÃo Aquosa por AdsorÃÃo usando ZeÃlita SintÃtica Modificada. / Removal of BTEX in aqueous solution by adsorption using synthetic zeolite modified.
BTEX (benzene, toluene, ethylbenzene and xylenes) are organic compounds of particular concern due to their toxicity. BTEX occur in the environment as products of incomplete oxidation of fossil fuels, thus polluting the atmosphere. Also, the disposal of industrial effluents, oil spills, and fuels leaks at gas stations are sources of BTEX contamination in soil
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/04/2011
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16. Remediation of soils contaminated by diesel fuel using a system of washing with microemulsion / Remediação de solos contaminados com óleo diesel utilizando um sistema de lavagem com microemulsão
The underground reservoirs of fuel retailing system represent an environmental threat, because once in bad conservation, these tanks allow fuel leakage and infiltration. For soil contaminated with fuel, such as diesel oil, the present study introduces the microemulsion systems used by the method of washing. In tests carried out in column with a sample of san
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
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17. Electrocatalysis in wastewater treatment: recent mechanism advances
Over 50 years, several scientists and industries have developed new alternatives for wastewater treatment and remediation. Recently, electrochemical technology has been largely developed mainly because of its versatility and environmental compatibility. Scientific contributions about role of the electrode material have allowed determining that the influence
Química Nova. Publicado em: 2011
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18. NANOCOMPÓSITOS BASEADOS EM QUANTUM DOTS DE CdS E CdS:Cu SUPORTADOS EM MERCAPTOPROPILSÍLICA:síntese, caracterização e aplicação em fotocatálise. / NANOCOMPOSITES BASED ON CdS AND CdS:Cu QUANTUM DOTS SUPPORTED ON MERCAPTOPROPYL-SILICA: synthesis, characterization and application in photocatalysis.
Textile dyes and other commercial dyestuffs have become a focus of environmental remediation efforts in the last few years. Considerable attention has been expended recently on the photocatalytic oxidative degradation of colored contaminants in waste water over semiconductor surfaces. In this work, we evaluated the photocatalytic activities of nanocomposites
Publicado em: 2011
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19. Bioemulsifier production by Microbacterium sp. strains isolated from mangrove and their application to remove cadmiun and zinc from hazardous industrial residue
The contamination of ecosystems with heavy metals is an important issue in current world and remediation technologies should be in according to environmental sustainability concept. Bioemulsifier are promising agents to be used in metal removal and could be effective to many applications in environmental industries. The aims of this work was screening the po
Brazilian Journal of Microbiology. Publicado em: 2010-03
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20. Superfosfato triplo, lama vermelha e zeólitas para remediação de metais pesados em solo contaminado / Remediation of contaminated soil with heavy metal using triple superphosphate, red mud and zeolites
Due to the heavy metal persistence in soils, the contamination by these elements is considered permanent and might result in great impact causing a degradation of the chemical and biological properties of the soil. Stabilization techniques have been used as an efficient tool for the remediation of soils that are contaminated by heavy metals, and they show al
Publicado em: 2010
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21. Recuperação hidrometalúrgica de metais da drenagem ácida de minas por precipitação seletiva
Acid mine drainage (AMD) is an important water pollution problem in coal production. The active treatment of AMD involves the addition of alkaline reagents to increase the pH and precipitate the dissolved metals as hydroxides. Although active treatment can provide effective remediation, it has the disadvantages of high operational costs and problems related
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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22. Adaptive and cross-protective responses against cadmium and zinc toxicity in cadmium-resistant bacterium isolated from a zinc mine
Cadmium (Cd) is a major environmental hazard, which usually is detected in its ionic form of Cd2+. It also causes adverse toxic effects on human health and other living organisms. Cd-resistant bacteria were isolated from Cd-contaminated soils. One isolate, TAK1, was highly resistance level to Cd toxicity. TAK1 was isolated from soil contaminated with a high
Brazilian Journal of Microbiology. Publicado em: 2009-12
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23. Sintetização, caracterização e aplicação do ferro metálico nanoparticulado na redução de compostos organoclorados para a recuperação ambiental / Synthesizing, characterization and application of nanoscale iron particles to dehalogenation of organic compounds for environmental remediation
The objective of this work was the synthesizing, characterization and application of nanoscale iron particles to dehalogenation of organic compounds for environmental remediation. In this study, laboratory assessment has demonstrated that (1) metallic iron nanoparticles (Fe$ ^0$ ) can be prepared by the solution method from common precursor Fe (III) and that
Publicado em: 2009
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24. Sintetização, caracterização e aplicação do ferro metálico nanoparticulado na redução de compostos organoclorados para a recuperação ambiental / Synthesizing, characterization and application of nanoscale iron particles to dehalogenation of organic compounds for environmental remediation
O objetivo deste trabalho foi de sintetizar, caracterizar e aplicar o ferro metálico nanoparticulado na redução de compostos organoclorados, visando a recuperação ambiental. Este estudo demonstrou que, (1) partículas de ferro metálico (Fe$ ^0$ ), com dimensões nanométricas (70 nm, em média), podem ser sintetizadas utilizando-se cátion férrico Fe
Publicado em: 2009