Krutman, I.; Grosche Filho, C.E.; Chandra, U.; Suarez, A.A.
Contribution of IPEN-CNEN/SP to the Seminar on Management Options for Low and Intemediate Level Wastes in Latin America1987
Contribution of IPEN-CNEN/SP to the Seminar on Management Options for Low and Intemediate Level Wastes in Latin America1987
AbstractAbstract
[en] A system for incinerating the combustible solid and liquid radioactive wastes was developed in order to achieve higher mass and volume reduction of the wastes generated at IPEN-CNEN/SP or received from other institutions. The radioactive wastes for incineration are: animal carcasses, ion-exchange resins, contaminated lubricant oils, cellulosic materials, plastics, etc. The optimization of the process was achieved by considering the following factors: selection of better construction and insulating material; dimensions; modular design of combustion chambers to increase burning capacity in future; applicability for various types of wastes; choise of gas cleaning system. The off-gas system utilizes dry treatment. The operation is designed to function with a negative pressure. (Author)
[pt]
Foi desenvolvido um sistema para incineracao de rejeitos radioativos de combustiveis solidos e liquidos para atender a uma massa maior e reducao de volume de rejeitos gerados no IPEN-CNEN/SP ou recebidos de outras instituicoes. Os rejeitos radioativos para incineracao sao: carcacas de animais, resinas, oleos lubrificantes contaminados, materiais de celulose, plasticos e etc. A otimizacao do processo foi feita considerando-se os seguintes fatores: selecao de melhor material de construcao e isolamento, dimensoes, desenho modular da camara de combustao para aumentar a capacidade de queima no futuro, aplicabilidade para varios tipos de rejeitos e escolha do sistema de limpeza do gas. O sistema de desligamento do gas utiliza tratamento a seco. A operacao e projetada para funcionar com uma pressao negativa para permitir o escape de gases radioativos. (M.C.K.)Primary Subject
Source
Instituto de Pesquisas Energeticas e Nucleares, Sao Paulo (Brazil); 134 p; Jul 1987; p. 76; Seminar on Management Options for Low and Intermediate Level Wastes in Latin America; Rio de Janeiro, RJ (Brazil); 13-17 Oct 1986
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Report
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Conference
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Krutman, I.
Sao Paulo Univ. (Brazil)1985
Sao Paulo Univ. (Brazil)1985
AbstractAbstract
[en] A laser induced fluorescence system was developed to measure uranium trace level amounts in aqueous solution with reliable and simple materials and electronics. A nitrogen pulsed laser was built with the storage energy capacitor directly coupled to laser tube electrodes as a transmission line device. This laser operated at 3Hz repetition rate with peak intensity around 21 Kw and temporal width of 4.5 x 10-9 s. A sample compartment made of rigid PVC and a photomultiplier housing of aluminium were constructed and assembled forming a single integrated device. As a result of this prototype system we made several analytical measurements with U dissolved in nitric acid to obtain a calibration curve. We obtained a straight line from a plot of U concentration versus fluorescence intensity fitted by a least square method that produced a regression coefficient of 0.994. The lower limit of U determination was 30 ppb -+ 3.5%. (Author)
[pt]
Foi desenvolvido um sistema de fluorescencia induzida por laser para medir-se tracos de uranio em solucao aquosa com material e eletronica simples e de facil aquisicao. Um laser de nitrogenio foi construido, para tanto, como o capacitor armazenador de energia acoplado diretamente aos eletrodos do tubo do laser como uma linha de transmissao. Este laser operou a uma taxa de repeticao de 3 Hz com intensidade pico de 21 KW, aproximadamente, e largura temporal de 4,5 x 10-9 s. Um porta-amostra foi feito com chapa de PVC rigida e um encapsulamento em aluminio foi feito para abrigar uma fotomultiplicadora, o conjunto foi montado formando um dispositivo integrado. Como resultado deste sistema prototipo uma serie de medidas foram feitas com U dissolvido em acido nitrico para se obter uma curva de calibracao. Obteve-se uma reta, num grafico onde tem-se concentracao de Uranio versus intensidade de fluorescencia, ajustada pelo metodo de minimos quadrados com coeficiente de regressao linear de 0,994. O limite mais baixo para esta montagem foi de 30 ppb -+ 3,5%. (Autor)Original Title
Fluorescencia de uranio induzida por laser como um metodo analitico
Source
1985; 49 p; Tese (M.Sc.).
Record Type
Miscellaneous
Literature Type
Thesis/Dissertation; Numerical Data
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ACTINIDES, AMPLIFIERS, DATA, DISPERSIONS, ELECTRICAL EQUIPMENT, ELEMENTS, EMISSION, ENERGY STORAGE SYSTEMS, EQUIPMENT, HOMOGENEOUS MIXTURES, HYDROGEN COMPOUNDS, INFORMATION, INORGANIC ACIDS, INORGANIC COMPOUNDS, LUMINESCENCE, MEASURING INSTRUMENTS, METALS, MIXTURES, NITROGEN COMPOUNDS, NONMETALS, NUMERICAL DATA, OXYGEN COMPOUNDS, PHOTON EMISSION, PHOTOTUBES, SOLUTIONS
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Krutman, I.; Grosche Filho, C.E.; Chandra, U.; Suarez, A.A.
Proceedings of the Seminar on Management Options for Low and Intermediate Level Wastes in Latin America1986
Proceedings of the Seminar on Management Options for Low and Intermediate Level Wastes in Latin America1986
AbstractAbstract
[en] A system for incinerating combustible solid and liquid radioactive wastes was developed in order to achieve higher mass and volume reduction of the wastes generated at IPEN-CNEN/SP or received from other institutions. The radioactive wastes for incineration are: animal carcasses, ion-exchange resins, contaminated lubricant oils, cellulotic materials, plastics, etc. The process was optimized considering: selection of better construction and insulating materials; dimensions; modular design of combustion chambers to increase burning capacity in future; applicability for various types of wastes; choise of gas cleaning system. (Author)
[pt]
Desenvolveu-se um sistema para incineracao de rejeitos radioativos solidos e liquidos para executar maior massa e reducao de volume dos rejeitos gerados no IPEN-CNEN/SP ou recebidos de outras instituicoes. Os rejeitos radioativos para incineracao sao: carcacas de animais, resinas de troca ionica, oleos lubrificantes contaminados, materiais de celulose, platicos, etc. O processo foi otimizado considerando-se: a selecao de materiais de construcao e isolamento; as dimensoes: projeto modulado de camaras de combustao para aumentar a capacidade de queima no futuro; aplicabilidade para varios tipos de rejeitos; escolha do sistema de limpeza gasosa. (M.C.K.)Primary Subject
Source
International Atomic Energy Agency, Vienna (Austria); 614 p; 1986; p. 314-320; Seminar on Management Options for Low and Intermediate Level Wastes in Latin America; Rio de Janeiro, RJ (Brazil); 13-17 Oct 1986; IAEA-SR--110/26
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Miscellaneous
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Conference
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Krutman, I.; Grosche Filho, C.E.; Chandra, U.; Suarez, A.A.
Proceedings of the Seminar on Management Options for Low and Intermediate Level Wastes in Latin America - Abstracts1986
Proceedings of the Seminar on Management Options for Low and Intermediate Level Wastes in Latin America - Abstracts1986
AbstractAbstract
No abstract available
Primary Subject
Source
International Atomic Energy Agency, Vienna (Austria); 86 p; 1986; p. 52; Seminar on Management Options for Low and Intermediate Level Wastes in Latin America; Rio de Janeiro, RJ (Brazil); 13-17 Oct 1986; Published in summary form only.
Record Type
Miscellaneous
Literature Type
Conference
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Reference NumberReference Number
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