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1	Uso de microssilica como aditivo na imobilizacao de rejeitos radioativos em cimento DELLAMANO, JOSE C. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:38:25Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:04:47Z (GMT). No. of bitstreams: 1 05833.pdf: 3627328 bytes, checksum: 76369e5662f766257847711bedba7fae (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP radioactive wastes cements solidification waste processing
2	Uso de microssilica como aditivo na imobilizacao de rejeitos radioativos em cimento DELLAMANO, JOSE C. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:38:25Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:04:47Z (GMT). No. of bitstreams: 1 05833.pdf: 3627328 bytes, checksum: 76369e5662f766257847711bedba7fae (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP radioactive wastes cements solidification waste processing
3	Immobilisation of actinide simulants in cement Dickson, Catherine Louise January 1999 (has links) The current UK strategy for radioactive waste management is to permanently store the waste in an underground repository. Final disposal of the radwaste may then be preceded by chemical conditioning and physical encapsulation. The objective of this work was to determine the extent of actinide immobilisation in cement. Since actinides are hazardous and costly to study directly, a chemical analogue approach to studying actinide immobilisation was adopted. Th(IV), Ce(III, IV) and Eu(III) were chosen as actinide simulants and their suitability assessed by a critical review of the literature. Ca(OH)<sub>2</sub> and C-S-H dominate the observed chemical properties of the aqueous phase in cement. As they are of such importance, it was these cement components which were used to investigate the reaction of the simulant elements with cement. The phases found to be predicted were ThO<sub>2</sub>, ThSiO<sub>4</sub>, Eu(OH)<sub>3</sub>, Ca<sub>2</sub>Eu<sub>8</sub>(SiO<sub>4</sub>)<sub>6</sub>O<sub>2</sub>, CeO<sub>2</sub>, CeSiO<sub>4</sub> and Ca<sub>2</sub>(SiO<sub>4</sub>)<sub>6</sub>O<sub>2</sub>. CeSiO<sub>4</sub> and Ca<sub>2</sub>Ce<sub>8</sub>(SiO<sub>4</sub>)O<sub>2</sub> are newly reported phases, produced by hydrothermal synthesis. Rietveld refinement confirmed CeSiO<sub>4</sub> to have the zircon structure, with space group 14<sub>1</sub>/amd and cell parameters a = 6.9564(3) A, c = 6.1953 (4) A. Ca<sub>2</sub>Ce<sub>8</sub>(SiO<sub>4</sub>)<sub>6</sub>O<sub>2</sub> exhibits the apatite structure, with space group P6<sub>3</sub>/m and cell parameters a = 9.4343(3) a, c = 6.8885(4) A. Preliminary solubility studies were carried out on all of the solubility-limiting phases. Phase impurity, poor crystallinity and incongruent solubility of phases hindered the generation of solubility product data. Nevertheless, these phases have naturally occurring analogues which are known to be environmentally stable and have low solubilities. On the basis of the experimental results obtained, it may be concluded that cement has the potential to be a very effective immobilisation matrix for actinide elements. Recommendations for future experiments using active elements are discussed. 628.5
4	Incorporacao de residuo galvanico em vidro silicato obtido a partir de finos de silica SILVA, ANTONIO C. da 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:49:39Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:00:43Z (GMT). No. of bitstreams: 1 09674.pdf: 5668874 bytes, checksum: 2354e277c07618372ccf5f8088dde3b7 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP Electroplating Waste processing Vitrification Waste product utilization Glass Silica Feldspars
5	Avaliacao dos residuos radioativos no Instituto de Energia Atomica .Criterios para a eliminacao e estudo de tecnicas para seu tratamento SAWAKUCHI, ROBERTO S. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:29:26Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:16Z (GMT). No. of bitstreams: 1 00406.pdf: 1086747 bytes, checksum: c5381220f76c0f0fbd40893ba1e27e0d (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP ion exchange precipitation radioactive wastes semi-metals tellurium waste processing
6	Controle radiometrico ambiental nas imediacoes do Instituto de Energia Atomica BEDANI, MARIA I. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:29:54Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:54Z (GMT). No. of bitstreams: 1 00477.pdf: 1471190 bytes, checksum: b5a286797103a1b82cd4419c4d8ec02a (MD5) / Dissertacao (Mestrado) / IEA/D / Instituto de Energia Atomica - IEA environment monitoring radioactive wastes research reactors iear-1 waste processing
7	Tratamento de solucoes contendo acido citrico e imobilizacao em cimento portland LOPES, VALDIR M. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:43:04Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:05:35Z (GMT). No. of bitstreams: 1 06124.pdf: 4912252 bytes, checksum: a10b5a0b5037f2df963acd926b7b2c97 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP citric acid waste processing decontamination evaporation solidification portland cement
8	Incorporacao de residuo galvanico em vidro silicato obtido a partir de finos de silica SILVA, ANTONIO C. da 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:49:39Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:00:43Z (GMT). No. of bitstreams: 1 09674.pdf: 5668874 bytes, checksum: 2354e277c07618372ccf5f8088dde3b7 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP electroplating waste processing vitrification waste product utilization glass silica feldspars
9	Avaliacao dos residuos radioativos no Instituto de Energia Atomica .Criterios para a eliminacao e estudo de tecnicas para seu tratamento SAWAKUCHI, ROBERTO S. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:29:26Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:16Z (GMT). No. of bitstreams: 1 00406.pdf: 1086747 bytes, checksum: c5381220f76c0f0fbd40893ba1e27e0d (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP ion exchange precipitation radioactive wastes semi-metals tellurium waste processing
10	Tratamento de solucoes contendo acido citrico e imobilizacao em cimento portland LOPES, VALDIR M. 09 October 2014 (has links) Made available in DSpace on 2014-10-09T12:43:04Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:05:35Z (GMT). No. of bitstreams: 1 06124.pdf: 4912252 bytes, checksum: a10b5a0b5037f2df963acd926b7b2c97 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP citric acid waste processing decontamination evaporation solidification portland cement

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