ALEXANDRE LAS CASAS
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Artigo IPEN-doc 28285 Synthesis of geopolymers for immobilization of radioactive waste using sewage treatment plant sludge2021 - CASAS, A.; ARAUJO, L.; GARCIA, R.; VICENTE, R.; FRANCO, M.; MARUMO, J.Artigo IPEN-doc 27339 Use of ionizing radiation for treatment and extraction of organic compounds from petroleum sludge2019 - TESSARO, ANA P.G.; ROLINDO, NATALIE C.; MARUMO, JULIO T.; VICENTE, ROBERTO; LAS CASAS, ALEXANDREThis paper presents preliminary results of a technical feasibility study of the use of an electron beam accelerator for the treatment of petroleum sludge and the degradation of organic and inorganic compounds. After analyzing the results of previous studies, the doses of the pilot study were defined.Artigo IPEN-doc 26210 Oil sludge treatment by electron beam irradiation2019 - TESSARO, ANA P.G.; CASAS, ALEXANDRE L.; TEIXEIRA, ANTONIO C.S.C.; VICENTE, ROBERTO; MARUMO, JULIO T.; ARAUJO, LEANDRO G. deRadiation induced advanced oxidation processes have been proposed for the treatment of various types of wastes. However, electron beam technologies for the removal of recalcitrant compounds in petroleum wastes are still poorly understood. This work aims at evaluating the effects on the degradation of organic matter from oil sludge by electron beam irradiation. The radiometric analysis was also performed to identify radionuclides and measure dose rates. An electron beam accelerator, model Dynamitron II, with variable current up to 25 mA was employed and the irradiation dose values ranged from 20 to 250 kGy. Solutions were prepared with an initial H2O2 concentration of 1.34 mol L 1. Samples without H2O2 addition, but with water were also evaluated. Control tests with dry and pulverized sludge were submitted to irradiation. The effects on the removal of total organic carbon and the sludge degradation are discussed.Artigo IPEN-doc 10664 Estudo comparativo da utilizacao de aceleradores industriais de eletrons e adsorcao com carvao ativado para tratamento de efluentes industriais2005 - SAMPA, M.H.O.; RELA, P.R.; DUARTE, C.L.; CASAS, A.L.; MORI, M.N.; OMI, N.M.Artigo IPEN-doc 09912 Treatment of industrial effluents using electron beam accelerator and adsorption with activated carbon: a compartive study2003 - SAMPA, M.H.O.; RELA, P.R.; CASAS, A.L.; MORI, M.N.; DUARTE, C.L.