RAFAEL VICENTE DE PADUA FERREIRA
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Artigo IPEN-doc 15095 Biodegradation of ethyl acetate in radioactive liquid organic waste by bacterial communities2009 - FERREIRA, RAFAEL V.P.; SAKATA, SOLANGE K.; BORBA, TANIA R.; BELLINI, MARIA H.; DUTRA, FERNANDO; MARUMO, JULIO T.The research and development program in reprocessing of low burn-up spent fuel elements began in Brazil in 70’s, originating the lab -scale hot cell, known as CELESTE located at IPEN-CNEN/SP. The program was ended at the beginning of 90’s and part of the radioactive waste generated mainly from the analytical laboratories is stored at the Waste Management Laboratory. Among various types of radioactive waste generated, the organic liquid represents a major problem for its management, because it can not be directly solidified with cement. The objective of this work is to develop a pretreatment methodology to degrade the ethyl acetate present in organic liquid waste so that it can subsequently be immobilized in cement. This work was divided into two parts: i) selection and adaptation of three bacterial communities for growth in medium containing ethyl acetate. ii) degradation experiments of ethyl acetate present in radioactive organic liquid waste. The results showed that from bacterial communities the highest biodegradation level observed was 77%.Artigo IPEN-doc 16865 Application of bacteria to remove americium from radioactive liquid waste2011 - BORBA, TANIA R. de; SAKATA, SOLANGE K.; FERREIRA, RAFAEL V. de P.; BELLINI, MARIA H.; RODRIGUES, DEBORA F.; MARUMO, JULIO T.Artigo IPEN-doc 16877 Biodegradação de tributilfosfato em rejeito radioativo líquido orgânico por comunidades bacterianas2011 - FERREIRA, RAFAEL V.P.; SAKATA, SOLANGE K.; DUTRA, FERNANDO; BELLINI, MARIA H.; MARUMO, JULIO T.Artigo IPEN-doc 16882 Aplicação de biomassa bacteriana para biotratamento de rejeitos radioativos líquidos contendo amerício-2412011 - BORBA, TANIA R. de; SAKATA, SOLANGE K.; GOES, MARCOS M.; FERREIRA, RAFAEL V.P.; MARIA, DURVANEI A.; VICENTE, ELISABETE J.; MARUMO, JULIO T.Artigo IPEN-doc 18292 Treatment of radioactive liqui organic waste using bacteria community2012 - FERREIRA, RAFAEL V. de P.; SAKATA, SOLANGE K.; DUTRA, FERNANDO; VITTA, PATRICIA B. DI; TADDEI, MARIA H.T.; BELLINI, MARIA H.; MARUMO, JULIO T.