CELINA LOPES DUARTE

CELINA LOPES DUARTE

(Fonte: Lattes)

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Graduated in Pharmacy and biochemistry by Sao Paulo University, USP, (1986), Master of Science in Radiological Protection and Dosimetry, USP (1992). PhD in Environmental Application of Nuclear Technology (1999). Researcher of the Energetic and Nuclear Research Institute (IPEN) from 1986 to 2014 and adviser at Sao Paulo University from 2001 to 2014. Expert in applications of Advanced Oxidation Process (POA) with ionizing radiation using electron beam and gamma in the decomposition of organic pollutants, with the main objective of environmental recovery and industrial effluent treatment, in addition the pretreatment of sugarcane bagasse to ethanol biofuel production. Coordinated some projects in these areas with financial support of FAPESP and AIEA. Advisor of 6 students in Master Degree and 2 Doctor Degree. Published 36 papers and won the prize TOP ETHANOL in Industrial Technology Inovation in 2013 and ABRAFATI - PETROBRAS SCIENCE IN DYES IN 2012. (Text obtained from the Currículo Lattes on May 2nd 2023)

Possui graduação em Farmácia e Bioquímica pela Universidade de São Paulo (1986), mestrado em Proteção Radiológica e Dosimetria (1992) e doutorado em Aplicações Ambientais e Industriais da Tecnologia Nuclear pela USP-IPEN (1999). Pesquisador do IPEN de 1986 a 2014 e orientador de pós-graduação da Universidade de São Paulo de 2001 a 2014. Sua especialização inclui aplicação de Processo de Oxidação Avançada (POA) por radiação ionizante de feixe de elétrons e gama, para decomposição de poluentes orgânicos, com o objetivo de despoluição ambiental, tratamento de efluentes industriais e também como pré-tratamento do bagaço de cana, para produção de etanol de segunda geração. Coordenou vários projetos nessas áreas com financiamentos da FAPESP e Agencia Internacional de Energia Atômica. Orientou 6 alunos de mestrado e 2 de doutorado. Publicou 36 trabalhos em periódicos internacionais e ganhou o Prêmio TOP ETANOL em Inovação Tecnológica Industrial em 2013 e o Prêmio ABRAFATI -PETROBRAS DE CIÊNCIA EM TINTAS em 2012. (Texto extraído do Currículo Lattes em 02 maio 2023)

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Evaluation of Brazilian sugarcane bagasse characterization: An interlaboratory comparison study
2016 - SLUTTER, JUSTIN B.; CHUM, HELENA; GOMES, ABSAI C.; TAVARES, RENATA P.A.; AZEVEDO, VINICIUS; PIMENTA, MARIA T.B.; RABELO, SARITA C.; MARABEZI, KAREN; CURVELO, ANTONIO A.S.; ALVES, APARECIDO R.; GARCIA, WOKIMAR T.; CARVALHO, WALTER; ESTEVES, PAULA J.; MENDONCA, SIMONE; OLIVEIRA, PATRICIA A.; RIBEIRO, JOSE A.A.; MENDES, THAIS D.; VICENTIN, MARCOS P.; DUARTE, CELINA L.; MORI, MANOEL N.
Overview of radiation technology for environmental remediation in Brazil
2016 - DUARTE, C.L.; BORRELY, S.I.; OIKAWA, H.; MORI, M.N.; RELA, P.R.; COSTA, F.E.; SAMPA, M.H.O.
Degradation of polysaccharides from sugarcane bagasse using electron beam accelerator
2008 - CARDOSO, V.M.; MORI, M.N.; FINGUERUT, J.; NAGATOMI, H.R.; OIKAWA, H.; DUARTE, C.L.
Tratamento de oleo de corte pelo processo de oxidacao avancada por radiacao ionizante
2004 - DUARTE, C.L.; MORI, M.N.; BAUMGARTNER, J.B.
Descontaminacao de embalagens de clorpirifos utilizando radiacao ionizante
2005 - MORI, M.N.; OIKAWA, H.; SAMPA, M.H.O.; DUARTE, C.L.
Estudo comparativo da utilizacao de aceleradores industriais de eletrons e adsorcao com carvao ativado para tratamento de efluentes industriais
2005 - SAMPA, M.H.O.; RELA, P.R.; DUARTE, C.L.; CASAS, A.L.; MORI, M.N.; OMI, N.M.
Ametryne degradation by ionizing radiation
2007 - ANDRADE, DEBORA C. de; MELO, RITA P.; MORI, MANOEL N.; DUARTE, CELINA L.
Ametryne may be released to the environment during its manufacture, transport, storage, formulation and use as selective herbicide for the control of annual broadleaf and grass weeds. It is applied as an aqueous suspension for preemergence or post-directed applications on crops. Depending on the pesticide formulation and type of application, ametryne residues may be detectable in water, soil and on the surfaces for months or years. The herbicide used to this study was Ametryne (commercial name, Gesapax 500), commonly used on field crops and on corn and commercialized since 1975. Ametryne was analyzed by gas chromatography (GC Shimadzu 17A), after extraction with hexane/dichloromethane (1:1 v/v) solution. The calibration curve was obtained with a regression coefficient of 0.9871. In addition, the relative standard deviation was lower than 10%. The radiation-processing yield was evaluated by the destruction G-value (Gd) (Eq. 1), that is defined by the number of destroyed molecules by absorption of 100 eV of energy from ionizing radiation. Different concentrations of the herbicide (11.4 mol L -1 ; 22.7 mol L -1 ; 34.1 mol L -1 and 45.5 mol L -1 ) were irradiated at the AECL “Gammacell 220” 60Co source, with 1 kGy, 3 kGy, 6 kGy, 9 kGy, 12kGy, 15 kGy and 30 kGy absorbed doses. After irradiation processing, the ametryne highest reduction rate occurs at low doses of radiation: at 6 kGy more than 85-90% of all ametryne compounds were removed. Two products of incomplete degradation of ametryne were identified as s-triazyne isomers. However, further work is needed in order to fully understand the ametryne degradation mechanisms the degradation yield of ametryne depends on its initial concentration and the process seems to be more efficient at higher concentrations.
Simultaneous removal of various pesticides from contaminated HDPE packing using electron beam accelerator
2007 - DUARTE, CELINA L.; MORI, MANOEL N.; OIKAWA, HIROSHI; SAMPA, MARIA H. de O.
Decontamination of chlorpyrifos packing using ionizing radiation: processing optimization
2007 - MORI, MANOEL N.; SAMPA, MARIA H.O.; DUARTE, CELINA L.
Evaluation of seawater contamination with benzene, toluene and xylene in the Ubatuba region and study of their degradation by ionizing radiation
2007 - ALMEIDA, KELLY C.S. de; CARDOSO, VANESSA M.; MORI, MANOEL N.; DUARTE, CELINA L.
A major concern with leaking petroleum is the environmental contamination by toxic and low water-soluble components such as benzene, toluene, and xylenes (BTX). These hydrocarbons have relatively high pollution potential because of their significant toxicity. The objective of this study was to evaluate the contamination of seawater by the main pollutants of the output and transport of petroleum, such as benzene, toluene, and xylenes, and their removal by exposure to ionizing radiation. The studied region was Ubatuba region, SP, between 23º26’S and 23º46’S of latitude and 45º02’W and 45º11’W of longitude, area of carry and output of petroleum, and samples were collected from November, 2003 to July, 2005. For BTX in seawater analysis, the Purge and Trap concentrator with FIDGC detector showed significantly higher sensibility than headspace concentrator with MSGC detector. The minimal detected limits (MDL) obtained at FIDGC were of 0.50 g/L for benzene, 0.70 g/L for toluene, and 1.54 g/L for xylenes, and the obtained experimental variability was 15%. While the concentrator type Headspace system with MS detector showed higher MDL, about of 9.30 mg/L for benzene, 8.50 mg/L for toluene, and 9.80 mg/L for xylenes, and 10% of experimental variability. In the studied area the benzene concentration varied from 1.0 g/L to 2.0 g/L, the concentration of toluene varied from < 0.70 g/L to 3.24 g/L and the maximum value of xylenes observed was of 2.92 g/L. The seawater samples contaminated with BTX standard were exposed to ionizing radiation using a source of 60Co. The results showed a removal from 10% to 40% of benzene at 20kGy absorbed doses and concentration of 35.1 mg/L and 70.2 mg/L, respectively. For toluene the removal were from 20% to 60% with 15kGy and xylenes were removed from 20% to 80% with 15kGy and similar concentrations.