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Navegação IPEN por autor "10769"
-
TESSARO, ANA P.G.
; ARAUJO, LEANDRO G. de
; TSUTSUMIUCHI, VICTOR K.
; OLIVEIRA JUNIOR, JULIO de
; VICENTE, ROBERTO
.
An algorithmic software model for the characterization of radioactive waste.
Journal of Radioanalytical and Nuclear Chemistry,
v. 330,
n. 1,
p. 279–292,
2021.
DOI:
10.1007/s10967-021-07934-2
Abstract:
Non-consolidated information base, repetitive work, and data unreliability are some of the issues that may hamper a radioactive waste characterization program. Therefore, an algorithmic software model for the characterization of radioactive waste is proposed to boost waste management in nuclear-based facilities. The data obtained have enabled the construction of a guide code in the pseudotechnical language. The developed system fully covered the characterization stage, and met the needs identified in the radioactive waste management service. Here, we propose systematic documentation of the characterization methods that are employed during the radioactive waste management processes, besides formulating the system’s data recording.
Palavras-Chave:
algorithms;
nuclear data collections;
radioactive waste management;
site characterization
TESSARO, ANA P.G.; ARAUJO, LEANDRO G. de; TSUTSUMIUCHI, VICTOR K.; OLIVEIRA JUNIOR, JULIO de; VICENTE, ROBERTO.
An algorithmic software model for the characterization of radioactive waste.
Journal of Radioanalytical and Nuclear Chemistry,
v. 330,
n. 1,
p. 279–292,
2021.
DOI:
10.1007/s10967-021-07934-2.
Disponível em: http://repositorio.ipen.br/handle/123456789/32455. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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SMITH, RICARDO B.
; TESSARO, ANA P.G.
; MARUMO, JULIO T.
; VICENTE, ROBERTO
.
Antifragility and radioactive waste management.
In: SMITH, RICARDO B. (Org.).
Essays on nuclear energy and radioactive waste management.
1 ed..
São Paulo, SP: Gênio Criador Editora,
2021.
p. 130-148,
cap. 9.
Abstract:
It is not possible to quantify the future, since it is unknown
to us. Mathematical models fail when the ambiguity of facts overrides
them. Nevertheless, the traditional risk management, with its
difficulty in predicting elements that challenge the linear thinking, has
in recent years had a strong partner: Antifragility. Unlike disciplines
that seek to mitigate the risks of the unpredictable, antifragility views
uncertainty as desirable and necessary. It is a recent discipline that
breaks the paradigm of always being more effective and efficient;
instead, the focus is on the fragile points of an institution, and how to
incorporate in it the ability to get stronger over time, as it is subject
to stress. Decision making is ultimately a bet. And when it comes to
strategic decisions, these are usually high-risk bets because they
financially affect the organization, or even the safety of a group, a
city, or a country. And the vast majority of decisions are increasingly
being made in situations without the full picture of a defined causal
model being available. In the case of the nuclear area, it is a field of
intense control due to the risk of excessive radiological exposure,
and as such it requires a rigorous and continuous risk management,
including the management of radioactive waste which is produced
in its most various fields of action. Based on this approach, this work
seeks to analyze possible fragilities in the institutional, staff and
technological areas of the Radioactive Waste Management Service
of the Nuclear and Energy Research Institute, in the city of São Paulo,
and therefore present potential solutions under the perspective of
antifragility, aiming at improving the safety of the human being and
the environment.
SMITH, RICARDO B.; TESSARO, ANA P.G.; MARUMO, JULIO T.; VICENTE, ROBERTO.
Antifragility and radioactive waste management.
In:
SMITH, RICARDO B. (org.).
Essays on nuclear energy and radioactive waste management.
1 ed..
São Paulo, SP: Gênio Criador Editora,
2021.
cap. 9.
p. 130-148.
Disponível em: http://repositorio.ipen.br/handle/123456789/33819. Acesso em: $DATA.
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ROLINDO, NATALIE C.
; TESSARO, ANA P.G.
; VICENTE, ROBERTO
.
Assessment of dose for NORM oil sludge disposed of in landfills.
In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE,
November 29 - December 2, 2021,
Online.
Proceedings...
Rio de Janeiro: Associação Brasileira de Energia Nuclear,
2021.
Palavras-Chave:
waste disposal;
landfill gas;
natural radioactivity;
oils;
petroleum industry;
sludges;
pollution regulations;
radioactive waste management;
risk assessment
ROLINDO, NATALIE C.; TESSARO, ANA P.G.; VICENTE, ROBERTO.
Assessment of dose for NORM oil sludge disposed of in landfills.
In:
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE,
November 29 - December 2, 2021,
Online.
Proceedings...
Rio de Janeiro: Associação Brasileira de Energia Nuclear,
2021.
Disponível em: http://repositorio.ipen.br/handle/123456789/32418. Acesso em: $DATA.
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SILVA, RODRIGO A. da
; SUKADOLNIK, MIKAELL P.
; TESSARO, ANA P.G.
; SOUZA, DAIANE C.B. de
; VICENTE, ROBERTO
.
Caracterização de embalados de rejeitos radioativos utilizando Microshield.
In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE,
October 21-25, 2019,
Santos, SP.
Proceedings...
Rio de Janeiro: Associação Brasileira de Energia Nuclear,
2019.
p. 3027-3033.
Abstract:
Na extração de petróleo, há presença significativa de material radioativo de origem natural e, por isso, as empresas que realizam esse trabalho devem atender as normas de proteção radiológica estabelecidas pela Comissão Nacional de Energia Nuclear (CNEN). Determinar a concentração radioisotópica em rejeitos radioativos é um passo fundamental no processo de caracterização dos rejeitos e é essencial no tratamento, no transporte e na eliminação deles. Este estudo consistiu na utilização de medidas das taxas de dose e cálculos para estimativa do conteúdo radioativo presente em tambores com rejeitos provenientes da indústria de petróleo. Foi utilizado o programa para cálculo de blindagem Microshield. Os principais resultados obtidos foram os valores de taxa de dose e a espectrometria de emissão gama. O método baseado na medição das taxas de exposição em torno de embalados fornece boas aproximações quando as informações sobre emissores gama presentes nos embalados de rejeitos são obtidos por espectrometria gama.
Palavras-Chave:
containers;
dose rates;
gamma radiation;
gamma spectroscopy;
m codes;
petroleum industry;
point kernels;
radiation doses;
radiation monitoring;
radioactive wastes;
radioactivity;
tailings
SILVA, RODRIGO A. da; SUKADOLNIK, MIKAELL P.; TESSARO, ANA P.G.; SOUZA, DAIANE C.B. de; VICENTE, ROBERTO.
Caracterização de embalados de rejeitos radioativos utilizando Microshield.
In:
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE,
October 21-25, 2019,
Santos, SP.
Proceedings...
Rio de Janeiro: Associação Brasileira de Energia Nuclear,
2019.
p. 3027-3033.
Disponível em: http://repositorio.ipen.br/handle/123456789/30663. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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ROLINDO, N.C.
; TESSARO, A.P.G.
; SMITH, R.B.
; CAMPOS, C.; MARUMO, J.T.
; VICENTE, R.
.
Disused sealed radioactive sources: inventory and characterization at IPEN.
In: INTERNATIONAL JOINT CONFERENCE RADIO,
September 16-20, 2019,
São Paulo, SP.
Resumo expandido...
Maringá, PR: Sociedade Brasileira de Proteção Radiológica,
2019.
ROLINDO, N.C.; TESSARO, A.P.G.; SMITH, R.B.; CAMPOS, C.; MARUMO, J.T.; VICENTE, R.
Disused sealed radioactive sources: inventory and characterization at IPEN.
In:
INTERNATIONAL JOINT CONFERENCE RADIO,
September 16-20, 2019,
São Paulo, SP.
Resumo expandido...
Maringá, PR: Sociedade Brasileira de Proteção Radiológica,
2019.
Disponível em: http://repositorio.ipen.br/handle/123456789/30291. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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SMITH, RICARDO B.
; TESSARO, ANA P.G.
; ROLINDO, NATALIE C.
; VICENTE, ROBERTO
.
Further analyses of the unburied Goiania Accident packages.
In: ANNUAL WASTE MANAGEMENT CONFERENCE, 45th,
March 3-7, 2019,
Phoenix, Arizona, USA.
Proceedings...
Tempe, Arizona, USA: Waste Management Symposia,
2019.
p. 1-7.
Abstract:
In 1987, in the city of Goiania, Brazil, a derelict teletherapy machine was disassembled by scavengers and Cs-137 was released in the environment, unleashing the biggest radiological accident in Brazil. During the 15 days before the accident was acknowledged, some contaminated materials were sold and delivered to recycling factories in a few cities in the state of Sao Paulo, Brazil, in the form of metal scrap and recycled paper bales. The contaminated material was then collected, the metal scrap was conditioned in forty-three 200-liter drums, and the paper bales were stored in fifty 1.6 cubic meter steel boxes at the interim storage of the Nuclear and Energy Research Institute (IPEN), in the city of Sao Paulo, and there remained ever since. In 2017, 30 years later, initial analyses were performed at a sample of these boxes, checking for their activity, weight, and incongruences between the original values recorded at the time of collection and the measurement results 30 years later. The results indicated that none of the boxes checked were close to the clearance limit and that, without any sort of treatment, this radioactive waste should be stored for at least 150 years more. Visual inspection could not be performed at that time. Nowadays, some of the boxes were opened and samples from the contaminated material inside were taken for analysis. The main objective of this work is to report the results from the evaluation of the physical state of this material. After these analyses, the treatment options for volume reduction that were previously proposed were reviewed, and the method that best suits the current characteristics of the waste was chosen.
Palavras-Chave:
cesium 137;
environment;
radiation accidents;
radiation hazards;
radiation protection;
radioactive waste storage;
radioactive wastes;
radiotherapy;
recycling;
scrap metals;
steels;
urban areas
SMITH, RICARDO B.; TESSARO, ANA P.G.; ROLINDO, NATALIE C.; VICENTE, ROBERTO.
Further analyses of the unburied Goiania Accident packages.
In:
ANNUAL WASTE MANAGEMENT CONFERENCE, 45th,
March 3-7, 2019,
Phoenix, Arizona, USA.
Proceedings...
Tempe, Arizona, USA: Waste Management Symposia,
2019.
p. 1-7.
Disponível em: http://repositorio.ipen.br/handle/123456789/31565. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
Como referenciar este item
-
SMITH, RICARDO B.
; TESSARO, ANA P.G.
; ROLINDO, NATALIE C.
; VICENTE, ROBERTO
.
Further analyses of the unburied Goiania accident packages.
In: SMITH, RICARDO B. (Org.).
Essays on nuclear energy and radioactive waste management.
1 ed..
São Paulo, SP: Gênio Criador Editora,
2021.
p. 54-64,
cap. 4.
Abstract:
In 1987, in the city of Goiania, Brazil, a derelict teletherapy
machine was disassembled by scavengers and Cs-137 was released
in the environment, unleashing the biggest radiological accident in
Brazil. During the 15 days before the accident was acknowledged,
some contaminated materials were sold and delivered to recycling
factories in a few cities in the state of Sao Paulo, Brazil, in the form
of metal scrap and recycled paper bales. The contaminated material
was then collected, the metal scrap was conditioned in forty-three
200-liter drums, and the paper bales were stored in fifty 1.6 cubic
meter steel boxes at the interim storage of the Nuclear and Energy
Research Institute (IPEN), in the city of Sao Paulo, and there remained
ever since. In 2017, 30 years later, initial analyses were performed
at a sample of these boxes, checking for their activity, weight, and
incongruences between the original values recorded at the time of
collection and the measurement results 30 years later. The results
indicated that none of the boxes checked were close to the clearance
limit and that, without any sort of treatment, this radioactive waste
should be stored for at least 150 years more. Visual inspection could
not be performed at that time. Nowadays, some of the boxes were
opened and samples from the contaminated material inside were
taken for analysis. The main objective of this work is to report the
results from the evaluation of the physical state of this material. After these analyses, the treatment options for volume reduction that were
previously proposed were reviewed, and the method that best suits
the current characteristics of the waste was chosen.
SMITH, RICARDO B.; TESSARO, ANA P.G.; ROLINDO, NATALIE C.; VICENTE, ROBERTO.
Further analyses of the unburied Goiania accident packages.
In:
SMITH, RICARDO B. (org.).
Essays on nuclear energy and radioactive waste management.
1 ed..
São Paulo, SP: Gênio Criador Editora,
2021.
cap. 4.
p. 54-64.
Disponível em: http://repositorio.ipen.br/handle/123456789/33805. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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ROLINDO, NATALIE C.
; TESSARO, ANA P.G.
; SMITH, RICARDO B.
; CAMPOS, CESAR
; SAID, YASSER
; MARUMO, JULIO T.
; VICENTE, ROBERTO
.
Inventory and characterization of categories 3-5 disused sealed radioactive sources.
In: ANNUAL WASTE MANAGEMENT CONFERENCE, 45th,
March 3-7, 2019,
Phoenix, Arizona, USA.
Proceedings...
Tempe, Arizona, USA: Waste Management Symposia,
2019.
p. 1-10.
Abstract:
Brazil has one of the biggest inventories of SRS in the world, not only because of the large industrial
park, the well-developed health care infrastructure and the numerous mining operations, but also by the
use of radioactive sources in consumer products, such as smoke detectors, lightning arresters, surge
protectors and even cardiac pacemakers. Presently, the inventory of DSRS at the WML is of more than
10,000; if the sources from lightning arresters, smoke detectors and Ir-192 with activities above the
clearance levels are included, the estimate is over 150,000. The Waste Management Laboratory (WML)
of the Nuclear and Energy Research Institute (IPEN/CNEN-SP) is responsible for the management and
treatment of these sources. An important aspect to consider is that Brazil does not have a defined strategy
or a protocol for screening and inventorying these sources, whose management was limited only to
storage. The WML started the development of methods and operational work, to characterize and reduce
the total volume of this inventory for the borehole-type final disposal facility yet to be constructed, where
the DSRS will be disposed of. The information available from these sources is in a database created in
1980, when the sources began to be received. Several records on the FRSD that were checked are
incomplete or simply incorrect, since there is no correspondence between the dates of entry of these
sources in the storage and their physical characteristics. Some reasons can be listed to try to understand
the divergences: the inspection when receiving the sources was not possible, no inspection procedure was
defined, there were technical difficulties to open the packages. The objective of this work is to organize
the inventory in a standardized way, control access, traceability, reduction of the necessary time to locate
and characterize the sources upon reception, and of the repetitive work in the operational routine, and
finally release of space in the storage.
Palavras-Chave:
boreholes;
inspection;
iridium 192;
lightning arresters;
radiation sources;
radioactive waste storage;
smoke detectors
ROLINDO, NATALIE C.; TESSARO, ANA P.G.; SMITH, RICARDO B.; CAMPOS, CESAR; SAID, YASSER; MARUMO, JULIO T.; VICENTE, ROBERTO.
Inventory and characterization of categories 3-5 disused sealed radioactive sources.
In:
ANNUAL WASTE MANAGEMENT CONFERENCE, 45th,
March 3-7, 2019,
Phoenix, Arizona, USA.
Proceedings...
Tempe, Arizona, USA: Waste Management Symposia,
2019.
p. 1-10.
Disponível em: http://repositorio.ipen.br/handle/123456789/31566. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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TESSARO, ANA P.G.
; ARAUJO, LEANDRO G. de
; VICENTE, ROBERTO
.
Inventorying the radionuclides in spent cartridge filters from the primary circuit of a nuclear research reactor by the dose-to-activity method.
Radiation Physics and Chemistry,
v. 171,
p. 1-6,
2020.
DOI:
10.1016/j.radphyschem.2020.108710
Abstract:
The high activity of spent cartridge filters from the cooling water polishing system of a nuclear research reactor
precludes, in routine work of a waste characterization program, the usual method of radiochemical analysis of
filter samples. For this waste, the dose-to-activity method, using a gamma spectrometer and a dose rate meter, is
an alternative for the determination of the activities of the gamma emitters with acceptable accuracy. The ratio
of photon peak-areas from different radionuclides, corrected by the detector energy-dependent efficiency, allowed
estimating the proportions between the activities of the different radionuclides present. Finally, the simulation
of the counting geometry, using the point-kernel method to estimate the air dose rate resulting from an
arbitrary concentration of those radionuclides and the comparison of the calculated with the measured air dose
rate have yielded the needed estimates of the activity concentrations. The aim of this paper is to report the
development of the method applied for the determination of the concentration of the gamma-emitters present in
cartridge filters from the IEA-R1 Nuclear Research Reactor.
Palavras-Chave:
radioactive waste management;
calculation methods;
radioisotopes;
gamma spectrometers;
filters;
iear-1 reactor;
inventories;
solid wastes;
dose rates
TESSARO, ANA P.G.; ARAUJO, LEANDRO G. de; VICENTE, ROBERTO.
Inventorying the radionuclides in spent cartridge filters from the primary circuit of a nuclear research reactor by the dose-to-activity method.
Radiation Physics and Chemistry,
v. 171,
p. 1-6,
2020.
DOI:
10.1016/j.radphyschem.2020.108710.
Disponível em: http://repositorio.ipen.br/handle/123456789/31091. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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-
SMITH, RICARDO B.
; SALVETTI, TEREZA C.
; TESSARO, ANA P.G.
; MARUMO, JULIO T.
; VICENTE, ROBERTO
.
Knowledge management in the decommissioning of nuclear facilities in Brazil.
In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE,
October 21-25, 2019,
Santos, SP.
Proceedings...
Rio de Janeiro: Associação Brasileira de Energia Nuclear,
2019.
p. 3997-4007.
Abstract:
In the second half of the twentieth century in Brazil, several nuclear facilities were built for the most varied objectives. The largest number of such facilities is at the Nuclear and Energy Research Institute in São Paulo (IPEN-CNEN/SP). For different reasons, some of these facilities had their projects finalized and were deactivated. Some of the equipment was then dismantled, but the respective nuclear and radioactive material remained isolated in the original sites awaiting the proper decommissioning procedures. The Celeste Project is an example of a facility where the nuclear material has been kept, and is subject to Argentine-Brazilian Agency for Accounting and Control of Nuclear Materials (ABACC) periodic inspections. Because of a number of interests, including financial and/or budgeting situations at the institutions, decades have passed without any further action, and the people who withold information and knowledge about these facilities have already moved away from the area or are in the process of. Therefore, this work proposes an analysis about the knowledge management reflecting on the possible consequences for the decommissioning processes, in case of loss of the knowledge acquired.
Palavras-Chave:
decommissioning;
historical aspects;
information dissemination;
information needs;
knowledge management;
nuclear facilities;
radioactive materials;
radioactive waste management;
safety;
brazilian cnen;
brazil
SMITH, RICARDO B.; SALVETTI, TEREZA C.; TESSARO, ANA P.G.; MARUMO, JULIO T.; VICENTE, ROBERTO.
Knowledge management in the decommissioning of nuclear facilities in Brazil.
In:
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE,
October 21-25, 2019,
Santos, SP.
Proceedings...
Rio de Janeiro: Associação Brasileira de Energia Nuclear,
2019.
p. 3997-4007.
Disponível em: http://repositorio.ipen.br/handle/123456789/30688. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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-
SMITH, R.B.
; SALVETTI, T.C.
; TESSARO, A.P.G.
; MARUMO, J.T.
; VICENTE, R.V.
.
Knowledge management in the decommissioning of nuclear facilities in Brazil.
Brazilian Journal of Radiation Sciences,
v. 8,
n. 3A,
p. 1-15,
2020.
DOI:
10.15392/bjrs.v8i3A.1315
Abstract:
In the second half of the twentieth century in Brazil, several nuclear facilities were built for the most varied objectives. The largest number of such facilities is at the Nuclear and Energy Research Institute in São Paulo (IPEN-CNEN/SP). For different reasons, some of these facilities had their projects finalized and were deactivated. Some of the equipment was then dismantled, but the respective nuclear and radioactive material remained isolated in the original sites waiting for the proper decommissioning procedures. The Celeste Project is an example of a facility where the nuclear material has been kept, and is subject to Argentine-Brazilian Agency for Accounting and Control of Nuclear Materials (ABACC) periodic inspections. Because of a number of interests, including financial and/or budgeting situations at the institutions, decades have passed without any further action; the people who originally worked there, and possessed information and knowledge about these facilities, have already moved away from the area, or are in the process of. Therefore, because of the absence of knowledge management techniques in force at the time of establishing and operating these installations, this work proposes an analysis about the possible consequences in case of loss of perhaps the only one remaining knowledge, the one from the people who designed those departments and worked there.
Palavras-Chave:
decommissioning;
historical aspects;
information dissemination;
information needs;
knowledge management;
nuclear facilities;
radioactive materials;
radioactive waste management;
safety;
brazilian cnen
SMITH, R.B.; SALVETTI, T.C.; TESSARO, A.P.G.; MARUMO, J.T.; VICENTE, R.V.
Knowledge management in the decommissioning of nuclear facilities in Brazil.
Brazilian Journal of Radiation Sciences,
v. 8,
n. 3A,
p. 1-15,
2020.
DOI:
10.15392/bjrs.v8i3A.1315.
Disponível em: http://repositorio.ipen.br/handle/123456789/31948. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
Como referenciar este item
-
SMITH, RICARDO B.
; SALVETTI, TEREZA C.
; TESSARO, ANA P.G.
; MARUMO, JULIO T.
; VICENTE, ROBERTO
.
Knowledge management in the decommissioning of nuclear facilities in Brazil.
In: SMITH, RICARDO B. (Org.).
Essays on nuclear energy and radioactive waste management.
1 ed..
São Paulo, SP: Gênio Criador Editora,
2021.
p. 88-105,
cap. 6.
Abstract:
In the second half of the twentieth century in Brazil,
several nuclear facilities were built for the most varied objectives.
The largest number of such facilities is at the Nuclear and Energy
Research Institute in São Paulo (IPEN-CNEN/SP). For different
reasons, some of these facilities had their projects finalized and were
deactivated. Some of the equipment was then dismantled, but the
respective nuclear and radioactive material remained isolated in
the original sites awaiting the proper decommissioning procedures.
The Celeste Project is an example of a facility where the nuclear
material has been kept, and is subject to Argentine-Brazilian Agency
for Accounting and Control of Nuclear Materials (ABACC) periodic
inspections. Because of a number of interests, including financial
and/or budgeting situations at the institutions, decades have passed
without any further action, and the people who withhold information
and knowledge about these facilities have already moved away from
the area or are in the process of. Therefore, this work proposes an
analysis about the knowledge management reflecting on the possible
consequences for the decommissioning processes, in case of loss of
the knowledge acquired.
SMITH, RICARDO B.; SALVETTI, TEREZA C.; TESSARO, ANA P.G.; MARUMO, JULIO T.; VICENTE, ROBERTO.
Knowledge management in the decommissioning of nuclear facilities in Brazil.
In:
SMITH, RICARDO B. (org.).
Essays on nuclear energy and radioactive waste management.
1 ed..
São Paulo, SP: Gênio Criador Editora,
2021.
cap. 6.
p. 88-105.
Disponível em: http://repositorio.ipen.br/handle/123456789/33812. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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-
TESSARO, ANA P.G.
; CASAS, ALEXANDRE L.
; TEIXEIRA, ANTONIO C.S.C.; VICENTE, ROBERTO
; MARUMO, JULIO T.
; ARAUJO, LEANDRO G. de
.
Oil sludge treatment by electron beam irradiation.
In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE,
October 21-25, 2019,
Santos, SP.
Proceedings...
Rio de Janeiro: Associação Brasileira de Energia Nuclear,
2019.
p. 1250-1257.
Abstract:
Radiation 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.
Palavras-Chave:
dose rates;
electron beam furnaces;
irradiation;
oils;
radioisotopes;
radiometric analysis;
sludges;
wastes
TESSARO, ANA P.G.; CASAS, ALEXANDRE L.; TEIXEIRA, ANTONIO C.S.C.; VICENTE, ROBERTO; MARUMO, JULIO T.; ARAUJO, LEANDRO G. de.
Oil sludge treatment by electron beam irradiation.
In:
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE,
October 21-25, 2019,
Santos, SP.
Proceedings...
Rio de Janeiro: Associação Brasileira de Energia Nuclear,
2019.
p. 1250-1257.
Disponível em: http://repositorio.ipen.br/handle/123456789/30560. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
Como referenciar este item
-
TESSARO, A.P.G.
; SMITH, R.B.
; ROLINDO, N.C.
; VICENTE, R.
.
Opening the Goiania accident unburied waste packages.
In: INTERNATIONAL JOINT CONFERENCE RADIO,
September 16-20, 2019,
São Paulo, SP.
Resumo expandido...
Maringá, PR: Sociedade Brasileira de Proteção Radiológica,
2019.
TESSARO, A.P.G.; SMITH, R.B.; ROLINDO, N.C.; VICENTE, R.
Opening the Goiania accident unburied waste packages.
In:
INTERNATIONAL JOINT CONFERENCE RADIO,
September 16-20, 2019,
São Paulo, SP.
Resumo expandido...
Maringá, PR: Sociedade Brasileira de Proteção Radiológica,
2019.
Disponível em: http://repositorio.ipen.br/handle/123456789/30258. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
Como referenciar este item
-
TESSARO, ANA P.G.
; GERALDO, BIANCA
; SOUZA, DAIANE C.B. de
; SMITH, RICARDO B.
; VICENTE, ROBERTO
.
Opening the Goiânia accident unburied waste packages.
In: SMITH, RICARDO B. (Org.).
Essays on nuclear energy and radioactive waste management.
1 ed..
São Paulo, SP: Gênio Criador Editora,
2021.
p. 41-53,
cap. 3.
Abstract:
The year 2017 marks 30 years since the radiological
accident in Goiânia, Brazil, which resulted from the leakage of Cs-137
from a teletherapy equipment. The contaminated material collected
during the response to the accident was disposed of in Abadia de
Goiás, about 20 km from Goiânia. However, in the initial 15-day period
before the authorities were notified, contaminated paper bales and
scrap metal were sold and transported to material recycling facilities
in the State of São Paulo, one thousand kilometers away. These
materials were later collected in steel boxes and drums, and stored
in the intermediate waste storage facility of the Nuclear and Energy
Research Institute - IPEN, in São Paulo. The objective of this paper is
to describe the work performed to check the present condition of
the paper bales waste boxes, reassess the reported Cs-137 activities,
and evaluate possible treatment methods that can be applied to
reduce the volume of waste. Prospective waste treatment methods
are discussed.
TESSARO, ANA P.G.; GERALDO, BIANCA; SOUZA, DAIANE C.B. de; SMITH, RICARDO B.; VICENTE, ROBERTO.
Opening the Goiânia accident unburied waste packages.
In:
SMITH, RICARDO B. (org.).
Essays on nuclear energy and radioactive waste management.
1 ed..
São Paulo, SP: Gênio Criador Editora,
2021.
cap. 3.
p. 41-53.
Disponível em: http://repositorio.ipen.br/handle/123456789/33801. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
Como referenciar este item
-
TESSARO, A.P.G.
; VICENTE, R.
; MARUMO, J.T.
; TEIXEIRA, A.C.S.C.; ARAUJO, L.G.
.
Preliminary studies on electron beam irradiation as a treatment method of radioactive oil sludge.
Brazilian Journal of Radiation Sciences,
v. 9,
n. 1A,
p. 1-16,
2021.
DOI:
10.15392/bjrs.v9i1A.1416
Abstract:
Radiation-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. Characterization methods were employed to identify the chemical elements present in the waste. Radiometric analysis was performed to identify radionuclides and measure dose rates. Preliminary immobilization of the untreated waste with cement indicated resistance values very close to the minimum established in national regulation. To treat the waste, an electron beam accelerator, model Dynamitron II, with variable current up to 25 mA was employed and the irradiation doses ranged from 20 to 200 kGy. Solutions were prepared with an initial H2O2 concentration of 1.34 mol·L-1. The effects on the removal of total organic carbon are discussed.
Palavras-Chave:
dose rates;
electron beams;
irradiation;
oils;
radiation dose ranges;
radioactive waste processing;
radioactive wastes;
radioisotopes;
radiometric analysis;
sludges
TESSARO, A.P.G.; VICENTE, R.; MARUMO, J.T.; TEIXEIRA, A.C.S.C.; ARAUJO, L.G.
Preliminary studies on electron beam irradiation as a treatment method of radioactive oil sludge.
Brazilian Journal of Radiation Sciences,
v. 9,
n. 1A,
p. 1-16,
2021.
DOI:
10.15392/bjrs.v9i1A.1416.
Disponível em: http://repositorio.ipen.br/handle/123456789/32113. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
Como referenciar este item
-
TESSARO, ANA P.G.
; ARAUJO, LEANDRO G. de
; SILVA, THALITA T.
; COELHO, EDNEI; CORREA, BENEDITO; ROLINDO, NATALIE C.
; VICENTE, ROBERTO
.
Prospects for fungal bioremediation of unburied waste packages from the Goiânia radiological accident.
Environmental Science and Pollution Research,
v. 30,
n. 14,
p. 41045-41059,
2023.
DOI:
10.1007/s11356-023-25247-7
Abstract:
Goiânia, the Goiás State capital, starred in 1987, where one of the largest radiological accidents in the world happened. A teletherapy machine was subtracted from a derelict radiotherapy clinic and disassembled by scavengers who distributed fragments of the 50 TBq 137CsCl source among relatives and acquaintances, enchanted by the blue shine of the substance. During the 15 days before the accident was acknowledged, contaminated recycling materials were delivered to recycling factories in four cities in the state of São Paulo, Brazil, in the form of recycling paper bales. The contaminated bales were spotted, collected, and stored in fifty 1.6 m3 steel boxes at the interim storage facility of the Nuclear and Energy Research Institute (IPEN). In 2017, a check of the content was performed in a few boxes and the presence of high moisture content was observed even though the bales were dry when conditioned and the packages were kept sealed since then. The main objective of this work was to report the fungi found in the radioactive waste after they evolved for 30 years in isolation inside the waste boxes and their role in the decay of the waste. Examination of the microbiome showed the presence of nematodes and fungal communities. The fungi species isolated were Aspergillus quadricinctus, Fusarium oxysporum, Lecanicillium coprophilumi, Scedosporium boydii, Scytalidium lignicola, Xenoacremonium recifei, and Pleurostoma richardsiae. These microorganisms showed a significant capacity to digest cellulose in our trials, which could be one of the ways they survive in such a harsh environment, reducing the volume of radioactive paper waste. These metabolic abilities give us a future perspective of using these fungi in biotechnology to remediate radioactively contaminated materials, particularly cellulose-based waste.
Palavras-Chave:
radiation accidents;
cesium 137;
waste management;
fungi;
radioactive wastes;
brazil
TESSARO, ANA P.G.; ARAUJO, LEANDRO G. de; SILVA, THALITA T.; COELHO, EDNEI; CORREA, BENEDITO; ROLINDO, NATALIE C.; VICENTE, ROBERTO.
Prospects for fungal bioremediation of unburied waste packages from the Goiânia radiological accident.
Environmental Science and Pollution Research,
v. 30,
n. 14,
p. 41045-41059,
2023.
DOI:
10.1007/s11356-023-25247-7.
Disponível em: http://repositorio.ipen.br/handle/123456789/34011. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
Como referenciar este item
-
TESSARO, ANA P.G.
; ROLINDO, NATALIE C.
; MARUMO, JULIO T.
; VICENTE, ROBERTO
; LAS CASAS, ALEXANDRE
.
Use of ionizing radiation for treatment and extraction of organic compounds from petroleum sludge.
In: ANNUAL WASTE MANAGEMENT CONFERENCE, 45th,
March 3-7, 2019,
Phoenix, Arizona, USA.
Proceedings...
Tempe, Arizona, USA: Waste Management Symposia,
2019.
p. 1-7.
Abstract:
This 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.
Palavras-Chave:
chemical radiation effects;
electron beams;
feasibility studies;
inorganic compounds;
ionizing radiations;
organic compounds;
petroleum;
radiation doses;
sludges
TESSARO, ANA P.G.; ROLINDO, NATALIE C.; MARUMO, JULIO T.; VICENTE, ROBERTO; LAS CASAS, ALEXANDRE.
Use of ionizing radiation for treatment and extraction of organic compounds from petroleum sludge.
In:
ANNUAL WASTE MANAGEMENT CONFERENCE, 45th,
March 3-7, 2019,
Phoenix, Arizona, USA.
Proceedings...
Tempe, Arizona, USA: Waste Management Symposia,
2019.
p. 1-7.
Disponível em: http://repositorio.ipen.br/handle/123456789/31567. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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-
TESSARO, ANA P.G.
; GERALDO, BIANCA
; SOUZA, DAIANE C.B. de
; ROMERO, FERNANDA; BISURI, INDRANIL; MARUMO, JULIO T.
; CHEBERLE, LUAN T.V.; SACHDEVA, MAHIMA; ROSA, MYCHELLE M.L.; ROLINDO, NATALIE C.
; SMITH, RICARDO B.
; VICENTE, ROBERTO
; SALVETTI, TEREZA C.
.
Essays on nuclear energy and radioactive waste management.
São Paulo, SP: Gênio Criador Editora,
2021.
171 p.
Palavras-Chave:
radioactive wastes;
waste management;
nuclear energy
TESSARO, ANA P.G.; GERALDO, BIANCA; SOUZA, DAIANE C.B. de; ROMERO, FERNANDA; BISURI, INDRANIL; MARUMO, JULIO T.; CHEBERLE, LUAN T.V.; SACHDEVA, MAHIMA; ROSA, MYCHELLE M.L.; ROLINDO, NATALIE C.; SMITH, RICARDO B.; VICENTE, ROBERTO; SALVETTI, TEREZA C.
Essays on nuclear energy and radioactive waste management.
São Paulo, SP: Gênio Criador Editora,
2021.
171 p.
Disponível em: http://repositorio.ipen.br/handle/123456789/32626. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
Como referenciar este item
Buscar no repositório
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Minha conta
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A pesquisa no RD utiliza os recursos de busca da maioria das bases de dados. No entanto algumas dicas podem auxiliar para obter um resultado mais pertinente.
✔ É possível efetuar a busca de um autor ou um termo em todo o RD, por meio do
Buscar no Repositório
, isto é, o termo solicitado será localizado em qualquer campo do RD. No entanto esse tipo de pesquisa não é recomendada a não ser que se deseje um resultado amplo e generalizado.
✔ A pesquisa apresentará melhor resultado selecionando um dos filtros disponíveis em
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✔ Os filtros disponíveis em
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tais como: Coleções, Ano de publicação, Títulos, Assuntos, Autores, Revista, Tipo de publicação são autoexplicativos. O filtro,
Autores IPEN
apresenta uma relação com os autores vinculados ao IPEN; o
ID Autor IPEN
diz respeito ao número único de identificação de cada autor constante no RD e sob o qual estão agrupados todos os seus trabalhos independente das variáveis do seu nome;
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diz respeito à acessibilidade do documento, isto é , sujeito as leis de direitos autorais, ID RT apresenta a relação dos relatórios técnicos, restritos para consulta das comunidades indicadas.
A opção
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utiliza os conectores da lógica boleana, é o melhor recurso para combinar chaves de busca e obter documentos relevantes à sua pesquisa, utilize os filtros apresentados na caixa de seleção para refinar o resultado de busca. Pode-se adicionar vários filtros a uma mesma busca.
Exemplo:
Buscar os artigos apresentados em um evento internacional de 2015, sobre loss of coolant, do autor Maprelian.
Autor: Maprelian
Título: loss of coolant
Tipo de publicação: Texto completo de evento
Ano de publicação: 2015
✔ Para indexação dos documentos é utilizado o Thesaurus do INIS, especializado na área nuclear e utilizado em todos os países membros da
International Atomic Energy Agency – IAEA
, por esse motivo, utilize os termos de busca de assunto em inglês; isto não exclui a busca livre por palavras, apenas o resultado pode não ser tão relevante ou pertinente.
✔ 95% do RD apresenta o texto completo do documento com livre acesso, para aqueles que apresentam o
significa que e o documento está sujeito as leis de direitos autorais, solicita-se nesses casos contatar a Biblioteca do IPEN,
bibl@ipen.br
.
✔ Ao efetuar a busca por um autor o RD apresentará uma relação de todos os trabalhos depositados no RD. No lado direito da tela são apresentados os coautores com o número de trabalhos produzidos em conjunto bem como os assuntos abordados e os respectivos anos de publicação agrupados.
✔ O RD disponibiliza um quadro estatístico de produtividade, onde é possível visualizar o número dos trabalhos agrupados por tipo de coleção, a medida que estão sendo depositados no RD.
✔ Na página inicial nas referências são sinalizados todos os autores IPEN, ao clicar nesse símbolo
será aberta uma nova página correspondente à aquele autor – trata-se da página do pesquisador.
✔ Na página do pesquisador, é possível verificar, as variações do nome, a relação de todos os trabalhos com texto completo bem como um quadro resumo numérico; há links para o Currículo Lattes e o Google Acadêmico ( quando esse for informado).
ATENÇÃO!
ESTE TEXTO "AJUDA" ESTÁ SUJEITO A ATUALIZAÇÕES CONSTANTES, A MEDIDA QUE NOVAS FUNCIONALIDADES E RECURSOS DE BUSCA FOREM SENDO DESENVOLVIDOS PELAS EQUIPES DA BIBLIOTECA E DA INFORMÁTICA.
O gerenciamento do Repositório está a cargo da Biblioteca do IPEN. Constam neste RI, até o presente momento 20.950 itens que tanto podem ser artigos de periódicos ou de eventos nacionais e internacionais, dissertações e teses, livros, capítulo de livros e relatórios técnicos. Para participar do RI-IPEN é necessário que pelo menos um dos autores tenha vínculo acadêmico ou funcional com o Instituto. Nesta primeira etapa de funcionamento do RI, a coleta das publicações é realizada periodicamente pela equipe da Biblioteca do IPEN, extraindo os dados das bases internacionais tais como a Web of Science, Scopus, INIS, SciElo além de verificar o Currículo Lattes. O RI-IPEN apresenta também um aspecto inovador no seu funcionamento. Por meio de metadados específicos ele está vinculado ao sistema de gerenciamento das atividades do Plano Diretor anual do IPEN (SIGEPI). Com o objetivo de fornecer dados numéricos para a elaboração dos indicadores da Produção Cientifica Institucional, disponibiliza uma tabela estatística registrando em tempo real a inserção de novos itens. Foi criado um metadado que contém um número único para cada integrante da comunidade científica do IPEN. Esse metadado se transformou em um filtro que ao ser acionado apresenta todos os trabalhos de um determinado autor independente das variáveis na forma de citação do seu nome.
A elaboração do projeto do RI do IPEN foi iniciado em novembro de 2013, colocado em operação interna em julho de 2014 e disponibilizado na Internet em junho de 2015. Utiliza o software livre Dspace, desenvolvido pelo Massachusetts Institute of Technology (MIT). Para descrição dos metadados adota o padrão Dublin Core. É compatível com o Protocolo de Arquivos Abertos (OAI) permitindo interoperabilidade com repositórios de âmbito nacional e internacional.
1. Portaria IPEN-CNEN/SP nº 387, que estabeleceu os princípios que nortearam a criação do RDI,
clique aqui.
2. A experiência do Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP) na criação de um Repositório Digital Institucional – RDI,
clique aqui.
O Repositório Digital do IPEN é um equipamento institucional de acesso aberto, criado com o objetivo de reunir, preservar, disponibilizar e conferir maior visibilidade à Produção Científica publicada pelo Instituto, desde sua criação em 1956.
Operando, inicialmente como uma base de dados referencial o Repositório foi disponibilizado na atual plataforma, em junho de 2015. No Repositório está disponível o acesso ao conteúdo digital de artigos de periódicos, eventos, nacionais e internacionais, livros, capítulos, dissertações, teses e relatórios técnicos.
A elaboração do projeto do RI do IPEN foi iniciado em novembro de 2013, colocado em operação interna em julho de 2014 e disponibilizado na Internet em junho de 2015. Utiliza o software livre Dspace, desenvolvido pelo Massachusetts Institute of Technology (MIT). Para descrição dos metadados adota o padrão Dublin Core. É compatível com o Protocolo de Arquivos Abertos (OAI) permitindo interoperabilidade com repositórios de âmbito nacional e internacional.
O gerenciamento do Repositório está a cargo da Biblioteca do IPEN. Constam neste RI, até o presente momento 20.950 itens que tanto podem ser artigos de periódicos ou de eventos nacionais e internacionais, dissertações e teses, livros, capítulo de livros e relatórios técnicos. Para participar do RI-IPEN é necessário que pelo menos um dos autores tenha vínculo acadêmico ou funcional com o Instituto. Nesta primeira etapa de funcionamento do RI, a coleta das publicações é realizada periodicamente pela equipe da Biblioteca do IPEN, extraindo os dados das bases internacionais tais como a Web of Science, Scopus, INIS, SciElo além de verificar o Currículo Lattes. O RI-IPEN apresenta também um aspecto inovador no seu funcionamento. Por meio de metadados específicos ele está vinculado ao sistema de gerenciamento das atividades do Plano Diretor anual do IPEN (SIGEPI). Com o objetivo de fornecer dados numéricos para a elaboração dos indicadores da Produção Cientifica Institucional, disponibiliza uma tabela estatística registrando em tempo real a inserção de novos itens. Foi criado um metadado que contém um número único para cada integrante da comunidade científica do IPEN. Esse metadado se transformou em um filtro que ao ser acionado apresenta todos os trabalhos de um determinado autor independente das variáveis na forma de citação do seu nome.