Naturally-Occurring Radioactive Materials at water treatment plant on the Poços de Caldas Plateau Region, Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Engenharia Sanitaria e Ambiental |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-41522022000100103 |
Resumo: | ABSTRACT Oil and gas, mining, among others, are examples of facilities where naturally occurring radioactive materials can be found. This study aims to evaluate the presence of natural radioactive series, especially those of 238U and 232Th, in the water treatment plants of Poços de Caldas City, Minas Gerais. The presence of these series was investigated in samples of raw water, treated water, sludge from decanters, and scale from Parshall gutters. The sludge, input, and scale samples were submitted to the gamma spectrometry technique to determine the 226Ra, 228Ra, and 210Pb radionuclides. For U and Th, ultraviolet visible spectrophotometry was performed, and for the alpha and beta total values, radiochemical separation and subsequent alpha and beta total counts were performed. The results indicate that water samples are within the Ministry of Health Ordinance n° 5 (2017). Due to the different concentrations of radionuclide activity in the sludge, it was not possible to affirm the same order of magnitude with the sediment from the catchments. However, the values are in accordance with those established by the European Union Council for Naturally-Occurring Radioactive Materials. In the scale, the contents of 1192, 1704, and 301 Bq kg−1 were identified for 226Ra, 228Ra, and 210Pb, respectively. In the inputs of aluminum sulfate and calcium hydroxide, no relevant activities were identified. The results obtained in the study can serve as an indicative regarding the need for a more detailed evaluation of the radiological issue in question concerning public water supplies. |
id |
ABES-1_2aab1897ec0029b65f2f629a57b7883a |
---|---|
oai_identifier_str |
oai:scielo:S1413-41522022000100103 |
network_acronym_str |
ABES-1 |
network_name_str |
Engenharia Sanitaria e Ambiental |
repository_id_str |
|
spelling |
Naturally-Occurring Radioactive Materials at water treatment plant on the Poços de Caldas Plateau Region, Brazilnormuraniumradiumwater treatmentsludgeABSTRACT Oil and gas, mining, among others, are examples of facilities where naturally occurring radioactive materials can be found. This study aims to evaluate the presence of natural radioactive series, especially those of 238U and 232Th, in the water treatment plants of Poços de Caldas City, Minas Gerais. The presence of these series was investigated in samples of raw water, treated water, sludge from decanters, and scale from Parshall gutters. The sludge, input, and scale samples were submitted to the gamma spectrometry technique to determine the 226Ra, 228Ra, and 210Pb radionuclides. For U and Th, ultraviolet visible spectrophotometry was performed, and for the alpha and beta total values, radiochemical separation and subsequent alpha and beta total counts were performed. The results indicate that water samples are within the Ministry of Health Ordinance n° 5 (2017). Due to the different concentrations of radionuclide activity in the sludge, it was not possible to affirm the same order of magnitude with the sediment from the catchments. However, the values are in accordance with those established by the European Union Council for Naturally-Occurring Radioactive Materials. In the scale, the contents of 1192, 1704, and 301 Bq kg−1 were identified for 226Ra, 228Ra, and 210Pb, respectively. In the inputs of aluminum sulfate and calcium hydroxide, no relevant activities were identified. The results obtained in the study can serve as an indicative regarding the need for a more detailed evaluation of the radiological issue in question concerning public water supplies.Associação Brasileira de Engenharia Sanitária e Ambiental - ABES2022-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-41522022000100103Engenharia Sanitaria e Ambiental v.27 n.1 2022reponame:Engenharia Sanitaria e Ambientalinstname:Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)instacron:ABES10.1590/s1413-415220200044info:eu-repo/semantics/openAccessFerreira,Adriano MotaFukuma,Henrique TakujiMoura,Rafael Brito deSilveira,AlexandreTiezzi,Rafael OliveiraVillegas,Raul Alberto Sodréeng2022-03-21T00:00:00Zoai:scielo:S1413-41522022000100103Revistahttp://www.scielo.br/esaONGhttps://old.scielo.br/oai/scielo-oai.php||esa@abes-dn.org.br1809-44571413-4152opendoar:2022-03-21T00:00Engenharia Sanitaria e Ambiental - Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)false |
dc.title.none.fl_str_mv |
Naturally-Occurring Radioactive Materials at water treatment plant on the Poços de Caldas Plateau Region, Brazil |
title |
Naturally-Occurring Radioactive Materials at water treatment plant on the Poços de Caldas Plateau Region, Brazil |
spellingShingle |
Naturally-Occurring Radioactive Materials at water treatment plant on the Poços de Caldas Plateau Region, Brazil Ferreira,Adriano Mota norm uranium radium water treatment sludge |
title_short |
Naturally-Occurring Radioactive Materials at water treatment plant on the Poços de Caldas Plateau Region, Brazil |
title_full |
Naturally-Occurring Radioactive Materials at water treatment plant on the Poços de Caldas Plateau Region, Brazil |
title_fullStr |
Naturally-Occurring Radioactive Materials at water treatment plant on the Poços de Caldas Plateau Region, Brazil |
title_full_unstemmed |
Naturally-Occurring Radioactive Materials at water treatment plant on the Poços de Caldas Plateau Region, Brazil |
title_sort |
Naturally-Occurring Radioactive Materials at water treatment plant on the Poços de Caldas Plateau Region, Brazil |
author |
Ferreira,Adriano Mota |
author_facet |
Ferreira,Adriano Mota Fukuma,Henrique Takuji Moura,Rafael Brito de Silveira,Alexandre Tiezzi,Rafael Oliveira Villegas,Raul Alberto Sodré |
author_role |
author |
author2 |
Fukuma,Henrique Takuji Moura,Rafael Brito de Silveira,Alexandre Tiezzi,Rafael Oliveira Villegas,Raul Alberto Sodré |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Ferreira,Adriano Mota Fukuma,Henrique Takuji Moura,Rafael Brito de Silveira,Alexandre Tiezzi,Rafael Oliveira Villegas,Raul Alberto Sodré |
dc.subject.por.fl_str_mv |
norm uranium radium water treatment sludge |
topic |
norm uranium radium water treatment sludge |
description |
ABSTRACT Oil and gas, mining, among others, are examples of facilities where naturally occurring radioactive materials can be found. This study aims to evaluate the presence of natural radioactive series, especially those of 238U and 232Th, in the water treatment plants of Poços de Caldas City, Minas Gerais. The presence of these series was investigated in samples of raw water, treated water, sludge from decanters, and scale from Parshall gutters. The sludge, input, and scale samples were submitted to the gamma spectrometry technique to determine the 226Ra, 228Ra, and 210Pb radionuclides. For U and Th, ultraviolet visible spectrophotometry was performed, and for the alpha and beta total values, radiochemical separation and subsequent alpha and beta total counts were performed. The results indicate that water samples are within the Ministry of Health Ordinance n° 5 (2017). Due to the different concentrations of radionuclide activity in the sludge, it was not possible to affirm the same order of magnitude with the sediment from the catchments. However, the values are in accordance with those established by the European Union Council for Naturally-Occurring Radioactive Materials. In the scale, the contents of 1192, 1704, and 301 Bq kg−1 were identified for 226Ra, 228Ra, and 210Pb, respectively. In the inputs of aluminum sulfate and calcium hydroxide, no relevant activities were identified. The results obtained in the study can serve as an indicative regarding the need for a more detailed evaluation of the radiological issue in question concerning public water supplies. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-41522022000100103 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-41522022000100103 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1413-415220200044 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Sanitária e Ambiental - ABES |
publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Sanitária e Ambiental - ABES |
dc.source.none.fl_str_mv |
Engenharia Sanitaria e Ambiental v.27 n.1 2022 reponame:Engenharia Sanitaria e Ambiental instname:Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) instacron:ABES |
instname_str |
Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
instacron_str |
ABES |
institution |
ABES |
reponame_str |
Engenharia Sanitaria e Ambiental |
collection |
Engenharia Sanitaria e Ambiental |
repository.name.fl_str_mv |
Engenharia Sanitaria e Ambiental - Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
repository.mail.fl_str_mv |
||esa@abes-dn.org.br |
_version_ |
1754213197190004736 |