Bentonite and Montmorillonite maturation with Águas de Lindóia, Peruíbe and Poços de Caldas waters

This study aims to characterize the artificial peloid obtained by maturing bentonite and montmorillonite with Águas de Lindóia, Poços de Caldas and Peruíbe water for three months. The pH, moisture, organic matter content, loss on ignition and swelling power of matured and non-matured samples were m...

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Main Authors: Jefferson Koyaishi Torrecilha, Fabio Tadeu Lazzerini, Paulo Sergio Cardoso da Silva
Format: Article
Language:English
Published: Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) 2019-02-01
Series:Brazilian Journal of Radiation Sciences
Subjects:
Online Access:https://bjrs.org.br/revista/index.php/REVISTA/article/view/670
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author Jefferson Koyaishi Torrecilha
Fabio Tadeu Lazzerini
Paulo Sergio Cardoso da Silva
author_facet Jefferson Koyaishi Torrecilha
Fabio Tadeu Lazzerini
Paulo Sergio Cardoso da Silva
author_sort Jefferson Koyaishi Torrecilha
collection DOAJ
description This study aims to characterize the artificial peloid obtained by maturing bentonite and montmorillonite with Águas de Lindóia, Poços de Caldas and Peruíbe water for three months. The pH, moisture, organic matter content, loss on ignition and swelling power of matured and non-matured samples were measured for physicochemical characterization. The elemental concentration was determined by instrumental neutron activation analysis. Results showed that pH, moisture (%) and LOI (%) at 1000 ºC did not changed after maturation for all samples and an increase in the organic matter (%) was noted for all samples, mainly in the peloids treated with Peruíbe sea water. The concentration of As, Ba, Br, Ca, Ce, Co, Cr, Cs, K, La, Na, Yb and Zn has changed after the maturation process in both clays and the Br and Na concentration has changed in both clays when matured with sea water from Peruíbe.
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spelling doaj.art-eaa5b83b7d47431f85a6664454aa17382022-12-22T02:36:03ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122019-02-0172A10.15392/bjrs.v7i2A.670Bentonite and Montmorillonite maturation with Águas de Lindóia, Peruíbe and Poços de Caldas watersJefferson Koyaishi Torrecilha0Fabio Tadeu LazzeriniPaulo Sergio Cardoso da Silva1Universidade de São PauloUniversidade de São Paulo This study aims to characterize the artificial peloid obtained by maturing bentonite and montmorillonite with Águas de Lindóia, Poços de Caldas and Peruíbe water for three months. The pH, moisture, organic matter content, loss on ignition and swelling power of matured and non-matured samples were measured for physicochemical characterization. The elemental concentration was determined by instrumental neutron activation analysis. Results showed that pH, moisture (%) and LOI (%) at 1000 ºC did not changed after maturation for all samples and an increase in the organic matter (%) was noted for all samples, mainly in the peloids treated with Peruíbe sea water. The concentration of As, Ba, Br, Ca, Ce, Co, Cr, Cs, K, La, Na, Yb and Zn has changed after the maturation process in both clays and the Br and Na concentration has changed in both clays when matured with sea water from Peruíbe. https://bjrs.org.br/revista/index.php/REVISTA/article/view/670Bentonite maturationMontmorillonite maturationPeloids
spellingShingle Jefferson Koyaishi Torrecilha
Fabio Tadeu Lazzerini
Paulo Sergio Cardoso da Silva
Bentonite and Montmorillonite maturation with Águas de Lindóia, Peruíbe and Poços de Caldas waters
Brazilian Journal of Radiation Sciences
Bentonite maturation
Montmorillonite maturation
Peloids
title Bentonite and Montmorillonite maturation with Águas de Lindóia, Peruíbe and Poços de Caldas waters
title_full Bentonite and Montmorillonite maturation with Águas de Lindóia, Peruíbe and Poços de Caldas waters
title_fullStr Bentonite and Montmorillonite maturation with Águas de Lindóia, Peruíbe and Poços de Caldas waters
title_full_unstemmed Bentonite and Montmorillonite maturation with Águas de Lindóia, Peruíbe and Poços de Caldas waters
title_short Bentonite and Montmorillonite maturation with Águas de Lindóia, Peruíbe and Poços de Caldas waters
title_sort bentonite and montmorillonite maturation with aguas de lindoia peruibe and pocos de caldas waters
topic Bentonite maturation
Montmorillonite maturation
Peloids
url https://bjrs.org.br/revista/index.php/REVISTA/article/view/670
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