Evaluating arsenic and manganese removal from water by chlorine oxidation followed by clarification.

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dc.contributor.authorPires, Viviane das Graças Rodrigues
dc.contributor.authorLima, Diego Roberto de Sousa
dc.contributor.authorAquino, Sergio Francisco de
dc.contributor.authorLibânio, Marcelo
dc.date.accessioned2016-01-28T14:35:26Z
dc.date.available2016-01-28T14:35:26Z
dc.date.issued2015
dc.description.abstractThis paper investigates the simultaneous removal of arsenic [As(V) or As(III)] and manganese [Mn(II)] from natural waters of low and high turbidity by clarification (with polyaluminum chloride and aluminum sulfate as primary coagulants) associated or not with chlorine pre-oxidation. The results showed that the clarification process exhibited low Mn(II) removal, that varied from 6% to 18% and from 19% to 27% for natural waters of low and high turbidity, respectively. The use of chlorine as pre-oxidant increased Mn(II) removal up to 77% and was associated with the formation of birnessite. Regarding As(V) removal by clarification, particularly for high turbidity water, a concentration lower than that established by the National Drinking Water Quality Standards (10 μg.L-1) was achieved in almost all tests. Oxidation preceding the clarification led to AsIII removal efficiencies from 80% to 90% for both coagulants and types of waterpt_BR
dc.identifier.citationPIRES, V. G. R. et al. Evaluating arsenic and manganese removal from water by chlorine oxidation followed by clarification. Brazilian Journal of Chemical Engineering, v. 32, n. 2, p. 409-419, 2015. Disponível em: <http://www.scielo.br/pdf/bjce/v32n2/0104-6632-bjce-32-2-0409.pdf>. Acesso em: 21 out. 2015.pt_BR
dc.identifier.doihttp://dx.doi.org/10.1590/0104-6632.20150322s00003564
dc.identifier.issn0104-6632
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/6259
dc.language.isopt_BRpt_BR
dc.rights.licenseTodo o conteúdo do periódico Brazilian Journal of Chemical Engineering, exceto onde identificado, está sob uma licença Creative Commons que permite copiar, distribuir e transmitir o trabalho em qualquer suporte ou formato desde que sejam citados o autor e o licenciante. Não permite o uso para fins comerciais. Fonte: Brazilian Journal of Chemical Engineering <http://www.scielo.br/scielo.php?script=sci_serial&pid=0104-6632&lng=en&nrm=iso>. Acesso em: 20 ago. 2019.pt_BR
dc.subjectArsenicpt_BR
dc.subjectManganesept_BR
dc.subjectClarificationpt_BR
dc.subjectOxidationpt_BR
dc.subjectWater treatmentpt_BR
dc.titleEvaluating arsenic and manganese removal from water by chlorine oxidation followed by clarification.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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