Nanofiltration of simulated acid mine drainage: Effect of pH and membrane charge

Detalhes bibliográficos
Autor(a) principal: Siew, Ye Wee
Data de Publicação: 2020
Outros Autores: Zedda, Karina Listiarini, Velizarov, Svetlozar
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/117040
Resumo: (FPA No 2011e0168, Ed. I, http://em3e-4sw.eu).
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spelling Nanofiltration of simulated acid mine drainage: Effect of pH and membrane chargeAcid mine drainageDonnan effectIon rejectionNanofiltrationMaterials Science(all)InstrumentationEngineering(all)Process Chemistry and TechnologyComputer Science ApplicationsFluid Flow and Transfer ProcessesSDG 12 - Responsible Consumption and Production(FPA No 2011e0168, Ed. I, http://em3e-4sw.eu).Acid mine drainage (AMD) is a severe form of environmental pollution that has the potential to contaminate surface and ground waters by introducing heavy metals and lowering the pH. The feasibility of using nanofiltration (NF) as a potentially attractive and cost-effective remediation method to treat acid mine drainage was investigated in this study. The performance of an acid-stable NF membrane focusing on the effects of the water pH and membrane charge on ion rejection was systematically studied. A single salt solution experiment showed that Mg, Cu, and Mn containing species were highly rejected at above 97%. Below the membrane iso-electric point (IEP), Mn showed an increased rejection of 99%, while Mg and Mn rejections were relatively constant within the investigated pH range of pH 2 to 7. Rejection of monovalent Cl- decreased with increasing concentration of an accompanying divalent SO4 2-, showing that Donnan related effects are more prominent at higher ionic concentrations. The sulfate rejection decreased drastically below pH 3 due to the formation of HSO4 -, which permeated through the membrane, which can be utilized as a way of separation of the metals from the accompanying sulfur-containing compounds. For mixed salt solutions, rejection of silicate dropped from 52% to 38% when magnesium sulfate was added, owing to shielding of the membrane surface charge by Mg2+ ions. The NF process performance with a simulated AMD solution was found to be similar to that with model salt solution experiments, both in terms of ion rejection values and general pH-dependent rejection trends. The results obtained can be used as a fast preliminary tool for evaluating the feasibility of using NF for treating AMD with a given ionic composition and pH.DQ - Departamento de QuímicaLAQV@REQUIMTERUNSiew, Ye WeeZedda, Karina ListiariniVelizarov, Svetlozar2021-05-04T22:57:03Z2020-01-052020-01-05T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/117040eng2076-3417PURE: 28469677https://doi.org/10.3390/app10010400info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:00:00Zoai:run.unl.pt:10362/117040Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:43:26.618834Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Nanofiltration of simulated acid mine drainage: Effect of pH and membrane charge
title Nanofiltration of simulated acid mine drainage: Effect of pH and membrane charge
spellingShingle Nanofiltration of simulated acid mine drainage: Effect of pH and membrane charge
Siew, Ye Wee
Acid mine drainage
Donnan effect
Ion rejection
Nanofiltration
Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes
SDG 12 - Responsible Consumption and Production
title_short Nanofiltration of simulated acid mine drainage: Effect of pH and membrane charge
title_full Nanofiltration of simulated acid mine drainage: Effect of pH and membrane charge
title_fullStr Nanofiltration of simulated acid mine drainage: Effect of pH and membrane charge
title_full_unstemmed Nanofiltration of simulated acid mine drainage: Effect of pH and membrane charge
title_sort Nanofiltration of simulated acid mine drainage: Effect of pH and membrane charge
author Siew, Ye Wee
author_facet Siew, Ye Wee
Zedda, Karina Listiarini
Velizarov, Svetlozar
author_role author
author2 Zedda, Karina Listiarini
Velizarov, Svetlozar
author2_role author
author
dc.contributor.none.fl_str_mv DQ - Departamento de Química
LAQV@REQUIMTE
RUN
dc.contributor.author.fl_str_mv Siew, Ye Wee
Zedda, Karina Listiarini
Velizarov, Svetlozar
dc.subject.por.fl_str_mv Acid mine drainage
Donnan effect
Ion rejection
Nanofiltration
Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes
SDG 12 - Responsible Consumption and Production
topic Acid mine drainage
Donnan effect
Ion rejection
Nanofiltration
Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes
SDG 12 - Responsible Consumption and Production
description (FPA No 2011e0168, Ed. I, http://em3e-4sw.eu).
publishDate 2020
dc.date.none.fl_str_mv 2020-01-05
2020-01-05T00:00:00Z
2021-05-04T22:57:03Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/117040
url http://hdl.handle.net/10362/117040
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2076-3417
PURE: 28469677
https://doi.org/10.3390/app10010400
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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