Membranes technology used in water treatment: Chemical, microbiological and ecotoxicological analysis
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/20.500.12207/4504 |
Resumo: | The increment of world's Human population, with the consequent demand for water supply, plus the need for sustainable development and the conservation of water resources, highlights the urgency of improving water treatment technologies and management actions. The aim of the present study was to characterize and evaluate the efficiency of nanofiltration (NF90, NF270) and reverse osmosis (SW30) membranes, in improving the quality of three types of waters: irrigation, municipal supply and wastewater. The efficiency of using this technology was assessed by: (i) the study of water permeability and rejection of some chemical parameters, such as total nitrogen, total phosphorus, chemical oxygen demand (COD), biochemical oxygen demand (BOD5), feacal coliforms, nitrates, chlorides, iron and manganese; and (ii) the evaluation of their ecotoxicological effects, through the use of representative species of different taxonomic and functional groups (Vibrio fischeri, Thamnocephalus platyurus, Daphnia magna, and Pseudokirchneriella subcapitata). Results indicated that all three membranes have high rejection percentages for the majority of the studied parameters (>Â 90%). All parameters concentrations in the permeate stream were below the limit values from Portuguese legislation and European Directives. With respect to the ecotoxicological effects, in general, the use of membranes removed the toxicity detected in the initial samples (which exhibited significant toxicity). The SW30 membrane showed a greater efficiency for toxicity removal, comparing with the nanofiltration membranes. Further, among the nanofiltration membranes used, the NF90 promoted a greater decrease in the toxicity of the samples. Thus, treatment with the membranes NF90 and SW30 allowed obtaining waters with high quality and low ecotoxicological potential, without risks for human populations and endangering the environmental balance. |
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Membranes technology used in water treatment: Chemical, microbiological and ecotoxicological analysisBiochemical oxygen demandChemical analysisChemical oxygen demandChlorine compoundsEfficiencyLaws and legislationMembrane technologyMembranesNanofiltrationOsmosis membranesParameter estimationQuality controlReverse osmosisSustainable developmentToxicityWastewater treatmentWater conservationWater filtrationWater qualityWater resourcesWater supplyWater treatmentThe increment of world's Human population, with the consequent demand for water supply, plus the need for sustainable development and the conservation of water resources, highlights the urgency of improving water treatment technologies and management actions. The aim of the present study was to characterize and evaluate the efficiency of nanofiltration (NF90, NF270) and reverse osmosis (SW30) membranes, in improving the quality of three types of waters: irrigation, municipal supply and wastewater. The efficiency of using this technology was assessed by: (i) the study of water permeability and rejection of some chemical parameters, such as total nitrogen, total phosphorus, chemical oxygen demand (COD), biochemical oxygen demand (BOD5), feacal coliforms, nitrates, chlorides, iron and manganese; and (ii) the evaluation of their ecotoxicological effects, through the use of representative species of different taxonomic and functional groups (Vibrio fischeri, Thamnocephalus platyurus, Daphnia magna, and Pseudokirchneriella subcapitata). Results indicated that all three membranes have high rejection percentages for the majority of the studied parameters (> 90%). All parameters concentrations in the permeate stream were below the limit values from Portuguese legislation and European Directives. With respect to the ecotoxicological effects, in general, the use of membranes removed the toxicity detected in the initial samples (which exhibited significant toxicity). The SW30 membrane showed a greater efficiency for toxicity removal, comparing with the nanofiltration membranes. Further, among the nanofiltration membranes used, the NF90 promoted a greater decrease in the toxicity of the samples. Thus, treatment with the membranes NF90 and SW30 allowed obtaining waters with high quality and low ecotoxicological potential, without risks for human populations and endangering the environmental balance.Elsevier2017-03-30T10:13:12Z2016-10-01T00:00:00Z2016-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/20.500.12207/4504eng00489697http://dx.doi.org/10.1016/j.scitotenv.2016.04.208metadata only accessinfo:eu-repo/semantics/openAccessPalma, PatríciaFialho, S.Alvarenga, PaulaSantos, C.Brás, T.Palma, G.Cavaco, C.Gomes, R.Neves, L. A.reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-06-23T07:46:53Zoai:repositorio.ipbeja.pt:20.500.12207/4504Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T14:58:39.634568Repositório 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 |
Membranes technology used in water treatment: Chemical, microbiological and ecotoxicological analysis |
title |
Membranes technology used in water treatment: Chemical, microbiological and ecotoxicological analysis |
spellingShingle |
Membranes technology used in water treatment: Chemical, microbiological and ecotoxicological analysis Palma, Patrícia Biochemical oxygen demand Chemical analysis Chemical oxygen demand Chlorine compounds Efficiency Laws and legislation Membrane technology Membranes Nanofiltration Osmosis membranes Parameter estimation Quality control Reverse osmosis Sustainable development Toxicity Wastewater treatment Water conservation Water filtration Water quality Water resources Water supply Water treatment |
title_short |
Membranes technology used in water treatment: Chemical, microbiological and ecotoxicological analysis |
title_full |
Membranes technology used in water treatment: Chemical, microbiological and ecotoxicological analysis |
title_fullStr |
Membranes technology used in water treatment: Chemical, microbiological and ecotoxicological analysis |
title_full_unstemmed |
Membranes technology used in water treatment: Chemical, microbiological and ecotoxicological analysis |
title_sort |
Membranes technology used in water treatment: Chemical, microbiological and ecotoxicological analysis |
author |
Palma, Patrícia |
author_facet |
Palma, Patrícia Fialho, S. Alvarenga, Paula Santos, C. Brás, T. Palma, G. Cavaco, C. Gomes, R. Neves, L. A. |
author_role |
author |
author2 |
Fialho, S. Alvarenga, Paula Santos, C. Brás, T. Palma, G. Cavaco, C. Gomes, R. Neves, L. A. |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Palma, Patrícia Fialho, S. Alvarenga, Paula Santos, C. Brás, T. Palma, G. Cavaco, C. Gomes, R. Neves, L. A. |
dc.subject.por.fl_str_mv |
Biochemical oxygen demand Chemical analysis Chemical oxygen demand Chlorine compounds Efficiency Laws and legislation Membrane technology Membranes Nanofiltration Osmosis membranes Parameter estimation Quality control Reverse osmosis Sustainable development Toxicity Wastewater treatment Water conservation Water filtration Water quality Water resources Water supply Water treatment |
topic |
Biochemical oxygen demand Chemical analysis Chemical oxygen demand Chlorine compounds Efficiency Laws and legislation Membrane technology Membranes Nanofiltration Osmosis membranes Parameter estimation Quality control Reverse osmosis Sustainable development Toxicity Wastewater treatment Water conservation Water filtration Water quality Water resources Water supply Water treatment |
description |
The increment of world's Human population, with the consequent demand for water supply, plus the need for sustainable development and the conservation of water resources, highlights the urgency of improving water treatment technologies and management actions. The aim of the present study was to characterize and evaluate the efficiency of nanofiltration (NF90, NF270) and reverse osmosis (SW30) membranes, in improving the quality of three types of waters: irrigation, municipal supply and wastewater. The efficiency of using this technology was assessed by: (i) the study of water permeability and rejection of some chemical parameters, such as total nitrogen, total phosphorus, chemical oxygen demand (COD), biochemical oxygen demand (BOD5), feacal coliforms, nitrates, chlorides, iron and manganese; and (ii) the evaluation of their ecotoxicological effects, through the use of representative species of different taxonomic and functional groups (Vibrio fischeri, Thamnocephalus platyurus, Daphnia magna, and Pseudokirchneriella subcapitata). Results indicated that all three membranes have high rejection percentages for the majority of the studied parameters (>Â 90%). All parameters concentrations in the permeate stream were below the limit values from Portuguese legislation and European Directives. With respect to the ecotoxicological effects, in general, the use of membranes removed the toxicity detected in the initial samples (which exhibited significant toxicity). The SW30 membrane showed a greater efficiency for toxicity removal, comparing with the nanofiltration membranes. Further, among the nanofiltration membranes used, the NF90 promoted a greater decrease in the toxicity of the samples. Thus, treatment with the membranes NF90 and SW30 allowed obtaining waters with high quality and low ecotoxicological potential, without risks for human populations and endangering the environmental balance. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-10-01T00:00:00Z 2016-10-01T00:00:00Z 2017-03-30T10:13:12Z |
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/20.500.12207/4504 |
url |
http://hdl.handle.net/20.500.12207/4504 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
00489697 http://dx.doi.org/10.1016/j.scitotenv.2016.04.208 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799129860368498688 |