Construction of control charts to help in the stability and reliability of results in an accredited water quality control laboratory
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/20.500.12207/5670 |
Resumo: | Overall, laboratory water quality analysis must have stability in their results, especially in laboratories accredited by ISO 17025. Accredited parameters should be strictly reliable. Using control charts to ascertain divergences between results is thus very useful. The present work applied a methodology of analysis of results through control charts to accurately monitor the results for a wastewater treatment plant. The parameters analyzed were pH, BOD5, COD, total suspended solids, and total phosphorus. The stability of the results was analyzed from the control charts and 30 analyses performed in the last 12 months. From the results, it was possible to observe whether the results are stable, according to the rehabilitation factor that cannot exceed WN = 1.00 and the efficiency of removal of pollutants that remained above 70% for all parameters. The method of determining the technological reliability and stability of the treatment station using control charts is an efficient tool for detecting any instability in the results. These results help to monitor the results of the analyses more clearly and thus enable a rapid response to possible disturbances and maintain the quality of the analysis control, as well as determining the accreditation entities. |
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Construction of control charts to help in the stability and reliability of results in an accredited water quality control laboratoryWater qualityControl chartsReliabilityWastewater treatmentOverall, laboratory water quality analysis must have stability in their results, especially in laboratories accredited by ISO 17025. Accredited parameters should be strictly reliable. Using control charts to ascertain divergences between results is thus very useful. The present work applied a methodology of analysis of results through control charts to accurately monitor the results for a wastewater treatment plant. The parameters analyzed were pH, BOD5, COD, total suspended solids, and total phosphorus. The stability of the results was analyzed from the control charts and 30 analyses performed in the last 12 months. From the results, it was possible to observe whether the results are stable, according to the rehabilitation factor that cannot exceed WN = 1.00 and the efficiency of removal of pollutants that remained above 70% for all parameters. The method of determining the technological reliability and stability of the treatment station using control charts is an efficient tool for detecting any instability in the results. These results help to monitor the results of the analyses more clearly and thus enable a rapid response to possible disturbances and maintain the quality of the analysis control, as well as determining the accreditation entities.MDPI2022-11-28T11:47:06Z2022-11-18T00:00:00Z2022-11-18info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.12207/5670eng2071-1050https://doi.org/10.3390/su142215392Silva, Flávia Matias OliveiraSilvério, Karina SantosRaposo, MarianaCastanheira, Maria IvoneImaginario, Maria JoséSimões, IsabelAlmeida, Maria Adelaideinfo: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:RCAAP2022-12-01T07:45:13Zoai:repositorio.ipbeja.pt:20.500.12207/5670Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:15:10.388130Repositório 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 |
Construction of control charts to help in the stability and reliability of results in an accredited water quality control laboratory |
title |
Construction of control charts to help in the stability and reliability of results in an accredited water quality control laboratory |
spellingShingle |
Construction of control charts to help in the stability and reliability of results in an accredited water quality control laboratory Silva, Flávia Matias Oliveira Water quality Control charts Reliability Wastewater treatment |
title_short |
Construction of control charts to help in the stability and reliability of results in an accredited water quality control laboratory |
title_full |
Construction of control charts to help in the stability and reliability of results in an accredited water quality control laboratory |
title_fullStr |
Construction of control charts to help in the stability and reliability of results in an accredited water quality control laboratory |
title_full_unstemmed |
Construction of control charts to help in the stability and reliability of results in an accredited water quality control laboratory |
title_sort |
Construction of control charts to help in the stability and reliability of results in an accredited water quality control laboratory |
author |
Silva, Flávia Matias Oliveira |
author_facet |
Silva, Flávia Matias Oliveira Silvério, Karina Santos Raposo, Mariana Castanheira, Maria Ivone Imaginario, Maria José Simões, Isabel Almeida, Maria Adelaide |
author_role |
author |
author2 |
Silvério, Karina Santos Raposo, Mariana Castanheira, Maria Ivone Imaginario, Maria José Simões, Isabel Almeida, Maria Adelaide |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Silva, Flávia Matias Oliveira Silvério, Karina Santos Raposo, Mariana Castanheira, Maria Ivone Imaginario, Maria José Simões, Isabel Almeida, Maria Adelaide |
dc.subject.por.fl_str_mv |
Water quality Control charts Reliability Wastewater treatment |
topic |
Water quality Control charts Reliability Wastewater treatment |
description |
Overall, laboratory water quality analysis must have stability in their results, especially in laboratories accredited by ISO 17025. Accredited parameters should be strictly reliable. Using control charts to ascertain divergences between results is thus very useful. The present work applied a methodology of analysis of results through control charts to accurately monitor the results for a wastewater treatment plant. The parameters analyzed were pH, BOD5, COD, total suspended solids, and total phosphorus. The stability of the results was analyzed from the control charts and 30 analyses performed in the last 12 months. From the results, it was possible to observe whether the results are stable, according to the rehabilitation factor that cannot exceed WN = 1.00 and the efficiency of removal of pollutants that remained above 70% for all parameters. The method of determining the technological reliability and stability of the treatment station using control charts is an efficient tool for detecting any instability in the results. These results help to monitor the results of the analyses more clearly and thus enable a rapid response to possible disturbances and maintain the quality of the analysis control, as well as determining the accreditation entities. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-28T11:47:06Z 2022-11-18T00:00:00Z 2022-11-18 |
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 |
https://hdl.handle.net/20.500.12207/5670 |
url |
https://hdl.handle.net/20.500.12207/5670 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2071-1050 https://doi.org/10.3390/su142215392 |
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.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
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 |
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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) |
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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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1799130606626406400 |