Evaluation of biological wastewater treatment process using Mahalanobis distances in original and principal component space: a case study

dc.contributor.authorPraus, Petr
dc.date.accessioned2018-10-09T11:06:29Z
dc.date.available2018-10-09T11:06:29Z
dc.date.issued2018
dc.description.abstractThe evaluation of wastewaters treated by biological wastewater treatment plant was performed using multivariate analysis. The samples taken during 1 year were characterized by the Mahalanobis distances (MDs) calculated from 11 original parameters and 4 principal components extracted by principal component analysis. The principal components were interpreted using Ward's hierarchical clustering analysis and factor analysis. Statistical processing of the samples by means of the MDs calculated in the original and PC space was found to be complementary. Since MDs were not normally distributed, the statistical analysis of their log-transformed values (logMDs) was preferred to common Hotelling's or Chi-squared statistics of MD2 ones. The outliers were confirmed by Ward's method and by inspection of their chemical composition. In contrast to complexity and different magnitudes of the original wastewater parameters, the logMD charts provided a simple and effective tool for the evaluation of biological wastewater treatment process.cs
dc.description.firstpageart. no. UNSP 167cs
dc.description.issue6cs
dc.description.sourceWeb of Sciencecs
dc.description.volume8cs
dc.format.extent1823874 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.citationApplied Water Science. 2018, vol. 8, issue 6, art. no. UNSP 167.cs
dc.identifier.doi10.1007/s13201-018-0794-7
dc.identifier.issn2190-5487
dc.identifier.issn2190-5495
dc.identifier.urihttp://hdl.handle.net/10084/132628
dc.identifier.wos000445184100001
dc.language.isoencs
dc.publisherSpringercs
dc.relation.ispartofseriesApplied Water Sciencecs
dc.relation.urihttps://doi.org/10.1007/s13201-018-0794-7cs
dc.rights© The Author(s) 2018cs
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
dc.rights.accessopenAccesscs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectstatistical evaluationcs
dc.subjectbiological wastewater treatmentcs
dc.subjectMahalanobis distancecs
dc.subjectprincipal component analysiscs
dc.titleEvaluation of biological wastewater treatment process using Mahalanobis distances in original and principal component space: a case studycs
dc.typearticlecs
dc.type.statusPeer-reviewedcs
dc.type.versionpublishedVersioncs

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