Biofilm formation at a household drinking water multistage filtration system

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dc.contributor.affiliationUniversidad de Medellín, Medellin, Colombia
dc.contributor.affiliationUniversidad Autónoma de Coahuila, Coahuila, Mexico
dc.contributor.authorL.J., Montoya, Luis Javier
dc.contributor.authorV., Valencia-Gallego, Verónica
dc.contributor.authorD., Rodríguez, Diana
dc.contributor.authorM.M., Hincapié, Margarita M.
dc.contributor.authorL.R., Botero, Liliana Rocío
dc.contributor.authorL., Galeano, Laila
dc.contributor.authorG.I., Carvajal, Gloria I.
dc.date.accessioned2025-12-03T19:34:47Z
dc.date.available2025-12-03T19:34:47Z
dc.date.issued2025
dc.descriptionThe drinking water supply in rural communities needs efficient, appropriate, low-cost, and adaptable technologies to local conditions. This research investigates a household prefiltration system composed of a dynamic gravel filter, a rapid sand filter, and a slow sand filter. This study evaluates the under varying turbidity, organic carbon, and microbial contamination conditions. Kaolin and humic acids were used to simulate natural turbidity and organic matter, while E. coli served as an indicator of microbiological contamination. Analytical methods included turbidity measurement via turbidimeters, total organic carbon (TOC) analysis, and membrane filtration for E. coli quantification. The system was operated to treat between 20 L of water in batch tests and 250 L/day in continuous operation tests. The system was tested over 73 days under continuous operation, with results demonstrating progressive improvements in turbidity and E. coli removal, reaching turbidity removal of 78% and E. coli reduction of 0.9–0.3 log. Additionally, microbial community analysis in biofilms revealed diverse bacterial and protozoan populations contributing to filter maturation. Despite effective turbidity and microbial reduction, additional disinfection steps may be necessary to ensure complete microbiological safety. Overall, the study supports the viability of multistage filtration as a sustainable household water treatment alternative. © 2025 Elsevier B.V., All rights reserved.
dc.identifier.doi10.1007/s13201-025-02563-6
dc.identifier.instnameinstname:Universidad de Medellínspa
dc.identifier.issn21905487
dc.identifier.issn21905495
dc.identifier.reponamereponame:Repositorio Institucional Universidad de Medellínspa
dc.identifier.repourlrepourl:https://repository.udem.edu.co/
dc.identifier.urihttp://hdl.handle.net/11407/9250
dc.language.isoeng
dc.publisher.facultyFacultad de Ingenieríasspa
dc.publisher.programIngeniería Civil-Ingeniería Ambientalspa
dc.relation.citationissue9
dc.relation.citationvolume15
dc.relation.isversionofhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-105014905998&doi=10.1007%2Fs13201-025-02563-6&partnerID=40&md5=c4e1c034bfd179d0a64b1e784db66190
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dc.rights.accesoRestricted access
dc.rights.accessrightsinfo:eu-repo/semantics/restrictedAccess
dc.sourceApplied Water Science
dc.sourceScopus
dc.subjectBiofilm (schmutzdecke)
dc.subjectDrinking Water
dc.subjectHousehold Multistage Filtration
dc.subjectPrefiltration
dc.subjectTurbidity Removal
dc.subjectBiological Materials
dc.subjectContamination
dc.subjectMicrofiltration
dc.subjectMining Laws And Regulations
dc.subjectOrganic Carbon
dc.subjectPassive Filters
dc.subjectProtozoa
dc.subjectTurbidimeters
dc.subjectTurbidity
dc.subjectWater Conservation
dc.subjectWater Filtration
dc.subjectWater Treatment
dc.subjectBiofilm (schmutzdecke)
dc.subjectBiofilm Formation
dc.subjectContinuous Operation
dc.subjectE. Coli
dc.subjectFiltration Systems
dc.subjectHousehold Multistage Filtration
dc.subjectMulti-stages
dc.subjectOrganics
dc.subjectPrefiltration
dc.subjectTurbidity Removal
dc.subjectBiofilms
dc.subjectBiological materials
dc.subjectContamination
dc.subjectMicrofiltration
dc.subjectMining laws and regulations
dc.subjectOrganic carbon
dc.subjectPassive filters
dc.subjectProtozoa
dc.subjectTurbidimeters
dc.subjectTurbidity
dc.subjectWater conservation
dc.subjectWater filtration
dc.subjectWater treatment
dc.subjectBiofilm (schmutzdecke)
dc.subjectBiofilm formation
dc.subjectContinuous operation
dc.subjectE. coli
dc.subjectFiltration systems
dc.subjectHousehold multistage filtration
dc.subjectMulti-stages
dc.subjectOrganics
dc.subjectPrefiltration
dc.subjectTurbidity removal
dc.subjectBiofilms
dc.titleBiofilm formation at a household drinking water multistage filtration system
dc.typeArticle
dc.type.localArtículospa
dc.type.versioninfo:eu-repo/semantics/publishedVersion

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