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CENTENNIAL HONORS COLLEGE
Western Illinois University
Undergraduate Research Day 2016
PosterPresentation
TheEffectivenessofaHomemadeWaterFilterComparedtoaStoreBoughtFilter
JodyBeckman,DarionScanlan,DarbyShaw,BridgetWilliams,&KylieWilson
FacultyMentors:BrianDavies,BrianPeer,&KayTsai
Biology
Contaminant-freewaterisanimportanthealthissueandhasbeeninthespotlightrecently.Wewanted
todeterminewhetherwecouldcreateourownwaterfilteroutofeasilyobtainedmaterialsthatcould
rival the efficiency of store-bought filters. We tested three different filters, one was store bought and
the other two made from household materials. We obtained water samples from Spring Lake and
CurrensHallatWIU.Weranthesesamplesthroughallthreefilterstodeterminetheireffectivenessat
removingnitrates,totalandsuspendedsolids,andbacteriaandcomparedtheseresultstotheunfiltered
control samples. Nitrate levels increased after filtration, but remained below 10 ppm in all samples.
Water samples were also plated on agar gel and bacterial colonies were counted after 48 hours. Our
resultssuggestthatnosinglefilterconsistentlyperformedbetterthantheothers.Additionaltestingis
requiredtomakeanyconclusivedeterminations.