Show simple item record

dc.contributor.authorIgnatev, Alexey
dc.contributor.authorTuhkanen, Tuula
dc.date.accessioned2019-09-12T11:38:53Z
dc.date.available2019-09-12T11:38:53Z
dc.date.issued2019
dc.identifier.citationIgnatev, A., & Tuhkanen, T. (2019). Step-by-step analysis of drinking water treatment trains using size-exclusion chromatography to fingerprint and track protein-like and humic/fulvic-like fractions of dissolved organic matter. <i>Environmental Science : Water Research & Technology</i>, <i>5</i>(9), 1568-1581. <a href="https://doi.org/10.1039/C9EW00340A" target="_blank">https://doi.org/10.1039/C9EW00340A</a>
dc.identifier.otherCONVID_32785208
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/65495
dc.description.abstractThis paper provides a glimpse into the removal of dissolved organic matter (DOM) during conventional drinking water treatment and evaluates the potential of high-performance size-exclusion chromatography (HPSEC) as a supplementary tool for routine monitoring of drinking water treatment plants (DWTPs). Two DWTPs in Central Finland were systematically evaluated using HPSEC with simultaneous UV and fluorescence detection. For tyrosine-like, tryptophan-like, and humic/fulvic-like DOM fractions of various molecular weight (MW) values, the total and step-by-step removal efficiencies were estimated along the treatment trains. Overall, both DWTPs removed ∼70% of dissolved organic carbon (DOC) and reduced by 80-90% the total fluorescence and total UV absorbance (UVA). DOM fractions of high MW > 1500 Da were efficiently >95% removed. Fractions of intermediate MW 750-1500 Da were 80-90% removed, whereas the removal efficiency for fractions of low MW < 600 Da was in the range of 60-70%. The lowest removal efficiency across all fractions and detection was observed by UVA210 for the DOM fraction of small MW < 300 Da, for which only 20-30% was removed. In one of the DWTPs, the chromatographic area of this fraction occasionally increased, indicating the formation of degradation and/or oxidation products. Pre-ozonation of raw water reduced total tyrosine- and tryptophan-like fluorescence by ∼30%, humic/fulvic-like fluorescence by ∼20%, and total UVA254 by ∼25%. In the conventional coagulation/flocculation, high MW fractions were removed almost completely, whereas the removal of low MW fractions was only ∼20%. The coagulability of individual fractions was correlated with their hydrophobicity/hydrophilicity estimated using the ratio of UVA210/UVA254. In one of the DWTPs, oxidation with ClO2 induced the formation of DOM with MW 750-1500 Da due to the polymerization or release of DOM from colloidal matter. This new DOM was partly removed in the subsequent sand and activated carbon (AC) filtration and partly ended up in the treated water. In the AC filters, 20-60% of DOM fractions of low MW < 600 Da were removed, and fluorescent compounds exhibited two-fold higher removal efficiencies compared to UV absorbing compounds. Analyses of SUVA and the ratio of UVA210/UVA254 provided surrogate quantification of the aromatic character and hydrophobic/hydrophilic properties of unfractionated and fractionated DOM.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherRoyal Society of Chemistry
dc.relation.ispartofseriesEnvironmental Science : Water Research & Technology
dc.rightsCC BY-NC 3.0
dc.titleStep-by-step analysis of drinking water treatment trains using size-exclusion chromatography to fingerprint and track protein-like and humic/fulvic-like fractions of dissolved organic matter
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201909124139
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineYmpäristötiedefi
dc.contributor.oppiaineEnvironmental Scienceen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.format.pagerange1568-1581
dc.relation.issn2053-1400
dc.relation.numberinseries9
dc.relation.volume5
dc.type.versionpublishedVersion
dc.rights.copyright© The Royal Society of Chemistry, 2019
dc.rights.accesslevelopenAccessfi
dc.subject.ysojuomavesi
dc.subject.ysokromatografia
dc.subject.ysohumus
dc.subject.ysovedenpuhdistus
dc.subject.ysoorgaaninen aines
dc.subject.ysoliuennut orgaaninen hiili
dc.subject.ysoproteiinit
dc.subject.ysovedenkäsittely
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p6537
jyx.subject.urihttp://www.yso.fi/onto/yso/p10173
jyx.subject.urihttp://www.yso.fi/onto/yso/p11963
jyx.subject.urihttp://www.yso.fi/onto/yso/p15306
jyx.subject.urihttp://www.yso.fi/onto/yso/p14873
jyx.subject.urihttp://www.yso.fi/onto/yso/p29461
jyx.subject.urihttp://www.yso.fi/onto/yso/p4332
jyx.subject.urihttp://www.yso.fi/onto/yso/p10858
dc.rights.urlhttps://creativecommons.org/licenses/by-nc/3.0/
dc.relation.doi10.1039/C9EW00340A
jyx.fundinginformationThe first author sincerely appreciates the financial support from Maa- ja vesitekniikan tuki ry (Finland), grant 37141.


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

CC BY-NC 3.0
Except where otherwise noted, this item's license is described as CC BY-NC 3.0