Unraveling the characteristics of dissolved organic matter removed by aluminum species based on FT-ICR MS analysis

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dc.contributor.authorHe, Yitian
dc.contributor.authorJarvis, Peter
dc.contributor.authorHuang, Xin
dc.contributor.authorShi, Baoyou
dc.date.accessioned2024-03-19T10:50:29Z
dc.date.available2024-03-19T10:50:29Z
dc.date.issued2024-03-18
dc.description.abstractGiven the complexity of dissolved organic matter (DOM) and its interactions with coagulant chemicals, the mechanisms of DOM removal by aluminum (Al) coagulants remains a significant unknown. In this study, six test waters containing DOM with molecular weight (MW, <1 kDa, 1–10 kDa and >10 kDa) and hydrophobicity (hydrophilic, transphilic and hydrophobic) were prepared and coagulated with Al0, Al13 and Al30. The molecular-level characteristics of DOM molecules that were removed or resistant to removal by Al species were analyzed using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). The results showed that at the molecular level, saturated and reduced tannins and lignin-like compounds containing abundant carboxyl groups exhibited higher coagulation efficiency. Unsaturated and oxidized lipids, protein-like, and carbohydrates compounds were relatively resistant to Al coagulation due to their higher polarity and lower content of carboxyl groups. Al13 removed molecules across a wider range of molecular weights than Al0 and Al30, thus the DOC removal efficiency of Al13 was the highest. This study furthers the understanding of interactions between Al species and DOM, and provides scientific insights on the operation of water treatment plants to improve control of DOM.en_UK
dc.identifier.citationHe Y, Jarvis P, Huang X, Shi B. (2024) Unraveling the characteristics of dissolved organic matter removed by aluminum species based on FT-ICR MS analysis. Water Research, Volume 255, May 2024, Article number 121429en_UK
dc.identifier.eissn1879-2448
dc.identifier.issn0043-1354
dc.identifier.urihttps://doi.org/10.1016/j.watres.2024.121429
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/21034
dc.language.isoen_UKen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectdissolved organic matteren_UK
dc.subjectAl speciesen_UK
dc.subjectcoagulationen_UK
dc.subjectFT-ICR MSen_UK
dc.subjectPARAFAC analysisen_UK
dc.titleUnraveling the characteristics of dissolved organic matter removed by aluminum species based on FT-ICR MS analysisen_UK
dc.typeArticleen_UK
dcterms.dateAccepted2024-03-05

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