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    Liquid amphiphilic polymer for effective airborne dust suppression

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    Author
    Lee, Taehee
    Park, Junhyeok
    Knoff, David S.
    Kim, Kwangmin
    Kim, Minkyu
    Affiliation
    Univ Arizona, Dept Min & Geol Engn
    Univ Arizona, Dept Biomed Engn
    Univ Arizona, BIO5 Inst
    Issue Date
    2019-12-02
    
    Metadata
    Show full item record
    Publisher
    ROYAL SOC CHEMISTRY
    Citation
    RSC Adv., 2019, 9, 40146-40151
    Journal
    RSC ADVANCES
    Rights
    This journal is © The Royal Society of Chemistry 2019. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Airborne dust is a byproduct of natural and artificial occurrences, including high winds in arid regions and human activities, and it affects most of the world's population. Watering is the most general practice for reducing airborne dust by wetting the surface of the dust source to agglomerate dust particles via the capillary effect, increasing the aerodynamic diameter of (ultra)fine particles and reducing dust emission. However, the short-term effectiveness due to fast water evaporation, requiring frequent watering, is a major disadvantage. Herein, we utilized biocompatible liquid polymers as additives in water to prolong moist conditions of dust sources due to their liquid state. After the water evaporated, the liquid polymers maintained moisture on the dust sources, resulting in significantly reduced (ultra)fine particle emissions and extended effectiveness compared to conventional water treatment. Interestingly, we observed greater dust suppressive effectiveness with liquid amphiphilic polymer than liquid hydrophilic polymer because of the synergistic effect of the liquid state and amphiphilic property of the polymer. Translating lab-scale experiments to pilot-scale field-testing confirmed the potential for utilizing biocompatible liquid amphiphilic polymers to advance airborne dust suppression technology.
    Note
    Open access article
    ISSN
    2046-2069
    DOI
    10.1039/c9ra06787f
    Version
    Final published version
    Sponsors
    Tech Launch Arizona at the University of Arizona [UA17-240]; National Heart, Lung, and Blood Institute of the National Institutes of HealthUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Heart Lung & Blood Institute (NHLBI) [T32 HL007955]
    ae974a485f413a2113503eed53cd6c53
    10.1039/c9ra06787f
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