• Operation and Performance of the AquaDAF® Process System for Water Purification

    Author(s):
    Ryan J Hess, Lawrence K Wang, Joseph M Wong
    Editor(s):
    Hung-ping Tsao, Lawrence K Wang (see profile)
    Date:
    2019
    Group(s):
    Digital Books, Environmental Humanities, Sustainability, World-Ecology Research Network
    Subject(s):
    Science and technology studies (STS)
    Item Type:
    Book chapter
    Permanent URL:
    http://dx.doi.org/10.17613/7xwx-xr75
    Abstract:
    Wong, JM, Hess, RJ and Wang, LK (2019). Operation and performance of the AquaDAF® process system for water purification. In: "Evolutionary Progress in Science, Technology, Engineering, Arts, and Mathematics (STEAM)", Wang, Lawrence K. and Tsao, Hung-ping (editors). Volume 1, Number 7, July 2019; 49 pages. Lenox Institute Press, Newtonville, NY, 12128-0405, USA. No. STEAM-VOL1-NUM7-JUL2019; ISBN 978-0-9890870-3-2. This book chapter introduces the high-rate AquaDAF clarification system which was developed in the mid 1990s for water treatment. The process is much more compact than conventional clarification systems with surface loading rate as high as 20 gpm/ft2. The presentation includes the history of process development, application, system description and design criteria, pilot and full-scale case studies, and marketing outlook. Since 2000 more than 55 full-scale AquaDAF plants have been installed worldwide with a total capacity of 1.4 billion gallons per day.
    Notes:
    Keywords: Dissolved air flotation, DAF, Drinking water treatment, Clarification, Surface loading rate, Algae removal, Recycle rate, Mechanical Sludge Withdrawal, Hydraulic sludge withdrawal, Flocculation, False Floor, Membrane pretreatment, AquaDAF
    Metadata:
    Published as:
    Book chapter    
    Status:
    Published
    Last Updated:
    11 months ago
    License:
    All-Rights-Granted
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