Removal of stormwater particulates by disc filter technology

Katrine Nielsen, Peter Steen Mikkelsen, Eva Eriksson

    Research output: Contribution to conferencePosterResearchpeer-review

    332 Downloads (Pure)

    Abstract

    The trend in the Danish society is toward disconnection of stormwater from the combined sewers and, where needed, local treatment using the best available technologies (BAT). The aim here was to assess a fast filtration technology for removal of particulate matter in stormwater with an emphasis on colloidal and nanosized particles.
    During the project period it rained 8.5 % of the time and the average daily rainfall was 2.9 mm/day. Based on three individual storm events it was found that 95 % of the particles were <10 µm. The nanosized particles (0.01-1.2 µm) were found to be anionic charged and in the size-range of 100 nm.
    The physical treatment of particle filtration at 10 µm was inadequate to remove the small particles identified in this project. Coagulation with a cationic coagulant and subsequently flocculation is suggested as process improvements technologies.
    Original languageEnglish
    Publication date2013
    Number of pages1
    Publication statusPublished - 2013
    Event8th International Conference on Planning and Technologies for Sustainable Urban Water Management - Lyon, France
    Duration: 23 Jun 201327 Jun 2013
    http://www.novatech.graie.org/a_index.php

    Conference

    Conference8th International Conference on Planning and Technologies for Sustainable Urban Water Management
    Country/TerritoryFrance
    CityLyon
    Period23/06/201327/06/2013
    Internet address

    Keywords

    • Colloids
    • Flocculation
    • Organic matter
    • Runoff
    • Suspended solids

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