Nano- and microparticles and associated pollutants in stormwater runoff: effects of disc filtration with and without flocculant addition

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedings – Annual report year: 2014Researchpeer-review

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Danish municipalities work towards separating stormwater and sewage. But stormwater runoff may be heavily polluted and therefore it is needed to find Best Available Technologies (BAT) to source separate and treat stormwater before discharge into surface waters. The aim here was to determine the sizes of particles found in stormwater from roads and to evaluate the use of a cationic organic flocculant to increase the size of the particles and thereby increase the removal efficiency of a 10 μm disc filter. The samples were collected in connection with a project testing a pilot scale disc filter for treating stormwater runoff. The micro-sized particles were found to be mainly 2.1-19 μm in diameter and nano-sized particles were also observed (86-228 nm). Although the flocculant increased the observed volume of the micro-sized particles by 46%, the majority of the particles where still < 10 μm. Partial removal of particle-associate polycyclic aromatic hydrocarbons was confirmed.
Original languageEnglish
Title of host publicationSpecialist Conference. Advances in particle science and separation: from mm to nm scale and beyond : Proceedings
Place of PublicationSapporo, Japan
PublisherIWA Publishing
Publication date2014
Pages1-11
Publication statusPublished - 2014
EventSpecialist Conference. Advances in particle science and separation: from mm to nm scale and beyond - Hokkaido University Conference Hall, Sapporo, Japan
Duration: 15 Jun 201418 Jun 2014

Conference

ConferenceSpecialist Conference. Advances in particle science and separation: from mm to nm scale and beyond
LocationHokkaido University Conference Hall
CountryJapan
CitySapporo
Period15/06/201418/06/2014

    Research areas

  • Discfilter technology, Particle-associated pollution, Particle size distribution, Polycycle aromatic hydrocarbons, Stormwater runoff
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