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Pollutant Build-up and Wash-off Process Variability

  • Buddhi Wijesiri
  • An Liu
  • Prasanna Egodawatta
  • James McGree
  • Ashantha Goonetilleke
Chapter
Part of the SpringerBriefs in Water Science and Technology book series (BRIEFSWATER)

Abstract

The outcomes of a series of mathematical simulations of pollutant build-up and wash-off are presented in this chapter, strengthening the knowledge base on process variability. It was found that the build-up of particles <150 µm and >150 µm have different temporal patterns. These patterns could be used to differentiate between the behaviour of particles. The behaviour of particles <150 µm was found to play a key role in creating build-up process variability. On the other hand, the load and composition of different sized particles available on urban surfaces prior to a rainfall event were found to significantly influence the wash-off process. Similar to build-up, wash-off process variability is largely dependent on the behaviour of particles <150 µm, although the contribution from particles >150 µm is significant during rainfall events with relatively shorter duration.

Keywords

Particle size Process variability Pollutant build-up Pollutant wash-off Stormwater quality Stormwater pollutant processes 

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Copyright information

© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Buddhi Wijesiri
    • 1
  • An Liu
    • 2
  • Prasanna Egodawatta
    • 1
  • James McGree
    • 1
  • Ashantha Goonetilleke
    • 1
  1. 1.Science and Engineering FacultyQueensland University of Technology (QUT)BrisbaneAustralia
  2. 2.College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenChina

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