Monitoring and characterising the solids loading dynamics to drainage systems via gully pots

Matthijs Rietveld*, Francois Clemens, Jeroen Langeveld

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)
72 Downloads (Pure)

Abstract

Runoff (re)mobilises solids and their associated pollutants from streets and transports them via gully pots to the drainage system. As the solids negatively impact the performance of the drainage systems, knowledge on the solids loading in terms of mass and composition is essential. However, monitoring data on the solids loading, in particular, covering all seasons and a number of sites, is scarce. This article presents the results of a monitoring campaign on the solids loading to a drainage system via 52 gully pots over a period of 2 years at a sampling rate of once per 3–4 weeks. The loading shows a maximum during the tree phases ‘leaf growth’ and ‘full capacity’ and is correlated with the rain intensity during these phases. The organic fraction and D50 of the solids are correlated with leaf abscission. The settling velocity of the particles <1800 µm is strongly correlated with their organic fraction.

Original languageEnglish
Pages (from-to)699-710
Number of pages12
JournalUrban Water Journal
Volume18
Issue number9
DOIs
Publication statusPublished - 2021

Keywords

  • catch basin
  • Gully pot
  • solids
  • urban drainage
  • wash-off

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