Háskóli ÍslandsUniversity of IcelandAndradóttir, Hrund2018-02-262018-02-262017-08Andradóttir, H. Ó. (2017). Impact of Wind on Stormwater Pond Particulate Removal. Journal of Environmental Engineering, 143(8), 04017027. doi:doi:10.1061/(ASCE)EE.1943-7870.00012210733-93721943-7870 (eISSN)https://hdl.handle.net/20.500.11815/581Stormwater ponds provide cost and space-efficient treatment of urban runoff via gravitational settling. The goal of this paper was to quantify different mechanisms by which wind can affect the particle removal efficiency of a shallow retention pond. An analytical bulk model was developed and validated numerically against total suspended solids (TSS) measurements in a small (0.3 ha), optimally designed oval pond during four runoff events with 7–11  m/s winds. Simulations highlighted wind as an effective mixing mechanism, lowering the removal of medium silt particles by 10–20% from ideal plug flow, and severely constraining the removal of small clay and silt particles (<6  μm). Initial background concentrations of <12  mg/L TSS were positively correlated with wind speed 5 h prior to the event, indicative of localized wind resuspension. A widespread remobilization of bed sediments was found unlikely in a 1.7-m deep, 112-m fetch pond. A stirred reactor with 60% effective volume is proposed as a first order tool to assess the treatment performance of ideally structured ponds in areas with strong, unobstructed winds.04017027eninfo:eu-repo/semantics/openAccessParticle sizeResuspensionSettlingShort-circuitingStormwater pondTreatment efficiencyWash loadsWind mixingTjarnirUmhverfisverkfræðiVindarinfo:eu-repo/semantics/articleJournal of Environmental Engineeringhttps://doi.org/10.1061/(ASCE)EE.1943-7870.0001221