Processes utilized by Best Management Practices - Filters. Sources: WEF, 2012; Strecker, 2005.
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Biofiltration Media filter Green roof Surface sand filter Perimeter sand filter Underground sand filter Enhanced sand filter Permeable pavement w/underdrain
Pretreatment
HYDRAULIC PROCESSES Attenuation X X
Infiltration / Runoff reduction
Evaporation
Transpiration X
PHYSICAL PROCESSES Screening
Sedimentation X
Filtration X X X X X X X X
Flotation / Skimming
Laminar Separation
Swirl concentration
BIOLOGICAL PROCESSES Plant metabolism X X
Pathogen die-off X X
Nitrification / denitrification X X
CHEMICAL PROCESSES Precipitation
Coagulation
Sorption/Ion Exchange X X X X
OTHER Thermal / temperature X

This page was last edited on 15 December 2022, at 02:43.