Processes utilized by Best Management Practices - Manufactured Devices. Sources: WEF, 2012; Strecker, 2005.
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Catch basin inlets Grit chambers Hydrodynamic separators SAFL Baffle Oil / water separators Sump manhole / catch basin
Pretreatment X X X X X X
HYDRAULIC PROCESSES Attenuation
Infiltration / Runoff reduction
Evaporation
Transpiration
PHYSICAL PROCESSES Screening X X X
Sedimentation
Filtration
Flotation / Skimming X X X X
Laminar Separation X
Swirl concentration X
BIOLOGICAL PROCESSES Plant metabolism
Pathogen die-off
Nitrification / denitrification
CHEMICAL PROCESSES Precipitation
Coagulation
Sorption/Ion Exchange
OTHER Thermal / temperature X