m |
m |
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Line 7: | Line 7: | ||
<th>Dry swale or step pool</th> | <th>Dry swale or step pool</th> | ||
<th>Wet swale</th> | <th>Wet swale</th> | ||
− | <th> | + | <th>Biofiltration</th> |
<th>Permeable pavement</th> | <th>Permeable pavement</th> | ||
<th>Tree box/tree trench</th> | <th>Tree box/tree trench</th> |
Unit processes of stormwater treatment techniques for filtration practices (Adapted from WEF, 2008)
Link to this table
Control | Dry swale or step pool | Wet swale | Biofiltration | Permeable pavement | Tree box/tree trench | Green roof |
---|---|---|---|---|---|---|
Peak flow attenuation | X | X | X | X | X | |
Runoff volume reduction | X | X | X | X | X | |
Infiltration | X | X | X | X | ||
Dispersion | X | |||||
Evapotranspiration | X | X | X | X | X | |
Runoff collection and usage | X | X | ||||
Sedimentation | X | X | X | |||
Flotation | X | |||||
Laminar separation | ||||||
Swirl concentration | ||||||
Sorption | X | X | X | X | X | |
Precipitation | X | X | ||||
Coagulation | X | X | ||||
Filtration | X | X | X | X | ||
Plant metabolism | X | X | X | |||
Nitrification/denitrification | X | X | ||||
Organic compound degradation | X | X | X | X | X | |
Pathogen die off | X | |||||
Temperature reduction | X | X | X | X | X | |
Disinfection | X | X |