Changes

[[File:Filtration.png|right|frame|Media based systems are depth filters that capture particles both on the surface and within the media matrix.  Membrane filters are surface filters that remove all particles greater than a specified size at the surface of the filter.  Membranes are typically much thinner than shown in the diagram above. Both filtration systems can be oriented vertically or horizontally. (Source: Green Synergy Engineering)]]

[[File:Filtration.png|right|frame|Media based systems are depth filters that capture particles both on the surface and within the media matrix.  Membrane filters are surface filters that remove all particles greater than a specified size at the surface of the filter.  Membranes are typically much thinner than shown in the diagram above. Both filtration systems can be oriented vertically or horizontally.

 

(Source: Green Synergy Engineering)]]

Filtration is the process by which stormwater runoff is conveyed through a filter medium to remove solid particles and associated pollutants.  Several stormwater practices use filtration through sand or gravel media as the primary mechanism for treatment of urban runoff.   

Filtration is the process by which stormwater runoff is conveyed through a filter medium to remove solid particles and associated pollutants.  Several stormwater practices use filtration through sand or gravel media as the primary mechanism for treatment of urban runoff.