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+ | [[file:Check it out.png|200px|thumb|alt=image|<font size=3>See a presentation on Multi-Year Performance Analysis of Six TCMA Iron-Enhanced | ||
+ | Sand Filters (IESFs), given by Dr. David Fairbairn [[File:Fairbairn WRC 2020-10-19.pdf]]]] | ||
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[[File:mids logo.jpg|300px|right|alt=image of Minimal Impact Design Standards logo]] | [[File:mids logo.jpg|300px|right|alt=image of Minimal Impact Design Standards logo]] | ||
[[File:Sand infiltration 4.jpg|thumb|300px|alt=photo of an iron ehanced sand filter basin|<font size=3>Iron enhanced sand filter basin, Maplewood, MN. Photo courtesy of Barr Engineering.</font size>]] | [[File:Sand infiltration 4.jpg|thumb|300px|alt=photo of an iron ehanced sand filter basin|<font size=3>Iron enhanced sand filter basin, Maplewood, MN. Photo courtesy of Barr Engineering.</font size>]] |
Iron-enhanced sand filters are filtration Best Management Practices (BMPs) that incorporate filtration media mixed with iron. The iron removes several dissolved constituents, including phosphate, from stormwater. Iron-enhanced sand filters may be particularly useful for achieving low phosphorus levels needed to improve nutrient impaired waters. Iron-enhanced sand filters could potentially include a wide range of filtration BMPs with the addition of iron; however, iron is not appropriate for all filtration practices due to the potential for iron loss or plugging in low oxygen or persistently inundated filtration practices.
Iron enhanced sand filter