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*[https://stormwater.pca.state.mn.us/index.php?title=Category:Sand_filter_schematic Sand filter schematics] | *[https://stormwater.pca.state.mn.us/index.php?title=Category:Sand_filter_schematic Sand filter schematics] | ||
*[https://stormwater.pca.state.mn.us/index.php?title=Category:Sand_filter_table Sand filter tables] | *[https://stormwater.pca.state.mn.us/index.php?title=Category:Sand_filter_table Sand filter tables] | ||
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+ | *[[Do's and Don'ts of Iron Enhanced Sand Filters (IESFs)]] - A table summarizing practices and assumptions to consider or avoid with IESFs | ||
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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.
Acknowledgements for iron enhanced sand filters
Iron enhanced sand filter