Iron-Enhanced Sand Filters: How are they performing? скачать в хорошем качестве

Iron-Enhanced Sand Filters: How are they performing?

On July 18, 2025, the Minnesota Stormwater Research Council held its annual meeting that included field tours of research project locations throughout the Twin Cities Metro Area. This video is a recording of the presentation by Peter Weiss from Valparaiso University and Levi Burrows from the University of Minnesota at Silver Lake Park in Columbia Heights, MN on their research project, “Iron-enhanced sand filters performance and maintenance meta-analysis”. Phosphorus pollution is one of Minnesota’s biggest water quality challenges, fueling algal blooms and harming aquatic life and human health. To tackle this issue, many communities use iron-enhanced sand filters (IESFs) to remove phosphorus from stormwater before it reaches lakes and rivers. This research project explored how long IESFs remain effective, what causes them to lose performance, and how construction and maintenance practices can extend their lifespan. By developing predictive tools and practical maintenance guidelines, the team provided stormwater managers with new ways to ensure filters continue capturing phosphorus efficiently which can save them time and money while helping to keep Minnesota’s waters clean. Support for this project is provided by the Minnesota Stormwater Research Program with funding from the Clean Water Fund from the State of Minnesota’s Clean Water, Land and Legacy Amendment. Additional support comes from the Minnesota Stormwater Research Council and its member cities, watersheds, private businesses, the University of Minnesota Water Resources Center, Minnesota Sea Grant, the College of Food, Agriculture, and Natural Resource Sciences, and the National Institutes for Water Resources funded by the US Geological Survey. Learn more at https://wrc.umn.edu/projects/iesf.