Researchers Find Steel Byproducts Can Reduce Contamination in Storm Runoff
Posted: Dec 13, 2024
Researchers at South Dakota State University found that a combination of steel slag and steel chips, two common steel byproducts, can help reduce the levels of E. coli and phosphorus in storm runoff water from transportation infrastructure and other areas. Typical storm water management practices do not remove contaminants, which may be picked up by water flowing over farmland or urban streets, parking lots, and sidewalks. A three-year field test demonstrates that steel chips and slag are effective filter media for long-term field applications. The media mixing ratios recommended from this project will facilitate the design of full-scale stormwater filters. The application of this filtration technology will reduce the E. Coli contamination from stormwater runoff, protect natural water resources, and improve public health.
Researchers at South Dakota State University found that a combination of steel slag and steel chips, two common steel byproducts, can help reduce the levels of E. coli and phosphorus in storm runoff water from transportation infrastructure and other areas. Typical storm water management practices do not remove contaminants, which may be picked up by water flowing over farmland or urban streets, parking lots, and sidewalks. A three-year field test demonstrates that steel chips and slag are effective filter media for long-term field applications. The media mixing ratios recommended from this project will facilitate the design of full-scale stormwater filters. The application of this filtration technology will reduce the E. Coli contamination from stormwater runoff, protect natural water resources, and improve public health.