Pilot Study Results of Metals Removal from Stormwater Using Cement Based Filters

Presenters: Megan Hart, PhD & John Kevern, PhD, PE

Control of metals in stormwater in contact with industrial sites is an ever present problem, especially in cold water fisheries. Collecting and treating stormwater is an option for managing discharge; however, no one technology completely treats the fluctuating source at active sites such as scrap yards or recycling sites. Cement based media contained in geosynthetic wattles is an avenue for controlling and treating stormwater quantity and quality on sites with active metals generation or mobilization. CBM was piloted for control of copper, zinc, and lead on two sites and successfully treated stormwater for a rainy season.

Learning Objectives: 
  • Identify how CBM could be utilized on a site.
  • Determine if CBM is an option for other industrial applications.
  • Compare CBM performance to other technologies.

Presented by Megan Hart, PhD – Assistant Professor, University of Missouri Kansas City & John Kevern, PhD, PE – Chair, University of Missouri Kansas City

Dr. Megan L. Hart is a nationally recognized expert in geoenvironmental engineering for developing in-situ and ex situ treatments for water contaminated with metals, organics, and new and emerging contaminants of concern. Her first B.Sci. was conferred in Geology from Western Washington University with a minor in chemistry. She received her second B.Sci., M.S. and Ph.D. degrees from Missouri University of Science and Technology in Geological Engineering with both thesis and dissertation focusing on the environmental processes of both natural and engineered semi-permeable barrier processes and technology. While obtaining her PhD, Dr. Hart worked as an environmental engineer for the Missouri Department of Natural Resources working in the areas of hazardous waste, groundwater analysis, and water and wastewater treatment. She joined the faculty of Saint Louis University in June, 2010 and then moved to the University of Missouri Kansas City in the department of Civil Engineering as an assistant professor in geotechnics and geo-engineering specializing in stormwater and groundwater treatment. Dr. Hart is a Registered Geologist in the State of Missouri.

Dr. Kevern a Professor of Civil Engineering, Chair of the Department of Civil & Mechanical Engineering at the University of Missouri-Kansas City, and an internationally recognized expert on pervious concrete, concrete durability, and non-traditional concrete applications. He received his Ph.D. from Iowa State University. Dr. Kevern has been named one of the top five most influential people in the concrete industry by concrete construction magazine for his work with pervious concrete and is a Fellow of ACI. He chairs AKM50 Advanced Concrete Materials and Characterization committee at the National Transportation Research Board. Some of his current research topics include improving water quality using cement-based filters, improving concrete lifespan using hydrophobic coatings, internal curing concrete, techniques to reduce cost and improve performance of soil structures in sub-Saharan Africa, and eliminating joints in concrete pavements. He has authored over 125 journal articles, papers, and reports and has been an invited presenter over 175 times at US and international conferences.