Water Resources Research Act Program

Details for Project ID MD2025-Eun

Feasibility Study of Sustainable Biochar-Biopolymer Soil Systems for Mitigating Roadside Stormwater Contaminants in Maryland

Institute: Maryland
Year Established: 2025 Start Date: 2026-01-01 End Date: 2026-12-31
Total Federal Funds: $57,000 Total Non-Federal Funds: $57,000

Principal Investigators: Jongwan Eun

Project Summary: When rain runs off highways and roads, it can carry harmful substances-nutrients, metals, oil-like compounds, and "forever chemicals" (PFAS)-into streams and the Chesapeake Bay. Many current systems work well for dirt and nutrients, but not for PFAS, and roadside areas are small and hard to maintain. This study tests a new soil blend made from biochar (a charcoal-like material) and natural binders (biopolymers). In the lab, we will flow road-like stormwater through columns filled with these blends and measure how well they remove PFAS, nutrients, and metals while keeping water moving. We will also build an easy-to-use prediction AI tool so agencies can choose the right mix for their site and know what performance to expect. The goal is a practical, affordable way to clean roadside runoff, help local governments meet regulations, and protect the Bay.