Mitigating Lead Contamination in Highway Runoff Using Poultry Litter Biochar in Stormwater BMPs

Abstract Submission: Highway runoff is a significant source of heavy metal pollution, particularly lead, which poses serious environmental and health risks. Poultry litter biochar (PLB) offers a promising solution for mitigating these contaminants in stormwater runoff through its adsorption capabilities. This research focuses on the application of PLB in stormwater best management practices (BMPs) to remove lead from highway runoff. The biochar was produced through pyrolysis of poultry litter, which enhances its adsorption properties due to its high surface area and nutrient content. To evaluate the efficiency of PLB in removing lead, column flow-through tests will be conducted, simulating real-world stormwater flow conditions. These tests will assess the biochar's lead adsorption capacity over time, providing insight into its potential long-term effectiveness in stormwater treatment systems. The study will explore key factors such as flow rate, lead concentration, and biochar application rates within BMPs. Additionally, the potential for biochar regeneration and reuse will be investigated to enhance its sustainability as a treatment material. The outcome of this research will provide valuable data on the use of solid waste-derived biochar as an environmentally friendly solution for reducing heavy metal contamination in stormwater, aligning with sustainable stormwater management practices. This research contributes to the growing body of work aimed at addressing environmental health challenges through innovative applications of solid waste materials in stormwater BMPs.

Learning Objectives/Expected Outcome (Optional) : Participants will understand how poultry litter biochar (PLB) can be utilized in stormwater best management practices (BMPs) to remove lead from highway runoff. They will gain insights into the effectiveness of PLB in lead adsorption under various flow rates, lead concentrations, and application rates. The research will demonstrate the environmental and practical benefits of using solid waste-derived biochar in reducing heavy metal contamination in stormwater, contributing to sustainable stormwater management solutions.