One emerging technology for nitrate removal from subsurface waters is the woodchip bioreactor. Limited research exists on the potential of these bioreactors to also reduce downstream transport of contaminants commonly detected in manure-amended cropland, including pathogens and phosphorous. This project pairs a lab study with field-scale studies of bioreactor phosphorous and bacterial removal. It also will inform design recommendations for bioreactor installation for multiple contaminants. The research also seeks to determine hydraulic retention time and flow path analysis for selected woodchip bioreactors and relate the hydrologic analysis to bioreactor performance and if denitrification in woodchip bioreactors can improved by electrical stimulation.
Key Benefactors:
farmers, agronomists, Extension agents, livestock farmers