Ditch-style Filters for Mitigating Dissolved Phosphorus Losses

Research Poster
Vinayak Shedekar
Category: 
Post Doctoral
Advisor: 
Margaret Kalcic
Department: 
Department of Food, Agricultural and Biological Engineering
Abstract: 

It has been established that spring dissolved reactive Phosphorus (DRP) loads drive the extent of HABs in the Western Lake Erie Basin. Many practices intended for mitigating P losses are intended to reduce particulate P transport and are usually not effective in controlling DRP transport. Phosphorus removal structures or P-filters are primarily intended to trap and filter the “legacy” DRP in runoff and drainage water. Trench filters or ditch style filters are desirable due to a narrower footprint, and the dual utility in terms of P removal as well as a water conveyance. Although, the ditch-style P filter shows promise, limited work has been done to evaluate the design and performance of such systems. In this study, we evaluate performance of a ditch P removal structure for treating subsurface drainage water. The P-filter showed promising DRP removal efficiency of up to 30%.