Treatment of Golf Course Runoff Using a Phosphorus Removal Structure.

Runoff dissolved phosphorus (P) losses are more difficult to control compared to particulate losses, especially because the former cannot be prevented via erosion control.  A P removal structure designed to filter dissolved P from passing runoff was constructed using blast furnace steel slag as the sorption material.  This structure was located in a drainage ditch that receives runoff from a golf course and several suburban neighborhoods.  Background dissolved P concentrations were around 1 ppm.  Water samples are collected before and after entering the structure with automatic samplers and all samples were analyzed for various parameters, including dissolved P.  The overall design and effectiveness of the structure will be presented.