A Model for Predicting Reduction in Mobile Phosphorus of Lake Sediment by Aluminum Drinking Water Treatment Residuals

•Drinking water treatment residual (DWTR) inactivated phosphorus (P) in lake sediment.•An empirical model was developed to describe P inactivation by DWTR.•Model inputs were initial mobile P in sediment and oxalate-extractible aluminum in DWTR.•The model was able to successfully predict sediment mobile P following DWTR dose.•The model can be used to determine DWTR dose for lake restoration.