07-19: Efficient One Step Phosphorous and Suspended Solids Removal from

Reuse of municipal wastewater for cooling tower makeup is increasing in popularity, as it can meet multiple requirements imposed by environmental, regulatory, political and economic factors. The ability to efficiently and economically remove suspended solids and nutrients in a single step is realized by using a gravity driven, downflow, continuous operation, graded media filter. Suspended solids and phosphorous removal at levels greater than 90% is achieved, with effective particle filtration to five microns. Using no moving parts, the filter operational reliability is high and the operation and maintenance costs are extremely low.