Phosphorus removal in wastewater polishing filters
The Upper Uvdal wastewater treatment plant was designed as a traditional chemical and biological treatment plant. In a polishing step, the effluent goes thru a filter bed with Filtralite Nature P before it is discharged into a small creek.
The filter bed with Filtralite Nature P has stable discharge levels far below recommended limits. After three years of operation, the treatment plant is removing 99 % of the phosphorus, with a discharge concentration of 0,06 mg/l.
|Filter media used on the site|
|1000 m3||Filtralite Nature P 0-4 mm|
|100 m3||Filtralite Nature NR 4-10 mm|
|100 m3||Filtralite Nature NR 10-20 mm|