Home Pure Water Wastewater Applications Avista Chemicals Harrington Plastics About Us Contact Info Site Map

Fluoride Removal


Fluoride is found in wastewater from glass etching operations, semiconductor manufacturing and metal finishing operations.

The most common method of treatment is the precipitation of calcium fluoride using calcium from either lime or calcium chloride. This method reduces the dissolved fluoride concentration to 10 mg/l.

lf the water is retreated with aluminum hydroxide, the fluoride can be reduced to 5 mg/l.

Typical fluoride limits are 17 mg/l.



Copyright � 2006 Total Systems International, LLC