How to Remove Fluoride from Water

Fluoride Removal and Treatment

Fluoride is a naturally occurring mineral in the soil in some areas of the country. It can leach into the drinking water supply. At low levels, it is not considered to be harmful. In fact, many water treatment plants add fluoride to the water because fluoride has been shown to help decrease tooth decay; however, higher levels can be hazardous to our health.

The EPA has set a maximum contaminant level (MCL) of 4.0 mg/L in our potable water. Levels above this can cause spotting on teeth, decreases in bone density, respiratory disease, or cancer.

AdEdge offers a line of packaged, pre-engineered APU systems and reverses osmosis systems for the removal of fluoride from water. We offer these products to reduce the amount of fluoride in municipal water treatment systems and more.

AD74 is an adsorptive alumina-based metal oxide which has been certified for use in drinking water under NSF Standard 61. This media has been designated as the Best Available Technology for fluoride removal in drinking water by the Water Quality Association, the American Water Works Association, and the US Environmental Protection Agency. It is capable of removing fluoride at levels of 1.8 mg/L with > 90% removal efficiency. The media is used in AdEdge’s manual or automated filtration systems that are pre-engineered, customized, and packaged by AdEdge for site specific requirements. This media can be used as a one-time disposal or can be regenerated on site.

The AD74 media has a high affinity for fluoride. Therefore the media can be run to exhaustion without any regeneration or on-site wastewater discharges and then disposed of off-site as non-hazardous waste. This process is most often used in very small to medium-sized water systems and in cartridges for point-of-use (household) units.

AD74 can be regenerated on-site with dilute caustic (sodium hydroxide) after the media has been run to exhaustion, as measured by fluoride breakthrough. This removes the fluoride from the media so it can be placed back in service. Process control is required to neutralize the media before it is put back in service and the wastewater before disposal in the sanitary sewer, drain or leach field, wastewater plant, or other option.

Features of the AD74 option include:

  •  Effective fluoride removal up to 8 mg/L.
  •  Moderate filtration rates.
  •  Typical media life is 3-4 years as capacity exhausts with time.
  •  AdEdge provides ancillary equipment for regeneration and neutralization as part of the packaged solution.
  •  Wastewater is non-hazardous after neutralization and can be discharged to sanitary sewer, drain or leach field, wastewater plant, or other option.

If you are experiencing fluoride issues with your water,  click here to contact us or fill out a site profile form and we’ll start working on a customized fluoride removal solution for you.



Keep up-to-date with our latest news, developments in the water treatment industry, and some general fun.