Bone Char Fluoride Removal Filter

SKU bonecharUSD Category

USD $49.95


Best Water now offers a Bone Char filter for fluoride removal. Like Alumina, Bone Char works best with more contact time with the water and at lower pH levels but works with a larger range of lower pH water and a bit better with higher flow rates than Alumina. And the water tastes better with Bone Char than with Alumina.

We recommend using a double housing manifold with KDF 85 in the first housing followed by the Bone Char filter in the second. Since KDF 85 will remove many of the other contaminates that Bone Char removes, the life of the Bone Char is greatly extended for fluoride removal.

Should be replaced every 6 months in normal use.

Water Filters That Remove Fluoride

Bone-Char (BC) Carbon has been used for centuries to remove naturally-occurring fluoride from water. It works similar to the way bones in the human body attract fluoride. Bone contains a porous matrix that is rich in surface ions. These can be readily replaced by fluoride and by some of the other contaminants that arrive along with fluoride (heavy metals). Bone char effectively removes a number of contaminants.

When used alone, BC-Carbon can remove up to 90% of the fluoride in water. The efficiency of bone char can be improved by adding pre-filters that remove heavy metals and other contaminants before exposure to the BC-carbon. Bone char works best at a slightly acidic pH and may not work as well with hard water. This medium is being successfully incorporated in many systems where cartridges can be replaced as the media becomes saturated.

KDF or KDF Filter – Kinetic Degradation Fluxion

KDF is patented and proven to remove chloramine, chlorine, bacteria, iron, fungus, algae, hydrogen sulfide, most heavy metals and other contaminates.

KDF is brass, made of 50% pure copper and 50% pure zinc. In water this produces an electro-chemical reaction that converts free chlorine into simple chlorides.

Some of the harmful components are changed into harmless ones. KDF will remove more than 95% of chlorine before it hits your carbon filter, extending the life of the carbon by 15 times and letting it focus on other pollutants.

The electrolytic field inhibits microorganisms and forms peroxide and hydroxyl radicals. KDF meets EPA and FDA standards for zinc and copper because the copper and zinc ions tend to reattach to the KDF media. It doesn’t remove minerals and is best used in tandem with carbon filters for truly effective filtration.

A Bone Char Filter Removes


Very effective in removing soluble aluminum. Adsorption influenced by pH and retention time. Best results at ph 7 or above.

Largely dependent upon form of arsenic (ie. AsIII or AsV). pH has considerable influence. At low pH almost no adsorption occurs.  Affected by Protonation.

Bone char is better than conventional precipitation and/or coagulation processes. Superior results in soft water. Retention time on par with aluminum.

Much dependent upon form present, ie. cation or anion, and valency (chrome III or chrome VI). Chrome III adsorbs well.

Adsorption dependent upon pH and retention time.

Dependent upon form of iron. Better results with organic iron than with inorganic. Inorganic results dependent upon valency. Short retention times suffice.

Very effective with short retention time (ie. 1 minute or less)

Very effective. Pilot results good. Competition from other methods of oxidation.

Best with organic mercury. Inorganic mercury is dependent upon valency (mercury I and II). Although similar, the higher charged monatomic mercury II has a greater affinity for Bone Char than mercury I.

Adsorption best at higher pH. Requires high retention time. At 5 pH almost no adsorption.

Quite rapidly adsorbed. Better at low concentrations in solute. High deposits of silver on bone char inhibit adsorption. Adsorption better at pH 5.

Efficiency dictated by contact time and pH. Both pilot plant and full scale plant performance good.

Bone Char is effective in removing free bromine. Bromine form is important too. In presence of potassium and sodium adsorption decreases.

Chlorine – Chloramines
Bone Char is minimally effectively in reducing chlorine or chloramine.

Retention time required is usually about 6 – 15 minutes, dependent upon chemical make up of color. Can be used in slow sand, rapid gravity or pressure filters.

Adsorption onto Bone Char is good, but influenced by pH – better at 6.5 or lower. Concentrations of fluoride present also influences performance. Activated carbons do not effectively adsorb fluoride.

Good at removing organo-chlorine pesticides (ie. Dieldrin, septachlor, etc.). not very good at atrazine, etc.

Additional information

Weight 1.5 lbs


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Bone Char Fluoride Removal Filter

USD $49.95

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