The removal of radioactive particles from well water.

Radon is a naturally occurring, colorless, tasteless, odorless, radioactive gas. It is formed from the decay of radium in soil, rock and water and can be found all over the United States and the world.

The radon in the air in your home generally comes from two sources: the soil or the water supply. From the soil it escapes from the earth’s crust through cracks and crevices in bedrock, and either seeps through foundation cracks or poorly sealed areas into basements and homes, or it dissolves in the groundwater that you may use as your water supply.

Granular Activated Carbon (GAC)

One method for removing radon from water is a granular activated carbon (GAC) unit. Although these units come in a variety of models, types and sizes, they all follow the same principle for removal (Figure 1). For radon removal, GAC units are constructed of a fiberglass tank containing granular activated carbon—a fine material that traps and holds the radon. Because of the carbon’s fine particle size, it may easily clog with sediments or other contaminants present in the water. Some GAC units come with a special backwashing feature for removing sediment. The backwash feature, however, may eventually reduce the effectiveness of the carbon to remove radon. Elimination of the sediment source or a sediment filter placed ahead of the GAC tank is the best protection against clogging.

Bone char is produced by the calculation or "dry distillation" of cattle bones at temperatures approaching 1000°C in the absence of oxygen.  The material consists primarily of apatite II (hydroxyapatite) and approximately 10% elemental carbon with some carbonate arising from the formation of CaO during the ashing process and subsequent reaction with atmospheric CO2.  Uptake of contaminants can occur via three processes. Firstly, species can become incorporated within the hydroxyapatite lattice substituting for Ca or CO3. Secondly, species can interact with reactive groups on the surface of either carbon or hydroxyapatite (Physisorption and Chemisorption). Lastly free phosphate can form stable compounds with contaminates leading to their precipitation.  The material has found applications in the sugar and water purification industries as a cost effective and efficient means of removing trace impurities. The material has been shown to have a high adsorption capacity for a wide range of inorganic and organic contaminants including heavy metals. Bone char has also been used in the removal of radioisotopes from water.  Bone Char is especially effective in removing radioactive particles, arsenic and THM's from the water as well as fluoride.

Points to be aware of:

Carbon works best in the quantity of 2 cuft. At a flow rate of 9 to 15GPM

Carbon works best when mixed with bone-char 20/60 for this application

Without a valve {such as a filter} carbon or bone-char become worthless after a

Feel free to email us over equipment that could be built over these specs