How to remove fluoride from groundwater?

Published on by in Technology

Hello everyone!

Here in Brazil, São Paulo State and near regions some wells (mostly tube wells) which are 80 to 400 m deep has high concentration of Fluoride (F-), between 3 to 15 mg/l of F-, specially in the drought periods, when the water replacement in the aquifers is low.

So, what can be the solution? Reverse Osmosis? Electrode-ionization? Ion Exchange? 

The solution that we use is use of low electric current electrolysis for capturing the fluoride in the electrode.We found this is a quick and cheap process for treating the fluoride water.

But I would like to hear from water treatment fellows, if they have other solutions which are quicker and economical.