Filtration system against the undesirable presence of dissolved metals in the water
Heavy metals: Lead, arsenic…
E.T.E. provides for the elimination by absorption over specially selected granular material (crushed and activated feldspath – in association with CNRS IMP/ETE).
Metals are trapped by molecular sifting through a gravel pack sized according to the nature and concentrations found in the water.
E.T.E. recommends its removal by oxidation- filtration using specific granular material (zeolite, sand, pozzolan,…).
The iron and manganese dissolved in the water are oxidised in particle form then trapped in the granules designed for this purpose.