Iron is an objectionable constituent of portable water. Iron in water impart a bitter characteristic, metallic taste and cause oxidized precipitate. Coloration of water which may be yellowish brown to reddish brown and renders the water objectionable or unsuitable for use. In addition Iron stain everything with which it come in contact.
Iron exists in water in two levels. One as the bi-valent, Ferrous Iron ( Fe ++) and the second one as the tri-valent, Ferric Iron (Fe+++). The Ferric Iron generally occurring in the precipitated form. Iron forms complexes of hydroxides and other in-organic complexes in solution with substantial amounts of bi-carbonate, sulphate, Phosphate, Cyanide or Halides. Presence of organic substances induces the formation of organic complexes which increase the solubility of Iron. The waters of high alkalinity have lower iron than waters of low alkalinity.
CAUSES OF IRON
- Iron contamination causes stains on your sinks and bathroom tiles. Stains appear on your faucets and fixtures. Pipes corrode Washing machines, water heaters, dishwashers, steam irons, showers and radiators fall prey. Up to 50% of their life and efficiency gets reduced, adding up 25% in maintenance and running costs.
- If iron water is consumed it can cause loss of apPetite, tissue damage. When used for bathing it causes skin rashes, hair loss
IRON REMOVAL PROCESS DESCRIPTION
STAGE I – CHEMICAL DOSING
To level the pH factor, chemical pre treatment is done in order to facilitate rapid aeration, than the chemical dosed water send in to the aeration tanks.