Ion Exchange Method For Water Treatment Ppt

This soft mineral is contained on the softener resin beads and does not build up on surfaces as scale.

Ion exchange method for water treatment ppt.

In the ion exchange process a granular substance usually a resin that is coated with sodium or potassium ions comes into contact with water containing calcium and two positively charged sodium or potassium ions are exchanged released into the water for every calcium or magnesium ion that is held by the resin. Pellicular type with ion exchange film. Water softeners usually use sodium na as the exchange ion. The positive or negative ions fixed on these radicals are replaced by ions of the same sign in solution in the liquid in contact with them.

Dvorak extension environmental engineering specialist the presence of calcium ca and or magnesium. The two most common ion exchange methods are. Treatment but chemical mechanism is ion exchange rather than adsorption. Ions in the water are exchanged for other ions fixed to the beads.

Water softening ion exchange sharon o. Structural types of ion exchange resins 1. Ions electrically charged atoms or molecules cations and anions can have one or more charges mostly 1 to 3 and can be made of one or. Skipton extension water quality educator bruce i.

Ion exchange process 2. The particles have a size of 30 40µ with 1 2µ film thickness. An ion exchanger is an insoluble substance containing loosely held ions which can be exchanged with other ions in solution which come in material. Ion exchange is a water treatment commonly used for water softening or deminerialization and to remove other substances from water.

An ion exchange water softener exchanges the hardness minerals calcium and magnesium dissolved in water for sodium. Ion exchange resins are insoluble granular substances which have in their molecular structure acidic or basic radicals that can be exchanged. In the ion exchange process sodium ions are used to coat an exchange medium in. These have very low exchange capacity ion exchange efficiency.

Sodium ions are supplied from dissolved sodium chloride salt also called brine. 10 ion exchange process 1.