Is ion-exchange resin harmful?

Is ion-exchange resin harmful?

Ion exchange resin systems generally are safe, robust and effective methods to remove contaminants such as chromate, uranium, radium, perchlorate and more. It should not come as a surprise that there are consequences associated with the use of ion exchange resins.

Which resin is used in ion exchange process?

Anion resins and cation resins are the two most common resins used in the ion-exchange process. While anion resins attract negatively charged ions, cation resins attract positively charged ions.

Can you drink water from ion exchange?

Capacity of an anion exchange unit Nitrate and sulfate are odorless, colorless and non-staining, so only drinking and cooking water may require treatment. The amount of water an anion exchange device can treat depends on the contaminant being removed.

What does ion-exchange resin remove?

The ion exchange chemical process works by removing dissolved ionic contaminants from the water. These ions are swapped for better ones that won’t degrade the quality of your water. Water softeners are very similar to ion exchange systems since both systems can remove magnesium and calcium ions from the water.

What are the disadvantages of ion exchange?

Along with these benefits, there are certain disadvantages associated with ion exchange, such as calcium sulfate fouling, iron fouling, adsorption of organic matter, organic contamination from the resin, bacterial contamination and chlorine contamination.

Does chlorine damage resin?

When water with a chlorine level of above 1.0 ppm passes through a water softener, the chlorine will oxidize the resin beads. This oxidation can affect the softening process and cut the life of your resin in half.

How do you get rid of cations?

Water softeners remove cations (positively charged ions such as calcium and magnesium) and replace them with sodium. Anion exchange devices remove anions (negatively charged ions such as arsenic and nitrate) and replace them with chloride. Mixed media ion exchange units remove both cations and anions.

What is anion used for?

Anion dealkalizers are primarily used to remove alkalinity from boiler feedwater with a low-to-moderate amount of total dissolved solids (TDS). Anion dealkalizers may also be used to remove carbonate, bicarbonate, sulfates and nitrates from feedwater.