Nitrates have no detectable color, taste or smell at the concentrations involved in drinking water supplies, and they do not cause discoloration of plumbing fixtures, so they remain undetectable to our senses. Nitrate removal processes must be either foolproof or include extensive monitoring of the treated water to detect breakthrough or determine the need for regeneration.
Infants are particularly susceptible to nitrates because their digestive systems do not operate in the exact same manner as adults. Nitrates are converted by bacteria in the stomach of infants to toxic nitrites. At levels that would not cause harm to adults, nitrates can cause methemoglobinemia in infants, a condition also known as "blue baby" syndrome.
Lanlang offers Ion exchange for nitrate removal, this kind resin is selective resins refers to resins that retain nitrates more strongly than any other ions including sulfates. A variety of functional groups can and have been placed into anion exchange resins that are nitrate selective. Most of these resins are similar to the Type 1 resins, but they have larger chemical groups on the nitrogen atom of the amine than the methyl groups that comprise a Type 1 resin. The larger size of the amine groups makes it more difficult for divalent ions such as sulfates to attach themselves to the resin. This reorders the affinity relationships so that nitrate has a higher affinity for the resin than sulfates even at drinking water concentrations. The affinity relationship for nitrate selective resins in drinking water is:
Nitrate > Sulfate > Chloride > Bicarbonate
Get in touch with Lanlang to get more information and free samples of ion exchange for nitrate removal.