Perchlorate Removal Filterwhole House
What is Perchlorate?
Perchlorate may occur naturally, particularly in arid regions. Manufactured forms of perchlorate include perchloric acid and salts such as ammonium perchlorate, sodium perchlorate and potassium perchlorate. Perchlorate is found as a natural impurity in nitrate salts , and are sometimes used to produce nitrate fertilizers and other products. Perchlorate is commonly used as an oxidizer in solid propellants, munitions, fireworks, airbag initiators for vehicles, matches and signal flares . It is also used in some electroplating operations and found in some disinfectants and herbicides.
What are perchlorate’s health effects?
What are the treatment methods for Perchlorate in water?
Common treatment technologies include ion exchange, bioreactors and in situ bioremediation.
Ion Exchange is a preferred means of perchlorate removal for the following reasons:
Our automatic backwashing filters are equipped with automated backwash control heads to backwash the media at preset intervals. Whilst the filter media is not regenerated, the backwash serves to reclassify the media bed.
LSC 106 Anion Resin
LSC 106 Anion exchange resins exhibit very strong affinities to the perchlorate ion.
It’s special matrix and tributylamine function group makes it highly selective for perchlorate.
In commercial applications, LSI 106 shows good mechanical strength and excellent mechanical strength to osmotic and thermal shock.
They can be used on a disposable or a regenerable basis. Type 1 or type 2 strong base anion resins have a higher affinity for the perchlorate ion than the nitrate or sulphate ions. This can lead to a long service run for perchlorate removal, but in cases where there is also nitrate present, the potential for nitrate dumping exists.
The standard SBA resins can be expected to remove perchlorates with capacities of between 2,000 to 10,000 bed volumes.
Selective Resins
“Targeted treatment” by the use of selective anion resins have helped to lower the overall treatment cost of perchlorate removal.A fair number of selective anion resins have been synthesised, but only two are available commercially, the tributylamine and triethylamine types. Each of the two types of selective resins has its own advantages, depending on the application. They both show very low affinities for sulphate and therefore practically eliminate the potential for nitrate dumping by sulphate. The triethlyamine structure, because of its smaller size, yields a resin with a higher operating capacity than the tributylamine (TBA) type. However, the TBA may provide lower chemical operating costs in large systems when regenerant use is minimised through brine reclamation schemes. The TBA resin shows the best promise as a selective resin for perchlorate removal.The TBA resin has shown throughput capacities more than two orders of magnitude higher than the standard anion resin. For point-of-use, this could result in a cartridge-type installation that would only need changing out once or twice a year.
To contact Pacific Water Technology about Perchlorate Removal Filterwhole House use Get a quote.
What is Perchlorate?
Perchlorate may occur naturally, particularly in arid regions. Manufactured forms of perchlorate include perchloric acid and salts such as ammonium perchlorate, sodium perchlorate and potassium perchlorate. Perchlorate is found as a natural impurity in nitrate salts , and are sometimes used to produce nitrate fertilizers and other products. Perchlorate is commonly used as an oxidizer in solid propellants, munitions, fireworks, airbag initiators for vehicles, matches and signal flares . It is also used in some electroplating operations and found in some disinfectants and herbicides.
What are perchlorate’s health effects?
What are the treatment methods for Perchlorate in water?
Common treatment technologies include ion exchange, bioreactors and in situ bioremediation.
Ion Exchange is a preferred means of perchlorate removal for the following reasons:
Our automatic backwashing filters are equipped with automated backwash control heads to backwash the media at preset intervals. Whilst the filter media is not regenerated, the backwash serves to reclassify the media bed.
LSC 106 Anion Resin
LSC 106 Anion exchange resins exhibit very strong affinities to the perchlorate ion.
It’s special matrix and tributylamine function group makes it highly selective for perchlorate.
In commercial applications, LSI 106 shows good mechanical strength and excellent mechanical strength to osmotic and thermal shock.
They can be used on a disposable or a regenerable basis. Type 1 or type 2 strong base anion resins have a higher affinity for the perchlorate ion than the nitrate or sulphate ions. This can lead to a long service run for perchlorate removal, but in cases where there is also nitrate present, the potential for nitrate dumping exists.
The standard SBA resins can be expected to remove perchlorates with capacities of between 2,000 to 10,000 bed volumes.
Selective Resins
“Targeted treatment” by the use of selective anion resins have helped to lower the overall treatment cost of perchlorate removal.A fair number of selective anion resins have been synthesised, but only two are available commercially, the tributylamine and triethylamine types. Each of the two types of selective resins has its own advantages, depending on the application. They both show very low affinities for sulphate and therefore practically eliminate the potential for nitrate dumping by sulphate. The triethlyamine structure, because of its smaller size, yields a resin with a higher operating capacity than the tributylamine (TBA) type. However, the TBA may provide lower chemical operating costs in large systems when regenerant use is minimised through brine reclamation schemes. The TBA resin shows the best promise as a selective resin for perchlorate removal.The TBA resin has shown throughput capacities more than two orders of magnitude higher than the standard anion resin. For point-of-use, this could result in a cartridge-type installation that would only need changing out once or twice a year.
To contact Pacific Water Technology about Perchlorate Removal Filterwhole House use Get a quote.
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