AQUAPAN®
chelating ion-exchange fiber

  AQUAPAN® chelating cation-exchange fiber effectively and exeptionally fast removes heavy metal ions from water as compared to the state of the art cation-exchange and chelating granular resins. It retains its high selectivity toward heavy metals in the presence of competing hardness metal ions. 

  AQUAPAN® contains carboxylic cation exchange and nitrogen-containing anion exchange groups. Both types of groups form chelating centers, which adsorb heavy metal ions with excellent selectivity.


Kinetics of adsorption of Cadmium onto AQUAPAN and CHELEX-20 granular ion-exchange resin (Biored, USA)
(1 g of adsorbents per 200 ml 170 mg/l solution of Cadmium nitrate)


Main properties of AQUAPAN® fiber:

Criteria

AQUAPAN

CHELEX 20

Cation-exchange capacity

2.0 meq/g

0.8 meq/g

Anion-exchange capacity

1.0 meq/g

0.4 meq/g

Specific adsorption for heavy metal ions

0.5 mmol/g

0.4 mmol/g

Selectivity constant Cd-Ca

200

30

 

 

 

 

 

PANNON-AQUAPHOR Kft. 2004.