Resin to remove Perchlorate

Catalog NumberACMA00044318

CategoryOther Applications Resins

Application

Potable Water Treatment

Adsorbent Capacity

Perchlorate ≥25.0g/L

Code

AOA-26

Ironic Form

Cl

Mass Capacity

≥3.0mmol/g

Moisture Content

52-62 %

Particle Size

0.315-1.25mm (≥95%)

Remarks

Especially used to remove perchloric acid and purify water supply and drinking water, the selectivity to perchloric acid is excellent.

Total Exchange Capacity

≥ 3.00 mmol/g

Type

Others

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Case Study

Resin to Remove Perchlorate as an Ion Exchanger for Drinking Water Treatment

Darracq, Guillaume, et al. Journal of Water Process Engineering 3 (2014): 123-131.

Ion exchange resin serves as a selective sorbent for removing perchlorate (ClO₄^-) from drinking water.
Experimental Protocol: Five cationic resins (A532E, A520E, A400E, PWA-5, PSR-2) are evaluated in batch kinetic and isotherm experiments. Approximately 1.0 g of conditioned resin is added to 2 L of deionized water spiked with 10 mg/L perchlorate and stirred at 150 rpm at 25°C. For isotherm tests, 100 ± 5 mg of dried resin is added to 150 mL solutions with perchlorate concentrations from 0.5 to 100 mg/L and equilibrated for 30 h.
Performance Evaluation: The Langmuir model indicates maximal exchange capacities from 115 mg/g (A532E) to 183 mg/g (A400E). The perchlorate-specific resins A532E and PSR-2 show the highest selectivity with distribution coefficients of 6378 and 3898 L/g, respectively, in deionized water. A532E and PSR-2 maintain high performance even in the presence of competing nitrate and sulfate ions, confirming their suitability for trace perchlorate removal from natural waters.

Resin to Remove Perchlorate as an Adsorbent with Reversible Sorption Properties

Yoon, In-Ho, et al. Journal of hazardous materials 164.1 (2009): 87-94.

Anion exchange resin (SR-7) functions as a reversible adsorbent for perchlorate removal from contaminated water.
Experimental Protocol: Batch adsorption and desorption tests are conducted by mixing 0.5 g of SR-7 resin with 25 mL of 10 mg/L perchlorate solution containing 0.5% NaCl at pH 7.0 0.5, shaken at 130 rpm for 24 h. For isotherm studies, 0.5 g resin is added to 25 mL solutions with perchlorate from 3 to 900 mg/L. Column regeneration tests use 10 mL of perchlorate-saturated resin eluted with 0.5% and 5% NaCl solutions at flow rates of 0.2-5.0 mL/min.
Performance Evaluation: The Freundlich capacity coefficient K is 12.6 (mg/g)/(mg/L)^v for SR-7 resin. Perchlorate adsorption and desorption reach equilibrium within 30 min. The adsorption is fully reversible, with adsorption and desorption isotherms overlapping. Column elution with 5% NaCl achieves complete perchlorate recovery. The resin maintains adsorption capacity even at 15% NaCl, demonstrating strong perchlorate selectivity.

• Application: Potable Water Treatment
• Adsorbent Capacity: Perchlorate ≥25.0g/L
• Code: AOA-26
• Ironic Form: Cl
• Mass Capacity: ≥3.0mmol/g
• Moisture Content: 52-62 %
• Particle Size: 0.315-1.25mm (≥95%)
• Remarks: Especially used to remove perchloric acid and purify water supply and drinking water, the selectivity to perchloric acid is excellent.
• Total Exchange Capacity: ≥ 3.00 mmol/g
• Type: Others