Boron removing resin

Catalog NumberACMA00044317

CategoryOther Applications Resins

Appearance

Milky white to beige opaque beads

Application

Potable Water Treatment

Adsorbent Capacity

Boron ≥15.0g/L

Code

AOA-28

Ironic Form

OH

Moisture Content

43-53 %

Particle Size

0.315-1.25mm (≥95%)

Remarks

Widely used to remove boron in potable water and irrigation water with large exchange capacity and fast exchange speed.

Temperature Limit

75℃

Total Exchange Capacity

≥0.80 mmol/ml

Type

Others

Volume Capacity

≥0.8mmol/ml

Whole Beads After Osmotic Attrition

≥95%

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Case Study

Boron Removing Resin with Ion Exchange-Microfiltration Hybrid Membrane System for Water Treatment

Alharati, Assma, et al. Journal of water process engineering 17 (2017): 32-39.

A hybrid membrane process combining ion exchange resin in batch mode with ceramic microfiltration was developed for boron removal from water, providing a simplified configuration that eliminates the need for continuous fresh resin addition.
Experimental Protocol: A boron-selective ion exchange resin was ground to 40-60 um particle size and suspended in a 3 L reactor. Boron solution (1-10 mg/L) was continuously fed at a flowrate equal to the permeate rate to maintain constant volume. A tubular ceramic microfiltration membrane (0.0075 m2 area, 0.1 or 0.45 um pore size) retained the resin in a closed loop at 3.2 m/s tangential velocity, pH 8.2, and 20-22 degrees C. Parameters investigated included resin dosage (1-3.33 g/L), transmembrane pressure (1-3 bar), and membrane pore size. Resin and membrane were simultaneously regenerated with HCl and NaOH.
Performance Evaluation: Boron concentration below the 0.3 mg/L threshold was achieved and maintained. At 3.33 g/L resin dosage, the breakthrough threshold was sustained for over 150 min treating more than 5 L of water (over 0.5 L/g resin). At 2.33 g/L, the 0.3 mg/L limit was maintained for 105 min treating 3.5 L. Higher transmembrane pressure (2-3 bar) increased permeate flux but reduced treatment volume at breakthrough due to insufficient residence time. The 0.45 um membrane similarly increased flux but decreased effectiveness compared to the 0.1 um membrane. Five sorption-regeneration cycles with 0.37% HCl and 1% NaOH showed consistent performance with boron removal reaching 100% after the first regeneration cycle.

Boron Removing Resin Adsorption Kinetics and Regeneration by Fractional Ion Exchange

Darwish, Nawaf Bin, et al. Desalination 370 (2015): 1-6.

The performance of fractionized ion exchange resin with particle sizes down to 1-45 um was evaluated for boron removal from water, with a focus on kinetics, sorption capacity, and the effects of operating parameters including the presence of competing ions.
Experimental Protocol: An ion exchange resin based on macroporous polystyrene with N-methyl-D-glucamine functional groups was ground and sieved into three fractions: 1-45, 150-180, and 500-700 um. Batch sorption experiments were conducted at boron concentrations of 1.5-15.0 mg/L, resin dosages of 0.2-3 g/L, pH 4-10.5, and temperatures of 15-35 degrees C. The effect of side ions (NaCl at 5000-35000 mg/L, Na2SO4 at 3000-10000 mg/L, MgCl2 at 5000-20000 mg/L) was examined. Kinetic data were fitted to pseudo-first-order and pseudo-second-order models. Regeneration was tested using HCl and H2SO4 followed by NaOH.
Performance Evaluation: The 1-45 um fraction achieved 75.4% boron removal within 60 min, compared to 48.2% for the 150-180 um fraction and 15.0% for the 500-700 um fraction, with BET surface areas of 26.6, 24.5, and 20.8 m2/g respectively. Complete boron removal was achieved within 10 min at 3 g/L dosage. The pseudo-second-order model provided excellent fit (r2 = 0.9949-0.9963), indicating that boron complexation rate with N-methyl-D-glucamine groups, not diffusion, was rate-limiting. Optimal pH was 8 with 90% removal efficiency. High concentrations of NaCl, Na2SO4, and MgCl2 did not affect boron removal, confirming high selectivity. Temperature increase from 15 to 35 degrees C enhanced removal due to accelerated Brownian motion and increased borate ion fraction.

• Appearance: Milky white to beige opaque beads
• Application: Potable Water Treatment
• Adsorbent Capacity: Boron ≥15.0g/L
• Code: AOA-28
• Ironic Form: OH
• Moisture Content: 43-53 %
• Particle Size: 0.315-1.25mm (≥95%)
• Remarks: Widely used to remove boron in potable water and irrigation water with large exchange capacity and fast exchange speed.
• Temperature Limit: 75℃
• Total Exchange Capacity: ≥0.80 mmol/ml
• Type: Others
• Volume Capacity: ≥0.8mmol/ml
• Whole Beads After Osmotic Attrition: ≥95%