ResinTech SBG2, Strong Base Type 2 Anion Exchange Resin, Cl Form, 1 Cubic Foot
ResinTech SBG2 is a chloride form type 2 gel strong base anion resin. SBG2 has high capacity, better chemical efficiency and good resistance to fouling. SBG2 is intended for use in the chloride form for removal of contaminants such as nitrate, arsenate, chromate, uranium, etc., as well as in the hydroxide form for all types of deionizing systems. SBG2-OH is especially well suited for use in systems where amine odors might be objectionable.
Features & Benefits
- High Operating Capacity: Type 2anion provides high regeneration efficiency and high throughput per pound of caustic regenerant
- Multiple Contaminant Removal: Useful as a general purpose non-selective anion resin when operated in the chloride cycle for the removal of sulfates, nitrates, arsenic, uranium, chromate and other drinking water contaminants
- Superior Physical Stability: 93% plus sphericity and high crush strengths together with carefully controlled particle distribution provides long life and low pressure drop
- Complies With US FDA Regulations: Conforms to paragraph 21CFR173.25 of the Food Additives Regulations of the US FDA
Applications:
- Demineralization: ResinTech SBG2-OH can be used as the anion component in a variety of demineralization applications where a hydroxide form anion resin is coupled with a hydrogen form cation resin. SBG2-OH is more efficiently regenerated than type 1 resins and often has higher operating capacities. SBG2-OH has less objectionable odor than typically associated with type 1 anion resins.
- Trace Contaminant Removal: SBG2 has high capacity in the chloride form and can be used to remove a variety of trace contaminants, even when that contaminant is not highly preferred compared to the other bulk ions in the feedwater. Useful capacities are obtained when the feed TDS is substantially less than the resins internal TDS. Uranium, chromate and perchlorate are particularly well removed. Arsenate and selenate are well removed but can be chromatographically displaced by sulfate and other ions.
- Nitrate Removal: SBG2 can be used in the chloride cycle to reduce nitrates along with sulfates. Although high operating capacities and high salt efficiency can be obtained, there is also the possibility of nitrate dumping. Use of chloride form anion resin reduces pH during the early portion of the exhaustion cycle. When treating waters with high hardness the brine dilution and displacement waters should be softened and a low hardness salt used to prevent scaling during regeneration.
- Dealkalizer: SBG2 can be used in the chloride cycle to remove bicarbonate alkalinity. The exchange is somewhat unfavorable and results in modest capacity and substantial alkalinity leakage. When the dealkalizer follows a water softener and when low hardness salt is used, a small amount of sodium hydroxide can be mixed in with the salt to obtain higher operating capacity and lower leakage.
- Nitrate Removal: SBG2 can be used in the chloride cycle to reduce nitrates along with sulfates. Although high operating capacities and high salt efficiency can be obtained, there is also the possibility of nitrate dumping. Use of chloride form anion resin reduces pH during the early portion of the exhaustion cycle. When treating waters with high hardness the brine dilution and displacement waters should be softened and a low hardness salt used to prevent scaling during regeneration.
- Dealkalizer: SBG2 can be used in the chloride cycle to remove bicarbonate alkalinity. The exchange is somewhat unfavorable and results in modest capacity and substantial alkalinity leakage. When the dealkalizer follows a water softener and when low hardness salt is used, a small amount of sodium hydroxide can be mixed in with the salt to obtain higher operating capacity and lower leakage.
- Polymer Structure: Styrene/DVB
- Polymer Type: Gel
- Functional Group: Trimethylamine
- Physical Form: Spherical Beads
- Ionic Form as Shipped: Chlorine
- Total Capacity: >1.4 meq/mL
- Water Retention: 36 to 45 percent
- Approximate Shipping Weight: 44 lbs per cu. ft.
- Screen Size Distribution (US Mesh): 16 to 50
- Maximum Fines Content (< 50 mesh): 1%
- Minimum Sphericity: 93%
- Uniform Coefficient: 1.6 approx.
- Resin Color: White to Amber
Suggested Operating Conditions
- Maximum Continuous Temperature: 170°F
- Minimum Bed Depth: 24 Inches
- Backwash Expansion: 25 to 50 percent
- Maximum Pressure Loss: 20 psi
- Operating pH Range: 0 to 14 SU
- Regenerant Concentration:
- Hydroxide Cycle: 2 to 6 % NaOH
- Salt Cycle: 2 to 10% NaCl
- Regenerant Level: 4 to 10 lbs per cubic foot
- Regenerant Flow Rate: 0.25 to 1.0 gpm per cu. ft.
- Regenerant Contact Time: > 40 minutes
- Displacement Flow Rate: Same as dilution water
- Displacement Volume: 10 to 15 gallons per cu. ft.
- Rinse Flow Rate: Same as service flow
- Rinse Volume: 35 to 60 Gallons per cubic foot
- Service Flow Rate: 1 to 10 gpm per cubic foot
