Specialty Resin
swtwater.com ProSelect™ Tannin High Purity
ProSelect Tannin High Purity is a chloride form acrylic macroporous strong base anion resin. It has an aliphatic chemical structure and allows organic ions to move in and out of the resin easily. ProSelect Tannin High Purity is intended for use in the chloride form as an organic trap when the highest possible removal of naturally occurring organics is needed.
ER20006-HP Pressure Drop Graph
PRESSURE DROP — The graph above shows the expected pressure loss per foot of bed depth as a function of flow rate at various temperatures.
ER20006-HP Backwash Expansion Graph
BACKWASH — The graph above shows the expansion characteristics as a function of flow rate at various temperatures.
Organic Trap
ProSelect Tannin High Purity has the highest possible capacity for tannins and other naturally occuring organic matter (NOM) due to its acrylic polymer backbone and macroporous physical structure. Tannins and similar naturally occurring organics cause most of the color in potable waters. ProSelect Tannin High Purity removes these substances and is easily regenerated with sodium chloride, in the same fashion as a water softener. Organic trap resins should be regenerated frequently to prevent the NOM from building up inside the resin beads and eventually causing fouling. For industrial applications it is sometimes useful to add a little caustic to the brine in order to increase capacity and reduce leakage. Use of chloride form anion resin reduces the pH of the product water during the early part of the exhaustion cycle.
ER20006-HP Organic Removal Capacity Graph
ER20006-HP TOC Leakage Graph
CAPACITY AND LEAKAGE — Capacity and leakage data are based on 2 gpm/cu.ft. flow rate, pH near neutral, and 36 inch minimum bed depth. Capacity is for TOC plus sulfate. No engineering downgrade has been applied.
ProSelect™ is a trademark of Safe Water Technologies, Inc.
  High capacity for organics  
  Excellent regeneration efficiency  
  Controlled particle size, low pressure drop  
  Superior physical stability  
  Conforms to paragraph 21CFR173.25 of the Food Additives Regulations of the US FDA  
  NSF/ANSI-61 Certified for Material Safety  
Sodium Form ER20006-HP
Polymer Structure Acrylic/DVB
Polymer Type Macroporous
Functional Group Quaternary Amine (Quaternary Ammonium Compound)
Physical Form Spherical beads
Resin Color White to cream
Ionic Form (as shipped) Chloride
Total Capacity > 0.8 meq/mL
Water Retention 63 to 72%
Screen Size Distribution 16 to 50 (US mesh)
Maximum Fines Content 1% (< 50 mesh)
Minimum Sphericity 93%
Uniformity Coefficient 1.7 approx.
Approx. Ship. Wt. 44 lb/cu.ft.
Packaging 1 cu.ft. bags
Maximum Temperature 150°F (66°C)
Minimum Bed Depth 24 inches
Backwash Expansion 25 to 50%
Maximum Pressure Loss 20 psi
Operating pH Range 0 to 14 (< 8.0 pH prevents fishy smell)
Regenerant Concentration
  Salt Cycle
2 to 10% NaCl
Regenerant Level 4 to 10 lb/cu.ft.
Regenerant Flow Rate 0.25 to 1.0 gpm/cu.ft.
Regenerant Contact Time > 60 minutes
Displacement Flow Rate Same as dilution water
Displacement Volume 10 to 15 gal/cu.ft.
Rinse Flow Rate Same as service flow
Rinse Volume 35 to 60 gal/cu.ft.
Service Flow Rate
  Average Flow
  Peak Flow
1 to 4 gpm/cu.ft.
< 10 gpm/cu.ft.
NOTE: Prior to first use for potable water, resin should be backwashed for a minimum of 20 minutes, followed by 10 bed volumes of downflow rinse.
CAUTION: DO NOT MIX ION EXCHANGE RESINS WITH STRONG OXIDIZING AGENTS. Nitric acid and other strong oxidizing agents can cause explosive reactions when mixed with organic materials such as ion exchange resins.
SWT Ion Exchange Resin Guide
Cation Resin Selection Chart
Resin Capacity Comparison Chart
This information has been gathered from standard materials and or test data that is believed to be accurate and reliable. Nothing herein shall be determined to be a warranty or representation expressed or implied with respect to the use of such information or the use of the goods described for any particular purpose alone or in combination with other goods or processes, or that their use does not conflict with existing patent rights. No license is granted to practice any patented invention. It is solely for your consideration, investigation and verification.
Safe Water Technologies, Inc.
996 Bluff City Boulevard
Elgin, IL 60120 USA
Telephone: +1.847.888.6900
Facsimile: +1.847.888.6924
E-mail: info@swtwater.com

Last Updated: December 30, 2021