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United Water Inc. CR Series Media

CR 26

Iron, Manganese, Hydrogen Sulfide and Arsenic Removal Media

CR 26 is a special media designed to provide excellent catalytic properties required for removal of many contaminantsfrom

potable and non-potable aqueous streams. CR 26 is an insoluble media that oxidizes species in solution includinghydrogen

sulfide, iron and manganese. Metal-oxide nano-particles are precipitated within the resin bed where they form very strongchemical

bonds with arsenite (As III) and arsenate (As V). This allows CR 26 to thoroughly and effectively remove arsenicalong with Fe, Mn

and H

Physical Chemical Properties

Physical Form:

Moisture Content:

Net Weight (as shipped):

Particle size:

>1.2 mm %

<0.3 mm %

Effective Size:

Uniformity Coefficient:

Recommended Operating Conditions

Influent pH:

Dissolved oxygen:

Freeboard:

Free chlorine:

Organic matter:

Total dissolved solids:

Total suspended solids:

Packing

CR 26 is supplied in 1 cubic foot poly bags.

Storage

Resins require proper care at all times. The resinsmust

never be allowed to dry. Recommended storage

temperature is between 65°F to 110°F.

Safety Information

CR 26 is not a hazardous product and is not WHMIS

controlled.

Caution: Acidic and basic regenerant solutions are corrosive and should be

handled in a manner that will prevent eye and skin contact. Before using

strong oxidizing agents in contact with ion exchange resin, consult sources

knowledgeable in the handling of these materials.

CR 26 Features

Black, moist

Chemical Free Regeneration

spherical beads

CR 26 does not require chemicals such as chlorine

46 to 52%

dioxide, potassium permanganate, chlorine or sodium

800 kgs/m3,

chloride brine solution for regeneration. The oxidative

approximately

chemical locked inside CR 26 beads is regenerated via

0.3 to 1.2 mm

the dissolved oxygen in the backwash water.

5.0 maximum

1.0 maximum

Potable and Non-Potable Water Applications

0.50 to 0.60 mm

CR 26 requires less contact time and is like standard

1.7 maximum

softening resins in bulk density and handling makingit an

ideal choice for point-of-entry (POE) systems. CR 26 can

be backwashed at lower flow rates to achieve ideal bed

6.0 to 9.0

expansion needed to remove metal-oxide precipitates

2 mg/l or 15% greater

generated during the service cycle. CR26 is easy to

than Iron (Fe) content

handle versus other oxidative media and many naturally

30% to 50%

occurring zeolites.

0.5 to 1.0 mg/l

Multiple Contaminant Removal

Less than 1.0 ppm

2500 ppm maximum

CR 26 was initially designed for the selective removal of

iron and manganese but testing has shown the product

<1 ppm

to be ideal for multi-contaminant removal. Seepage 3 of

this bulletin for a summary of various tests performed to

date.

Expected Service Life

Due to the unique nature of CR 26 and its functionas an

oxidizing agent encapsulated within an ion exchangebead,

a long service life of 7 to 10 years is expected.

UNITED WATER INC.

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