BEAR RIVER ZEOLITE

 
email: tfl3543@blackfoot.net

BEAR RIVER ZEOLITE CO., INC.
4005 East Glendale Road
Preston, ID 83263

tel: 406-827-3523
fax: 406-827-3543



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SWIMMING POOLS

BRZ™ FOR SWIMMING POOL FILTER MEDIA

PRODUCT DESCRIPTION

·        Size: 14 x 40 mesh

·        Color: Pale green when dry, dark green when wet

·        Particle size: Average 0.7 mm

·        Uniformity index: 1.9

·        NSF: ANSI/NSF Standard 50

·        Weight: Density 55 pounds per cubic foot (880kgs/cubic meter)

·        Surface Area: 24.9 square meters per gram

·        GRAS: Classified as “GRAS” (generally regarded as safe) under CFR 21 Part 182.279, 40 CFR Part 180.1001

·        Hardness: Low clay, hard, abrasion resistant

·        Availability: Sold as “Zeo Sand ® Natural Zeolite Filter Media” by Zeo Inc. zeosand@zeoinc.com, www.zeoinc.com 800-530-8283 or 972-542-0053
 

APPLICATIONS

·        Typically 25 to 30 pounds of BRZ™ replaces a 50 pound bag of sand.
 

THEORY OF ZEOLITE FILTER MEDIA

The advantages of using BRZ™ in physical filtration systems include the following:

·        The high internal and external surface area of BRZ™ (@25m2/g) exceeds that of quartz by more than 10 times.

·        BRZ™ pore space permeability for water transmission through the grains or fragments is 100% compared to non-permeable quartz grains.

·        BRZ™ will tend to make slightly acidic (e.g. pH - 5.5-6.0) water more near neutral.

·        The amount, or layer thickness of BRZ™ in the filtration systems can be much thinner (smaller volume) than quartz sand systems - because of the high “surface area and pore space” of BRZ™.

·        BRZ™ fragments tend to be discoid shaped, rather than round, thus presenting a large surface area (per unit of mass) (see diagram below).

The density of 2-4 mm granules of BRZ™ is about 55-60 lb/ft3, which is about half of that of quartz grains of similar size. Thus the volume of one ton of BRZ™ is twice that of quartz sand.
 

WATER PATHS FOR QUARTZ VERSUS ZEOLITE IN FILTRATION

BENEFITS

·        A 25 pound bag of BRZ™ has the surface area of over 50 NFL football fields, while a 50 pound bag of sand only covers football field.

·        Increased flow rate

·        DE like clarity. Nominal 3 to 5 micron rating

·        Reduces backwash time by up to 50%

·        Higher loading capacity than sand

·        Less eye burning. BRZ™ exchanges ammonium from urine directly into the crystal lattice where it is not water soluble. As a result, less chlorine is use and fewer chloramines are formed (that burn the eyes).

·        Less chlorine is needed

·        Life expectancy is the same as sand

·        Used BRZ™ can be applied as a soil amendment for gardens and potted plants
 

COMPARISON OF ZEOLITE FILTER PERFORMANCE VS CONVENTIONAL MEDIA: Pressure Vessels

FILTER

MEDIA

BED

COMPOSITION

FILTRATION

RATING (nominal)

SOLIDS LOADING

CAPACITY

Sand

(6-12 gpm/ft2)

20 x 40 mesh

~20µ

1X

Sand/Anthracite

(6-12 gpm/ft2)

#1 anthracite (66%)

20 x 40 mesh sand

(34%)

~15µ

1.4X

Multimedia

(10-12 gpm/ft2)

#1 anthracite (66%)

20 x 40 mesh sand

(30%)

# 50 garnet (15%)

# 16 garnet (10%)

~12µ

1.6X

Zeolite*

(10-20 gpm/ft2)

14 x 40 mesh (100%)

~5µ

2.8X

 

COMPARISON OF ZEOLITE FILTER PERFORMANCE VS CONVENTIONAL MEDIA: Gravity Flow Beds

FILTER

MEDIA

BED

COMPOSITION

FILTRATION

RATING (nominal)

SOLIDS LOADING

CAPACITY

Sand

(2 gpm/ft2)

20 x 40 mesh

~20µ

1X

Sand/Anthracite

(2 gpm/ft2)

#1 anthracite (66%)

20 x 40 mesh sand

(34%)

~15µ

1.4X

Zeolite*

(4 gpm/ftdesign)

14 x 40 mesh

~5µ

2.6 - 2.8X