Blake Water Solutions Specialist Series Operation And Instruction Manual - Page 13

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1. Programming Screens

Media

Physical Characteristics

Color: black

Density: 40 – 45 lbs. per CF

Birm®

Mesh size: 10 x 50

BWS™

Color: black / brown / whitish

Aeration Mix

Density: 45 lbs. per CF

Color: whitish

Calcite

Density: 100 lbs. per CF

Georgia

Mesh size: 16 x 40

Marble

CaCO3: 95% min

MgCO3: 3.0% max

CENTAUR®

Color: black

Catalytic

Density: 34 lbs. per CF

Activated

Mesh size: 12 x 40

Carbon

Color: light green

Chemsorb®

Density: 55 lbs. per CF

Mesh size: 14 x 40

Color: brownish white

Corosex®

Density: 75 lbs. per CF

Mesh size: 6 x 16

Color: light gray to whitish

Filter-AG®

Density: 24 - 26 lbs. per CF

Mesh size: 10 x 34

Color: black

Katalox

Density: 66 lbs. per CF

Light®

Mesh size: 14 x 30

Color: black

Greensand

Density: 85 lbs. per CF

Plus™

Mesh size: 18 x 60

Color: dark brown

MTM®

Density: 45 - 50 lbs. per CF

Mesh size: 12 x 50

FILTRATION MEDIA OVERVIEW

Birm® is a granular, silica based, manganese dioxide coated, filter media commonly used for the

reduction of iron and/or manganese from water supplies. It acts as an insoluble catalyst to

enhance the oxidation reaction between dissolved oxygen in the water and the iron and

manganese compounds. The oxidized minerals are precipitated out of solution and removed by

filtration in the bed. Birm offers long material life with relatively low attrition loss, a wide

temperature performance range and extremely high removal efficiency. Regeneration is not

required. Certified to NSF/ANSI Standard 61.

BWS Aeration Mix is a custom media blend for use with Aeration Iron Oxidizing (AIO) filters for

the reduction of iron and/or manganese from water supplies. It consists of a proprietary mixture

of Birm®, Calcite®, Corosex® and Filter Ag® medias for pH correction, oxidation acceleration,

and particle filtration in a single media tank. Due to the sacrificial nature of both Calcite and

Corosex, periodic replenishment will be required. Birm and Filter Ag are durable minerals with a

life expectancy of 8-10 years.

Calcite is a naturally occurring, crushed and screened white marble media which is used to

neutralize acidic or low pH waters to a neutral, less corrosive state. Upon contact with Calcite,

acidic waters slowly dissolve the calcium carbonate to raise the pH which reduces the potential

leaching of copper, lead and other metals found in typical plumbing systems. Calcite corrects pH

only enough to reach a non-corrosive equilibrium. It does not overcorrect under normal

conditions. Periodic backwashing will prevent packing, reclassify the bed and maintain high

service rates. The media will have to be periodically replenished as the Calcite is depleted. As

the Calcite's calcium carbonate neutralizes the water, it will increase hardness and a softener

may become necessary after the neutralizing filter. Certified to NSF/ANSI Standard 61.

CENTAUR is engineered carbon with enhanced catalytic properties to accelerate and promote

oxidation, reduction, decomposition, substitution reactions for the elimination of chloramines,

hydrogen sulfide and iron from drinking water. Advantages include low water-soluble ash content,

wide pH operating range, and it is not impregnated with metals or alkali, eliminating safety

concerns. Certified to NSF/ANSI Standard 42.

Chemsorb is a natural Zeolite mineral with a highly porous granular surface area that provides

superior filtration down to 5 micron at high flows up to 12-18 gpm/ft². Advantages include the

removal of a wide range of colloidal and soluble inorganic contaminants by surface sorption,

chemical-binding, charge-neutralization, coagulation reactions, and/or ion-exchange phenomena.

Certified to NSF/ANSI Standard 61.

Corosex® is a specially processed hard, bead-like magnesium oxide media, adapted for use in

filters to neutralize acidity by increasing the pH value. Corosex neutralizes free carbon dioxide in

water correcting acidic conditions and rendering it less corrosive. Corosex is a highly reactive

magnesium oxide and is most effective where pH correction is substantial or high flows are

required. Under certain low flow conditions, Corosex may over correct and create a highly basic

(high pH) condition. As Corosex's neutralizes the water, it will increase hardness and a softener

may become necessary after the neutralizing filter. Certified to NSF/ANSI Standard 61.

Filter-AG is a granular pumicite media with a fractured and highly irregular surface area. This

unique structure creates a complex flow path allowing for maximum removal of suspended matter

throughout the filter bed. It typically removes suspended solids down to 20 – 40 microns. Filter-

AG's larger particle size creates less pressure loss and high dirt removal capacity resulting in

longer filter runs. Due to this and its lighter weight, it works very well in dual bed or multi-media

filtration systems (in addition to single beds). Certified to NSF/ANSI Standard 61.

Katalox-Light® is an engineered catalytic ZEOSORB media coated with manganese dioxide. It is

used for high level filtration, color and odor removal, Iron, Manganese, Hydrogen sulfide removal,

and pH correction. Under certain conditions, an oxidizer such as H

the catalytic oxidation on the surface of the media. Certified to NSF/ANSI Standard 61.

GreensandPlus™ is a granular, silica based, manganese dioxide coated, filter media commonly

used for the removal of soluble iron, manganese and hydrogen sulfide from well water. The

manganese dioxide coating acts as a catalyst in the oxidation reaction of iron and manganese.

Chemical regeneration is necessary. Depending on the application, regeneration may be

continuous (CR) or intermittent (IR). Certified to NSF/ANSI Standard 61.

MTM is a granular manganese dioxide filtering media used for reducing iron, manganese and

hydrogen sulfide from water. Its active surface coating oxidizes and precipitates soluble iron and

manganese. Hydrogen sulfide is oxidized to sulfur. The precipitates are then filtered out in the

granular bed and removed by backwashing. Chemical regeneration is necessary. Depending on

application, regeneration may be continuous or intermittent. Certified to NSF/ANSI Standard 61.

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