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How KDF Works

Typical Redox Reactions
Harmful chlorine is removed by changing free chlorine into water-soluble chloride ions.
KDF process media act as catalysts to change soluble ferrous cations into insoluble ferric hydroxide, which is easily removed by regular backwashing.
KDF process media reduce hydrogen sulfide to insoluble cupric sulfide, which can be removed by backwashing.
KDF process media are high-purity copper-zinc granules used in a number of pre-treatment, primary treatment, and wastewater treatment applications. KDF media supplements or replaces existing technologies to dramatically extend life of the system, control heavy metals and microorganisms, lower total cost, and decrease maintenance. KDF process media works to reduce or remove chlorine, iron, hydrogen sulfide, lead, mercury, calcium carbonate, magnesium, chromium, bacteria, algae, and fungi.

KDF media employs an old process in a new way-the oxidation and reduction of ions, known as redox. In short, the redox process works by exchanging electrons with contaminants. This give and take of electrons converts many harmful contaminants into harmless components, such as chlorine to chloride. Other contaminants, including heavy metals, bond to the KDF media, which greatly reduces or virtually eliminates these substances.

KDF process media control microorganisms in two ways. The first is a by-product of redox; the exchange of electrons sets up an electrolytic field in which most microorganisms can't survive. Second, the process of forming hydroxyl radicals and peroxides from some of the water molecules interferes with the microorganisms' ability to function.


What are KDF Process Media and how do they work?

KDF Process Media are high-purity, granulated copper and zinc-based alloys that treat water through a process based upon the principle of redox (Oxidation-Reduction). Originally, KDF was shorthand for Kinetic Degradation Fluxion.

We can explain redox like this: KDF Fluid Treatment’s unique combination of copper and zinc creates an electro-chemical reaction. During this reaction, electrons are transferred between molecules, and new elements are created. Some harmful contaminants are changed into harmless components. Free chlorine, for instance, is changed into benign, water-soluble chloride, which is then carried harmlessly through the water supply. Similarly, some heavy metals such as copper, lead, mercury and others, react to plate out onto the medium’s surface, thus being effectively removed from the water supply.

*The material above is provided by KDF Fluid Treatment, Inc.

In addition to the benefits of the KDF Process Media, your WaterCoolerBoy water filters include the benefits of Granular Activated Charcoal (GAC) as follows:



0 - Not an application for GAC
1 - POOR not recommended use
2 - FAIR limited application
3 - GOOD very acceptable results
4 - VERY GOOD a proven application
5 - EXCELLENT a proven application
GAC - Granular Activated Carbon is one of the most powerful and efficient methods for improving drinking water quality. The table shows many of the problems that are addressed by GAC. Keep in mind that with municipally treated water it is highly unlikely that the majority of these contaminants will ever be present. Chlorine (and its derivatives), is the primary concern. THM's & PCB's may also be a concern. As shown, GAC is excellent at treating these problems.
Acetaldehde 4
Acetic Acid 3
Acetone 4
Alcohols 4
Alkalinity 1
Amines 3
Ammonia 1
Amyl Acetate 5
Amyl Alcohol 5
Antifreeze 4
Arsenic 1
Benzene 5
Bleach 5
Boron 1
Butyl Alcohol 5
Butyl Acetate 5
Calcium Hypochlorite 5
Carbon Dioxide 0
Chloral 5
Chloramine 4
Chloroform 5
Chlorine 5
Chlorobenzene 5
Chlorophenol 5
Chlorophyll 4
Citric Acid 4
Cresol 5
Defoliants 5
Detergents 3
Diesel Fuel 5
Dyes 5
Emulsions 2
Ethyl Acetate 5
Ethyl Acrylate 5
Ethyl Alcohol 4
Ethyl Amine 4
Ethyl Chloride 4
Etyl Ether 4
Fertilizers 1
Flourides 2
Formaldehyde 2
Gasoline 5
Glycols 5
Hardness 0
Heavy Metals 3
Herbicides 5
Hydrogen Bromide 2
Hydrogen Chloride 1
Hydrogen Flouride 1
Hydrogen Iodide 2
Hydrogen Peroxide 5
Hydrogen Selenide 3
Hydrogen Sulfide 3
Hypochlorous Acid 5
Inorganic Acids 1
Inorganic Chemicals 1
Insecticides 5
Iodine 5
Isopropyl Acetate 5
Isopropyl Alcohol 5
Ketones 5
Lactic Acid 4
Lead 3
Lime 0
Mercaptans 4
Metal Salts 1
Methyl Acetate 4
Methyl Alcohol 4
Methyl Bromide 5
Methyl Chloride 4
Methyl Ethyl Ketone 5
Naptha 5
Nitrates 0
Nitric Acid 3
Nitrobenzene 5
Nitroluene 5
Odors (general) 5
Oil - dissolved 5
Oil - Suspended 2
Organic Acids 4
Organic Esters 5
Organic Salts 4
Oxalic Acid 5
Oxygen 5
Ozone 4
PCB's 5
Pesticides 5
Phenol 5
Phosphates 0
Plastic Taste 5
Plating Wastes 3
Potassium Permanganate 4
Precipitated Iron 2
Precipitated Sulfur 2
Propioc Acid 4
Propionaldehyde 3
Propyl Acetate 4
Propyl Alcohol 4
Propyl Chloride 4
Radon 4
Rubber Hose Taste 5
Sea Water 1
Sediment 2
Soap 3
Sodium Hypochlorite 5
Soluble Iron 2
Solvents 4
Sulferic Acid 1
Sulphonated Oils 4
Suspended Matter 2
Tannins 4
Tar Emulsion 4
Tartaric Acid 4
Taste (DI Water) 4
Taste (From Organics) 4
THM's 5
Toluene 5
Toluidine 5
Trichlorethylene 5
Turpentine 5
Urine 2
Vinegar 3
Xanthophyll 4
Xylene 5

acrobat Click here for a printable version of the GAC Key.

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Designed to replace the discontinued NSA Model 100S undercounter water filter.

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