E-Clear MK7/CF1-1000, User Manual

Page: 65 / 88

62
11.3.3. KDF FILTERS
KDF process media, however, improve water treatment performance by
protecting, and in some cases replacing, existing filtration/purification
technologies. The exceptional filtration/purification performance and versatility
of KDF media make them an economical and easy-to-use water treatment
technology in both new systems and retrofit applications.
Improve your system’s economy while improving performance.
When used alone, KDF media can remove more than 95% of chlorine, iron,
heavy metal, and other contaminants from water.
When used in combination with granular activated carbon (GAC), KDF media
can significantly extend the life of the carbon.
Compared to other water treatment technologies, KDF process media offer reduced materials
requirements resulting in more compact and more economical systems.
Because KDF process media contains no chemical additives and are 100% recyclable, costly disposal
requirements are eliminated. What’s more, KDF process media are safer for the environment.
KDF process media are high-purity, copper-zinc formulations that reduce contaminants in water using
an oxidant/reduction (redox) reaction.
In other words, KDF media exchange electrons with contaminants, changing them into harmless
components. For example, chlorine is changed into soluble, soluble ferrous cations are changed into
insoluble ferric hydroxide, and hydrogen sulfide is changed into insoluble copper sulfide.
Other heavy metals such as mercury, copper and nickel are removed simply by bonding o the KDF
media. Microorganisms, however, are controlled two ways:
1. The exchange of electrons in the redox reaction creates an electrolytic field that most
microorganisms can’t survive.
2. KDF process media may catalyze the formation of radicals and peroxides in certain circumstance.
The radicals can interfere with microorganisms’ ability to function.
TYPICAL REDOX REACTIONS
reduction
Free chlorine Chloride
Harmful chlorine is removed by changing free chlorine into chloride ions