Glossary of Water Treatment Terms & Definitions - K

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KDF

A water treatment media employing copper and zinc alloy particulates which have a redox potential. KDF does not support the growth of bacteria and lasts up to twenty times longer than activated carbon. KDF 55 granules are effective in removing chlorine and other water-soluble heavy metals such as lead. KDF 85 is the choice for removing iron and hydrogen sulfide.

Kilograin

A unit of weight; one thousand grains, 17100 ppm, or 0.1429 pounds.

Kinetics

The study of the relationships between temperature, motion, and the velocity of very small particles. It is used to describe the rate of ion exchange reactions.