KDF vs. Chlorine

KDF-55 media is a unique, innovative, effective and environmentally responsible means of removing chlorine from feedwater in order to extend the life of granular activated carbon (GAC) media. High purity KDF-55 media will consistently remove 99% of the chlorine from industrial process and municipal water supplies. It electrochemically reduces chlorine to the water soluble chloride ion. KDF media has a number of advantages over dechlorination with activated carbon and chemicals such as sodium bisulfate and other SO2 bearing compounds. Used together with GAC, the KDF media effectively deals with the chlorine, extends the life of the activated carbon 15-18 times, and allows it to effectively address other organic pollutants.

The results of an independent, side-by-side comparison test between KDF media and GAC, showed that 1) KDF media removes more chlorine than GAC, with an efficiency rating of 95.3% compared to GAC's 81.3%, 2) KDF media offers higher throughput, operating efficiently at 6 TIMES that of GAC--30 gallons per square foot, compared to 5 gallons per square foot, 3) KDF media, volume for volume, is a more powerful chlorine removal agent than GAC, with 1/3 cubic foot of KDF outperforming a full cubic foot of GAC, 4) KDF media lasts longer. GAC efficiency fell below acceptable limits for chlorine removal after 168,000 gallons, whereas the KDF medium removed more than 90% of chlorine present in feedwater up to 1,719,300 gallons, and 5) KDF media provides better system economics, because the cost to treat 1,719,300 gallons was $1.26 per 10,000 gallons with KDF media versus $2.33 per 10,000 gallons-plus downtime costs for 9 bed changes-with GAC.