Activated carbon which has a slight electro-positive charge added to it, making it even more attractive to chemicals and impurities. As the water passes over the positively charged carbon surface, the negative ions of the of the contaminants are drawn to the surface of the carbon GRANULAR. Activated carbon filters used for home water treatment typically contain either granular activated carbon or powdered block carbon. Although both are effective, carbon block filters generally have a higher contaminant removal ratio.The two most important factors affecting the efficiency of activated carbon filtration are the amount of carbon in the unit and the amount of time the contaminant spends in contact with it. The more carbon the better. Similarly, the lower the flow rate of the water, the more time contaminants will be in contact with the carbon, and the more absorption that will take place. Particle size also affects removal rates. The most common carbon types used in water filtration are bituminous, wood, and coconut shell carbons.
While coconut shell carbon typically costs 20% more than the others, it is generally regarded as the most effective of the three. All of our activated carbon filters use coconut shell carbon. There are two principal mechanisms by which activated carbon removes contaminants from water; absorption, and catalytic reduction, a process involving the attraction of negatively-charged contaminants ions to the positively-charged activated carbon. Organic compounds are removed by absorption and residual disinfectants such as chlorine and chloramines are removed by catalytic reduction.Activated carbon filtration is very common in a number of home water treatment systems. It can be used as a stand alone filter to reduce or eliminate bad tastes and odors, chlorine, and many organic contaminants in municipal (pre-treated or chlorinated) water supplies to produce a significantly improved drinking water.
It is also very commonly used as a pre-treatment as part of a reverse osmosis system to reduce many organic contaminants, chlorine, and other items that could foul the reverse osmosis membrane. 0.5 block filters are commonly used to remove systs such as giardia and crytosporidium.
Activated carbon filters remove/reduce many volatile organic chemicals (VOC), pesticides and herbicides, as well as chlorine, benzene, trihalomethane (THM) compounds, radon, solvents and hundreds of other man-made chemicals found in tap water. Turn Your Water Softener into a Purifier! Mediaguard is mounted between the control valve and the tank, exhibiting consistently superior KDF Process Media as pretreatment media to improve the performance and economy of your water softener system. Mediaguard with KDF 55 medium is truly an economic pretreatment unit which is able to turn your water softener into a high performance water purification system by reducing or removing chlorine, heavy metals, and inhibits bacteria growth from water without adding chemicals. KDF 55 ELIMINATED THE NEED FOR A CARBON FILTER.KDF 55 and KDF 85 Process Media can remove up to 99% of water-soluble lead, mercury, nickel, chromium, and other dissolved metals, Chlorine and Hydrogen Sulfide. Wherever KDF Media are used, they can eliminate the need for costly, and sometimes harmful, chemical treatments. Founded in 1984, KDF Fluid Treatment, Inc. Is a technological leader in the fluid treatment industry.
KDF process media are high-purity copper-zinc formulations used in pretreatment, primary treatment, and wastewater applications. KDF media supplement or replace existing technologies to dramatically extend system life, reduce heavy metals, microorganisms, scale, lower total cost, and decrease maintenance. Patented KDF process media are 100 percent recyclable and contain no chemical additives.
Hospitals, restaurants, municipal water treatment facilities, and homes rely on KDF process media to safely reduce or remove chlorine, iron, hydrogen sulfide, heavy metals, and bacteria from their water. However, we are not responsible for transit time and delays. Under no circumstances are opened or used products accepted for return. Oceanic Water Systems REPRESENTS THE NEWEST, MOST EFFICIENT SYSTEMS IN THE INDUSTRY OUR LARGE PURCHASING POWER HAS MADE US ONE OF THE MOST COMPETITIVE ON THE MARKET. The item "Whole House City Water Filtration System 2 cu ft.KDF 55 + GAC Backwash 12x52" is in sale since Saturday, February 22, 2014. This item is in the category "Home & Garden\Home Improvement\Plumbing & Fixtures\Pumps & Water Filtration Systems\Water Filtration Systems". The seller is "oceanicwatersystems7" and is located in North Hollywood, California. This item can be shipped to United States, United Kingdom, China, Mexico, Germany, Japan, Brazil, France, Australia, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Austria, Bahamas, Israel, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Bangladesh, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Luxembourg, Monaco, Macao, Martinique, Nicaragua, Peru, Pakistan, Paraguay, Viet nam, Uruguay, Canada, Sri lanka.