The first one uses Powdered activated carbon (PAC) and the second one uses Granular activated carbon (GAC). Pac has an overall smaller particle size compared to GAC and therefore presents a larger surface to volume ration. As a result, the former is typically more effective at removing larger quantities of contaminants than the latter.
Silver or other secondary elements are also often used in both PAC and GAC filters to help prevent the spread of bacteria within the filter itself.
Both Powdered activated carbon and Granulated activated carbon can be used for whole house water filters, under sink water filters, countertop water filters, faucet water filters, water filtering pitchers, as well as water filtering bottles or straws.
Activated carbon filters are known to remove at least 81 known chemicals. They also effectively help against 30 other chemicals, and have a moderate effect on 22 others. china activated carbon manufacturer According to the EPA (the U.S. Environmental Protection Agency) activated carbon is the only filter recommended to remove all 32 identified organic contaminants including THMs. The same is true for all 14 listed pesticides and 12 herbicides. For a more detailed breakdown of all these chemicals, check the Drinking Water Treatability Database or the US National Library of Medicine.
Most notably, activated carbon is used to filter the chlorine and fluoride from municipal tap water. Most public tap water in North America and Europe is highly regulated and with excellent drinking qualities – it is intensively tested and certified for drinking. However, some countries – like the U.S. – still include chlorine and fluoride in the purification process. These chemicals used to filter the water for a lot of different natural borne bacteria and contamination and they do this quite well. They are also generally safe in the doses that they are used in, but tend to add an unpleasant smell or taste in some cases. Plus, some people are concerned that by drinking a lot of water or breathing in the evaporation in the shower, we are actually taking in much more fluoride and chlorine than we are supposed to be.
And activated carbon does a great job at removing both fluoride and chlorine, as well as the nasty taste and odor that sometimes accompanies them. gold activated carbon Carbon filtration is also the primary method used in increasing the pH levels of water such as through the use of advanced alkaline water pitchers.
Other chemicals that activated carbon is effective against include: benzene, radon, solvents trihalomethane compounds, volatile organic chemicals such as pesticides and herbicides and hundreds of other man-made chemicals that may come into contact with tap water as it proceeds through the system.
