What is removed by the activated carbon water filter?
Activated carbon is wonderful in removing pollutants, odors and bad taste from tap water 。 But how does it work? Do you need one?
Activated carbon filter They are small, granular or massive pieces of carbon that are treated to be very porous. The surface area of activated carbon is only 3600-600 square yards. Four grams is equivalent to a football field. This is a large surface area that allows the activated carbon filter to absorb (essentially remove) contaminants and other substances very efficiently.
In addition to the surface area, activated carbon filters have different capabilities in terms of the size of pollutants they remove. Activated carbon filters range from about 50 microns to 0.5 microns. Smaller holes are more effective, but smaller holes can also reduce water flow.
As the water flows through the activated carbon filter, chemicals adhere to the carbon, resulting in more pure water. The effect depends on the flow rate and temperature of the water. Therefore, most smaller activated carbon filters should use low pressure and cold water.
Activated carbon is usually made from coconut shell, wood or coal and sold as granular activated carbon or carbon blocks.
What can be removed and reduced by activated carbon filter?
Activated carbon It's very effective in removing at least 81 chemicals, 30 other chemicals and 22 chemicals. It's actually more, but the chemicals have been thoroughly tested.
There are also some pollutants, activated carbon will not be removed, we will introduce below. For a complete list, see the links in the links below.
According to EPA, activated carbon is the recommended filter for removing all 32 identified organic pollutants, including THM (by-product of chlorine). The same is true for all 14 listed pesticides and 12 herbicides. This is also known as glyphosate and other pesticides
Understanding water pollutants can be difficult. Therefore, it is easier to pay attention to specific pollutants in tap water.
Most public tap water in Europe and North America is highly regulated, tested and certified for drinking. However, in order to make it safe, adding chlorine may make its taste and smell worse. Activated carbon filters are excellent at removing chlorine and associated bad smells and odors. High quality activated carbon filter can be removed 95% or more chlorine 。
Chlorine by products
A common problem with tap water is chlorine by-products (VOC), such as THM, which has been identified as a potential cancer. Removal of these activated carbons is more effective than any other filtration technology.
Activated carbon is an excellent water filtration technology, which solves many problems, but not all of them. Therefore, it is important to understand the functions and limitations.
If there is uncertainty about the pollutants to be filtered, please feel free to Contact us 。