Carbon Filter Cartridge Can Remove
- Bad taste
- Heavy metals
What is a Carbon Block Filter?
The carbon block filter compresses loose carbon blocks together to form a filter.
In the carbon block filter, one pound of compressed activated carbon (the amount in a standard 10-inch filter cartridge) has a surface area equivalent to 160 acres of farm, making it one of the most absorbent materials known to man.
Due to the compression characteristics of carbon block filters, the water flow rate is lower than that of GAC filters made of loose media. And the flow rate is affected by the micron level of the filter. The rated micron level of the carbon block filter depends on the degree of carbon compression. The smaller the micron level, the finer the filtration and the lower the flow rate.
There are a variety of raw materials used to make carbon block filters. Some of the most common sources of carbon are bituminous coal, wood, and nutshell. Carbon filters remove contaminants through adsorption. Adsorption means that contaminants are attracted to the surface of the activated carbon and held to it, much the same way a magnet attracts and holds iron filings.
Carbon filters also act as a catalyst to change the chemical composition of some contaminants. Activated carbon is ideal for removing chlorine, organic chemicals such as pesticides, THMs like chloroform, and many VOCs that are components of gasoline, solvents and industrial cleaners.