Product Description
The most practical, cheapest and basic type of water filtration is a carbon filter to clean water. Carbon filters have a multitude of applications including filtering drinking water and keeping a fish aquarium's water from getting murky. While it can remove some particles that cloud the water, reduce nasty chlorine residue and can even help to reduce odors, thus improving the general taste and clarity of water, it does have its limitations when it comes to microbe and bacterial removal.
Working Principle
With a carbon filter process, water passes through activated carbon which is porous, trapping certain particles that are attracted to the porous material. The size of particles attracted depends on the size of the pores or micron rating. However, not all particles are attracted to the active carbon filter.
And at some point it loses its ability to attract particulates and must be changed in order to be effective.
In the process of filtering water, activated carbon is often used to remove contaminants and impurities. Carbon is probably the most absorbent material known to man, and it is uniquely efficient because of thousands of tiny pores that can absorb. For example, a pound of activated carbon provides 125 acres of filtering surface area. The carbon is positively charged to attract negatively charged impurities such as chlorine, chemicals and volatile organic compounds.
Features
Adsorption from 12 in. to 12 ft OD
Single or multiple carbon adsorption systems
In series or in parallel operation
Automatic or manual valves
ASME code or non-code vessels
Carbon steel or stainless steel construction
Activated Carbon and Carbon Block Water Filters
Carbon Water Filters have been used for centuries to filter impurities from drinking water. Carbon is a very powerful absorbant; one pound (half a kilogram) of carbon contains a surface area of 125 acres (0.5 square kilometers). The material has millions tiny pores, usually invisible to eye, and can absorb thousands of water contaminants. Several forms are commonly used in water filtration: Granular Activated Carbon ( GAC ), and Carbon Block. Activated Carbon is a material that has a positive charge, which helps attracting even more impurities. Generally, Carbon Block Filters ( or "charcoal water filters" ) have higher contaminant removal capability than GAC filters, and they usually have a higher cost.
Activated Carbon and "Block" Filters a usually rated by size of the particles it can remove. Typical ratings are from 50 micron (least effective) to 0.5 micron (most effective). We generally use 5 micron carbon blocks in our systems, because it gives us very effective absorbtion capabilities in combination with acceptable water flow rates. However, some applications exist where granular carbon is a better fit, such as in removing chloramines (combined chlorine).
Although various types of carbon exist, three are generally used for drinking water filtration: bituminous, wood, and coconut shell. Coconut shell variety is most effective for most water filtration.
Technical Parameter
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