Water Filters and Their Comparison
Activated Carbon Filters Media
[pic]"Activated" carbon filter media is produced by super-heating dried coconut husks in a low oxygen environment, using a process called pyrolysis. The resulting "biochar" husk, is a purified form of carbon, containinglarge amounts of cellular sized surface area, negatively charged to attract positively charged toxins. Toxins in the water become attached to the husk's carbon surfaces.Over time, the attractive charge of carbon surfaces are neutralized, making it time to change the filter.
There are many types of carbon water filters that can be easy to install and are low in cost. The use of carbon filter media is wide spread, both in public and private water systems.
Carbon Filters - Two Basic Types:
[pic]
9.75 inch standard carbon filter
1. Carbon Block - a super heatedcarbon extrusion that forms carbon into a solid, yet porous block. Solid block carbon provides the properties of a sediment filter, while also increasing surface area. However, flow rate can be significantly slower than granulated activated charcoal.
2. Granulated Activated Carbon (GAC) - comes in various granule sizes depending on the application. Finer granular sizes have more surface area but can also produce a channeling effect. GAC is the most widely used form of carbon filter media.
Carbon, water and trapped particles, left together in a sealed, low oxygen, environment, can allow anaerobic microbes to reproduce, especially when the filter is left unused for a couple of weeks.
To eliminate this bacterial problem, silver is sometimes added or "impregnated" to provide an antibacterial effect. Another approach is to eliminating water-borne bacteria is the combination KDF and carbon media within the same filter housing. Some sediment filter media can remove virus sized particles down to .01 micron or larger.
All carbon filters will have reduced efficiency over time. Regular filter replacement is essential to good filter performance. If the taste of the
[pic]"Activated" carbon filter media is produced by super-heating dried coconut husks in a low oxygen environment, using a process called pyrolysis. The resulting "biochar" husk, is a purified form of carbon, containinglarge amounts of cellular sized surface area, negatively charged to attract positively charged toxins. Toxins in the water become attached to the husk's carbon surfaces.Over time, the attractive charge of carbon surfaces are neutralized, making it time to change the filter.
There are many types of carbon water filters that can be easy to install and are low in cost. The use of carbon filter media is wide spread, both in public and private water systems.
Carbon Filters - Two Basic Types:
[pic]
9.75 inch standard carbon filter
1. Carbon Block - a super heatedcarbon extrusion that forms carbon into a solid, yet porous block. Solid block carbon provides the properties of a sediment filter, while also increasing surface area. However, flow rate can be significantly slower than granulated activated charcoal.
2. Granulated Activated Carbon (GAC) - comes in various granule sizes depending on the application. Finer granular sizes have more surface area but can also produce a channeling effect. GAC is the most widely used form of carbon filter media.
Carbon, water and trapped particles, left together in a sealed, low oxygen, environment, can allow anaerobic microbes to reproduce, especially when the filter is left unused for a couple of weeks.
To eliminate this bacterial problem, silver is sometimes added or "impregnated" to provide an antibacterial effect. Another approach is to eliminating water-borne bacteria is the combination KDF and carbon media within the same filter housing. Some sediment filter media can remove virus sized particles down to .01 micron or larger.
All carbon filters will have reduced efficiency over time. Regular filter replacement is essential to good filter performance. If the taste of the