Water filters remove impurities
“What is in your water might surprise you”, I recommended the use of water filters that remove most of the harmful contaminants present in tap water without the cost of installing a reverse osmosis system. The filtering agent is activated carbon, which eliminates contaminants from the water. The use of carbon to purify water has been practiced since the time of the Roman Empire. The process works in three steps. First, the particle is absorbed to the exterior surface. In the second step, the particle moves into the pore with the highest absorption energy. Finally, the particle is absorbed into the interior pores within the carbon. Most activated carbon is comprised of coal, which is heated to break down the size of the particles, permitting the removal of contaminants by absorbing the impurities to the surface. The coal used is not renewable since once the coal is consumed, just like when it is burned as a fossil fuel, it cannot be immediately regenerated.
Coconut shells as a carbon activated filter option
Coconut shells present a renewable option, since the shells are produced from a renewable resource. The shells, in many cases, would have been discarded after the juice was extracted. The trees produce fruit three times year and the trees are not injured when harvested, allowing a consistent renewable supply.
The shells are made of a high-grade form of carbon which consists of a high percentage of micro-pores for filtration. The percentage of micro-pores are higher than in carbon formed from coal, wood, or lignite. This property makes the substance ideal for filtering out organic contaminants. Not only do coconut shells eliminate lead, but they address tri-halo methanes (THM), pesticides, herbicides and volatile organic compounds (VOCs).
The renewable way to filter your water
If you are looking for a sustainable way to filter your water, make sure you consider filters made from coconut shells. Using these water filters is not only renewable, but is the best way to efficiently remove any unwanted chemicals in our drinking water.
- Bruce Gao