Water purification and water filtration, which are often synonymously used, refer to very different things entirely.
Water purification refers to how contaminants (organic, inorganic, chemical, and biological) are removed from the water. It can clear almost all of the contaminants in contaminated water. There are different methods used in this process. They include boiling, reverse Osmosis, water Chlorination, iodine Addition, solar Purification, clay Vessel Filtration.
On the other hand, water filtration refers to the process of eliminating or reducing the number of particles (either microscopic or macroscopic) from water. It can only be carried out on clean water, as it can only improve water quality by 20%. This process can include activated Carbon, deionization, ion exchange, reverse osmosis, carbon block, granulated Carbon, water softeners. Various types include Pitchers, under-Sink, on-counter, faucet-mounted.
The most common type of water filter used in homes is faucet-mounted or direct-to-tap filters. Faucet-mounted filters are attached directly to the faucet, filtering the water dispensed from the tap, making it healthy for cooking and drinking. Faucet-mounted water is usually small and easy to install, and they make use of a cartridge filter. The cartridge comprises various components that work together to filter out the particles in the water.
Although the system being employed is the same, filters come with various specifications based on the brand and type of faucet they are intended for.
The various components of the cartridge filter are:
– Sediment Removal: this is usually a non-woven screen wrapped around the cartridge. The screen stops the movement of large and small particles like rust, dirt, debris, and sand through the tap.
– Activated Carbon Block: comprises a porous surface with nooks and crannies, which traps particles through adsorption. It is advisable to clean the porous surface of the activated Carbon from time to time to maximize the filter’s efficiency. Some filters have Carbon impregnated with silver or other chemical substances to kill any fungi or bacteria.
– Chemical Removal: the activated carbon filters remove contaminants like chlorine, but not magnesium, calcium, lead, mercury, or nitrites and nitrates. The amount of time the water stays in contact with the cartridge filter determines the number of particles it gets rid of, which is why most faucet-mounted filters produce water at a slower rate.
Faucet-mounted water filters are very effective at blocking and removing different contaminants from water sources. Due to new inventions, some filters can remove over 70 different particles and contaminants. These filters are cheaper and environmentally friendly because they do not produce wastewater. Impressive right? You can trust that that simple and easy to install water filter will produce clean water suitable for drinking.
However, their maintenance is also important to their usefulness. Cleaning them after a few weeks will help ensure they remain neat and do not add to the level of contaminants in your water.