Water is life. It is an essential part of our day-to-day living. It is not only important of our health, but it is also important for our comfort. Can you imagine yourself living in a day without water to drink or to wash your face with? But besides having enough water to get us through the day, another concern that arises is how safe the water we are using is, especially for drinking.
There are indeed so many things that bother us. How we can suspend aging and look younger than our age, global warming, global crisis, getting a nice home these are just some of those. It is a good thing that having safe water to use has been taken into account, though. Different water purification systems are being employed to produce high quality and pure water. Moreover, the most common forms of purified water are distilled and deionized water.
So what are the water purification systems that we have at present?
One is carbon filtering. Carbon is a powerful absorbent, and its ability to absorb is enhanced by adding a slightly positive electrical charge. The product is then called activated carbon, which is being used in many standard home water filters. Granular activated carbon or GAC and powdered block carbon are often used by activated carbon filters. They help reduce or remove contaminants found in tap water such as pesticides and herbicides, volatile organic chemicals (VOCs), chlorine, and radon.
Another method used is reverse osmosis, which is also known as hyperfiltration or ultrafiltration. This technique works by applying mechanical pressure to force pure water through a semi-permeable membrane while the contaminants are trapped in the tiny pores of the membrane. This technique filters water contaminants such as bacteria, chlorine and other treatment related products, dyes, heavy metals, and salts and sugars.
Deionization is also one technique used to purify water. Through this process, ions (charged atoms or group of atoms) are removed from raw water. These include cations from sodium, calcium, iron, copper and anions such as chloride and bromide. It is done by using specially-manufactured ion exchange resins, which bind to and filter out the mineral salts from water.
Distillation, on the other hand, is the process of boiling water and then condensing the steam into a clean container. This leaves most solid contaminants behind. The production of drinking distilled water is especially important to dry seaside areas where there is no sufficient supply of freshwater.
Also included in the list is UV water purification. It uses ultraviolet or UV light, which comes from a high intensity lamp, to treat water and make microorganisms harmless; UV light damages the structure of the organisms present in the water, making them sterile. Then there is water conditioning that reduces the effects of hard water. Water that has high concentrations of hardness salts, which are deposited in water systems subject to heating, can be treated with sodium carbonate or soda ash that precipitates out the excess salts.
Moreover, purified water is not only for individual consumption. It is also used in many other ways. Demineralized water, for instance, is used in laboratory testing and in the production of high purity chemical solutions.
There is indeed a great demand for pure water. Thanks to the water purification methods that have been developed, we have access to water that is free of contaminants. We give so much importance to cleanliness, and it involves the water that we consume, either for drinking, washing, and many other activities where clean water is required. Of course, clean does only mean unused water that comes out from our faucets. It also means free from contaminants that cannot be seen by our naked eyes.