How Reverse Osmosis Purifies Drinking Water

If the health of your body and your loved ones is something you care about, then you probably spend time thinking about water purification. There are so many different ways to drink clean, fresh, good-tasting water that it may actually become confusing. As a matter of fact, supplying your family with safe drinking water may be as noncommittal as buying cases of bottled water, or it may be as involved as having your entire house renovated. One of the more popular water purification systems lately is the reverse osmosis system. This is considered the most thorough water purification system because of the multi-step process it uses.

The three step process in the system begins with a pre-filtration cleansing, then involves the reverse osmosis membrane, and finally utilizes a fresh-water holding tank. Most other filtration systems only involve a one-step process, which is what distinguishes this cycle from the rest.

During the pre-filtration cleansing, the largest of the unwanted particles are removed. This step is achieved with the help of a carbon or carbon-based filter. A carbon or carbon-based filter is mainly used to remove volatile organic compounds, or VOCs, from the water. The filter will also remove elements of chlorine or sediment. However, there are many other unwanted elements in water that a carbon filter will not remove, which is why the reverse osmosis process only uses the carbon filter as the first of three steps.

When it is time to involve the membrane, the rest of the impurities will be removed. The membrane only lets the tiniest molecules pass through. If a particle is any bigger than the hydrogen and oxygen elements that make up a molecule of water, then it will be left behind. This is because the membrane is so thoroughly exclusive that nothing will pass through without a little extra force. This force or pressure is where the reverse osmosis process gets its name. In the human body, the osmotic process uses force to pull water through cell membranes. In water purification, the process is called the same because the water is pushed instead of pulled through the membrane.

Finally, the purified water is transferred into a holding tank. Because the reverse osmosis process is so thorough, it takes a very long time. Since you would not want to wait ten minutes to pour a glass of water, the reverse osmosis system will work mostly all of the time purifying water and then storing it until the time when you want it. The result is fresh and clean water literally at your fingertips.