Salt Water Purification Systems
What Techniques are Used for Salt Water Purifiers Process?

Under the topic of water filters, salt water purification can have two very different meanings.

salt-water-purificationThis may cause some confusion. In this article, we look at both meanings.

The first meaning is what most people think when they hear the term salt water purifier. It is the process of taking salt or sea water and turning into fresh water that can be safely consumed by humans.

The second meaning, which may be unfamiliar to some, is associated with salt water filters or softeners that are used in both home and offices to soften and cleanse incoming water. In this second meaning, sodium is not removed from the water but is used as the filtering media within the device itself.

Under the first meaning-removing sodium so the water can be consumed-salt water filtration is needed. This is normally accomplished through a multi-step process, along with reverse osmosis. This is also known as desalination.

Why Salt Water Purification is Necessary?

Obviously, arid locales that are near the seashore will use this method to provide safe water for drinking and cooking. But there are also those who get their water from wells, which can also have high-sodium content that needs to be treated.


from salt water to drinking water in industrial plant- video demonstration

When it comes to removing sodium from water, there are only a few methods that will actually work. And, as mentioned above, these methods often involve multi-stages of processing which can make the devices expensive to buy and to operate.

Under the second meaning are salt water purifiers which can also be known as salt water filters. These units do not remove sodium from water. Instead, they use salt as the filtering media. Other popular types of water filters may use carbon or ceramic media, with salt water filtration units, salt is the media.

As a purifier salt water filters work on ionic exchange in order to soften hard water. These particular types of units are not as popular now as they once were for one simple reason: Corrosion.

Salt water purifiers are notorious for ruining piping and, especially, hot water heaters. Modern units have addressed these issues and those who need to soften their water with salt water purification units should purchase a newer unit in order to avoid corrosion problems.

It is also important that owners maintain their units and keep the system charged to its properly level. Many modern units now come with LED lights that alert owners when it is time to recharge the system. These alert systems usually go off a few days before the system is empty, giving owners plenty of time to add new media.

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Updated December 21, 2010