Reverse osmosis is used for a wide variety of water purification purposes, the most common application for RO being drinking water. In fact, RO is the fastest-growing form of in-home water treatment in the U.S.
A recent study revealed that 70 percent of the people in the Los Angeles area drink only filtered or bottled water. That’s a lot of money spent for clean water.
With this growing demand for higher quality drinking water, it’s no surprise homeowners and businesses are buying and installing the same state-of-the-art technology used to process Coca Cola’s Dasani and Pepsi’s Aquafina bottled water brands. The filtering process used by these bottling giants is nothing more than simple RO filtration.
The key function of RO, or hyperfiltration, takes place within a tight, semi-permeable membrane that allows only pure water to pass through it. Contaminants such as arsenic, copper, iron, lead, chromium, fluoride, radium, cyanide, nitrates, bacteria, the gas additive MTBE, and pesticides, PCB and benzene can’t pass through the membrane because their molecules are, in simple terms, bigger than water molecules, so they can’t pass through the holes in the semi-permeable membrane. As a result, RO vastly improves water purity, color and taste.
Unlike charcoal or carbon filters that can become less efficient with each glass of water drawn through them, and which remove only some contaminants, odors, and tastes, an RO system’s membrane is self-cleaning.
As the source water flows through the RO module, it’s divided into two streams. One stream is the high quality drinking water that has passed through the membrane. The second stream is the rinsed water that carries the rejected contaminants down the drain.
There are very few water sources in the United States that challenge the capabilities of an RO system. To operate at a peak performance, the incoming tap water supply should meet the following criteria:
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by Derek Sajdak
Save $55 on Always Fresh Drinking Water System
Tags: bottled water, reverse osmosis, water purification
This entry was posted on Monday, June 28th, 2010 at 1:16 pm under Industry News. You can leave a response, or trackback from your own site.