Reverse Osmosis Desalination Unit May Provide Alternative For Future
A reverse osmosis desalination unit employs a separation process to
reduce dissolved salt to a level that the water is drinkable. The desalination
process involves three streams: the saline feed water, the low saline product
water and the very saline rejected water. Separated during the process into the
two outputs has simplified a very costly measure to make salinated water a
comparatively low-cost drinking water source in addition to ion exchange
systems.
Because desalination is an important source for filtered drinking waters, the
cost comparison of reverse osmosis and ion exchange is not noticeably extreme.
The latter process is a few cents cheaper and that can translate to a few
hundred to a few thousand dollars difference annually, however the R.O. unit
also decreases the amount of water made useable.
Brackish water is a byproduct of desalination. Ion exchange does not produce a
by-product. Creating potable water sources at comparatively affordable costs for
domestic, agricultural and industrial purposes is the goal of both systems. In
India, the Ion Exchange water company is a large supplier of drinkable and
potable water. In Antigua, reverse osmosis units provide million of liters of
potable water from the ocean.
Ultimately, using an ion exchange unit and reverse osmosis desalination provides
world consumers with alternative water sources. Salt oceans cover more than 70 %
of the planet. Converting salt water to drinking water may very well offset the
decreasing amount of drinkable water remaining in fresh water sources. Western
countries can benefit from the same processes that can effectively bring safer
drinking water to third-world nations at comparatively affordable costs.
When comparing the costs of operating an ion exchange system vs. a
reverse
osmosis unit either desalination system can provide an area with potable water.
The long-term effects of ion exchange have not been examined, but so far the
water provided appears to be without incident.
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