Register now or log in to join your professional community.
Although Reverse Osmosis seems like a complex system it is really a simple and straightforward water filtration process. And it's not a new process. High-pressure (pump driven) reverse osmosis systems have been used for years to desalinate* water – to convert brackish or seawater to drinking water. Having a better understanding of how a reverse osmosis system works will eliminate the mystery and confusion you may feel when you look at a reverse osmosis system -- with its many colored tubes and multitude of filters.
Reverse Osmosis is a process in which dissolved inorganic solids (such as salts) are removed from a solution (such as water). This is accomplished by household water pressure pushing the tap water through a semi permeable membrane. The membrane (which is about as thick as cellophane) allows only the water to pass through, not the impurities or contaminates. These impurities and contaminates are flushed down the drain.
is a type of water purification uses a semipermeable membrane to remove larger particles from drinking water
Reverse osmosis takes place when pressure applied to a concentrated solute solution causes the solvent to pass through a semipermeable membrane to the lower concentrated solution, leaving a higher concentration of solute on one side, and only solvent on the other. Salt water is desalinated to make fresh water using reverse osmosis. There the solvent it water and the solute is salt. A more complete description. http://en.wikipedia.org/wiki/Reverse_osm...
Reverse osmosis is one of the processes that makes desalination (or removing salt from seawater) possible. Beyond that, reverse osmosis is used for recycling, wastewater treatment, and can even produce energy.
Water issues have become an extremely pressing global threat. With climate change come unprecedented environmental impacts: torrential flooding in some areas, droughts in others, rising and falling sea levels. Add to that the threat of overpopulation -- and the demand and pollution a swelling population brings -- and water becomes one of the paramount environmental issues to watch for in the next generation.
Water treatment plants and systems are now adapting reverse osmosis to address some of these concerns. In Perth, Australia (notably dry and arid, yet surrounded by sea), nearly17 percent of the area's drinking water is desalinated sea water that comes from a reverse osmosis plant [source: The Economist]. Worldwide, there are now over13,000 desalination plants in the world, according to the International Desalination Association.
But while knowing that reverse osmosis can convert seawater to drinking water is useful, what we really need to understand is how the heck the process occurs. Assuming that you have a fairly good grasp on the definition of "reverse," we better start by taking a look at how osmosis works before we put the two together.
I agree with Ms. Elke answer.
All the answers are very descriptive and detailed which clarify the basic concepts of Reverse Osmosis. Thank you gentlemen for your time.
I agree with the experts answers. Thank you
it is a technology used to desalinate and or filter water or other liquid by passing under pressure the liquid through semi permable membrane.
The water is very much utilised for the basic need of humen being,today it is very very scarcity,the recycleling the waste is a must,to bank the water.reverse osmasis a way to clean the waste water for reuse purpose.