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What is reverse osmosis?
 

Reverse osmosis, commonly referred to as RO, is a filtering technique that allows you to purify water and make it healthier. It is commonly used for improving water for drinking and cooking. This well-known water purification technology uses a semipermeable membrane to remove molecules, ions and larger particles from water. The result is an oligomineral water free of calcium and phosphates, of heavy metals, pesticides and other substances released from the pipes. With the reverse osmosis bacteria, viruses and organic substances are retained too.
 

 

How does reverse osmosis work?

Osmosis is a naturally occurring phenomenon and one of the most important processes in nature. In the normal osmosis process, a weaker saline solution will tend to migrate to a strong saline solution. The driving force for the movement of the solvent is the reduction in the free energy of the system when the difference in solvent concentration on either side of a membrane is reduced, generating osmotic pressure due to the solvent moving into the more concentrated solution. Applying an external pressure to reverse the natural flow of pure solvent, thus, is reverse osmosis.
 

Osmosis is a widespread phenomenon and it is at the base of those mechanisms that regulate cell metabolism. In fact, the cells have different types of membranes: the outer one that contains the whole cell, the nuclear one that contains the genetic heritage, the membrane that covers the mitochondria, etc. Each membrane has some peculiar characteristics that allow it to select the elements that can cross it, thus regulating the internal activity of the cell. One type of membrane is the semi-permeable membrane, that allows some atoms or molecules to pass but not others. This quality generates the phenomenon of osmosis.

Let's imagine two liquids with different salt concentrations separated by a semipermeable membrane (see image on the right). The less charged water passes through the membrane. The water of the less concentrated liquid will tend to cross the membrane and raise the level of the most concentrated liquid. This process will then be countered by the dilution of the liquid and the pressure difference due to water transfer.
The phenomenon of osmosis arises from the propensity of a pure solvent to move through a semipermeable membrane and into its solution containing a solute to which the membrane is impermeable.

OSMOSIS: Water flows from low concentration of salts to higher concentration.
EQUILIBRIUM: osmotic pressure is the pressure required to stop water flow and reach equilibrium.
REVERSE OSMOSIS: By applying pressure greater than Osmotic pressure, flow of water is reversed; water flows from higher concentration solution to lower.

The osmotic pressure is the measure of the tendency of a solution to take in pure solvent (which belongs to the solution under discussion) by osmosis. Potential osmotic pressure is the maximum osmotic pressure that could develop in a solution, if it were separated from its pure solvent by a selectively permeable membrane. 


Prefessional osmosis water system 


Percentages of retention of polluting elements through a reverse osmosis system
Element Percentage Element Percentage
Ammonium 80-90% Cadmium 93-97%
Silica 80-90% Calcium 93-98%
Nitrate 85-95% Mercury 94-97%
Bromide 90-95% Phosphate 95-98%
Chloride 92-95% Lead 95-98%
Fluoride 92-95% Iron 96-98%
Silicate minerals 92-95% Nickel 96-98%
Sodium 92-98% Bacteria 99,9%
 



Prefessional osmosis water system 
 

Risult

The water obtained by reverse osmosis is healthy and light, it is comparable to an excellent oligo-mineral water.
This water is also safe from a bacteriological point of view.
The osmotic membrane manages to retain particles with dimensions exceeding 0.005 microns (one micron corresponds to one thousandth of a millimeter).

99% of bacteria and 98% of viruses are eliminated.

 

 

 

 

What is reverse osmosis for?
 

The human body is made up of 75% water. So, it is really important to drink lots of water. Drinking water helps maintain the balance of body fluids.The functions of these bodily fluids include digestion, transportation of nutrients,  circulation and maintenance of body temperature etc.
Dieticians, nephrologists, cardiologists, sports doctors agree that, for proper hydration, everyone should drink 3% of their water weight every day.

Proper hydration is fundamental for all the functions of our body: it counteracts ailments such as arthritis, migraines, high cholesterol, hypertension. Good hydration also helps keep the brain shiny, the blood flowing and the body active. It is important for a healthy drinking good water. But is the water you're drinking safe? What can you do if your tap water suddenly became contaminated?

You often tend to choose bottled water as a solution to pollution.

But this is not a good idea for various reasons:

  • Often the quality of the mineral water that arrives at our table is strongly degraded due to the method of transport and storage.

  • It is inconvenient to buy bottles and transport them home. Not to mentioning the encumbrance.

  • The price on the market is often excessive compared to the value of the product.
    Producing a liter of water costs a few cents while it is sold very expensive, up to 1000 times the cost of tap water.

  • Mineral water is usually used only for drinking, while tap water is sufficient for all other food uses: cooking, making coffee, tea, etc.

  • The market of bottle water is based on a system with a strong environmental impact with a large production of PET and PVC, not to mention the pollution created for the transport of a voluminous and heavy goods such as water.

A valid alternative that is widely used abroad in countries such as the United States is treatment at the point of use.
This is now possible in our homes thanks to reverse osmosis purifiers.

Reverse osmosis can remove many types of dissolved and suspended species from water, also bacteria.
With the under-sink purifier you will start to save money from the first day of use. 
On pippohydro.com for sale depuration devices. The reverse osmosis filtration is the perfect solution if you’re looking to improve the taste of your water.
 

 

 

 

 

 

 

 

 

 

 


Why should I buy a reverse osmosis purifier?
Prefessional osmosis water system 
Water hardness

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