Current status of drinking water supply for the people is being severely affected not only in developing countries but also on a global scale. World Health Organization (WHO) has been warning and supporting many measures for each country where the water supply is severely threatened by the process of industrialization.
Thus, the depletion of fresh water is inevitable. This complex issue needs to be addressed by the whole community. Based on the modern science and technology, the purification technology using RO membrane was born. Let’s refer reverse osmosis reviews below to learn more about this excellent product.
What is a Reverse Osmosis system? (RO system)
RO membrane stands for the word REVERSE OSMOSIS. So far, reverse osmosis is still considered the most advanced technology in water purification, which allows only “the water” to pass through the membranes of its system. Therefore, it is also called “Hyberfiltration.”
RO technology achieves the popular applications in the water purification system from the home water filtration system to water purification lines in the industry with a large capacity.
What is the phenomenon of osmosis?
The Osmosis is a natural phenomenon. The fact that the water will always move from an area of lower concentrations to an area that is higher levels. The process takes place until equilibrium is reached. In other words, it means the concentration of mineral salts of the two areas is equal. Therefore, it can be said that reverse osmosis is a reverse process of the osmosis.
What is RO membrane?
The reverse osmosis membrane is made from polyamides. Two main materials that make up a significant amount of ingredients of membranes used in the business including Cellulose Acetate and Aromatic Polyamide.
Cellulose acetate membranes
Each material will have the various advantages and disadvantages. Cellulose Acetate can allow the water line to flow through with the higher capacity and its pores are smaller than Aromatic Polyamide. Cellulose Acetate also eliminates many microorganisms and at the same time retains some residual of chlorine in the water so that it can be able to prevent the proliferation of microorganisms.
Polyamide membranes can be used at high temperatures (35 °C) while Cellulose acetate membranes are only used at 30 °C. Although it cannot tolerate the chlorinated water, it cannot be attacked by microorganisms. Meanwhile, some of the microorganisms that can appear on the surface of the water destroy the Cellulose Acetate membranes. Finally, the polyamides can be used in condition with a pH (4-11), which is wider than Cellulose Acetate (4 -7.5) in scope.
The advantages of reverse osmosis systems for industry
The reverse osmosis system converges many advantages that make it preferred in the market including:
– Excellent technical standards
– Greater efficiency to achieve low cost
– Using new technology
– Easy to transport and install
– The reverse osmosis membrane has good performance in harsh environments
– Producing less noise
– Short startup time
– Optimal water quality
A Few Disadvantages
1. The water is demineralized
Because most mineral particles are larger than water molecules in size, they all are removed thanks to the semi-permeable membrane of the reverse osmosis system.
Removing the natural minerals also leaves the water tasteless. That is the reason why many people have to add liquid minerals to their water after treated by the RO system to improve the taste.
2. The water is acidic
Because RO system takes out the minerals from the water, which makes the water acidic. However, the acidic water source using for drinking will not help maintain a healthy pH balance in the blood of your body.
Thus, many RO products in the market recently are equipped with the remineralization element to overcome the above disadvantage.
3. Some critical contaminants are not eliminated.
One of the weaknesses of RO product is that the reverse osmosis membrane cannot remove completely the volatile organic chemical (VOCs), chlorine and chloramines, pharmaceuticals, as well as other synthetic chemicals.
Therefore, some RO systems now are designed with multi-stage filtration media like Activated Carbon membrane to remove chlorine, even certain pesticides.
Reverse osmosis systems are widely applied in lots of fields such as:
– Industrial production
– Islands and Marina
– Beverage and Pharmaceutical products
– Desert and remote areas
– Producing bottled water
– Electronic Industry
– Chemical industry
– Electrical energy
Please searching on the Internet for more information.