Tag Archives: ro filters

A reverse osmosis, aka ro water purification system seems to be a complex system, but in reality it is a very simple and a straight forward process of filtration. This RO process helps in transforming undrinkable seawater for drinking purposes. Reverse osmosis water filtration systems can remove many types of molecules and ions from solutions, and is used in both the production of potable water and industrial processes . The result is that the solute is retained on the pressurized side of the ro filter membrane and the pure solvent is allowed to pass to the other side. To be “selective”, this membrane shouldn’t allow large molecules or ions through the pores (holes), but should allow smaller components of the solution (such as the solvent) to pass freely.

PROCESS

Usually in the normal osmosis process, the solvent naturally moves from an area of low solute concentration (high water potential), through a special ro membrane to a zone of high solute concentration (low water potential). Applying an external pressure to reverse the natural flow of pure solvent, thus, is reverse osmosis. The process is similar to other membrane technology applications. However, key differences are found between reverse osmosis and filtration. The most dominant removal mechanism in membrane filtration is size exclusion or straining, so the process can theoretically achieve perfect exclusion of particles. Moreover, reverse osmosis involves a diffusive mechanism, so that the separation efficiency is dependent on pressure, water flux rate and solute concentration. Reverse osmosis systems are most commonly known for their use in drinking water purification from seawater, removing the salt and other effluent materials from the water molecules.

Speaking of great tasting water, it is almost impossible not to mention one of the best technologies so far in order to produce quality water for drinking purposes. The reverse osmosis filtration technique is used by many water treatment companies to make water safer than ever before. There is no doubt in the fact that many major water  companies are adopting reverse osmosis techniques. It is true that reverse osmosis converts seawater into drinking water, but it is important for us to be aware of how this process really works through the reverse osmosis water filtration.

The ro water filter is an innovative product that has to some extent, set up major benchmarks for others. So how does this treatment occur? The water is forced against a semi-permeable membrane with immense pressure where the ion exclusion then takes place. Due to this, the membrane forms an obstacle to exclude all the contaminants and allows only the other water molecules to pass through.The rejection rate here is very high. If you require this treated water from a reverse osmosis water filter, it is important to take into account that this filter will need raw water of approximately 3-4 gallons. The membrane consists of small pores so that the water can flow and restrict organic compounds, like minerals and salts, that have a bigger composition as compared to water. The semi-permeable membrane further restricts bacteria and other pathogens from passing through.