easymetal

EASYRO® Membrane technology

 

The reverse osmosis membrane technology (reverse osmos = RO) is used for the separation of salts and ions from predominantly aqueous solutions.

 

The advantage of this technology: 

• No addition of chemicals

• Low energy consumption

• Easy to use

 

A semi-permeable membrane is used in reverse osmosis for the separation of the individual components of an aqueous medium (e.g. water).

This membrane has the property that the aqueous component (pure water = permeate) can pass through the membrane, while other components such as suspended solids, salts, etc. (= concentrate) are for the most part held back and disposed of through the wastewater drain.

The membrane thus acts similar to a filter which only allows pure water to pass through and holds back larger molecules than the pure water molecule; however this membrane, in contrast to the filter (e.g. microfiltration, ultrafiltration) has no real pores.

The separation of the components is done through a diffusion membrane with nanofiltration as well as reverse osmosis.

The pressure necessary to push the medium through a diffusion membrane is quite higher than with microfiltration or ultrafiltration. This does reduce productivity but the filtration efficiency greatly increased.
The retention of calcium (hardness) is > 99%. The filtration efficiency varies with the quality of the membrane and the quality of the aqueous medium (feed water).

A membrane consists of semipermeable membrane layers.
To achieve a surface that is as large as possible with the smallest volume, the individual layers of the membrane are closely wrapped. There are numerous types and designs. In the EASYRO® reverse osmosis system, we use tube-shaped low pressure high performance membranes. The membrane technology used here is state of the art. Only industrial components are used, which cannot be compared with conventional
membranes in any way.

 

Regular backwashing and maintenance of membranes 

 

The permanent diffusion work of a membrane makes deposits on the individual membrane layers unavoidable. A pre-filtration before the reverse osmosis system removes coarser pollution particles such as suspended solids and colloids but does not prevent a regular cleaning rinsing of the membranes.

A membrane absorbs water-insoluble salts during when doing their job. In case of inorganic salts such as calcium carbonate and barium sulfate, precipitation (scaling) may easily occur due to supersaturation. This means the membrane may become blocked. The diffusion properties of the membrane layers continues to diminish and the service life of the membrane is reduced enormously.
The yield of permeate can no longer be guaranteed and the pressure in the system rises.
In the worst case, the pressure exceeds the permissible value and damages the system.

Regular maintenance of the water treatment system is thus very important. During a cleaning flush, any deposits on the membrane layers are removed and discharged with the wastewater. The membranes then are again free of residues and fully operational.

We gladly undertake the regular maintenance of your EASYRO® system for you. Conclude a service and maintenance contract with us and we will automatically remind you of overdue maintenance and make an appointment for you.