Degermination methods Reverse osmosis

Reverse osmosis is comparable to an extreme, fine filtration and therefore is also known as hyperfiltration.
In reverse osmosis, water is pressed through a membrane, where only molecules with a certain size fit through, under compulsion.
Suspended substances, pigments, colloids, organic compounds, viruses and bacteria are abstracted from the water during the process.
The process is called reverse osmosis because pressure is required to press water through the membrane and therefore cleaning it from contamination.
Pressure up to 100 bar is used.
Through reverse osmosis it is possible to remove 95% - 99% of dissolved solid materials and 99% of bacteria. Therefore safe and clean water is produced.
Currently reverse-osmosis-equipments cover various ranges of performance.
Equipments with a reverse-osmosis-module of a few liters per hour for domestic- or laboratory-use to seawater-desalination plants with a capacity of a few hundred cubic meters per hour are in service.
- vital minerals are detracted from the filtered water
- membranes are strong culture mediums for microorganisms
- for producing one liter of pure water normally 3 – 25 liters of water are