Pure, purer, ultrapure water
This process dates to the ancient Egyptians who, unbeknown to them, used osmosis when placing logs in fissures and holes in the rock to break open larger blocks of stone; water was poured on to the logs and the swelling wood eventually split the rock open. This principle of ‘osmosis’, which nature uses in many ways, is applied in technical processes as ‘reverse osmosis’.
Reverse osmosis is a membrane or separation method in which a solvent (water containing various substances) is forced through a synthetic membrane under pressure. The water molecules can pass through the membrane, but the various substances in the water (minerals, particles, pathogens, viruses, bacteria, etc.) cannot.
This process can therefore be used to produce ‘pure water’ for a range of industrial applications, for drinks, canned food, and baby food, etc.
Where the water to be used must be free from pathogens and contaminants. Strict hygiene regulations also apply to the purity of water used for industrial bottle cleaning or in dishwashers in the hospitality sector. Pure and ultrapure water is also a basic raw material and indispensable resource for medical and laboratory technology and the pharmaceutical and biotech industries.