In light of the growing challenges in drinking water treatment, the reverse osmosis filter process has proven to be very successful. It can even be used to remove pollutants such as nitrate, heavy metals, hormones and drug residues from the water. The process uses a principle that also occurs in nature: osmosis. If water is filtered by reverse osmosis, ultra-pure water that is obtained that is free of pollutants, germs, odor and taste.
Artificial semi-permeable membranes are manufactured for the treatment of drinking water. This reverse osmosis filter separates the contaminated water from already purified water in which no foreign substances are present. For the filtration of the foreign substances, the contaminated water is pressurized with a pressure of 4 to 10 bar and only the water molecules pass through the membrane, but not the foreign substances.
REMOVES HORMONES, DRUG RESIDUES AND PESTICIDES
Reverse osmosis is a type of membrane filtration. Only the purest H2O can pass through the membrane, while substances dissolved in the water and finest particles are retained. Larger foreign substances to be filtered can, for example, already be filtered from the raw water by sediment filtration. For finer substances such as nitrate, drug residues, pesticides or hormones, the reverse osmosis membrane is used.
How an osmosis works can be impressively observed on cherries in the rain: The fruit gets wet - and starts to burst. This phenomenon occurs because in nature there is always a concentration balance between two liquids. As the rainwater drips onto the cherries, the water molecules diffuse through the skin of the cherry into its interior, where sugar is dissolved in water. The water in the cherry and the rainwater now try to establish a chemical balance between water and sugar molecules on both sides of the cherry. However, only the much smaller water molecules pass through the skin of the cherry, which acts as a natural membrane. The larger sugar molecules, however, cannot escape. As more and more water molecules penetrate the fruiting body, the pressure inside the cherry increases until its skin finally cracks.MINERALS FOR PURE WATER
Although reverse osmosis has the advantage of reliably removing unwanted substances, it also removes all the minerals that are important for human beings from the water. Reverse osmosis filters that have been available on the market up to now work according to this principle.
LUQEL has taken the process further and adds important and flavourful minerals to the water after reverse osmosis, depending on the recipe, taste and occasion.
- Reverse osmosis is a filtration process that works with a semi-permeable membrane.
- In the currently available systems, water that is filtered by reverse osmosis is so pure that it hardly contains any minerals at all.
- Unique: At LUQEL, after filtration water is mineralised according to individual taste.
Discover the LUQEL Water Station. The guarantee for purest, individually mineralised drinking water.