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US 8,524,298 B2Granted
Process and device for enriching water with magnesium ions
AssigneeBWT Aktiengesellschaft
InventorsJürgen Johann, Monique Bissen
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Abstract
The invention relates to a process and a device for enriching water, in particular drinking water, with magnesium ions. In order to enable enrichment of water with magnesium ions in exchange for calcium ions and/or heavy metal ions during treatment of water, and in particular of drinking water, it is proposed according to the invention to pass the water through an ion exchanger which contains a weakly acidic ion exchange material, wherein at least a part of its ion exchange capacity is loaded with magnesium ions.
Claims9
A process for treating drinking water, comprising:
- providing an ion exchanger which contains a weakly acidic ion exchange material, the ion exchange material being loaded at least to a part of its capacity with magnesium ions and loaded in the range of 70 to 30% of its capacity with hydrogen ions;
- conveying water through the ion exchanger, wherein calcium ions are extracted from the water in exchange against magnesium ions, and thereby producing drinking water enriched with magnesium ions.
Dependencies are inferred from the claim text.