BWT AKTIENGESELLSCHAFT Patent applications |
Patent application number | Title | Published |
20130306541 | PROCESS AND DEVICE FOR ENRICHING WATER WITH MAGNESIUM IONS - 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. | 11-21-2013 |
20130240446 | METHODS OF OPERATING A MEMBRANE SEPARATION DEVICE, CONTROL DEVICES FOR A MEMBRANE SEPARATION DEVICE AND DEVICES THAT OPERATE A MEMBRANE SEPARATION DEVICE - A method of operating a membrane separation device in a continuous flow process includes in the membrane separation device, separating a supply liquid into a first partial stream and a second partial stream, wherein flow rate of the second partial stream and/or recovery rate of the second partial stream is influenced by at least one influencing variable that varies during operation, and varying the flow rate of the first partial stream to compensate for a change of the at least one influencing variable to control flow rate and/or recovery rate of the second partial stream to a preset value. | 09-19-2013 |
20130118984 | PROCESS AND SYSTEM FOR TREATING WATER - A process for producing ultrapure water, in which a stream of water is purified in a reverse osmosis device, wherein the water stream is subject to pretreatment including splitting the water stream into at least two partial streams, partial exchange of cations present in at least one of the partial streams for H | 05-16-2013 |