Carlsberg A/s

Jurag Separation A/s

Jens-Ulrik Rype

Arvid Garde

Gunnar Jonsson

A method and a system for process parameter control of a liquid composition in a reverse electro-enhanced dialysis (REED) system comprising at least two Reverse Electro-Enhanced Dialysis (REED) membrane stacks, wherein the direction of the electric field within any one membrane stack is reversed at asynchronical intervals of time relative to the current reversals for any other membrane stack.

Method and system for improved process parameter control of a liquid composition in a reverse electro-enhanced dialysis (REED) system

A process for simultaneously controlling the pH and level of target ions of a liquid composition, more particularly the use of Reverse Electro-Enhanced Dialysis (REED) for extraction of low-molecular, charged species generated in a reactor. Even more particularly, the invention relates to a process for simultaneous pH control and control of inhibitors in an ongoing fermentation or catalytical system, where the pH is controlled by at least one primary Reverse Electro-Enhanced Dialysis (REED) stack and the level of target ions by at least one secondary REED stack, where the primary REED is one of a Cation REED (CX-REED) or an Anion REED (AX-REED) and the secondary REED is the other of a CX-REED and an AX-REED.

Process for controlling the pH and level of target ions of a liquid composition

The present invention relates to a method for isolation of ionic species from a liquid and an apparatus for isolation of ionic species from a liquid. Moreover the invention relates to an electro enhanced dialysis cell and the use of the cell in the method and the apparatus.

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Gentofte, Denmark

Jens-Ulrik Rype