Spiral wound module having axial dilution chamber flow
AssigneeP & LS Holding GmbH
InventorsThomas Menzel, Swen Beusshausen, Denis Stocklin
Life of this patent
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Abstract
A spiral wound module for the electrochemical desalination of aqueous salt-containing solutions, whose feeds (71) for solution to be desalinated and whose discharge (72) for desalinated water are mounted on side walls (31, 32) of the dilution chamber (3) of the module, permits an axial instead of tangential flow in the dilution chamber (3).
Claims20
A process for the electrochemical desalination of aqueous salt-containing solutions using a spiral wound module, wherein the flow of the salt-containing solution to be desalinated is effected axially through the dilution chamber of the spiral wound module.
A spiral wound module for the electrochemical desalination of aqueous salt-containing solutions, comprising:
- a) at least one spiral-wound dilution chamber (3) having spiral side walls (31, 32) and having an inner dilution chamber part (34);
- at least one spiral-wound concentrate chamber (4) having an inner concentrate chamber part (42);
- such that inner dilution chamber part (34) and inner concentrate chamber part (44) in the wound state define an inner, axial cavity;
- b) an inner electrode (5) running in the inner axial cavity;
- an outer electrode (6) surrounding the wound dilution chamber (3) and the wound concentrate chamber (4);
- c) a feed (71) which is provided in one spiral side wall (31) and is capable of feeding aqueous salt-containing solution to be desalinated into the dilution chamber (3);
- and a discharge (72) which is provided in the other spiral side wall (32) and is capable of discharging desalinated aqueous solution from the dilution chamber (3);
- and
- d) a first pipe (8) which is capable of feeding concentrate into the concentrate chamber (4) and/or of discharging concentrate from the concentrate chamber (4);
- and a second pipe (9) which is capable of discharging concentrate from the concentrate chamber (4) and/or of feeding concentrate into the concentrate chamber (4).
Dependencies are inferred from the claim text.