(19)

(11)

EP 2 533 875 A1

(12)

(43) Date of publication: 19.12.2012 Bulletin 2012/51 (21) Application number: 11742549.6 (22) Date of filing: 11.02.2011

(51) International Patent Classification (IPC):  B01D 24/28(2006.01) B01D 37/04(2006.01) B01D 24/48(2006.01) (86) International application number: PCT/SE2011/000024 (87) International publication number: WO 2011/099917 (18.08.2011 Gazette 2011/33)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 12.02.2010 US 303832 P 12.02.2010 SE 1050143 (71) Applicant: Nordic Water Products AB 421 32 Västra Frölunda (SE)	(72) Inventor: LARSSON, Hans, F. SE-421 32 Västra Frölunda (SE) (74) Representative: Estreen, Lars J.F.  Bergenstråhle & Lindvall AB P.O. Box 17704 118 93 Stockholm 118 93 Stockholm (SE)