(19)

(11)

EP 2 160 361 A1

(12)

(43) Date of publication: 10.03.2010 Bulletin 2010/10 (21) Application number: 08775510.4 (22) Date of filing: 24.06.2008

(51) International Patent Classification (IPC):  C02F 1/28(2006.01) B01D 39/04(2006.01) C02F 1/58(2006.01) (86) International application number: PCT/FI2008/050385 (87) International publication number: WO 2009/000970 (31.12.2008 Gazette 2009/01)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 27.06.2007 FI 20075493 (71) Applicant: Ab Konva-center Oy 64140 Tjöck (FI)	(72) Inventor: GRANLUND, Harry FI-64140 Tjöck (FI) (74) Representative: Syvänen, Ralf Ossian  Oy Kolster Ab, Iso Roobertinkatu 23, P.O. Box 148 00121 Helsinki 00121 Helsinki (FI)