(19)

(11)

EP 2 480 506 A1

(12)

(43) Date of publication: 01.08.2012 Bulletin 2012/31 (21) Application number: 10818466.4 (22) Date of filing: 22.09.2010

(51) International Patent Classification (IPC):  C02F 11/12(2006.01) (86) International application number: PCT/FI2010/050735 (87) International publication number: WO 2011/036344 (31.03.2011 Gazette 2011/13)

(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 SE SI SK SM TR (30) Priority: 23.09.2009 FI 20090348 (71) Applicants: Kainuun Jätehuollon Kuntayhtymä 87700 Kajaani (FI) Envitop OY 90240 Oulu (FI)	(72) Inventors: PALKO, Jukka FI-90240 Oulu (FI) PIIRAINEN, Eero FI-87100 Kajaani (FI) (74) Representative: Pitkänen, Hannu Alpo Antero  Patent Agency Pitkänen Oy P.O. Box 1188 70211 Kuopio 70211 Kuopio (FI)