(19)

(11)

EP 1 558 897 A1

(12)

(43) Date of publication: 03.08.2005 Bulletin 2005/31 (21) Application number: 03757731.9 (22) Date of filing: 21.10.2003

(51) International Patent Classification (IPC)7: G01F 1/00, E03F 5/00 (86) International application number: PCT/DK2003/000711 (87) International publication number: WO 2004/038343 (06.05.2004 Gazette 2004/19)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 25.10.2002 DK 200201623 (71) Applicant: Waste Water Control ApS 2830 Virum (DK)	(72) Inventors: NIELSEN, Marinus, Kristian DK-2830 Virum (DK) LINDSTRÖM, Mette DK-2100 Copenhagen (DK) (74) Representative: Schwarze, Holm et al Zacco Denmark A/SHans Bekkevolds Allé 7 2900 Hellerup 2900 Hellerup (DK)