(19)

(11)

EP 3 830 039 A1

(12)

(43) Date of publication: 09.06.2021 Bulletin 2021/23 (21) Application number: 19845405.0 (22) Date of filing: 31.07.2019

(51) International Patent Classification (IPC):  C02F 3/32(2006.01) (86) International application number: PCT/SE2019/050716 (87) International publication number: WO 2020/027715 (06.02.2020 Gazette 2020/06)

(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 Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 02.08.2018 SE 1850949 (71) Applicant: Laqua Treatment AB 29692 Yngsjö (SE)	(72) Inventor: ROSENQUIST, Dahn 296 92 YNGSJÖ (SE) (74) Representative: AWA Sweden AB  P.O. Box 5117 200 71 Malmö 200 71 Malmö (SE)