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EP 4 526 009 A1

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(43) Date of publication: 26.03.2025 Bulletin 2025/13 (21) Application number: 23843580.4 (22) Date of filing: 17.07.2023

(51) International Patent Classification (IPC):  B01D 29/50(2006.01) B01D 53/74(2006.01) B01D 24/00(2006.01) B01D 39/02(2006.01) B01D 53/00(2006.01) (52) Cooperative Patent Classification (CPC): B01D 39/06; B01D 2239/065; B01D 53/0423; B01D 2257/304; B01D 2257/306; B01D 2253/102; B01D 2257/90; B01D 2258/06; B01D 2259/4145; B01D 2259/4146; B01D 2257/302; B01D 53/82; B01D 53/48; B01D 2257/40; B01D 2253/108; B01D 2253/25; B01D 2251/512; B01D 2251/10 (86) International application number: PCT/US2023/027880 (87) International publication number: WO 2024/019960 (25.01.2024 Gazette 2024/04)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 18.07.2022 US 202263390097 P (71) Applicants: Evoqua Water Technologies LLC Pittsburgh, PA 15222 (US) Evoqua Water Technologies Canada Ltd. Fredericton, New Brunswick E3B 6E9 (CA)

(72) Inventors: TRAINOR, Sean F. MILWAUKEE, Wisconsin 53212 (US) PUJARA, Devang N. SAN MARCOS, California 92069 (US) HAAN, Bryan D. STRATHROY, Ontario N7G 3H7 (CA) (74) Representative: Murgitroyd & Company  165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)