(19)

(11)

EP 4 288 391 A1

(12)

(43) Date of publication: 13.12.2023 Bulletin 2023/50 (21) Application number: 22706538.0 (22) Date of filing: 03.02.2022

(51) International Patent Classification (IPC):  C02F 9/00(2023.01) B63J 4/00(2006.01) E03D 5/014(2006.01) C02F 11/10(2006.01) C02F 1/44(2023.01) C02F 1/28(2023.01) A47K 11/02(2006.01) B64D 11/02(2006.01) C02F 1/04(2023.01) C02F 11/126(2019.01) C02F 1/16(2023.01) C02F 1/32(2023.01) (52) Cooperative Patent Classification (CPC): C02F 9/00; C02F 2303/10; C02F 2301/046; C02F 2201/001; C02F 2103/002; C02F 2103/005; C02F 2103/008; C02F 2301/063; C02F 2001/007; C02F 1/048; C02F 1/16; C02F 1/283; C02F 1/32; C02F 1/442; C02F 1/444; C02F 11/126; C02F 11/13; C02F 11/10; C02F 2209/005; A47K 11/023; B64D 11/02; B63J 4/006; E03D 5/014 (86) International application number: PCT/EP2022/052591 (87) International publication number: WO 2022/167529 (11.08.2022 Gazette 2022/32)

(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: 04.02.2021 GB 202101583 (71) Applicant: Safe Waste Technology Limited Stourbridge DY8 1PH (GB)	(72) Inventors: BROWN, Timothy James Stourbridge DY8 1PH (GB) WILLIAMS, Leon Brett Matthew Cranfield Bedfordshire MK43 0AL (GB) (74) Representative: Murgitroyd & Company  Murgitroyd House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)