SG11201808111TA - Cross-flow membrane filtration with inclined filtration channel - Google Patents

Abstract

• gl.....V 1 ! , 0,4,-,,,,• 60 '' ... ,,,,,,,,,,,,,,,,,,,,, 10 100 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/171638 Al 5 October 2017 (05.10.2017) WIPO I PCT (51) International Patent Classification: BOlD 63/00 (2006.01) BOlD 65/08 (2006.01) BOlD 69/00 (2006.01) (21) International Application Number: PCT/SG2017/050157 (22) International Filing Date: 28 March 2017 (28.03.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 10201602393R 28 March 2016 (28.03.2016) SG (71) Applicant: NANYANG TECHNOLOGICAL UNIVER- SITY [SG/SG]; 50 Nanyang Avenue, Singapore 639798 (SG). (72) Inventors: ZAMANI, Farhad; c/o Nanyang Technologic- al University, 50 Nanyang Avenue, Singapore 639798 (SG). CHEW, Jia Wei; c/o Nanyang Technological Uni- versity, 50 Nanyang Avenue, Singapore 639798 (SG). AK- HONDI, Ebrahim; c/o Nanyang Technological Univer- sity, 50 Nanyang Avenue, Singapore 639798 (SG). KRANTZ, William Bernard; c/o Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (SG). FANE, Anthony Gordon; c/o Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (SG). TAN, Yong Zen; c/o Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (SG). (74) Agent: ONG, Lucille Frances, Kheng Lu; Marks & Clerk Singapore LLP, Tanjong Pagar, P 0 Box 636, Singapore 910816 (SG). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3)) = (54) Title: CROSS-FLOW MEMBRANE FILTRATION WITH INCLINED FILTRATION CHANNEL Fig. 2 (57) : A cross-flow membrane filtration channel defined by at least one membrane, wherein at least one surface of the chan- nel is inclined at an angle away from a centreline of the channel in a direction of feed flow in the channel. The cross-flow membrane filtration channel judiciously manipulates the flow field on the feed side of the membrane to direct the particles or floes away from the membrane surface, thus minimizing any deposition or fouling. The filtration process using the cross-flow membrane filtration channel can be operated in the laminar regime, which requires lower energy compared to that in the conventional cross-flow setup, whereby filtration is operated in the energy-intensive turbulent regime. 1111111101111011101010111110101111101110101111101111011101111011111011110111111 W O 20 1717 / 1638 Al