Patent SG-11201809017S-A (SG)
Title: Electrochemical system with concentration recirculation in cyclic batch mode
Inventor: LIANG LI-SHIANG
IPC: C02F1/66
Filed: 2017-05-04
Abstract: FIG. 1 200 100 160 140 280 980 380 360 320 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 09 November 2017 (09.11.2017) WI P0 I PC T o 1E1 olo VIII mum 0 omio1 om mo Immo lII ow (10) International Publication Number WO 2017/192907 Al (51) International Patent Classification: CO2F 1/469 (2006.01) CO2F 1/46 (2006.01) CO2F 1/00 (2006.01) CO2F 1/66 (2006.01) (21) International Application Number: PCT/US2017/031145 (22) International Filing Date: 04 May 2017 (04.05.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/332,536 06 May 2016 (06.05.2016) US (71) Applicant: EVOQUA WATER TECHNOLOGIES LLC [US/US]; 210 Sixth Avenue, Suite 330, Pittsburgh, PA 15222 (US). (72) Inventors: LIANG, Li-Shiang; 258 Bolton Road, P.O. Box 35, Harvard, Massachusetts 01451 (US). SHAW, Michael J.; 6 Pinegree Hill Road, Deny, New Hampshire 03038 (US). DU, Wenxin; 934 Lilac Lane, Dover, New Hampshire 03820 (US). (74) Agent: WILKINS, Frederick C.; 10 Technology Drive, Lowell, Massachusetts 01851 (US). (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, (54) Title: ELECTROCHEMICAL SYSTEM WITH CONCENTRATION RECIRCULATION IN CYCLIC BATCH MODE N O (57) : A method of operating an electrochemical device includes periodically discharging a volume of concentrate reject in a timed batch cycle and replacing the concentrate reject with feed water. An electrochemical water treatment system includes a recycle line having a valve controlled by a control module. The control module periodically opens the valve to discharge concentrate reject 0 from the recycle line in a batch timed cycle. The recycle line is fed with feed water to replace the discharged concentrate reject. O [Continued on next page] WO 2017/192907 Al IMEDIMOM0101011MMEMOMOMOMMONEMOVOIMIE TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3))