SG11201903434UA - System and method for treatment of wastewater via enhanced electroflotation - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 1111114110111010101111101 110 1 01011111111110111011110 MEI HMI Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\"\"1 WO 2018/083594 A4 11 May 2018 (11.05.2018) WIPO I PCT (51) International Patent Classification: (71) Applicant: INDUSTRIE DE NORA S.P.A. [IT/IT]; Via CO2F 1/465 (2006.01) CO2F 9/00 (2006.01) Bistolfi 35, 20134 Milano (IT). CO2F 1/467 (2006.01) CO2F 11/12 (2006.01) (72) Inventors: CASBEER, Dana; 1110 Industrial Blvd., Su- CO2F 1/52 (2006.01) CO2F 103/00 (2006.01) gar Land, Texas 77478 (US). BARIYA, Rubin; 1110 In- CO2F 1/56 (2006.01) CO2F 103/08 (2006.01) dustrial Blvd., Sugar Land, Texas 77478 (US). PATEL, Se- (21) International Application Number: hul; 1110 Industrial Blvd., Sugar Land, Texas 77478 (US). PCT/IB2017/056766 MATOUSEK, Rudolf; 1110 Industrial Blvd., Sugar Land, (22) International Filing Date: Texas 77478 (US). REEVES, Thomas; 1110 Industrial 31 October 2017 (31.10.2017) Blvd., Sugar Land, Texas 77478 (US). (25) Filing Language: English (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (26) Publication Language: English AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (30) Priority Data: 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, 62/417,013 03 November 2016 (03.11.2016) US HR, HU, ID, IL, IN, IR, IS, JO, 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, (54) Title: SYSTEM AND METHOD FOR TREATMENT = = _ — = _ = = = = = _ = FIG. 'IA 71' Q I (57) : A method for treating wastewater 71- electrolytic cells mounted outside a batch tank. 01 tank. A diluted polymer solution is injected at ir) ef . 1 with the electrolyzed stream. The polymer solution 6f5 wastewater in the batch tank. The polymer solution facilitates flocculation ......._ © layer of flocculated solid particles attached with 015 and neutralized prior to discharge. The flocculated 1-1 are compacted to a desired level. A centrate generated 0 ei involves electrolyzing stream upstream and micro layer pumped The electrolyzed '10 of bubbles. substantially is during the electrolyzed OF Ni t 4 Alti, 4 -_,,, - . an in-line A the stream III , 1 1 1 ; 125 105 iz . 1 0 N — ;4 from the batch tank to WASTEWATER VIA ENHANCED ELECTROFLOTATION solids/sludge dewatering step Go mixer * a is piped to stream of piping into the quelling chamber substantially concurrently the suspended lit are clarified ,, ,,,--loo , IOC 11 - ' of seawater and wastewater mix within one or more a quelling dispersed effluent is separated from the flocculated layer II Cr 1 1 1 1 as solid chamber a dewatering system where entrained solids Sdi 54 99 which is mounted above the batch a fine shower over residual seawater and particles and creates a distinct buoyant is recirculated to the batch tank prior C [Continued on next page] WO 2018/083594 A4 MIDEDIMOMOIDEIREEMOOMEMIAIMOHIMEHMIE 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: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(U)) — 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)) — with amended claims (Art. 19(1)) Date of publication of the amended claims: 28 June 2018 (28.06.2018) to addition of seawater during a subsequent treatment cycle as a supplement seawater. to the