Patent SG-11201806346W-A (SG)
Title: Remediation and/or restoration of an anoxic body of water
Inventor: WASSMANN HARTMUT
IPC: C02F7/00
Filed: 2017-03-24
Abstract: WO 17 / 16 28 47 Al (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 2017/162847 Al 28 September 2017 (28.09.2017) WIPO I PCT (51) International Patent Classification: CO2F 3/02 (2006.01) CO2F 3/30 (2006.01) BO9C 1/00 (2006.01) CO2F 7/00 (2006.01) (21) International Application Number: PCT/EP2017/057041 (22) International Filing Date: 24 March 2017 (24.03.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 16162307.9 24 March 2016 (24.03.2016) EP (71) Applicant: YARA INTERNATIONAL ASA [NO/NO]; Drammensveien 131, 0277 Oslo (NO). (72) Inventors: WASSMANN, Hartmut; BreitscheidstraBe 28, Ortsteil Borgsdorf, 16556 Hohen Neuendorf (DE). KLEMZ, Roman; Finsterwalder StraBe 24, 13435 Berlin (DE). (74) Agent: DE CLERCQ & PARTNERS; Edgard Gevaertdreef 10a, 9830 Sint-Martens-Latem (BE). (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)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) (54) Title: REMEDIATION AND/OR RESTORATION OF AN ANOXIC BODY OF WATER FIG. 18 (57) : The application relates to a method for remediation and/or restoration of an anoxic body of water (10), wherein a cal- cium nitrate solution (3) is added to the anoxic body of water (10), and wherein the method comprises the steps of mixing water hav - ing a percent of oxygen saturation of between 50% and 150% with the calcium nitrate solution (3), resulting in a mixture, and pump - ing the mixture into the anoxic body of water (10), wherein the fmal concentration of nitrate-N in the remedied and/or restored anox - ic body of water (10) is between 1 and 20mg/l. The application furthermore relates to a system (1) for remediation and/or restoration of an anoxic body of water (10), wherein the system (1) is provided with means to add a calcium nitrate solution (3) to the anoxic body of water (10), wherein the means to add the calcium nitrate solution (3) to the anoxic body of water (10) consists of a mixing device (2) arranged to mix the calcium nitrate solution (3) with water having a percent of oxygen saturation of between 50% and 150%, resulting in a mixture, and wherein the system (1) comprises first pumping means (5) for pumping the mixture into the anoxic body of water (10). 11111111111111011101111111111101011111011101111111101111110111111111111111111110111111