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1. (WO2005123610) IN-SITU GROUNDWATER NITRIFICATION AND DE-NITRIFICATION REMEDIATION SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/123610    International Application No.:    PCT/CA2005/000931
Publication Date: 29.12.2005 International Filing Date: 16.06.2005
IPC:
C02F 3/30 (2006.01), C02F 1/72 (2006.01), C02F 1/58 (2006.01), G01N 33/18 (2006.01)
Applicants: MAILATH, Stephen B. [CA/CA]; (CA).
CHU, Ann Chien [CA/CA]; (CA)
Inventors: MAILATH, Stephen B.; (CA).
CHU, Ann Chien; (CA)
Agent: DERENYI, Eugene; Stikeman Elliott LLP, 1600-50 O'Connor Street, Ottawa, Ontario K1P 6L2 (CA)
Priority Data:
60/580,415 16.06.2004 US
11/090,380 25.03.2005 US
Title (EN) IN-SITU GROUNDWATER NITRIFICATION AND DE-NITRIFICATION REMEDIATION SYSTEM
(FR) SYSTEME DE BIORESTAURATION PAR LA NITRIFICATION ET LA DENITRIFICATION DES EAUX SOUTERRAINES IN SITU
Abstract: front page image
(EN)A method of in-situ groundwater nitrification, by: extracting groundwater from the ground; adding oxygen to the extracted groundwater; adding nutrients to the extracted groundwater; and injecting the groundwater back into the ground, wherein the oxygen reacts with in-situ nitrifying bacteria to oxidize ammonia to nitrate, and wherein the nutrients encourage the nitrifying bacteria to grow and reproduce. A method of in-situ groundwater de-nitrification, by: extracting the groundwater from the ground; adding carbon to the extracted groundwater; adding nutrients to the extracted groundwater; and injecting the groundwater back into the ground, wherein the carbon reacts with in-situ de-nitrifying bacteria to reduce nitrate to nitrogen gas, and wherein the nutrients encourage the de-nitrifying bacteria to grow and reproduce.
(FR)La présente invention a trait à un procédé de nitrification des eaux souterraines in situ comprenant: l'extraction des eaux souterraines à partir du sol; l'ajout d'oxygène aux eaux souterraines extraites; l'ajout de nutriments aux eaux souterraines extraites; et la réinjection des eaux souterraines dans le sol, selon lequel l'oxygène réagit avec les bactéries de nitrification in situ pour l'oxydation d'ammoniac en nitrate, et selon lequel les nutriments favorisent la croissance et la reproduction des bactéries de nitrification. L'invention a également trait à un procédé de dénitrification des eaux souterraines in situ comprenant: l'extraction des eaux souterraines à partir du sol; l'ajout de carbone aux eaux souterraines extraites; l'ajout de nutriments aux eaux souterraines extraites; et la réinjection des eaux souterraines dans le sol, selon lequel le carbone réagit avec les bactéries de dénitrification in situ pour la réduction de nitrate en azote gazeux, et selon lequel les nutriments favorisent la croissance et la reproduction des bactéries de dénitrification.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)