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1. (WO2014208599) METHOD FOR CLEANING FILTRATION MEMBRANE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2014/208599    International Application No.:    PCT/JP2014/066843
Publication Date: 31.12.2014 International Filing Date: 25.06.2014
IPC:
B01D 65/06 (2006.01)
Applicants: MITSUBISHI RAYON CO., LTD. [JP/JP]; 1-1, Marunouchi 1-chome, Chiyoda-ku, Tokyo 1008253 (JP)
Inventors: SUYA Kyouhei; (JP).
AMBO Takanori; (JP)
Agent: SHIGA Masatake; (JP)
Priority Data:
2013-137501 28.06.2013 JP
Title (EN) METHOD FOR CLEANING FILTRATION MEMBRANE
(FR) PROCÉDÉ DE NETTOYAGE D'UNE MEMBRANE DE FILTRATION
(JA) 濾過膜の洗浄方法
Abstract: front page image
(EN)A method for cleaning a filtration membrane, which comprises reverse flowing of a cleaning agent from the processed water side to the raw water side of the filtration membrane, said cleaning agent containing chloric acid, a salt thereof or the like and a surfactant. In this method for cleaning a filtration membrane, the permeation flux of the cleaning agent during the reverse flowing is 0.15-3.0 m/d.
(FR)L'invention porte sur un procédé qui permet de nettoyer une membrane de filtration et qui comporte la circulation inversée d'un agent de nettoyage du côté eau traitée vers le côté eau brute de la membrane de filtration, ledit agent de nettoyage contenant de l'acide chlorique, un sel de celui-ci ou autre et un tensioactif. Dans ce procédé de nettoyage d'une membrane de filtration, le flux de perméation de l'agent de nettoyage pendant la circulation inversée est de 0,15 à 3,0 m/j.
(JA) 塩素酸類又はその塩と界面活性剤とを含む洗浄剤を濾過膜の処理水側から原水側に逆通液することを含み、前記逆通液における前記洗浄剤の透過流束が0.15~3.0m/dである濾過膜の洗浄方法。
Designated States: 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, 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, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)