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1. (WO2019031430) REVERSE OSMOSIS TREATMENT METHOD AND WATER TREATMENT DEVICE
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/031430 International Application No.: PCT/JP2018/029354
Publication Date: 14.02.2019 International Filing Date: 06.08.2018
IPC:
B01D 61/04 (2006.01) ,C02F 1/44 (2006.01) ,C02F 1/50 (2006.01) ,C02F 1/70 (2006.01) ,C02F 1/76 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
61
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02
Reverse osmosis; Hyperfiltration
04
Feed pretreatment
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
44
by dialysis, osmosis or reverse osmosis
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
50
by addition or application of a germicide or by oligodynamic treatment
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
70
by reduction
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
72
by oxidation
76
with halogens or compounds of halogens
Applicants:
栗田工業株式会社 KURITA WATER INDUSTRIES LTD. [JP/JP]; 東京都中野区中野四丁目10番1号 10-1, Nakano 4-chome, Nakano-ku, Tokyo 1640001, JP
Inventors:
早川 邦洋 HAYAKAWA, Kunihiro; JP
進邦 周子 SHIMPO, Chikako; JP
Agent:
重野 剛 SHIGENO, Tsuyoshi; JP
重野 隆之 SHIGENO, Takayuki; JP
Priority Data:
2017-15544010.08.2017JP
Title (EN) REVERSE OSMOSIS TREATMENT METHOD AND WATER TREATMENT DEVICE
(FR) PROCÉDÉ DE TRAITEMENT À OSMOSE INVERSE ET DISPOSITIF DE TRAITEMENT D'EAU
(JA) 逆浸透膜処理方法及び水処理装置
Abstract:
(EN) Oxidizing agent concentration in supplied water or an index having a correlation with the oxidizing agent concentration is measured in a pathway between a point of addition for the oxidizing agent and a point of addition for a slime control agent, and the amount of a reducing agent added is controlled on the basis of this measured value. Furthermore, slime control agent concentration in water supplied to a RO membrane device or an index having a correlation with the slime control agent concentration is measured after the addition of the slime control agent, and the amount of slime control agent added is controlled on the basis of this measured value.
(FR) Dans la présente invention, la concentration en agent oxydant dans de l'eau alimentée ou un indice ayant une corrélation avec la concentration en agent oxydant est mesurée dans un trajet entre un point d'addition pour l'agent oxydant et un point d'addition pour un agent de neutralisation de boue, et la quantité d'un agent réducteur ajoutée est réglée sur la base de cette valeur mesurée. En outre, la concentration d'agent de neutralisation de boue dans l'eau fournie à un dispositif à membrane d'osmose inverse ou un indice ayant une corrélation avec la concentration d'agent de neutralisation de boue est mesurée après l'ajout de l'agent de neutralisation de boue, et la quantité d'agent de neutralisation de boue ajoutée est réglée sur la base de cette valeur mesurée.
(JA) 酸化剤の添加点からスライムコントロール剤の添加点までの経路で供給水の酸化剤濃度或いは酸化剤濃度と相関性を有する指標を測定し、この測定値に基づいて還元剤の添加量を制御するとともに、スライムコントロール剤添加後のRO膜装置の供給水又は濃縮水のスライムコントロール剤濃度或いはスライムコントロール剤濃度と相関性を有する指標を測定し、この測定値に基づいてスライムコントロール剤の添加量を制御する。
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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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, 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, 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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, 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)