Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018105569) WATER TREATMENT METHOD AND WATER TREATMENT DEVICE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/105569 International Application No.: PCT/JP2017/043524
Publication Date: 14.06.2018 International Filing Date: 04.12.2017
IPC:
C02F 9/04 (2006.01) ,B01D 61/14 (2006.01) ,B01D 61/16 (2006.01) ,B01D 61/22 (2006.01) ,C02F 1/42 (2006.01) ,C02F 1/44 (2006.01) ,C02F 1/52 (2006.01) ,G01N 15/02 (2006.01)
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
9
Multistep treatment of water, waste water or sewage
04
at least one step being a chemical treatment
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
14
Ultrafiltration; Microfiltration
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
14
Ultrafiltration; Microfiltration
16
Feed pretreatment
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
14
Ultrafiltration; Microfiltration
22
Controlling or regulating
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
42
by ion-exchange
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
52
by flocculation or precipitation of suspended impurities
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15
Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
02
Investigating particle size or size distribution
Applicants:
旭化成株式会社 ASAHI KASEI KABUSHIKI KAISHA [JP/JP]; 東京都千代田区有楽町一丁目1番2号 1-1-2 Yurakucho, Chiyoda-ku, Tokyo 1000006, JP
国立大学法人北海道大学 NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY [JP/JP]; 北海道札幌市北区北8条西5丁目 Kita 8-jyo Nishi 5-chome, Kita-ku, Sapporo-shi, Hokkaido 0600808, JP
Inventors:
橋野 昌年 HASHINO, Masatoshi; JP
岡村 大祐 OKAMURA, Daisuke; JP
木村 克輝 KIMURA, Katsuki; JP
Agent:
青木 篤 AOKI, Atsushi; JP
三橋 真二 MITSUHASHI, Shinji; JP
中村 和広 NAKAMURA, Kazuhiro; JP
齋藤 都子 SAITO, Miyako; JP
三間 俊介 MIMA, Shunsuke; JP
Priority Data:
2016-23624805.12.2016JP
Title (EN) WATER TREATMENT METHOD AND WATER TREATMENT DEVICE
(FR) PROCÉDÉ DE TRAITEMENT DE L'EAU ET DISPOSITIF ASSOCIÉ
(JA) 水処理方法および装置
Abstract:
(EN) Provided are a water treatment method and a water treatment device whereby water to be treated, said water containing humin substances and biopolymers, can be stably filtered through a membrane without causing clogging of the filtration membrane. The water treatment method for clarifying water to be treated, which contains humin substances and high-molecular substances, comprises: a humin substance removal step for subjecting the water to be treated to a treatment for removing the humin substances to give humin substance-reduced water; a high-molecular substance aggregation step for aggregating the high-molecular substances in the humin substance-reduced water by a treatment with the use of an aggregating agent to give aggregate-containing water; and a membrane filtration step for filtering the aggregate-containing water through a membrane.
(FR) L'invention concerne un procédé de traitement de l'eau et un dispositif associé tels, que l'eau à traiter, ladite eau contenant des substances humiques et des biopolymères, peut être filtrée de manière stable par passage par une membrane sans provoquer le colmatage de la membrane de filtration. Le procédé de traitement de l'eau destiné à clarifier l'eau à traiter, qui contient des substances humiques et des substances de poids moléculaire élevé, comprend : une étape d'élimination des substances humiques qui soumet l'eau à traiter à un traitement d'élimination des substances humiques pour obtenir une eau à teneur réduite en substances humiques ; une étape d'agrégation des substances de poids moléculaire élevé pour agréger les substances de poids moléculaire élevé dans l'eau à teneur réduite en substances humiques par un traitement faisant appel à un agent d'agrégation pour obtenir une eau contenant des agrégats ; et une étape de filtration sur membrane pour filtrer l'eau contenant des agrégats par passage par une membrane.
(JA) フミン質およびバイオポリマーを含む被処理水を、ろ過膜の目詰まりを生じることなく、安定して膜ろ過することができる水処理方法および装置を提供する。 フミン質と高分子物質とが含まれる被処理水を清澄化する水処理方法において、被処理水に対し、フミン質を除去し、フミン質低減水を生成する処理を施すフミン質除去工程と、フミン質低減水中の高分子物質を凝集剤により凝集させた凝集体含有水を生成する処理を行う高分子凝集工程と、凝集体含有水を膜によりろ過する膜ろ過工程とを有する。
front page image
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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)