公开(公告)号：EP4421041A1

公开(公告)日：2024-08-28

申请号：EP23158662.9

申请日：2023-02-27

申请人： ITS Water Group SA

发明人： FEDOSEIENKO, Mykhailo ,  GORDIIENKO, Viktor ,  OSTREYKO, Yevgen

IPC分类号： C01F7/57 ,  C02F1/52

CPC分类号： C01F7/57 ,  C02F1/5245

摘要： The present invention relates to methods of producing aluminium-containing coagulants based on ultra-high-basicity polyaluminium chlorides (PAC), with Al2O3 content of more than 15.0% (wt. %), relative basicity within 70.0÷75.0% and long shelf life of at least 18 months. The production method can create a wide range of concentrations of an aqueous solution of polyaluminium chloride and is particularly useful for obtaining high concentrations of this substance. Compared to conventional coagulant production processes, the processes described herein are unique since they do not require the use of aluminium metal as a starting material. The products of the process are suitable for use in the technology of drinking water treatment and wastewater treatment for various branches of industrial production.

公开(公告)号：EP4414331A1

公开(公告)日：2024-08-14

申请号：EP24155663.8

申请日：2024-02-05

申请人： SK Innovation Co., Ltd.

发明人： SONG, Jae Yang

IPC分类号： C02F1/52 ,  C02F11/143 ,  C02F11/127 ,  C02F103/16

CPC分类号： C02F1/5245 ,  C02F2103/1620130101 ,  C02F11/127 ,  C22B7/007 ,  C02F11/143

摘要： is the present invention relates to a process of removing aluminium waste from wastewater. The process includes (a) supplying wastewater containing aluminium as a feed, (b) separating the wastewater into a liquid component and a sludge component containing the aluminium, (c) reacting the sludge component with sulfuric acid to produce aluminium sulfate, (d) mixing the aluminium sulfate with alcohol to produce aluminium sulfate hydrate, and (e) adding the aluminium sulfate hydrate produced in step (d) to the wastewater of step (a). The process can cost-effectively remove waste from wastewater and reduce the content of waste contained in the effluent to be discharged to nature.

公开(公告)号：EP3973068B1

公开(公告)日：2024-07-17

申请号：EP20873360.0

申请日：2020-10-12

IPC分类号： C02F1/52 ,  C12P5/02 ,  C02F11/00 ,  A01K1/01 ,  A01C3/02 ,  C02F103/20 ,  C02F101/32 ,  C02F101/10

CPC分类号： C02F1/5245 ,  C02F2103/2020130101 ,  C02F2101/32220130101 ,  C02F2209/1120130101 ,  C02F2101/10120130101 ,  C02F2303/0220130101 ,  C02F11/00 ,  Y02E50/30 ,  C02F1/5281 ,  C02F2209/00520130101 ,  C02F2307/0820130101 ,  Y02P60/22

公开(公告)号：EP3394009A1

公开(公告)日：2018-10-31

申请号：EP16822994.6

申请日：2016-12-21

申请人： KEMIRA OYJ

发明人： GRÖNFORS, Outi ,  KANGASLAHTI, Hanna-Mari ,  HANSEN, Bengt ,  HALTTUNEN, Sakari ,  AZARNOUSH, Fazlollah

IPC分类号： C05F7/00 ,  C02F9/00 ,  C02F1/52 ,  C02F1/56 ,  C02F3/12 ,  C02F11/04 ,  C02F11/12

CPC分类号： C02F9/00 ,  C02F1/001 ,  C02F1/24 ,  C02F1/5236 ,  C02F1/5245 ,  C02F1/5254 ,  C02F1/56 ,  C02F3/12 ,  C02F11/04 ,  C02F11/12 ,  C02F2001/5218 ,  C02F2101/105 ,  C05B17/00 ,  C05F7/00 ,  Y02A40/213 ,  Y02W10/15 ,  Y02W30/47

摘要： The present invention concerns a process for recovering phosphates from wastewater by adding to the wastewater at least one organic coagulant or polymer in a mechanical treatment step that leaves dissolved phosphorus in the water phase, separating a mechanical sludge from the treated wastewater, preferably by sedimentation, flotation or filtration, carrying the phosphorus-containing treated wastewater in a post-treatment step, where at least one chemical precipitant is added to precipitate the dissolved phosphate into solid phosphates, and separating the solid phosphates from the treated wastewater to recover the phosphates.

公开(公告)号：EP3380439A1

公开(公告)日：2018-10-03

申请号：EP16798523.3

申请日：2016-11-22

申请人： Kemira OYJ

发明人： HESAMPOUR, Mehrdad ,  AZARNOUSH, Fazlollah ,  HALTTUNEN, Sakari

IPC分类号： C02F3/12 ,  C02F1/44 ,  C02F1/52 ,  C02F1/56 ,  B01D65/08

CPC分类号： C02F1/5245 ,  B01D65/08 ,  B01D2321/168 ,  C02F1/444 ,  C02F1/5263 ,  C02F1/56 ,  C02F3/1268 ,  C02F3/1273 ,  C02F2101/105 ,  Y02W10/15

摘要： The present invention relates to a composition for treatment of wastewaters in a membrane bioreactor comprising a mixture of inorganic coagulants and organic water soluble polymer(s), wherein the inorganic coagulants are selected from iron and/or aluminium containing compounds and the organic water soluble polymers are selected from the group consisting of anionic, cationic, nonionic polymers, polysaccharides and polyphenolic compounds and any combination thereof. The present invention further relates to a method for treating of wastewaters in a membrane bioreactor, and uses thereof.

公开(公告)号：EP3292083B1

公开(公告)日：2018-08-15

申请号：EP16719319.2

申请日：2016-04-15

申请人： Unilever N.V. ,  Unilever PLC

发明人： BARNE, Sameer Keshav ,  RAJAGOPAL, Ramasubramaniam ,  SHRESTH, Rudra Saurabh ,  THIRUMENI, Dhanalakshmi

IPC分类号： C02F1/52 ,  B01D21/01 ,  G01N21/85 ,  E03B1/04

CPC分类号： B01D21/01 ,  B01D21/0012 ,  B01D21/2405 ,  B01D21/302 ,  B01D21/34 ,  B01D2201/12 ,  C02F1/001 ,  C02F1/008 ,  C02F1/283 ,  C02F1/52 ,  C02F1/5245 ,  C02F1/547 ,  C02F1/56 ,  C02F2101/301 ,  C02F2103/002 ,  C02F2209/40 ,  E03B1/04 ,  E03B2001/045 ,  Y02A20/148 ,  Y02A20/304

摘要： Device and process for continuous recycling of wash water, so that water consumption is reduced in conventional personal wash, especially in a shower. The device comprises a surfactant detector (2), a flocculation tank (4), a water tank (5) for cleaned water and a bypass valve (3), wherein the flowpath shifts directly to the water tank (5) by means of the valve (3) bypassing the flocculation tank (4), in the absence of a surfactant in the flowpath.

公开(公告)号：EP3325125A4

公开(公告)日：2018-05-30

申请号：EP16828143

申请日：2016-06-27

申请人： DA INNOVATION

发明人： ANDERSSON DANIEL

IPC分类号： B01D24/36 ,  B01D21/00 ,  B01D21/01 ,  C02F1/00 ,  C02F1/52 ,  C02F1/74 ,  C02F101/10

CPC分类号： B01D21/01 ,  B01D24/36 ,  C02F1/5245 ,  C02F1/5281 ,  C02F1/74 ,  C02F2001/007 ,  C02F2101/105 ,  C02F2201/003

摘要： An apparatus and a method for treatment of water is described. The method comprises the steps: - providing (401 ) untreated water 83) to a first compartment (12) of a container (2) - providing (403) a precipitation agent to the first compartment to precipitate a substance such as phosphate from the untreated water in the first compartment and providing a solid substance (6) having small particles to the first compartment, - aerating (405) the mixture in the first compartment (12) to let an precipitated substance bond to the small particles of the solid substance, - by aerating the layer allow small particles having the precipitated substance bonded thereto pass (407) under the force of gravity down through the layer to a collection container (8) located underneath the layer, - output (409) treated water (5) from a second compartment (13) of the container located 10 down streams the layer (4).

公开(公告)号：EP3040312B1

公开(公告)日：2018-05-09

申请号：EP15196543.1

申请日：2015-11-26

申请人： Veolia Water Solutions & Technologies Support

发明人： SAUVIGNET, Philippe ,  GAID, Abdelkader

IPC分类号： C02F1/42 ,  C02F1/52 ,  C02F9/00

CPC分类号： C02F9/00 ,  B01D21/0084 ,  B01D21/01 ,  B01J47/10 ,  C02F1/004 ,  C02F1/24 ,  C02F1/42 ,  C02F1/5245 ,  C02F1/5281 ,  C02F1/56 ,  C02F2001/007 ,  C02F2001/422 ,  C02F2101/30 ,  C02F2303/16 ,  C02F2305/12 ,  G01M15/14

公开(公告)号：EP3313787A1

公开(公告)日：2018-05-02

申请号：EP16734464.7

申请日：2016-06-24

申请人： Ecolab USA Inc.

发明人： DUTTLINGER JR., William Thomas ,  CAIRD, Brian Scott

IPC分类号： C02F1/56 ,  B01D21/01 ,  C02F1/68 ,  C08G73/02 ,  C08L79/02 ,  C02F101/32 ,  C02F103/10

CPC分类号： C02F1/56 ,  C02F1/24 ,  C02F1/385 ,  C02F1/5245 ,  C02F1/68 ,  C02F2101/325 ,  C02F2103/10 ,  C08G69/26 ,  C08G73/0206 ,  C08G73/0246 ,  C09K8/588 ,  E21B43/16

摘要： The present invention relates to a process for the treatment of water from the production well of chemical enhanced oil recovery (CEOR) extraction. In particular, the process relates to the treatment of produced water with a combination of reagents to clarify the water, the reagents being selected from (i) a dithiocarbamate polymer which is water-soluble and has a molecular weight of 00 or more and (ii) a metal ion selected from the group comprising a cation of a transition metal, aluminium and lead, and an apparatus therefor. The use of such reagents in the clarification of produced water from polymer flood from chemical enhanced oil recovery is also disclosed.

公开(公告)号：EP3189206A4

公开(公告)日：2018-02-21

申请号：EP14901341

申请日：2014-09-05

申请人： ECOLAB USA INC

发明人： ERGANG NICHOLAS S ,  DAVIS RONALD V

IPC分类号： E21B43/34 ,  C02F1/52 ,  C02F1/62

CPC分类号： C02F1/5209 ,  C02F1/5236 ,  C02F1/5245 ,  C02F2101/101 ,  C02F2101/103 ,  C02F2101/105 ,  C02F2101/108 ,  C02F2101/22 ,  C02F2103/10

摘要： The removal of oxoanions from an aqueous stream having a concentration of a metal cation and a concentration of an oxoanion that varies over time may involve continuously monitoring the concentration of the metal cation and the concentration of the oxoanion to provide a current metal cation concentration and a current oxoanion concentration. A metal cation source and an aluminum reagent may be added to the aqueous stream based on the measured current metal cation concentration and the current oxoanion concentration. The amount of the metal cation source and the aluminum reagent added to the stream may be effective to reduce the concentration of the oxoanion in the aqueous stream below a target threshold.