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公开(公告)号：US20170288250A1
公开(公告)日：2017-10-05
申请号：US15507320
申请日：2015-08-28
申请人： Kemira Oyj
IPC分类号： H01M8/1041 , H01M8/1011 , H01M8/16 , H01M8/04082
CPC分类号： H01M8/1055 , H01M8/04197 , H01M8/1011 , H01M8/16 , H01M2008/1095 , Y02E60/523 , Y02E60/527
摘要： An electrolyte membrane suitable for use in an electrochemical cell is described. It comprises a polymer electrolyte body and at least one metal oxide thin film layer on at least one surface of the polymer electrolyte body, wherein said metal oxide thin film layer is permeable to protons. Furthermore, the method for preparation and uses thereof are disclosed.
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公开(公告)号：US20180319682A1
公开(公告)日：2018-11-08
申请号：US15773572
申请日：2016-11-04
申请人： Kemira Oyj
CPC分类号： C02F1/56 , C02F1/52 , C02F1/5245 , C02F2101/30 , C02F2101/34 , C02F2103/28 , C07G1/00 , C08H6/00 , D21C11/00 , D21C11/0007 , D21C11/0014 , D21C11/0028
摘要： The invention relates to a method for optimising material recovery in a chemical pulping process. The method comprises treating of cellulosic raw material with cooking chemicals in a cooking step, where lignin is at least partly dissolved into cooking liquid phase and separated from fibres. The lignin is separated from the cooking liquid phase. The separated lignin is used for formation of a treatment composition comprising at the most 1 weight-% of aluminium. A bleaching liquid phase is treated with the treatment composition in order to remove organic humic substances from the bleaching liquid. Organic sludge is formed and it is used for energy production in a chemical recovery step.
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公开(公告)号：US20180244549A1
公开(公告)日：2018-08-30
申请号：US15756926
申请日：2016-08-31
申请人： Kemira Oyj
摘要： A method for removing humic substances comprising lignin, other lignin type compounds and their disintegration products from an aqueous alkaline waste water from a bleaching of chemical pulp, which method comprises—obtaining an aqueous alkaline waste water comprising humic substances such as dissolved lignin, and—adding a high cationic starch having a charge density value of at least 1.8 meq/g dry matter of starch derivates determined at pH 7-7.5 to the alkaline waste water to precipitate humic substances.
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公开(公告)号：US12116294B2
公开(公告)日：2024-10-15
申请号：US17618815
申请日：2020-06-12
申请人： KEMIRA OYJ
IPC分类号： C02F1/52 , C02F1/56 , C02F1/66 , C02F103/28
CPC分类号： C02F1/5245 , C02F1/56 , C02F1/66 , C02F2103/28 , C02F2209/08
摘要： A treatment system for removing dissolved organic compounds from wastewater, which comprises a water-soluble cationic polymer, and wood-based organic material having an average particle size
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公开(公告)号：US10862152B2
公开(公告)日：2020-12-08
申请号：US16064066
申请日：2016-12-29
申请人： Kemira Oyj
IPC分类号： H01M8/16 , B01D61/06 , C02F1/44 , C02F3/00 , H01M4/90 , B01D61/02 , C02F103/28 , C02F103/32 , B01D71/02 , B01D71/56 , C02F103/10
摘要： The invention relates to a microbial fuel cell arrangement comprising a cell reactor. The cell reactor comprises a membrane, which has an active surface and a support surface, as well as a pore size of ≤10 nm and/or a divalent ion rejection of ≥50%; an anode and a cathode, which are connected with each other through an external electrical circuit; an influent inlet for liquid medium arranged at the active surface side of the membrane and at least one permeate outlet arranged at the support surface side of the membrane; an influent line connected to the influent inlet; a concentrate outlet, arranged at the active surface side of the membrane and connected to a concentrate line; and pressurisation means for creating pressure difference between the active surface side and support surface side of the membrane. The invention relates also to a method for operating a microbial fuel cell.
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公开(公告)号：US10703662B2
公开(公告)日：2020-07-07
申请号：US16093029
申请日：2017-04-07
申请人： Kemira Oyj
发明人： Joonas Likander , Sakari Halttunen , Outi Grönfors , Bengt Hansen
IPC分类号： C02F11/14 , C02F1/52 , C02F1/56 , C02F3/28 , C02F1/00 , C02F11/04 , C02F1/38 , C02F11/147 , C02F11/143
摘要： The present invention relates to a process for treating primary sludge in a wastewater treatment plant, comprising the steps of admixing an organic coagulant and/or polymer to wastewater; allowing a primary treatment of the wastewater in the presence of the organic coagulant or polymer; separating solids as a primary sludge from said primary treatment; and dewatering the primary sludge. The present invention further relates to a method of improving primary sludge dewaterability and improving energy balance of a wastewater treatment plant.
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公开(公告)号：US10662092B2
公开(公告)日：2020-05-26
申请号：US15756926
申请日：2016-08-31
申请人： Kemira Oyj
IPC分类号： C02F1/52 , B01D21/01 , C02F1/56 , C02F103/28 , C02F101/30
摘要： A method for removing humic substances comprising lignin, other lignin type compounds and their disintegration products from an aqueous alkaline waste water from a bleaching of chemical pulp, which method comprises —obtaining an aqueous alkaline waste water comprising humic substances such as dissolved lignin, and —adding a high cationic starch having a charge density value of at least 1.8 meq/g dry matter of starch derivates determined at pH 7-7.5 to the alkaline waste water to precipitate humic substances.
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公开(公告)号：US10570036B2
公开(公告)日：2020-02-25
申请号：US15779425
申请日：2016-11-22
申请人： KEMIRA OYJ
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.
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公开(公告)号：US20190006693A1
公开(公告)日：2019-01-03
申请号：US16064066
申请日：2016-12-29
申请人： Kemira Oyj
摘要： The invention relates to a microbial fuel cell arrangement comprising a cell reactor. The cell reactor comprises a membrane, which has an active surface and a support surface, as well as a pore size of ≤10 nm and/or a divalent ion rejection of ≥50%; an anode and a cathode, which are connected with each other through an external electrical circuit; an influent inlet for liquid medium arranged at the active surface side of the membrane and at least one permeate outlet arranged at the support surface side of the membrane; an influent line connected to the influent inlet; a concentrate outlet, arranged at the active surface side of the membrane and connected to a concentrate line; and pressurisation means for creating pressure difference between the active surface side and support surface side of the membrane. The invention relates also to a method for operating a microbial fuel cell.
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公开(公告)号：US20180366756A1
公开(公告)日：2018-12-20
申请号：US16062964
申请日：2016-12-16
申请人： Kemira Oyj
发明人： Mehrdad Hesampour , Hannele Havansi , Sakari Halttunen , Jussi Ruotsalainen , Adina Anghelescu-Hakala , Jani Pelto
IPC分类号： H01M8/16 , H01M8/1053 , H01M8/1009 , H01M2/16 , C08L33/14
摘要： The invention relates to a microbial fuel cell, which comprises a cell reactor, a cathode arranged on a cathode side of the cell reactor, and an anode arranged on an anode side of the cell reactor. The cathode and anode are connected with each other through an external circuit. Further the cell reactor comprises a proton permeable membrane, which is arranged between the anode and cathode, and which divides the cell reactor into the anode side and the cathode side. The membrane comprises a membrane core having a pore size of ≤10 nm and/or divalent rejection ≥50% and a hydrophilic polymeric surface layer on at least one side of the membrane core and attached permanently to the membrane core. The invention relates also to the use of the microbial fuel cell.
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