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    • 5. 发明申请
    • RECEPTOR AND METHOD FOR REMOVING OXOANIONS FROM AN AQUEOUS PHASE
    • WO2020180199A1
    • 2020-09-10
    • PCT/PL2020/000025
    • 2020-03-06
    • UNIWERSYTET WARSZAWSKI
    • ROMANSKI, JanJAGLENIEC, DamianKARBARZ, Marcin
    • C02F1/28C02F1/68B01J20/32B01J45/00C02F101/00C02F101/10C02F101/16
    • A receptor for the simultaneous removal of oxoanions and their counterions from aqueous phase, particularly containing radioactive wastes, containing amide groups specifically coordinating the oxoanions, as well as moieties specifically coordinating cations, according to the present invention is characterised in that it contains within one molecule domains binding oxoanions and domains binding cations, preferably adapting a molecular structure of a general formula: (I) wherein Z this is a group containing crown ether, preferably a benzocrown group, X is any substituent, including the Y-Z grouping, and Y is any substituent or 0 (i.e. a direct bond between N a nd Z), where the oxoanion binding domain is a squaramide unit coordinating the oxoanions through amide groups, and squaramide contains additional substituents that increase or decrease the acidity of its amide protons, compared to unsubstituted squaramide, whereas the counter ion binding domain is a crown ether of a size adjusted to the type of binding cation, which forms part of at least one of the aforementioned substituents of squaramide, where the receptor has the ability to remove oxoanions and their counterions from aqueous phase to another water-immiscible phase, preferably to organic phase, and has the ability to form soluble complexes in at least one of the aforementioned phases. The invention considers also a method of removing oxoanions in the form of inorganic salts from aqueous phase, using receptors of the invention in the form of organic molecules containing amide groups, according to the invention is characterised in that it uses the aforementioned receptors for simultaneous binding of oxoanions and their counterions in aqueous phase, preferably acidic when using the receptor with substituents increasing acidity of squaramide protons, or alkaline when using the receptor with substituents decreasing acidity of squaramide protons. A sensor for detecting oxoanions according to the invention is characterised in that it uses the aforementioned receptors, dissolved or suspended in an organic solvent or in a mixture of organic solvents, forming coloured complexes in contact with the phase containing given oxoanions. The preparation for removing oxoanions from aqueous solutions, particularly containing radioactive waste at the stage preceding their disposal by vitrification, is characterised in that it contains the receptor according to the invention, dissolved or suspended in the water-immiscible phase, and the appropriate amount of counterion facilitating extraction. A process of utilisation of aqueous solutions by vitrification, particularly solutions containing radioactive waste, is characterised in that vitrification step is preceded by the step of oxoanions removal, preferably sulfate(VI) anions, by the method according to the invention, using the receptors according to the invention, preferably using the preparation according to the invention.
    • 6. 发明申请
    • IRON BASED MEDIA
    • 铁基媒体
    • WO2018065614A1
    • 2018-04-12
    • PCT/EP2017/075572
    • 2017-10-06
    • HÖGANÄS AB (PUBL)
    • CHANG, HyunshikTANDUKAR, MadanENDLER, Paul
    • C02F1/28B01J20/30C02F1/66B01J20/02B01J20/28C02F101/00C02F101/20C02F101/36
    • A filtering medium for removing the content of contaminants in fluids, wherein said filtering medium includes an acid-washed iron-based powder, wherein the acid-washed iron-based powder is formed by washing an iron-based powder in HCl, wherein the BET surface area of the acid-washed iron-based powder is at least 1.2 m2/g, wherein the acid- washed iron-based powder has a Fe content of at least 90% by weight. And, a method for reducing the content of contaminants in fluids including the steps of: a) providing the filtering medium, b) bringing one or more contaminated fluid(s) in contact with the filtering medium to reduce the content of contaminants in said one or more fluid(s), c) optionally removing the filtering medium from the one or more fluid(s) with a reduced content of contaminants.
    • 用于去除流体中污染物含量的过滤介质,其中所述过滤介质包括酸洗过的铁基粉末,其中所述酸洗过的铁基粉末通过洗涤铁基粉末形成, 其中所述酸洗过的铁基粉末的BET表面积为至少1.2m 2 / g,其中所述酸洗过的铁基粉末具有至少90重量%的Fe含量。 并且,一种减少流体中污染物含量的方法包括以下步骤:a)提供过滤介质; b)使一种或多种受污染的流体与过滤介质接触以降低所述一种或多种污染物中的污染物的含量 或更多流体,c)任选地从污染物含量降低的一种或多种流体中除去过滤介质。
    • 8. 发明申请
    • SYSTEM FOR REMOVING MICROPOLLUTANTS FROM WASTEWATER
    • 从废水中去除微污染物的系统
    • WO2017067882A1
    • 2017-04-27
    • PCT/EP2016/074881
    • 2016-10-17
    • LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY (LIST)
    • CORNELISSEN, AlexKOELER, Christian
    • C02F3/10C02F3/34C02F3/00C02F101/30C02F101/00
    • C02F3/34C02F3/106C02F2101/30C02F2203/006C02F2303/16C02F2305/06Y02W10/15
    • The invention is directed to a device adapted for wastewater treatment, said wastewater comprising at least one sort of micropollutant. Said device comprises a column 2 and a backwashing system in fluid connection with said column. The column comprises an inlet 4 and an outlet 6, said inlet being upstream to said outlet. The column also comprises a zone which comprises bacteriologically activated carbon 8 which is downstream to said inlet, said zone being divided in subzones A, B and C. In addition, the column comprises a backwashing space 10, being downstream to said zone comprising bacteriologically activated carbon. Said device is remarkable in that the bacteriologically activated carbon of subzone A comprises starving micro-organisms, the bacteriologically activated carbon of subzone B comprises micro-organisms fed through a first feeding system 14 and the bacteriologically activated carbon of subzone C comprises micro-organisms fed through a second feeding system 16.
    • 本发明涉及适用于废水处理的装置,所述废水包含至少一种微污染物。 所述装置包括柱2和与所述柱流体连接的反洗系统。 该柱包括入口4和出口6,所述入口位于所述出口的上游。 该塔还包括一个区域,该区域包括位于所述入口下游的细菌活性炭8,所述区域在子区域A,B和C中分开。此外,该塔包括反洗空间10,该反洗空间位于包含细菌学活化的所述区域的下游 碳。 所述装置的显着之处在于分区A的细菌学活性碳包含饥饿的微生物,分区B的细菌学活性碳包含通过第一供给系统14供给的微生物,并且分区C的细菌学活性碳包含供给微生物 通过第二喂食系统16。