公开(公告)号：US12077455B2

公开(公告)日：2024-09-03

申请号：US17436780

申请日：2020-03-06

Applicant: UNIWERSYTET WARSZAWSKI

Inventor： Jan Romanski ,  Damian Jagleniec ,  Marcin Karbarz

IPC: C02F1/28 ,  C02F1/68 ,  C07D323/00 ,  G01N21/78 ,  G21F9/12 ,  G21F9/16 ,  C02F101/00 ,  C02F101/10 ,  C02F101/16

CPC classification number: C02F1/285 ,  C02F1/683 ,  C07D323/00 ,  G01N21/78 ,  G21F9/12 ,  G21F9/162 ,  C02F2101/006 ,  C02F2101/101 ,  C02F2101/163

Abstract: 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 and 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.

公开(公告)号：US11952301B2

公开(公告)日：2024-04-09

申请号：US17959253

申请日：2022-10-03

Applicant: Unique Equipment Solutions LLC

Inventor： Oleksandr Yuriiovych Mykytiuk

IPC: C02F9/00 ,  B01D37/02 ,  C02F1/00 ,  C02F1/24 ,  C02F1/28 ,  C02F1/46 ,  C02F1/461 ,  C02F1/463 ,  C02F1/465 ,  C02F1/469 ,  C02F1/72 ,  C02F11/10 ,  C02F101/00 ,  C02F101/20 ,  C02F101/32 ,  C02F103/32 ,  C02F103/36

CPC classification number: C02F9/00 ,  B01D37/02 ,  C02F1/004 ,  C02F1/24 ,  C02F1/283 ,  C02F1/285 ,  C02F1/4608 ,  C02F1/46109 ,  C02F1/463 ,  C02F1/465 ,  C02F1/4693 ,  C02F1/722 ,  C02F1/725 ,  C02F11/10 ,  C02F2001/46142 ,  C02F2101/006 ,  C02F2101/20 ,  C02F2101/32 ,  C02F2103/322 ,  C02F2103/365 ,  C02F2303/04 ,  C02F2303/16 ,  C02F2305/023

Abstract: The invention relates to the methods for sewage treatment contaminated by mechanical impurities, fats, proteins and other organic and inorganic compounds, and can be used for purification and water disinfection contaminated by heavy and radioactive metals, saturated or unsaturated fats, filtrate from landfills, meat processing plants, and/or oil and petroleum. The method includes flotation, electrocoagulation and filtration, and provides: mixing water with carbon-based sorbent; filtration of water and carbon sorbent on rubber-based hydrophobic sorbent; decomposition of organic substances accumulated on carbon and rubber sorbents; floatation with hydrogen peroxide; recovery active substance in hydrogen peroxide; reuse thereof; electrocoagulation with water saturation with oxygen and hydrogen, formed on indispensable carbon or metal electrodes based on the of aluminum, titanium, sodium, tin, copper, and other metals; water disinfection by electro-cavitation; generation of active substance based on the iron and titanium atoms; water filtration on the precoat filter; and filtering on activated carbon filter.

公开(公告)号：US20190177182A1

公开(公告)日：2019-06-13

申请号：US16154624

申请日：2018-10-08

Applicant: Northwestern University

Inventor： Phillip B. Messersmith ,  Haeshin Lee

IPC: C02F1/28 ,  B01J20/32 ,  B01J20/26 ,  B01J20/28 ,  B01J20/34

CPC classification number: C02F1/288 ,  B01J20/262 ,  B01J20/28016 ,  B01J20/28019 ,  B01J20/3204 ,  B01J20/3206 ,  B01J20/3208 ,  B01J20/3272 ,  B01J20/3293 ,  B01J20/345 ,  B01J20/3475 ,  C02F1/285 ,  C02F1/286 ,  C02F2101/006 ,  C02F2101/20 ,  C02F2101/22 ,  C02F2101/30 ,  C02F2101/38 ,  C02F2303/16

Abstract: A bio-inspired method for detoxifying contaminated water is disclosed. In the method, polydopamine, a mussel-inspired adhesive catecholamine was used as an adsorbent to effectively remove from contaminated water three major classes of toxic agents: heavy metal ions (e.g., Cr, Hg, Pb, Cu, and Cd), toxic organic species (e.g., 4-aminopyridine), and radioisotopes (e.g., Lutetium-177). Furthermore, the polydopamine adsorbent was regenerated by treatment with acid or hydrogen peroxide.

公开(公告)号：US20180354810A1

公开(公告)日：2018-12-13

申请号：US16004005

申请日：2018-06-08

Applicant: Marcos Vielma

Inventor： Marcos Vielma

IPC: C02F1/00 ,  G01N33/18 ,  C02F1/02 ,  C02F1/44 ,  C02F1/28 ,  B01D39/16

CPC classification number: C02F1/008 ,  B01D39/16 ,  C02F1/001 ,  C02F1/02 ,  C02F1/281 ,  C02F1/283 ,  C02F1/44 ,  C02F2101/006 ,  C02F2201/005 ,  C02F2209/005 ,  C02F2209/36 ,  C02F2301/043 ,  C02F2303/04 ,  C02F2307/14 ,  G01N33/1893

Abstract: A device, method, and processor-readable medium for water quality detection and diversion are disclosed. Water entering a building's plumbing system is tested for impurities before it routes for consumption. Impurities in the water could include bacteria, viruses, chemicals, toxins, fertilizers, minerals, biological weapons, radioactive materials, and radioactive waste. Sensors are located throughout the device to check for impurities in the water as it travels through the building's plumbing. Certain sensors decide how to route the water through various treatments within the device. Treatments to the impure water could include multi-level filtration and heating/cooling cycles for a prescribed time period to reduce impurities below an EPA-approved threshold. If the water still retains impurities after treatment in the device, the device can decide to divert the water out of the building to prevent consumption and illness to building occupants.

公开(公告)号：US20180319689A1

公开(公告)日：2018-11-08

申请号：US15980763

申请日：2018-05-16

Applicant: J.S. Meyer Engineering, P.C.

Inventor： Stanley M. MEYER

IPC: C02F9/00 ,  C01G45/02

CPC classification number: C02F9/00 ,  C01G45/02 ,  C01P2006/12 ,  C01P2006/16 ,  C02F1/283 ,  C02F1/32 ,  C02F1/385 ,  C02F1/42 ,  C02F1/5236 ,  C02F1/66 ,  C02F2101/006 ,  C02F2101/10 ,  C02F2103/10

Abstract: The present disclosure relates, according to some embodiments, to systems and methods for removal of contaminants from water including, but not limited to, industrial wastewater, brackish water, municipal wastewater, drinking waters, and particularly waters obtained from fracking operations. For example, a method for purifying a feed water composition may comprise (a) contacting the feed water composition with an activated manganese dioxide to form an activated manganese dioxide-containing feed water composition, where the activated manganese dioxide was formed by contacting soluble organics with soluble permanganate ions (MnO4−) at a pH from about 5.5 to about 14; (b) increasing the pH of the activated manganese dioxide-containing feed water composition sufficient to form a contaminant precipitate and an alkaline solution, wherein the contaminant precipitate comprises at least some of the metal; (d) removing the contaminant precipitate from the alkaline solution to form a treated water, wherein the treated water is purified relative to the feed water composition. The activated manganese dioxide material may be formed in situ by adding the soluble permanganate ions to the feed water composition where the permanganate will react with the contained proper organic or a proper organic added to the feed water composition, such as glycerin. In the alternative, the activated manganese dioxide can be formed in vitro by reacting the soluble permanganate ions with the proper organic, and the resulting activated manganese dioxide can thereafter be added to the feed water composition. Optionally, the pH of treated water can be lowered, for example to a pH suitable for transportation or for further industrial use, such as liquid road salt. In addition, either or both the feed water composition and the treated water can be exposed to activated carbon. Further yet, the treated water can be exposed to ultraviolet (UV) light. The treated water is then suitable for industrial purpose, such as liquid road salt.

公开(公告)号：US20180194643A1

公开(公告)日：2018-07-12

申请号：US15913263

申请日：2018-03-06

Applicant: WRT INTERNATIONAL LLC

Inventor： John E. Litz ,  Charles S. Williams

IPC: C02F1/00 ,  C02F1/42 ,  C02F101/00

CPC classification number: C02F1/008 ,  C02F1/281 ,  C02F1/42 ,  C02F2101/006

Abstract: Systems and methods are provided for the removal and disposal of radium form an aqueous medium. The systems and methods include the removal of radium from a source by contact with either natural or synthetic zeolite. The spent zeolite is monitored for radiation levels and replaced with fresh zeolite when the level of radioactivity reaches approximately 9,000 pCi/g. Spent zeolite is disposed of at a low-level radioactive waste site. A system for monitoring and maintaining radium removal and disposal by an off-site provided is also disclosed.

公开(公告)号：US09950939B2

公开(公告)日：2018-04-24

申请号：US14373778

申请日：2013-01-24

Applicant: Ohio University

Inventor： Jason Patrick Trembly

IPC: C02F9/00 ,  B01J3/00 ,  C02F1/28 ,  C02F1/32 ,  C02F1/52 ,  C02F1/66 ,  C02F1/78 ,  C02F5/02 ,  C02F11/08 ,  C02F101/00 ,  C02F101/20 ,  C02F103/10 ,  C02F1/20 ,  C02F1/72 ,  C02F101/10

CPC classification number: C02F9/00 ,  B01J3/008 ,  C02F1/20 ,  C02F1/28 ,  C02F1/281 ,  C02F1/32 ,  C02F1/52 ,  C02F1/5236 ,  C02F1/5245 ,  C02F1/66 ,  C02F1/725 ,  C02F1/78 ,  C02F5/02 ,  C02F11/086 ,  C02F2101/006 ,  C02F2101/10 ,  C02F2101/101 ,  C02F2101/203 ,  C02F2101/206 ,  C02F2103/10 ,  C02F2201/002 ,  C02F2301/066 ,  C02F2301/08 ,  C02F2303/04 ,  C02F2303/22

Abstract: Flow and product waste water from fracturing can be cleaned and reused utilizing a precipitation methodology incorporating, in part, a super critical reactor 30. Initially, the waste water is treated to remove solids, destroy bacteria, and precipitate out certain salts, such as barium, strontium, calcium, magnesium and iron. The waste water then can be passed through a radioactive material adsorption unit 20 to remove radium, as well as other radioactive materials, and then introduced into the super critical reactor 30. The super critical reactor is designed to bring the waste water to super critical conditions at a central portion of the reactor. This causes any dissolve solids, in particular sodium chloride and the like, to precipitate out of solution in the center 42 of the reactor 30 thereby avoiding scale formation on the walls of the reactor. A catalyst can be utilized to promote the breakdown of carbon bonds and promote the water/gas shift reaction. The effluent from the super critical reactor is then cooled and any formed gases separated from the remaining liquid. The remaining liquid can then be introduced back into the environment and the gases can be used to heat the super critical reactor.

公开(公告)号：US20180099854A1

公开(公告)日：2018-04-12

申请号：US15705480

申请日：2017-09-15

Applicant: LG Electronics Inc.

Inventor： Jisun Jung ,  Jaegeun Lee ,  Jintae Kim ,  Jinpyo Hong

IPC: B67D3/00 ,  F25B21/04 ,  C02F9/00

CPC classification number: B67D3/0009 ,  B67D3/0022 ,  C02F1/001 ,  C02F1/003 ,  C02F1/283 ,  C02F1/441 ,  C02F1/444 ,  C02F9/005 ,  C02F2101/006 ,  C02F2101/10 ,  C02F2303/02 ,  C02F2307/10 ,  F25B21/02 ,  F25B21/04 ,  F25B2321/023 ,  F25B2321/025 ,  F25B2321/0251

Abstract: A cold water generating apparatus according to the present disclosure includes a tank having an inlet port and an outlet port, a cooling module coupled to the tank to cool purified water introduced into the tank through the inlet port, and an internal passage unit formed inside the tank to guide the purified water from the inlet port to the outlet port, wherein a part of the purified water is phase-changed into ice within the tank by the cooling module, and another part of the purified water flows along the internal passage unit to be brought into contact with the ice so as to be discharged through the outlet port.

公开(公告)号：US20180071712A1

公开(公告)日：2018-03-15

申请号：US15560348

申请日：2016-03-22

Applicant: Clariant Catalysts (Japan) K.K. ,  Ebara Corporation

Inventor： Tadahito Nakashima ,  Hyun-Joong Kim ,  Takashi Sakuma ,  Makoto Komatsu ,  Takeshi Izumi

IPC: B01J20/06 ,  C02F1/28 ,  C01G45/02

CPC classification number: B01J20/06 ,  B01J20/28011 ,  B01J20/2803 ,  B01J20/28057 ,  C01B33/113 ,  C01F7/02 ,  C01G45/02 ,  C01G55/00 ,  C02F1/28 ,  C02F1/281 ,  C02F2101/006 ,  C02F2101/20 ,  C22B11/00 ,  G01N23/20075

Abstract: An adsorbent is provided to adsorb ruthenium from aqueous solution for recovery and/or reuse or removal of said ruthenium, and a method for purifying, for example, sea water and/or water containing sodium ions, magnesium ions, calcium ions, chlorine ions or other ions, polluted with a radioactive element, using said adsorbent.The ruthenium adsorbent includes manganese in the form of oxides thereof. The adsorbent can further include at least one additional transition metal element other than manganese, such as copper. The adsorbent soaked in water removes radioactive ruthenium or the like through adsorption, and thereby can purify, for example, sea water and/or water containing sodium ions, magnesium ions, calcium ions, chlorine ions or other ions.

公开(公告)号：US09896351B2

公开(公告)日：2018-02-20

申请号：US14153277

申请日：2014-01-13

Applicant: AVANTech, Inc.

Inventor： Tracy A. Barker ,  James L. Braun

IPC: C02F1/42 ,  G21F9/06 ,  G21F9/12 ,  G21F5/002 ,  G21F5/10 ,  G21F1/12 ,  G21F5/14 ,  G21F5/005 ,  C02F1/44 ,  C02F101/00

CPC classification number: C02F1/42 ,  C02F1/444 ,  C02F2101/006 ,  C02F2209/11 ,  G21F1/125 ,  G21F5/002 ,  G21F5/005 ,  G21F5/10 ,  G21F5/14 ,  G21F9/06 ,  G21F9/12

Abstract: A vessel for treatment of radioactive liquid. The vessel comprises a shielded housing defining an ion exchange chamber therein. The ion exchange chamber is configured to receive ion exchange media in its interior between an interior top surface and an interior bottom surface. The vessel further comprises an inlet diffuser disposed in the ion exchange chamber proximate the bottom surface and an outlet collection header disposed in the ion exchange chamber proximate the top surface. Also, the vessel comprises a process inlet in fluid communication with the inlet diffuser and a process outlet in fluid communication with the outlet collection header.