公开(公告)号：US11123670B2

公开(公告)日：2021-09-21

申请号：US16720428

申请日：2019-12-19

Applicant: NANJING UNIVERSITY

Inventor： RuiHua Li ,  SiWen Shen ,  LiSong Zhou ,  LiYu Luo ,  MengSha Guan ,  Wei Wang ,  ZhiBin Ge

IPC: B01D39/20 ,  C02F3/28 ,  C02F3/30 ,  C02F3/34 ,  C02F101/10 ,  C02F101/16 ,  C02F103/06 ,  C02F3/00

Abstract: The present invention discloses a method for preparing a simultaneous nitrogen and phosphorus removal lightweight material and the use thereof, and belongs to the technical field of environmental functional materials and sewage treatment. In the present invention, sulfur and an iron-based component are thoroughly melted and dispersed to obtain a molten mixture, where the iron-based component is a mixture of iron sulfides with carbonates of calcium and magnesium; and the above molten mixture is subjected to a foaming treatment to form the simultaneous nitrogen and phosphorus removal lightweight material. The simultaneous nitrogen and phosphorus removal lightweight material of the present invention has characteristics of high porosity, a large specific surface area, a light weight, and a high reaction activity. The resultant lightweight material, used as a microbial carrier and an electron donor for a biochemical reaction, is applied to a reactor such as a fixed bed or fluidized bed for sewage treatment, with the advantages of a good microbial attachment performance, a high denitrification rate and a good phosphorus removal effect.

公开(公告)号：US11111164B2

公开(公告)日：2021-09-07

申请号：US16522940

申请日：2019-07-26

Applicant: THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIVERSITY

Inventor： Sourjya Bhattacharjee ,  Subhasis Ghoshal

IPC: B09C1/00 ,  B09C1/08 ,  C01G1/12 ,  C01G49/12 ,  C02F1/70 ,  C02F103/06 ,  C02F101/36

Abstract: The present disclosure relates to sulfur-containing zerovalent iron nanoparticles and the use of same for transforming chlorinated solvent pollutants and which may therefore be useful as water treatment technology for restoration of groundwater resources contaminated with toxic, chlorinated solvent pollutants.

公开(公告)号：US11097140B2

公开(公告)日：2021-08-24

申请号：US14732437

申请日：2015-06-05

Applicant: BOLDWATER USA, LP

Inventor： Mark Knippa

IPC: A62D3/02 ,  B09C1/10 ,  C02F3/34 ,  C02F101/34 ,  C02F101/10 ,  C02F103/06 ,  C02F101/32 ,  C02F103/10

Abstract: Methods to remediate a contaminated material are provided. In one embodiment, a biocatalyst that digests hydrocarbon contaminants is activated with a nutrient and the activated biocatalyst is combined with the contaminated material and water to form a mixture. The mixture is incubated for a period of time, and the level of contaminant in the mixture is determined to ascertain whether to incubate further, add additional biocatalyst mix, or provide the remediated material for further processing. In one embodiment, the remediated material is provided for reuse or recycling with a second material, such as a construction aggregate. The method is particularly suited for remediation of drill cuttings, mine tailings, hydrocarbon-contaminated soil, and the like.

公开(公告)号：US11084741B2

公开(公告)日：2021-08-10

申请号：US17119367

申请日：2020-12-11

Applicant: Fred A. Batkin, III

Inventor： Fred A. Batkin, III

IPC: C02F1/48 ,  C02F1/72 ,  B01F3/04 ,  B01F5/04 ,  C02F103/06

Abstract: A magnetic fluid treatment system chamber for treating water for agricultural and other uses includes a fluid inlet and a fluid outlet opposite the fluid inlet. A fluid flow path runs from the fluid inlet to the fluid outlet. A plurality of ferrous metal rods is located circumferentially-spaced about the flow path. The ferrous metal rods are parallel to the flow path. A plurality of axially oriented magnets each has a north face and a south face. Each of the faces of the axially oriented magnets abuts one of the ferrous metal rods.

公开(公告)号：US11077476B2

公开(公告)日：2021-08-03

申请号：US15988284

申请日：2018-05-24

Applicant: Benjamin V. Mork

Inventor： Benjamin V. Mork

IPC: B09C1/00 ,  B09C1/10 ,  B09C1/08 ,  C02F3/34 ,  C02F1/68 ,  C02F103/06 ,  C02F1/28

Abstract: Groundwater, slurry, or soil treatment or remediation compositions and methods of both production and use are described that include: at least one colloidal remediation chemical, at least one polysaccharide stabilizer, and at least one enzyme.

公开(公告)号：US11000844B2

公开(公告)日：2021-05-11

申请号：US16379580

申请日：2019-04-09

Applicant: TechSource, Inc.

Inventor： George M. Murray

IPC: G01N21/64 ,  B01J39/20 ,  B01J45/00 ,  B01D15/36 ,  C02F1/42 ,  B01D15/10 ,  C22B3/00 ,  C22B3/04 ,  C22B3/42 ,  B01J41/14 ,  B01J41/05 ,  C02F103/10 ,  C02F103/00 ,  C02F1/28 ,  C02F101/12 ,  C02F101/20 ,  C02F103/06 ,  C02F103/36

Abstract: Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source.

公开(公告)号：US11000822B2

公开(公告)日：2021-05-11

申请号：US16882143

申请日：2020-05-22

Applicant: Specialty Minerals (Michigan) Inc.

Inventor： Michael Donovan

IPC: B01J20/12 ,  C02F1/28 ,  B01J20/32 ,  C02F101/36 ,  C02F103/06

Abstract: A method of sorbing a PFAS compound from a contaminated environment can include admixing a modified clay sorbent with the environment. The modified clay can include a clay intercalated with a blend of mono-quaternary amine compound and di-quaternary amine compound.

公开(公告)号：US10995022B2

公开(公告)日：2021-05-04

申请号：US16490028

申请日：2018-03-12

Applicant: The Texas A&M University System

Inventor： Yongheng Huang

IPC: C02F1/52 ,  C02F1/70 ,  C02F101/10 ,  C02F101/12 ,  C02F101/20 ,  C02F101/22 ,  C02F103/00 ,  C02F103/10 ,  C02F103/18 ,  C02F103/36 ,  C02F101/16 ,  C02F103/06

Abstract: Methods for reducing the concentration of one or more contaminants in water using zero-valent iron media. In the method, a mixed aluminum (III) and iron (II) salt solution is added to water containing one or more contaminants that is in contact with a zero-valent iron media that comprises (a) a reactive solid comprising zero-valent iron and one or more iron oxide minerals in contact therewith and (b) magnetite to provide an aqueous reaction medium. The aqueous reaction medium is contacted with the zero-valent iron media for a period of time sufficient to reduce the concentration of one or more of the contaminants.

公开(公告)号：US10851006B2

公开(公告)日：2020-12-01

申请号：US16301090

申请日：2017-05-19

Applicant: Aquarden Technologies ApS

Inventor： Zhuoyan Cai

IPC: B01D1/00 ,  B01D3/02 ,  B01D3/04 ,  B01J3/00 ,  C02F1/00 ,  C02F1/04 ,  C02F1/44 ,  C02F1/72 ,  C02F11/08 ,  B01J19/00 ,  C02F1/42 ,  C02F101/16 ,  C02F101/20 ,  C02F101/30 ,  C02F103/06

Abstract: The present invention relates to supercritical water oxidation reactor adapted to contain inside the reactor an aqueous fluid below and above its supercritical state, said fluid comprising organic and/or inorganic material and a method of controlling such a reactor.

公开(公告)号：US10752521B2

公开(公告)日：2020-08-25

申请号：US16307519

申请日：2017-06-09

Applicant: EMINUS, LLC

Inventor： Christopher Nelson

IPC: C02F1/24 ,  B09C1/08 ,  B09C1/00 ,  C02F1/78 ,  B03D1/14 ,  B03D1/08 ,  B03D1/24 ,  C02F101/36 ,  C02F103/06 ,  C02F1/02 ,  C02F101/30

Abstract: A method for the decontamination of water containing one or more PFAS contaminants includes injecting a gas through a diffuser and into the water so as to form a plurality of bubbles in the water, the one or more PFAS contaminants accumulating on the plurality of bubbles. The plurality of bubbles is allowed to rise, forming a foam at the surface of the water. The resulting foam is then collected and transported away from the surface of the water, where it condenses into a liquid and can be treated and/or disposed of.