公开(公告)号：US20230405546A1

公开(公告)日：2023-12-21

申请号：US18198160

申请日：2023-05-16

Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY

Inventor： Dibyendu Sarkar ,  Viravid Na Nagara ,  Rupali Datta

IPC: B01J20/02 ,  B01D39/20 ,  B01D39/16 ,  C02F1/28 ,  B01J20/24 ,  B01J20/30

CPC classification number: B01J20/0248 ,  B01D39/2031 ,  B01D39/1646 ,  C02F1/288 ,  B01J20/24 ,  C02F1/281 ,  B01J20/3021 ,  C02F1/286 ,  B01D2239/0283 ,  B01D2239/0407 ,  B01D2239/10 ,  B01J20/3028

Abstract: Filter media for treating contaminated water is produced from aluminum-based water treatment residuals (Al-WTR) commonly produced as a byproduct of water treatment plants. By processing the residuals into small granules, a superior green sorbent product is obtained with the functionality to adsorb contaminants, such as metals and certain nutrients in water. Biopolymers can be incorporated into the filter media to further enhance functionality and hydraulic characters.

公开(公告)号：US11834360B2

公开(公告)日：2023-12-05

申请号：US18021184

申请日：2021-01-15

Applicant: SICHUAN UNIVERSITY

Inventor： Bo Lai ,  Heng Zhang ,  Yang Liu ,  Zhaokun Xiong ,  Chuanshu He

IPC: C02F9/00 ,  B01D21/02 ,  C02F1/52 ,  C02F1/66 ,  C02F1/72 ,  C02F3/30 ,  C02F1/28 ,  C02F1/56 ,  C02F1/74 ,  C02F11/122 ,  C02F1/00 ,  C02F101/30 ,  C02F103/34 ,  C02F103/36

CPC classification number: C02F9/00 ,  B01D21/02 ,  C02F1/5281 ,  C02F1/66 ,  C02F1/722 ,  C02F3/30 ,  C02F1/281 ,  C02F1/5236 ,  C02F1/56 ,  C02F1/74 ,  C02F11/122 ,  C02F2001/007 ,  C02F2101/306 ,  C02F2101/308 ,  C02F2103/343 ,  C02F2103/36 ,  C02F2201/002 ,  C02F2209/42 ,  C02F2209/44 ,  C02F2301/026 ,  C02F2301/046 ,  C02F2301/08 ,  C02F2305/026

Abstract: An integrated device and method for treating toxic and refractory wastewater are provided. The integrated device includes an adjusting pool, a first-stage reactor, a second-stage reactor, a third-stage reactor, a coagulation sedimentation pool, and a biochemical reaction pool that are sequentially connected in series, and further includes an aeration blower. Each of the first-stage reactor and the third-stage reactor is an advanced oxidation reactor, and the second-stage reactor is a Fenton reactor. The coagulation sedimentation pool includes 2 to 4 stages, and each stage of the coagulation sedimentation pool includes a coagulation tank, a primary sedimentation tank, and a secondary sedimentation tank that are connected in series. The biochemical reaction pool includes an anoxic tank, an aerobic tank, a settling tank, and a clean water tank that are connected in series. The wastewater treatment method combines the integrated device for treating toxic and refractory wastewater with reasonable process parameters.

公开(公告)号：US20230365434A1

公开(公告)日：2023-11-16

申请号：US18141687

申请日：2023-05-01

Applicant: Guangzhou University

Inventor： Weiquan CAI ,  Pei LIU

IPC: C02F1/28 ,  B01J20/20 ,  B01J20/02 ,  B01J20/28 ,  B01J20/30

CPC classification number: C02F1/288 ,  C02F1/281 ,  B01J20/20 ,  B01J20/0222 ,  B01J20/0214 ,  B01J20/0218 ,  B01J20/28019 ,  B01J20/3078 ,  B01J20/3071 ,  C02F2101/22

Abstract: Disclosed are a transition metal-doped carbon microsphere, a preparation method therefor and an application thereof. The transition metal-doped carbon sphere has a uniform solid porous structure, and the transition metal is uniformly distributed inside the carbon sphere. The preparation method comprises that a carbon microsphere uniformly doped with manganese, vanadium, molybdenum and tungsten is prepared by means of a one-step hydrothermal method, is mixed with potassium oxalate, and is roasted in a protective atmosphere to obtain an activated metal-doped carbon sphere. The doped transition metal elements remain uniformly dispersed after being roasted, and do not agglomerate. The transition metal-doped carbon microsphere obtained has the following characteristics: it exhibits good adsorption properties for heavy metal ions Cr(VI), with the maximum adsorption amount being 660.7 mg/g; it can achieve advanced removal of Cr(VI) from the wastewater of which the initial Cr(VI) concentration is lower than 200 mg/L, with the residual Cr(VI) concentration after adsorption being lower than 0.05 mg/L; and it shows good application prospect in the treatment of wastewater containing heavy metal.

公开(公告)号：US11802059B2

公开(公告)日：2023-10-31

申请号：US16910899

申请日：2020-06-24

Applicant: Sony Corporation

Inventor： Shun Yamanoi ,  Hironori Iida ,  Machiko Minatoya ,  Seiichiro Tabata ,  Shinichiro Yamada

IPC: C02F1/28 ,  B01D61/04 ,  B01D61/08 ,  B01J20/28 ,  B01J20/20 ,  C01B32/05 ,  C02F1/00 ,  C02F1/42 ,  C02F101/20 ,  C02F101/30 ,  C02F1/44 ,  C02F1/68 ,  C02F101/36 ,  C02F101/12

CPC classification number: C02F1/288 ,  B01D61/04 ,  B01D61/08 ,  B01J20/20 ,  B01J20/2803 ,  B01J20/28004 ,  B01J20/28011 ,  B01J20/28035 ,  B01J20/28057 ,  B01J20/28069 ,  B01J20/28083 ,  C01B32/05 ,  C02F1/003 ,  C02F1/281 ,  B01D2311/04 ,  B01D2313/90 ,  C01P2004/60 ,  C01P2006/12 ,  C02F1/283 ,  C02F1/285 ,  C02F1/286 ,  C02F1/42 ,  C02F1/441 ,  C02F1/444 ,  C02F1/68 ,  C02F2101/12 ,  C02F2101/20 ,  C02F2101/305 ,  C02F2101/36 ,  C02F2201/006 ,  C02F2303/185 ,  C02F2307/02 ,  C02F2307/04 ,  C02F2307/06 ,  C02F2307/10 ,  B01D2311/04 ,  B01D2311/2649

Abstract: A porous carbon material having a value of a specific surface area by a nitrogen BET method of 1×102 m2/g or more, a volume of fine pores by a BJH method of 0.3 cm3/g or more, and a particle size of 75 μm or more, alternatively, a porous carbon material having a value of a specific surface area by a nitrogen BET method of 1×102 m2/g or more, a total of volumes of fine pores having a diameter of from 1×10−9 m to 5×10−7 m, obtained by a non-localized density functional theory method, of 1.0 cm3/g or more, and a particle size of 75 μm or more.

公开(公告)号：US11795068B2

公开(公告)日：2023-10-24

申请号：US16473931

申请日：2017-12-27

Applicant: JDC Corporation

Inventor： Mutsuhiro Ohno ,  Yutaka Kobayashi ,  Takeo Asakura

IPC: C02F1/28 ,  C02F101/10 ,  C02F101/20

CPC classification number: C02F1/288 ,  C02F1/281 ,  C02F2101/103 ,  C02F2101/203 ,  C02F2101/206

Abstract: A water purification apparatus and a water purification method capable of effectively using a layered double hydroxide and easily being applied are described. A water purification apparatus for removing a polluted substance from polluted water includes a solid-liquid separator that separates the polluted water and a solid material from each other, and a polluted substance remover that removes, by a layered double hydroxide, the polluted substance contained in the polluted water separated by the solid-liquid separator.

公开(公告)号：US11745160B2

公开(公告)日：2023-09-05

申请号：US17968960

申请日：2022-10-19

Applicant: Guangdong University of Technology

Inventor： Yun Chen ,  Yuanhui Guo ,  Bin Xie ,  Lu Yan ,  Maoxiang Hou ,  Xin Chen

IPC: B01J20/02 ,  B01J20/20 ,  B01J20/28 ,  B01J20/30 ,  B01J20/32 ,  C23C14/02 ,  C23C14/08 ,  C23C14/18 ,  C23C14/35 ,  C02F1/28 ,  C02F1/72 ,  C02F101/20 ,  C02F101/32

CPC classification number: B01J20/0229 ,  B01J20/205 ,  B01J20/28009 ,  B01J20/3078 ,  B01J20/3204 ,  B01J20/324 ,  B01J20/3214 ,  C23C14/022 ,  C23C14/08 ,  C23C14/185 ,  C23C14/35 ,  C02F1/281 ,  C02F1/283 ,  C02F1/288 ,  C02F1/725 ,  C02F2101/20 ,  C02F2101/327 ,  C02F2305/08

Abstract: A method of fabricating a magnetically-controlled graphene-based micro-/nano-motor includes: (a) mixing FeCl3 crystal powder with deionized water to obtain a FeCl3 solution; (b) completely immersing a carbon-based microsphere in the FeCl3 solution; transferring the carbon-based microsphere from the FeCl3 solution followed by heating to allow crystallization of FeCl3 on the surface of the carbon-based microsphere to obtain a FeCl3-carbon-based microsphere; (c) heating the FeCl3-carbon-based microsphere in a vacuum chamber until there is no moisture in the vacuum chamber; continuously removing gas in the vacuum chamber and introducing oxygen; and treating the FeCl3-carbon-based microsphere with a laser in an oxygen-enriched environment to obtain the magnetically controlled graphene-based micro-/nano-motor. A magnetically-controlled graphene-based micro-/nano-motor is further provided.

公开(公告)号：US11726015B2

公开(公告)日：2023-08-15

申请号：US17392326

申请日：2021-08-03

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： Emily Hanhauser ,  Michael Bono ,  Anastasios John Hart ,  Rohit Karnik ,  Xiaoyuan Ren ,  Chintan Vaishnav

IPC: G01N1/40 ,  G01N1/10 ,  B01L3/00 ,  G01N1/12 ,  G01N1/20 ,  B01D15/18 ,  B01J20/28 ,  B01J20/26 ,  B01J20/34 ,  C02F1/28 ,  C02F1/42 ,  C12Q1/6806 ,  G01N1/00 ,  C02F101/10 ,  C02F101/20

CPC classification number: G01N1/405 ,  B01D15/1892 ,  B01J20/264 ,  B01J20/2805 ,  B01J20/3425 ,  B01L3/5023 ,  C02F1/281 ,  C02F1/285 ,  C02F1/42 ,  C12Q1/6806 ,  G01N1/10 ,  G01N1/12 ,  G01N1/20 ,  G01N1/4055 ,  B01J2220/00 ,  B01L2200/028 ,  B01L2200/0631 ,  B01L2200/185 ,  B01L2300/069 ,  B01L2300/0627 ,  B01L2300/12 ,  C02F2101/103 ,  C02F2101/20 ,  C02F2303/16 ,  G01N2001/005 ,  G01N2001/4061

Abstract: A device for collecting contaminants from water samples is provided. The device includes a solid sorbent that collects and stores the contaminants from water samples. The solid sorbent is configured to allow for the preservation of the stored contaminants. The concentrations of the contaminants in the water samples are determined via analysis of the solid sorbent or via elution of the stored contaminants from the sorbent and analysis of the eluate solution.

公开(公告)号：US20230241575A1

公开(公告)日：2023-08-03

申请号：US18159769

申请日：2023-01-26

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Ni-Bin Chang ,  Debra Reinhart ,  A H M Anwar Sadmani

IPC: B01J20/02 ,  B01J20/12 ,  B01J20/10 ,  C02F1/28

CPC classification number: B01J20/0229 ,  B01J20/12 ,  B01J20/103 ,  C02F1/288 ,  C02F1/281 ,  C02F2101/36

Abstract: A synergistic composition can be used to treat water containing nitrogen compounds and phosphorus compounds. The synergistic composition includes iron filings, clay particles, aluminum particles, and sand particles. The iron filings, clay particles, and aluminum particles act synergistically to remove nitrogen compounds and phosphorus compounds from water. Specifically, the clay particles attract the nitrogen compounds and the phosphorus compounds to be absorbed onto a surface of the iron filings and the clay particles. The aluminum particles react with the nitrogen compounds via an oxidation reaction to form ammonia compounds, and react with the phosphorus compounds to produce aluminum phosphate. As such, the synergistic relationship between the iron filings, clay particles, and aluminum particles remove nitrogen and phosphorus compounds from water and recover the compounds in usable forms, namely, ammonia and aluminum phosphate.

公开(公告)号：US11713256B2

公开(公告)日：2023-08-01

申请号：US16343298

申请日：2017-10-19

Applicant: H2nanO Inc.

Inventor： Timothy Michael Carter Leshuk ,  Zachary William Young ,  Frank Gu

IPC: C02F1/28 ,  B01J20/06 ,  B01J20/10 ,  B01J20/20 ,  B01J20/28 ,  B01J20/34 ,  B01J37/02 ,  C02F1/32 ,  C02F1/72 ,  C02F1/00 ,  C02F1/44 ,  C02F1/467 ,  C02F1/52 ,  C02F103/00 ,  C02F1/48

CPC classification number: C02F1/288 ,  B01J20/06 ,  B01J20/103 ,  B01J20/20 ,  B01J20/2803 ,  B01J20/28009 ,  B01J20/28026 ,  B01J20/28035 ,  B01J20/3433 ,  B01J20/3441 ,  B01J20/3475 ,  B01J37/0215 ,  C02F1/32 ,  C02F1/725 ,  C02F1/001 ,  C02F1/281 ,  C02F1/283 ,  C02F1/44 ,  C02F1/4672 ,  C02F1/488 ,  C02F1/52 ,  C02F2103/007 ,  C02F2303/16 ,  C02F2303/18 ,  C02F2305/08 ,  C02F2305/10 ,  Y02A20/212

Abstract: A composite material for use in water treatment. The composite material includes a porous matrix including a resin capable of retaining a catalyst and magnetic material therein, and includes a density regulating portion disposed therein. The catalyst is capable of facilitating a chemical reaction involving a contaminants in the water. The magnetic material and density regulating portion can be used to separate the composite material from treated water. Systems and methods of use involving passive water treatment, continuous water treatment, solar light exposure, UV light exposure, and electrochemical cells, employing photochemical, electrochemical, and photoelectrochemical reactions are described. Methods of manufacture are described.

公开(公告)号：US20230202877A1

公开(公告)日：2023-06-29

申请号：US18117278

申请日：2023-03-03

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Tawfik Abdo Saleh AWADH ,  Nadeem BAIG

IPC: C02F1/28 ,  B01J20/26 ,  B01J20/20 ,  B01J20/28 ,  B01J20/32

CPC classification number: C02F1/288 ,  B01J20/261 ,  B01J20/20 ,  B01J20/28045 ,  B01J20/28085 ,  B01J20/28083 ,  B01J20/28059 ,  B01J20/3212 ,  B01J20/3225 ,  B01J20/324 ,  B01J20/327 ,  B01J20/262 ,  C02F2303/16 ,  C02F1/281 ,  C02F1/285 ,  C02F2101/32

Abstract: A composite material of polyurethane foam having a layer of reduced graphene oxide and polystyrene is described. This composite material may be made by contacting a polyurethane foam with a suspension of reduced graphene oxide, drying, and then irradiating in the presence of styrene vapor. The composite material has a hydrophobic surface that may be exploited for separating a nonpolar phase, such as oil, from an aqueous solution.