公开(公告)号：US11851355B2

公开(公告)日：2023-12-26

申请号：US17276413

申请日：2019-09-13

申请人： Richard Pressley ,  Justin Wippo ,  John H. Graham, Jr.

发明人： Richard Pressley ,  Justin Wippo ,  John H. Graham, Jr.

IPC分类号： C02F11/04 ,  C02F11/12 ,  C02F11/14 ,  C02F1/66 ,  C02F3/28 ,  C02F3/30 ,  C02F3/34 ,  C02F11/02 ,  C02F101/10

CPC分类号： C02F11/04 ,  C02F1/66 ,  C02F3/2866 ,  C02F3/308 ,  C02F3/343 ,  C02F11/02 ,  C02F11/12 ,  C02F11/14 ,  C02F3/302 ,  C02F2101/105 ,  C02F2209/005 ,  C02F2209/06 ,  C02F2209/08 ,  C02F2209/12 ,  C02F2209/14 ,  C02F2209/24 ,  C02F2301/106 ,  Y02E50/30 ,  Y02W10/20

摘要： Processes and system are provided for digesting biosolids in a multistage digestion system. The processes and system are well suited for producing Class A biosolids and biogas containing a high content of methane. Methods and systems are also provided for recovery of phosphorus from wastewater and biosolids.

公开(公告)号：US20230295029A1

公开(公告)日：2023-09-21

申请号：US18323721

申请日：2023-05-25

申请人： Marmon Industrial Water LLC

发明人： Carlos Grana

IPC分类号： C02F11/121 ,  C02F11/14 ,  B01D21/01 ,  B01D21/24 ,  B01D21/00 ,  B01F23/451 ,  B01F25/312

CPC分类号： C02F11/121 ,  C02F11/14 ,  B01D21/01 ,  B01D21/2416 ,  B01D21/0045 ,  B01F23/451 ,  B01F25/31243 ,  C02F2301/024 ,  B01F2101/305

摘要： A thickener for dewatering fluids having a vessel with a central well extending proximate a top portion of the vessel to a lower cone-shaped portion, a hindered settling zone, and a compressible sediment layer zone within the lower cone-shaped portion. Eductors housed in inlet wells have an inlet nozzle and a mixing tube to receive slurry to be treated and clear fluid to be mixed with the slurry. The fluid from the eductors is directed in counter circular paths via circular chambers situated proximate the inlet wells, such that fluid flowing in each direction collides and forms turbulence within the central well. Resultant fluid is directed into a lamella-type separator circumferentially located about a portion of the central well, having layered fluid paths directed radially outwards from said center longitudinal axis and upwards towards said vessel top portion through a conical, inclined fluid path, plate structure. The eductors are adjustable with a movable iris for limiting the amount of clear fluid exiting the eductor.

公开(公告)号：US20180327585A1

公开(公告)日：2018-11-15

申请号：US15776120

申请日：2016-11-14

申请人： BASF SE

发明人： Stephen John ADKINS ,  Holger MISSLITZ ,  Mitchell Louis CATLING

IPC分类号： C08L33/26 ,  C02F1/56 ,  C02F11/14

CPC分类号： C08L33/26 ,  C02F1/56 ,  C02F11/14 ,  C02F2103/10 ,  C08F220/06 ,  C08F220/56 ,  C08F220/58 ,  C08F222/04 ,  C08F2220/585 ,  C09K8/035

摘要： There is disclosed a multivalent cation containing copolymer derived from one or more ethylenically unsaturated acids. The copolymer has the following characteristics: (a) an intrinsic viscosity of at least about 3 dl/g when measured in 1 M Na Cl solution at 25° C.; (b) the copolymer is derived from a monomer mixture comprising an ethylenically unsaturated acid and at least one comonomer, the ethylenically unsaturated acid present in an amount in the range of from about % to about 65% by weight; and (c) a residual comonomer content is less than 1000 ppm when the comonomer is an acrylamide. The copolymer, inter alia, is useful as a flocculant for treating an aqueous slurry comprising particulate material, preferably tailings from a mining operation.

公开(公告)号：US20180327289A1

公开(公告)日：2018-11-15

申请号：US16040635

申请日：2018-07-20

申请人： Orege

发明人： Patrice Capeau ,  Michel Lopez ,  Pascal Gendrot

IPC分类号： C02F1/54 ,  C02F11/06 ,  C02F11/14 ,  B01D21/01

CPC分类号： C02F1/54 ,  B01D21/01 ,  B01D21/02 ,  B01D21/286 ,  C02F1/20 ,  C02F1/74 ,  C02F11/06 ,  C02F11/14 ,  C02F2209/40 ,  C02F2301/066 ,  C02F2303/06

摘要： The invention relates to a method and device for clarifying water by means treatment of the colloidal structures contained in a liquid and/or a sludge supplied in a continuous flow at a flow rate of QEB=VEB/hour. The flow is sprayed into a chamber under overpressure conditions in relation to atmospheric pressure, said chamber having a volume v

公开(公告)号：US20180264381A1

公开(公告)日：2018-09-20

申请号：US15544211

申请日：2016-01-28

申请人： S.P.C.M. SA

发明人： Morgan TIZZOTTI

IPC分类号： B01D21/01 ,  B03D3/06 ,  C02F1/56 ,  C02F11/14

CPC分类号： B01D21/01 ,  B03D3/02 ,  B03D3/06 ,  C02F1/56 ,  C02F11/14 ,  C02F2103/10 ,  C02F2103/12 ,  C08F216/1458 ,  C08F220/54 ,  C08F226/10 ,  C08F220/06

摘要： The invention relates to a method for treating an aqueous suspension of solid mineral particles arising from the extraction of ores, comprising the following steps: a soluble polymer is prepared in water, comprising: o at least one non-ionic monomer, selected from the group consisting of acrylamide; methacrylamide; N-monoderivatives of acrylamide; N-monoderivatives of methacrylamide; N,N-derivatives of acrylamide; N,N-derivatives of methacrylamide; acrylic esters; methacrylic esters; N-vinylformamide; and N-vinylpyrrolidone; o at least one anionic monomer representing between 10 and 70 mol %, selected from the group consisting of monomers having a carboxylic functional group and salts thereof; monomers having a sulphonic acid functional group and salts thereof; monomers having a phosphonic acid functional group and salts thereof; o at least one cationic monomer representing between 0.2 and 6 mol %, selected from the group consisting of diallyl dimethylammonium chloride, methacrylamidopropyltrimethylammonium chloride and acrylamidopropyltrimethylammonium chloride; adding said soluble polymer into the water having the aqueous suspension of solid particles. This method is particularly useful for treating residues resulting from the extraction of bituminous sand.

公开(公告)号：US20180161725A1

公开(公告)日：2018-06-14

申请号：US15575479

申请日：2015-05-21

申请人： Babcock & Wilcox Power Generation Group, Inc.

发明人： Michael KLIDAS ,  Joseph MITCHELL, III

IPC分类号： B01D53/78 ,  C02F1/12 ,  C02F1/16 ,  B01D1/16 ,  B01D1/18 ,  B01D53/73 ,  B01D53/14 ,  B01D53/18 ,  C02F11/12 ,  B01D53/86 ,  B01D53/75 ,  B01D53/50 ,  B01D53/80 ,  B01D53/96 ,  F23J15/00 ,  F23J15/02

CPC分类号： B01D53/78 ,  B01D1/16 ,  B01D1/18 ,  B01D53/1431 ,  B01D53/1481 ,  B01D53/18 ,  B01D53/50 ,  B01D53/507 ,  B01D53/73 ,  B01D53/75 ,  B01D53/80 ,  B01D53/8631 ,  B01D53/96 ,  B01D2251/404 ,  B01D2252/10 ,  B01D2252/60 ,  B01D2257/302 ,  B01D2257/80 ,  B01D2258/0233 ,  B01D2258/0283 ,  B01D2259/124 ,  B01D2259/126 ,  B01D2259/65 ,  C02F1/12 ,  C02F1/16 ,  C02F1/283 ,  C02F1/52 ,  C02F11/12 ,  C02F11/14 ,  C02F2103/18 ,  C02F2303/06 ,  F23J15/006 ,  F23J15/02 ,  F23J2215/10 ,  F23J2215/20 ,  F23J2219/10 ,  F23J2219/20 ,  F23J2219/40

摘要： The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants, etc.) and, in particular to a new and useful method and apparatus for reducing and/or eliminating various liquid discharges from one or more emission control equipment devices (e.g., one or more wet flue gas desulfurization (WFGD) units). In another embodiment, the method and apparatus of the present invention is designed to reduce and/or eliminate the amount of liquid waste that is discharged from a WFGD unit by subjecting the WFGD liquid waste to one or more drying processes, one or more spray dryer (or spray dry) absorber processes, and/or one or more spray dryer (or spray dry) evaporation processes.

公开(公告)号：US20180127290A1

公开(公告)日：2018-05-10

申请号：US15569843

申请日：2016-04-27

申请人： BASF SE

发明人： Lewis Utting ,  Stephen John Adkins

IPC分类号： C02F1/56 ,  B01D21/01 ,  C02F11/06 ,  C02F11/14

CPC分类号： C02F1/56 ,  B01D21/01 ,  C02F1/722 ,  C02F1/78 ,  C02F11/06 ,  C02F11/14 ,  C02F2103/10 ,  C10G1/00 ,  C10G1/047 ,  C10G33/06 ,  C10G2300/1033 ,  C10G2300/208

摘要： A process of separating a suspension of particulate solids dispersed in an aqueous liquid into a liquid portion and a solids portion by transferring the suspension by flowing it to a deposition area, subjecting the suspension to a treatment system during the transfer, and at the deposition area allowing the suspension to separate into the liquid portion and the solids portion, in which the treatment system contains (a) a water soluble polymer; and (b) a chemical agent selected from at least one of an oxidising agent, a reducing agent, and/or a free radical agent. The treatment system enables a solids portion to be deposited and formed by an initial rigidification of the solids accompanied by an initial release of fluid, followed by a further consolidation of the rigidified solids with the further release of liquid.

公开(公告)号：US09963728B2

公开(公告)日：2018-05-08

申请号：US14235985

申请日：2012-07-27

申请人： Atsushi Minamino ,  Hiroyuki Kurihara ,  Katsushige Yamada ,  Junpei Kishimoto

发明人： Atsushi Minamino ,  Hiroyuki Kurihara ,  Katsushige Yamada ,  Junpei Kishimoto

IPC分类号： C12P19/14 ,  B01J20/24 ,  B01D24/00 ,  B01D24/02 ,  C08H8/00 ,  C08L1/02 ,  B01J20/28 ,  C12H1/07 ,  C12P19/02 ,  C08B37/00 ,  C08L5/14 ,  B01D61/04 ,  C02F11/12 ,  C02F11/14

CPC分类号： C12P19/14 ,  B01D61/04 ,  B01J20/24 ,  B01J20/28038 ,  B01J2220/4831 ,  C02F11/122 ,  C02F11/14 ,  C08B37/0057 ,  C08H8/00 ,  C08L1/02 ,  C08L5/14 ,  C12H1/063 ,  C12P19/02

摘要： A method of producing a filter aid includes: (A) obtaining a pretreated biomass by pulverization treatment and/or thermochemical treatment of a cellulose-containing biomass; (B) treating the pretreated biomass obtained in (A) with cellulase to obtain a cellulase-treated product; and (C) obtaining a solid content of the cellulase-treated product of (B).

公开(公告)号：US20180118599A1

公开(公告)日：2018-05-03

申请号：US15795934

申请日：2017-10-27

申请人： Richard W. Christy

发明人： Richard W. Christy

IPC分类号： C02F9/00

CPC分类号： C02F9/00 ,  C02F11/02 ,  C02F11/127 ,  C02F11/13 ,  C02F11/14 ,  C02F11/185 ,  C02F2301/046 ,  C02F2303/02 ,  C02F2303/04 ,  C02F2303/24

摘要： An apparatus, method and system is provided for treating sewage sludge by dewatering the sewage sludge, heating the sewage sludge being treated to destroy pathogens, and then reducing volatile solids in the sewage sludge being treated through biochemical decomposition to produce a treated biosolids product that meets government regulations for pathogen reduction and vector attraction reduction.

公开(公告)号：US20180072601A1

公开(公告)日：2018-03-15

申请号：US15702545

申请日：2017-09-12

申请人： Vermeer Manufacturing Company

发明人： Brandon Storm ,  Nathan Meyer ,  Markus Terry ,  Gregory Anderson

IPC分类号： C02F11/12 ,  F26B17/02 ,  B65G23/44 ,  B65G23/06 ,  B65G15/30 ,  B01D33/056 ,  B01D33/46

CPC分类号： B65G67/24 ,  B01D33/0346 ,  B01D33/04 ,  B01D2201/089 ,  B65D90/54 ,  B65G15/30 ,  B65G65/42 ,  B65G69/287 ,  C02F11/121 ,  C02F11/123 ,  C02F11/14 ,  C02F2201/008 ,  C02F2301/08 ,  F26B17/023 ,  F26B17/04 ,  Y02W30/32

摘要： Separation units for dewatering slurries such as flat-wire belt conveyors are disclosed. In some embodiments, the separation unit includes a tension pulley for maintaining tension in the flat-wire conveyor belt. The flat-wire conveyor belt is looped around the head pulley, tail pulley and tension pulley. In some embodiments, the head pulley and/or tail pulley include teeth for removing material from the mesh openings of the flat-wire belt conveyor.