Abstract: A method or process for treating wastewater containing high organics, silica, boron, hardness, and suspended and dissolved solids. The method includes degasifying the wastewater for the removal of dissolved gases and thereafter chemically softening the wastewater. After the chemical softening step, the wastewater is directed through a media filter or membrane which removes additional solids and precipitants. Thereafter the wastewater is directed through a sodium ion exchange that further softens the wastewater. The effluent from the ion exchange is directed through a cartridge filter and the effluent from the cartridge filter is directed through one or more reverse osmosis units. At a selected phase of the process, prior to the wastewater reaching the reverse osmosis unit or units, the pH of the wastewater is raised and maintained such that the pH of the wastewater reaching a reverse osmosis unit is at a pH greater than 10.5.
Type:
Grant
Filed:
July 11, 2018
Date of Patent:
July 28, 2020
Assignee:
Veolia Water Solutions & Technologies Support
Abstract: The present invention relates to a method for treating industrial water containing organic matter, said method comprising: a step of physical separation producing wastes and an effluent; a step of adsorption of at least one part of said organic matter present in said effluent on at least one adsorbent resin chosen from the group comprising the non-ionic cross-linked resins and the microporous carbon resins; a step of reverse osmosis filtration downstream from said adsorption step.
Type:
Grant
Filed:
April 8, 2014
Date of Patent:
June 2, 2020
Assignee:
Veolia Water Solutions & Technologies Support
Abstract: The invention pertains to a method (200, 300, 400) of at least partly removing at least one micropollutant from wastewater (104) comprising carbogenous compounds and at least one micropollutant.
Type:
Grant
Filed:
March 7, 2017
Date of Patent:
May 26, 2020
Assignee:
Veolia Water Solutions & Technologies Support
Abstract: The invention relates to a water treatment plant which comprises means (38) for supplying the water to be treated, means (31) for supplying coagulant reagent (21), a flocculation-decantation device (1) which has means (32) for dispensing the flocculant reagent, means (33) for distributing ballast, means (39d) for extracting decantation sludge and means (9) for discharging water that has been treated, a line (8) for supplying coagulated water to the flocculation-decantation device (1), means (24) for separating the ballast contained in the ballasted sludge followed by means (36) for recycling the ballast back into said flocculation-decantation device (1), characterised in that said device (1) comprises an outer tank (2) that has a first hopper (4), and at least one inner tank (3) that has a second hopper (5) and is arranged inside said outer tank (2); the inner tank (3) receiving the flocculant and the ballast and comprising stirring means (10), wherein a peripheral space is disposed between the inner tank (3)
Type:
Application
Filed:
June 25, 2018
Publication date:
May 21, 2020
Applicant:
Veolia Water Solutions & Technologies Support
Inventors:
Abdelkader GAID, Hervé PAILLARD, Philippe SAUVIGNET
Abstract: The invention relates to a water treatment plant comprising: means (1) for supplying water for treatment, wherein said water has been coagulated previously, a flocculation-decantation device (11) having means (5) for dispensing at least one flocculant reagent, means (6) for dispensing at least one ballast, means (20d) for extracting decantation sludge, means (9) for discharging the treated water, means (14) for separating said ballast contained in the ballasted sludge, and means (8) for recycling the ballast that has been cleaned in this manner back into the flocculation-decantation device (11), characterised in that: said flocculation-decantation device (11) has a single tank (12) in the lower portion of which a stirring mechanism (13) is arranged; wherein said single tank (2) comprises slats (10) in its upper portion; and said slats are separated from the stirring mechanism (13) by a distance “d” which is between approximately 0.5 metres and approximately 3 metres.
Type:
Application
Filed:
June 25, 2018
Publication date:
April 30, 2020
Applicant:
Veolia Water Solutions & Technologies Support
Inventors:
Abdelkader GAID, Hervé PAILLARD, Philippe SAUVIGNET
Abstract: A carrier element (1; 10; 20) for growth of biofilm thereon is designed for free-flowing in liquid to be purified and has surfaces (3; 13) for biofilm growth which are protected from the abrasion from other carrier elements or surfaces in a container containing the liquid to be purified by ridges (4; 12) having a height corresponding to a desired thickness of a biofilm intended to grow on the protected surfaces (3; 13). The ratio between the surfaces (3; 13) for biofilm growth and the area of the ridges ranges from 1:1 to 1:20.
Type:
Grant
Filed:
November 28, 2014
Date of Patent:
April 21, 2020
Assignee:
Veolia Water Solutions & Technologies Support
Abstract: The present invention concerns a nozzle for injecting pressurized water containing a dissolved gas, said nozzle comprising: a cylindrical intake chamber (20) for said water; a cylindrical expansion chamber (30) comprising a part (301) communicating with said intake chamber (20) by an orifice (401) and an outlet; a diffusion chamber (60) of truncated conical section communicating with the outlet of said expansion chamber (30) and widening out from said expansion chamber; said nozzle comprising means for putting the stream of water that flows out of said expansion chamber (30) into rotation.
Type:
Grant
Filed:
December 23, 2015
Date of Patent:
April 21, 2020
Assignee:
Veolia Water Solutions & Technologies Support
Inventors:
Thomas Thouvenot, Nathalie Vigneron-Larosa, Nicolas Roux
Abstract: The present invention concerns a method for biological treatment of carbon, nitrogen and optionally phosphorus in water, in a reactor system (1) comprising a sequencing batch reactor (SBR) (2) and a moving bed biofilm reactor (MBBR) (3). The method comprises a step (10) of filling said SBR reactor (2) with water to be treated (5), a step (20) of anoxic/aerobic biological treatment in said reactor system (1) and a step (30) of discharging treated water (35) from said SBR reactor (2). The anoxic/aerobic biological treatment step (20) comprises: a biological treatment (210) under largely anoxic conditions in the SBR reactor (2), producing a first effluent (215), a biological treatment (220) under aerobic conditions in the MBBR reactor (3), producing a second effluent (225), and a continuous recirculation of the first and second effluents. The present invention also concerns a corresponding facility.
Type:
Application
Filed:
May 22, 2018
Publication date:
March 26, 2020
Applicant:
Veolia Water Solutions & Technologies Support
Inventors:
Romain Lemaire, Tristan Germain, Daniel Lamarre
Abstract: A frame-type disc filter (100) is provided with a bypass water collector (33) disposed adjacent an inlet to the disc filter. Influent water overflows the inlet into the bypass water collector. A conduit is communicatively connected to the bypass water collector for directing the bypass water from the frame-type disc filter to an effluent channel that is independent of the frame-type disc filter.
Type:
Grant
Filed:
September 19, 2017
Date of Patent:
March 17, 2020
Assignee:
Veolia Water Solutions & Technologies Support
Abstract: The method and corresponding installation allow seawater to be biologically treated in order to purify it. The use of bioflocculation make it possible to avoid using exogenous coagulation and/or flocculation agents, allows a significant reduction in the clogging power of the water treated, allows an improvement of the yield and a reduction of the quantities of sludge produced to be treated then discharged.
Type:
Application
Filed:
December 28, 2017
Publication date:
March 5, 2020
Applicant:
Veolia Water Solutions & Technologies Support
Abstract: The invention relates to a method for the treatment of a filtrate (1a-1c) from an anaerobic membrane bioreactor (2), comprising reducing the pH of the filtrate (1a) from the anaerobic membrane bioreactor and subjecting the filtrate having the reduced pH to a reverse osmosis treatment or a nanofiltration treatment (3), forming a reverse osmosis or nanofiltration permeate (4) and a reverse osmosis or nanofiltration concentrate (5) whilst keeping the filtrate (1a-1c) from the anaerobic membrane bioreactor (2) essentially anaerobic. The invention further relates to an installation suitable to carry out a method according to the invention and to a process for obtaining purified water and/or nutrients for plants or animals.
Type:
Application
Filed:
December 20, 2017
Publication date:
January 16, 2020
Applicant:
Veolia Water Solutions & Technologies Support
Inventors:
Barry Heffernan, Robertus Johannes Frankin
Abstract: The invention concerns a device for measuring the pH of an effluent, said device comprising means for measuring an item of information representative of the pH of said effluent intended to be brought into contact with said effluent. According to the invention, such a device further comprises means for modifying the pH value of said effluent close to said means for measuring.
Type:
Application
Filed:
July 9, 2018
Publication date:
January 9, 2020
Applicant:
VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
Inventors:
Yves DE COULON, Carine BERIET, Cyrille LEMOINE
Abstract: Method and installation of thermal hydrolysis of sludges implementing a group of thermal hydrolysis reactors (71,72,73,74) characterized in that it comprises successions of cycles, each of these successions of cycles being dedicated to one of said thermal hydrolysis reactors, each cycle comprising: a step a) for conveying a batch of non-preheated sludges to be treated into a thermal hydrolysis reactor (71,72,73,74), said step for conveying comprising the continuous passage of the sludges of said batch of sludges into a dynamic mixer (3) into which recovery steam is injected; a step b) for injecting live steam into said thermal hydrolysis reactor (71,72,73,74) containing said batch of sludges so as to increase the temperature and the pressure prevailing in this reactor; a step c) of thermal hydrolysis of the batch of sludges in the thermal hydrolysis reactor; a step d) for emptying the content of the batch of hydrolyzed sludges of said thermal hydrolysis reactor towards a recovery vessel (13), and for concomit
Type:
Grant
Filed:
October 30, 2015
Date of Patent:
January 7, 2020
Assignee:
Veolia Water Solutions & Technologies Support
Inventors:
Julien Chauzy, Malik Djafer, Cedric Crampon
Abstract: Installation for the biological treatment of water comprising a sequencing batch reactor (SBR) characterized in that said sequencing batch reactor (1) receives purifying plants (2) provided with at least partially submerged roots (3) and moving hollow carriers (4) made of hard plastic on which a biomass grows.
Type:
Application
Filed:
January 23, 2018
Publication date:
December 26, 2019
Applicant:
Veolia Water Solutions and Technologies Support
Abstract: Method for treating water comprising: a step for putting said water into contact with an adsorbent powdery material in a concentration of 0.1 to 5 g/L in a membrane reactor containing at least one submerged filtration membrane; a step of filtration by submerged membrane of said water containing said adsorbent powdery material in said membrane reactor, said membrane being at least partly constituted by an organic material; characterized in that it includes steps aimed at limiting the abrasion of said at least one submerged membrane by said adsorbent powdery material, said steps consisting in: putting said water containing said adsorbent powdery material into contact, in said membrane reactor, with a particulate polymer material constituted by particles in a concentration of 1 g/L to 10 g/L, said particles having an average diameter of 1 mm to 5 mm and a density of 1.05 to 1.
Type:
Grant
Filed:
December 11, 2014
Date of Patent:
November 26, 2019
Assignee:
Veolia Water Solutions & Technologies Support
Abstract: A method of treating produced water, such as frac flowback, that includes pre-treating the produced water which is followed by a crystallization process that produces a condensate that typically includes ammonia and benzene. The ammonia and benzene concentration is reduced by biologically nitrifying and denitrifying the condensate. This produces an effluent that is directed to a solids-liquid separation process that removes suspended solids. The solids-liquid separation process produces another effluent that is subjected to a benzene polishing process that further reduces the benzene concentration of the effluent produced by the solids-liquid separation process.
Type:
Application
Filed:
January 10, 2018
Publication date:
November 21, 2019
Applicant:
Veolia Water Solutions & Technologies Support
Inventors:
Brad Biagini, Charles Blumenschein, Caroline Dale, Hillary Kronebusch
Abstract: The present invention relates to a system and process for treating a feedwater wherein the system includes at least one or nanofiltration unit that receives a feed under high pressure and produces a concentrate that is directed to and held at low pressure in a concentrate accumulator. Generally the permeate or the inlet feedwater is maintained at a constant flow rate. Periodically the system is switched from a mode 1 or normal operating process to a mode 2 where the concentrate is drained from the concentrate accumulator. However, in mode 2, the feedwater is still directed into the system and through the RO or nanofiltration unit which produces the permeate and the concentrate.
Type:
Application
Filed:
January 8, 2018
Publication date:
October 24, 2019
Applicant:
Veolia Water Solutions & Technologies Support
Abstract: The present invention is directed to a first farming plant including a central tank and one or more surrounding tanks, where the central tank is used for water treatment and the one or more surrounding tanks are used for the farming of fish. The fish farming plan may also include one or more flow applicators, whereby the flow rate of the water in the surrounding tanks are individually independent of the water exchange rate. The fish farming plant may include several movable permeable section walls in each of the surrounding tanks dividing each surrounding tank into tank sections. Each surrounding tank is equipped with one or more outlets and one or two inlets, and a substantially horizontal/laminar flow structure of the water in each one of the surrounding tanks is provided.
Type:
Application
Filed:
May 3, 2019
Publication date:
September 5, 2019
Applicant:
Veolia Water Solutions & Technologies Support, SAS
Abstract: An oil or gas recovery process (10) is disclosed where resulting produced water includes silica. The process entails removing silica from the produced water via a two-stage process. In the first stage, magnesium oxide is injected into a Magnesium Dissolution Reactor (18) and mixed with the produced water to dissolve magnesium. Effluent from the Magnesium Dissolution Reactor (18) is directed downstream to a warm lime softener (22) where one or more alkaline chemicals are added to the produced water to raise the pH to approximately 10.0 to 11.5. Here, silica is co-precipitated with magnesium hydroxide and/or adsorbed onto magnesium hydroxide precipitates.
Type:
Application
Filed:
July 28, 2017
Publication date:
August 22, 2019
Applicant:
VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
Abstract: A frame-type disc filter (100) is provided with a bypass water collector (33) disposed adjacent an inlet to the disc filter. Influent water overflows the inlet into the bypass water collector. A conduit is communicatively connected to the bypass water collector for directing the bypass water from the frame-type disc filter to an effluent channel that is independent of the frame-type disc filter.
Type:
Application
Filed:
September 19, 2017
Publication date:
August 22, 2019
Applicant:
Veolia Water Solutions & Technologies Support