Patents by Inventor Philippe Sauvignet

Philippe Sauvignet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200155972
    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
  • Publication number: 20200131059
    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
  • Patent number: 10301193
    Abstract: Method for treating water by filtration on a bed of granular material in order to reduce its content in contaminants, said method comprising the steps for: making said water travel in transit in a reactor containing said bed in a upward flow at a speed that does not permit the fluidization of said bed but permits said material to migrate, as and when the filtration takes place, towards the lower part of said reactor, continuously removing a fouled granular material at the foot of the reactor, by means of a piping into which a gas is insufflated, said fouled granular material being constituted by granular material and contaminants adsorbed on said granular material; continuously or intermittently carrying out the physical cleansing of said fouled granular material thus removed, so as to obtain a cleansed granular material essentially rid of said contaminants; reinjecting the granular material thus cleansed into an upper part of said bed; characterized in that the granular material is an adsorbent granular mate
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: May 28, 2019
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Abdelkader Gaid, Philippe Sauvignet
  • Patent number: 9957182
    Abstract: Method for treating water, containing organic matter characterized in that it comprises a step of adsorption of the organic matter contained in said water, in which this water is put into contact with an amagnetic ion-exchanging resin in an infinitely stirred tank (1); the filtering of the mixture of water and resin within the tank (1) and the discharging of filtered water from this tank, the filtering being implemented through at least one screen (4) provided within the tank (1) enabling the resin to be contained in the infinitely stirred tank; the periodic cleansing of the screen (4) consisting of the separation, from this screen, of the saturated resin that has collected thereon; the drawing off (18) of saturated resin from the tank (1); the regenerating (6) of at least a part of the saturated resin thus drawn off; the recycling (7) of said resin thus regenerated in the tank (1); a step of ballasted coagulation/flocculation (12, 13) and separation (14) comprising the addition of coagulant reagent (12b), fl
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: May 1, 2018
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Philippe Sauvignet, Abdelkader Gaid
  • Publication number: 20170297940
    Abstract: Method and plant for treating water implementing a contact vessel (21) for putting water into contact with a granular adsorbent material and a clarification, granular adsorbent material is constituted by agglomerates of active carbon particles, said agglomerates having an average size of 200 ?m to 600 ?m and a specific surface area of 800 to 1000 m2/g, a screen (9) being provided in the upper part of the contact vessel (21) comprising a layer of porous material having a thickness of 1 to 5 mm and a cut-off threshold of 100 ?m to 200 ?m, said contact vessel (21) having a hopper-shaped lower part (21a), purging means (21b) and stirring means (22) to stir the content of the upper part of this contact vessel (21) without stirring the content of the lower hopper-shaped part.
    Type: Application
    Filed: April 13, 2017
    Publication date: October 19, 2017
    Applicant: Veolia Water Solutions & Technologies Support
    Inventors: Philippe SAUVIGNET, Abdelkader GAID
  • Publication number: 20170129785
    Abstract: Method for treating water by filtration on a bed of granular material in order to reduce its content in contaminants, said method comprising the steps for: making said water travel in transit in a reactor containing said bed in a upward flow at a speed that does not permit the fluidization of said bed but permits said material to migrate, as and when the filtration takes place, towards the lower part of said reactor, continuously removing a fouled granular material at the foot of the reactor, by means of a piping into which a gas is insufflated, said fouled granular material being constituted by granular material and contaminants adsorbed on said granular material; continuously or intermittently carrying out the physical cleansing of said fouled granular material thus removed, so as to obtain a cleansed granular material essentially rid of said contaminants; reinjecting the granular material thus cleansed into an upper part of said bed; characterized in that the granular material is an adsorbent granular mate
    Type: Application
    Filed: June 18, 2015
    Publication date: May 11, 2017
    Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
    Inventors: Abdelkader GAID, Philippe SAUVIGNET
  • Patent number: 9505638
    Abstract: A method for treating wastewater using a ballasted flocculation technique includes continuously measuring the concentration of suspended solids, organic matter or other impurities in the water to be treated prior to directing the water to be treated to a flocculation tank. Based on this measurement, the amount of ballast necessary to obtain treated water of a predetermined quality is then calculated. In the flocculation tank, ballast and a flocculating reagent are added to the water to form a water-floc mixture. The water-floc mixture is directed to a settling tank where a sludge-ballast mixture is settled. The sludge-ballast mixture is directed to a mixing tank and then to a separator to separate the ballast from the sludge. The separated ballast is directed to the flocculation tank. The separated sludge is directed to the mixing tank when the level of sludge-ballast mixture in the mixing tank is lower than a predetermined level.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: November 29, 2016
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Philippe Sauvignet, Claus Dahl, Valery Ursel, Celine Levecq, Jean-Francois Beaudet
  • Publication number: 20160167998
    Abstract: Method for treating water, containing organic matter characterized in that it comprises a step of adsorption of the organic matter contained in said water, in which this water is put into contact with an amagnetic ion-exchanging resin in an infinitely stirred tank (1); the filtering of the mixture of water and resin within the tank (1) and the discharging of filtered water from this tank, the filtering being implemented through at least one screen (4) provided within the tank (1) enabling the resin to be contained in the infinitely stirred tank; the periodic cleansing of the screen (4) consisting of the separation, from this screen, of the saturated resin that has collected thereon; the drawing off (18) of saturated resin from the tank (1); the regenerating (6) of at least a part of the saturated resin thus drawn off; the recycling (7) of said resin thus regenerated in the tank (1); a step of ballasted coagulation/flocculation (12, 13) and separation (14) comprising the addition of coagulant reagent (12b), fl
    Type: Application
    Filed: December 4, 2015
    Publication date: June 16, 2016
    Applicant: Veolia Water Solutions & Technologies Support
    Inventors: Philippe SAUVIGNET, Abdelkader GAID
  • Patent number: 9249035
    Abstract: A method of treating water to reduce pollutants comprises mixing an adsorbent reagent with the water to form a water-adsorbant reagent mixture. Thereafter, subjecting the mixture to a liquid-solids separation process that produces treated water and sludge. The method further includes contacting the water or treated water with a living aquatic organism wherein the value of at least one property of the organism is correlated to the concentration of pollutants in the water. This value is evaluated and the method entails adjusting the quantity of adsorbent reagent mixed with the water as a function of the value of the property.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: February 2, 2016
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Abdelkader Gaid, Philippe Sauvignet
  • Publication number: 20140209523
    Abstract: A method for treating wastewater using a ballasted flocculation technique includes continuously measuring the concentration of suspended solids, organic matter or other impurities in the water to be treated prior to directing the water to be treated to a flocculation tank. Based on this measurement, the amount of ballast necessary to obtain treated water of a predetermined quality is then calculated. In the flocculation tank, ballast and a flocculating reagent are added to the water to form a water-floc mixture. The water-floc mixture is directed to a settling tank where a sludge-ballast mixture is settled. The sludge-ballast mixture is directed to a mixing tank and then to a separator to separate the ballast from the sludge. The separated ballast is directed to the flocculation tank. The separated sludge is directed to the mixing tank when the level of sludge-ballast mixture in the mixing tank is lower than a predetermined level.
    Type: Application
    Filed: December 16, 2013
    Publication date: July 31, 2014
    Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
    Inventors: Philippe Sauvignet, Claus Dahl, Valey Ursel, Celine Levecq, Jean-Francois Beaudet
  • Publication number: 20140097140
    Abstract: A method of treating water to reduce pollutants comprises mixing an adsorbent reagent with the water to form a water-adsorbant reagent mixture. Thereafter, subjecting the mixture to a liquid-solids separation process that produces treated water and sludge. The method further includes contacting the water or treated water with a living aquatic organism wherein the value of at least one property of the organism is correlated to the concentration of pollutants in the water. This value is evaluated and the method entails adjusting the quantity of adsorbent reagent mixed with the water as a function of the value of the property.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 10, 2014
    Applicant: Veolia Water Solutions & Technologies Support
    Inventors: Abdelkader Gaid, Philippe Sauvignet
  • Patent number: 8617400
    Abstract: A method for treating wastewater using a ballasted flocculation technique includes continuously measuring the concentration of suspended solids, organic matter or other impurities in the water to be treated prior to directing the water to be treated to a flocculation tank. Based on this measurement, the amount of ballast necessary to obtain treated water of a predetermined quality is then calculated. In the flocculation tank, ballast and a flocculating reagent are added to the water to form a water-floc mixture. The water-floc mixture is directed to a settling tank where a sludge-ballast mixture is settled. The sludge-ballast mixture is directed to a mixing tank and then to a separator to separate the ballast from the sludge. The separated ballast is directed to the flocculation tank. The separated sludge is directed to the mixing tank when the level of sludge-ballast mixture in the mixing tank is lower than a predetermined level.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: December 31, 2013
    Assignee: Veolia Water Solutions & Technologies Support
    Inventors: Philippe Sauvignet, Claus Dahl, Valey Ursel, Celine Levecq, Jean-Francois Beaudet
  • Publication number: 20130168318
    Abstract: Method for treating water by ballasted flocculation comprising a step for injecting into said water at least a flocculent, a step for injecting into said water at least one particulate material that is denser than water, and a step for retrieving treated water, characterised in that said ballasted flocculation is performed under agitating at a mean speed gradient between 100 and 1400 s?1 and in that said flocculent consists of at least one natural carbohydrate polymer having an anionic charge density between ?900 and ?4000 ?eq/g.
    Type: Application
    Filed: April 18, 2011
    Publication date: July 4, 2013
    Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
    Inventors: Celine Levecq, Philippe Sauvignet
  • Publication number: 20120255912
    Abstract: Process for treating water to be treated by clarification comprising an adsorption of a portion of clarified water and a clarification of a mixture of adsorbed clarified water and water to be treated The invention pertains to a process for treating water to be treated comprising: a step for clarifying said water to be treated producing a clarified water; a step for placing a part of said clarified water in contact with a powdered adsorbent reagent producing a mixture of clarified water and powdered adsorbent reagent; a step for mixing said mixture with said water to be treated; a step for discharging the remainder of the clarified water.
    Type: Application
    Filed: April 11, 2012
    Publication date: October 11, 2012
    Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
    Inventors: Isabelle Giraud, Abdelkader Gaid, Philippe Sauvignet
  • Patent number: 8092688
    Abstract: A method for treating water in a ballasted flocculation system comprises directing water into a ballasted flocculation zone and adding ballast and a flocculation reagent to the water to form a water-floc mixture. The water-floc mixture is directed into a settling zone to form treated water and sludge containing ballast. The ballast is then directed to a recirculation line where the ballast is recirculated to the ballasted flocculation zone. The method further includes determining the ballast concentration and comparing the ballast concentration with a predetermined threshold value. The rate at which ballast is recirculated to the ballasted flocculation zone is adjusted based on the determined ballast concentration and the predetermined threshold value.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: January 10, 2012
    Assignee: OTV SA
    Inventors: Philippe Sauvignet, Jean-Francois Beaudet, Sonia Guillot, Valery Ursel
  • Patent number: 8092687
    Abstract: The invention relates to a method and installation for treatment of an aqueous phase containing a used adsorbent powdery material, such as activated carbon powder, from a water purification or potabilization installation, wherein said method includes: a first step of desorbing the main part of the organic matter adsorbed on the used adsorbent powdery material consisting of placing said aqueous phase containing the used adsorbent powdery material in contact with a desorbent compound resulting in a first aqueous phase containing at least partially regenerated adsorbent powdery material and desorbed organic matter; a first step of separating by sedimentation the main part of the desorbed organic matter from the rest of the first aqueous phase containing the at least partially regenerated adsorbent powdery material leading to the production of a second aqueous phase containing the at least partially regenerated adsorbent powdery material; a first step of neutralizing said second aqueous phase containing the at le
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: January 10, 2012
    Assignee: OTV SA
    Inventors: Abdelkader Gaid, Philippe Sauvignet
  • Patent number: 8062529
    Abstract: A method for treating water includes directing untreated water into a mixing zone in a water treatment system and mixing the untreated water with a flocculating agent and a ballast to form a ballast-floc mixture. Thereafter, the ballast-floc mixture is directed to a settling zone where the mixture settles to form sludge. Treated water is discharged from the settling zone and the sludge is directed to a separator. The method further includes separating at least a portion of the ballast from the sludge and directing the separated ballast from the separator to the mixing zone. Finally, the sludge is directed from the separator to a sludge treatment reactor where at least some of the remaining ballast settles from the sludge and substantially ballast-free sludge is discharged from the sludge treatment reactor.
    Type: Grant
    Filed: February 19, 2007
    Date of Patent: November 22, 2011
    Assignee: OTV SA
    Inventor: Philippe Sauvignet
  • Patent number: 7981297
    Abstract: A method for removing helminth egg and other suspended solids from a wastewater stream includes directing the wastewater to a ballasted flocculation system and adding a coagulation agent, flocculation agent and a ballast into the wastewater. Sludge is settled from the wastewater in a settling tank at a rate of at least 10 meters per hour. The method further includes removing helminth egg by filtering the effluent through a fine screen having a mesh diameter of approximately 5 micrometers to approximately 25 micrometers. After passing through the fine screen, the filtered effluent has less than one helminth egg per liter.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: July 19, 2011
    Assignee: OTV SA
    Inventors: Philippe Sauvignet, Claus Poulsen Dahl
  • Publication number: 20100187179
    Abstract: The invention relates to a method and installation for treatment of an aqueous phase containing a used adsorbent powdery material, such as activated carbon powder, from a water purification or potabilization installation, wherein said method includes: a first step of desorbing the main part of the organic matter adsorbed on the used adsorbent powdery material consisting of placing said aqueous phase containing the used adsorbent powdery material in contact with a desorbent compound resulting in a first aqueous phase containing at least partially regenerated adsorbent powdery material and desorbed organic matter; a first step of separating by sedimentation the main part of the desorbed organic matter from the rest of the first aqueous phase containing the at least partially regenerated adsorbent powdery material leading to the production of a second aqueous phase containing the at least partially regenerated adsorbent powdery material; a first step of neutralizing said second aqueous phase containing the at le
    Type: Application
    Filed: December 24, 2009
    Publication date: July 29, 2010
    Applicant: OTV SA
    Inventors: Abdelkader Gaid, Philippe Sauvignet
  • Publication number: 20100096335
    Abstract: A method for treating wastewater using a ballasted flocculation technique includes continuously measuring the concentration of suspended solids, organic matter or other impurities in the water to be treated prior to directing the water to be treated to a flocculation tank. Based on this measurement, the amount of ballast necessary to obtain treated water of a predetermined quality is then calculated. In the flocculation tank, ballast and a flocculating reagent are added to the water to form a water-floc mixture. The water-floc mixture is directed to a settling tank where a sludge-ballast mixture is settled. The sludge-ballast mixture is directed to a mixing tank and then to a separator to separate the ballast from the sludge. The separated ballast is directed to the flocculation tank. The separated sludge is directed to the mixing tank when the level of sludge-ballast mixture in the mixing tank is lower than a predetermined level.
    Type: Application
    Filed: December 26, 2007
    Publication date: April 22, 2010
    Applicant: OTV SA
    Inventors: Philippe Sauvignet, Claus Dahl, Valey Ursel, Celine Levecq, Jean-Francois Beaudet