Patents Assigned to Veolia Eau - Compagnie Generale des Eaux
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Patent number: 11498021Abstract: The invention concerns an underwater water treatment unit which has specific cleaning means which are suitable for cleaning filtration membranes in the unconventional conditions associated with use at great or very great depths, as well as a method for cleaning the membrane of the underwater water treatment unit.Type: GrantFiled: March 9, 2020Date of Patent: November 15, 2022Assignees: TOTAL SA, SAIPEM S.A., VEOLIA EAU-COMPAGNIE GENERALE DES EAUX, VWS WESTGARTH LTDInventors: Luc Riviere, Pierre Pedenaud, Didier Bigeonneau, Stéphane Anres, Raymond Hallot, Wayne Evans, David Lothian
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Patent number: 8590711Abstract: The invention relates to a method of diagnosing the operation of a water purification installation of the filter medium device type, the material of the filter medium being made up of particles, the method including the following steps: a characterization step of characterizing at least one physical and/or mechanical parameter of the filter medium device to establish a permeability value Ks (expressed in m/s); a comparison step of comparing said established permeability value Ks with a predetermined range [kmin; kmax] of permeability values representing a satisfactory operating state of the purification installation; and a diagnosis step during which the filter medium device is assigned an operation indicator according to the result of the comparison step. Applications include non-collective sanitation (NCS) systems and stand-alone sanitation systems.Type: GrantFiled: January 18, 2010Date of Patent: November 26, 2013Assignees: Veolia Eau-Compagnie Generale des Eaux, Centre National du Machinisme Agricole, du Genie Rural, des Eaux et des Forets (CEMAGREF), Universite Blaise Pascal—Clermont IIInventors: Christian Vignoles, Pascal Molle, Alain Lienard, Laurence Rolland, Pierre Breul, Fathe Bouteldja, Daniel Boissier
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Patent number: 8449766Abstract: The invention relates to a device (10) for capturing odor- and/or taste-generating substances present in water flowing continuously in a water distribution network via a pipe (12). In characteristic manner, the device comprises: capture means (22) for capturing said substances; at least one chamber (18) containing said capture means (22) and suitable for having network water flow therethrough; and hydraulic link and connection means (14; 42) between said chamber (18) and said pipe (12). The invention is applicable to networks for distributing drinking water.Type: GrantFiled: July 12, 2007Date of Patent: May 28, 2013Assignee: Veolia Eau, Compagnie Generale des EauxInventors: Cédric Feliers, Elise Corbi, David Benanou
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Publication number: 20120199208Abstract: A method of generating a series of successive marked parcels of water in a water distribution network (12) fed by at least one water source (16) supplying water continuously, the method being characterized in that it includes: a step of measuring at least one first physico-chemical parameter of water from the source; a step of comparing the variation of the first parameter and a predetermined threshold; a step of defining parcels of water (L1, L2, L3, L4) during which each parcel of water is constituted by the volume of water supplied by the source between a first time and a second time later than the first time, the second time being determined automatically so as to correspond to a time at which said at least one measured first parameter is subject to a variation greater than the predetermined threshold; a step of acquiring and storing a natural evolution of the measured first parameter between the first and second times; and a step of natural marking of said parcel of water that consists in associating saiType: ApplicationFiled: June 9, 2010Publication date: August 9, 2012Applicant: VEOLIA EAU- COMPAGNIE GENERALE DES EAUXInventors: Marc Moreau, Cyrille Lemoine
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Publication number: 20120111799Abstract: The invention relates to an installation (30) for monitoring the quality of water and designed to be installed on a pipe (18) dedicated to distributing water to a consumer. The invention is characterized in that the installation comprises: a probe (32) for measuring at least one parameter of the water flowing in the pipe; a contamination detector device (46) for detecting the presence, if any, of contamination on the basis of measurements performed by the probe; a reverse flow detector device (36) for detecting reverse flow in said pipe; a disinfection device (40) for disinfecting the water in the pipe and/or a cutoff valve for closing the pipe; and a control member (50) for actuating the disinfection device and/or the cutoff valve as a function of data provided by the contamination detector device and the reverse flow detector device, whereby the quality of the water delivered to or returned by the consumer is monitored.Type: ApplicationFiled: March 19, 2010Publication date: May 10, 2012Applicant: VEOLIA EAU - COMPAGNIE GENERALE DES EAUXInventors: Cyrille Lemoine, Marc Moreau
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Publication number: 20120065786Abstract: A control method for controlling a wastewater network, said network including actuators suitable for influencing the flow rates of water in the network, with the behavior of the actuator depending on setpoints, the method comprising: a step of selecting a rain type from a list of predetermined rain types, as a function of forecast or measured rain; a step of selecting a set of setpoints from a list of predetermined setpoints, as a function of the selected rain type; and a step of sending the setpoints of the selected set of setpoints to said actuators. The method further comprises a step of obtaining first state information representative of the current state of the network, said set of setpoints being selected from the list of predetermined sets of setpoints as a function of the selected rain type and as a function of the first state information.Type: ApplicationFiled: January 26, 2011Publication date: March 15, 2012Applicant: VEOLIA EAU - COMPAGNIE GENERALE DES EAUXInventors: Benoit Beraud, Maurin Lovera, Mohammad Mourad
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Publication number: 20100125422Abstract: The invention relates to a method of qualifying the variability of the composition of an effluent, in which method a series of measurements is effected over time of at least one first and one second parameter of the effluent. The invention is characterized in that, in each time step, first and second derivatives of the parameters are determined, first and second logical domains are defined, probabilities of the first derivatives belonging to the first logical domains are assigned, probabilities of the second derivatives belonging to the second logical domains are assigned, global logical domains are defined, global probabilities of belonging to the global logical domains are assigned, and the variability of the composition of the effluent is qualified on the basis of these global probabilities of belonging to the global logical domains.Type: ApplicationFiled: January 24, 2008Publication date: May 20, 2010Applicant: Veolia Eau-Compagnie Generale Des EauxInventors: Marie-Pierre Denieul, Olivier Daniel, Arnaud Bucaille, Cyrille Lemoine
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Patent number: 7716782Abstract: The invention relates to a mobile unit for cleaning a sewer network from a manhole, the unit comprising a suction hose, a cleaner hose, and a support and guide arm comprising a horizontal portion movable in swiveling about a vertical axis and in horizontal translation relative to the mobile unit, said arm further including a vertical portion connected to the horizontal portion and presenting a bottom module movable in swiveling and in vertical translation relative to said horizontal portion, the suction and cleaner hoses being connected to said bottom module, whereby the positioning of the bottom module corresponds substantially to the positioning of the working ends of the suction and cleaner hoses.Type: GrantFiled: November 21, 2007Date of Patent: May 18, 2010Assignee: Veolia Eau - Compagnie Generale Des EauxInventors: Cyril Terrien, Eric Gaudy
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Publication number: 20090261039Abstract: The invention relates to a method of treating water effluent from purging or cleaning steam generator circuits. In characteristic manner, the following steps are performed: filtering the raw effluent to separate insoluble matter from the filtered effluent; and concentrating the filtered effluent to below the solubility limit of the dissolved species so as to obtain a liquid concentrate, the concentration step including at least evapo-concentration treatment and reverse osmosis treatment; the pH of the effluent being adjusted to a value in the range 5 to 6.5.Type: ApplicationFiled: April 15, 2009Publication date: October 22, 2009Applicant: VEOLIA EAU - COMPAGNIE GENERALE DES EAUXInventors: Herve Paillard, Jerome De Benedittis, Joseph Bonnefoy
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Publication number: 20090221013Abstract: The invention relates to a method of rapidly quantifying living coliform microorganisms in a sample of water in which the microorganisms are put into contact with a fluorogenic substrate that is hydrolyzed in methylumbelliferone by an enzyme given off by the microorganisms. Methylumbelliferone is detected by the fluorescence that it emits, with the rate at which this fluorescence varies being measured in order to determine the concentration of coliform microorganisms in the original sample on the basis of the calculated rate of variation and a correlation plot. In characteristic manner, a preliminary treatment step is performed on the sample, in particular pre-filtering, serving to remove at least some of the particles in suspension in the water, thus making it possible to achieve quantification that is entirely comparable with the quantification given by the standardized multi-well panel method. The invention is applicable to analyzing bathing water for detecting Escherichia coli.Type: ApplicationFiled: June 1, 2006Publication date: September 3, 2009Applicant: Veolia Eau-Compagnie Generale Des EauxInventors: Anne-Sophie Lepeuple, Philipe Lebaron, Pierre Servais
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Case For Sampling Water And Capturing Substances That Generate Orders And/Or Tastes Present In Water
Publication number: 20080020486Abstract: The invention relates to a case for sampling water and capturing substances that generate odors and/or tastes present in water, comprising: at least one sample vial serving to contain a water sample, and means for capturing said substances contained in this sample.Type: ApplicationFiled: November 24, 2005Publication date: January 24, 2008Applicant: VEOLIA EAU - COMPAGNIE GENERALE DES EAUXInventors: Elise Corbi, David Benanou, John Cigana -
Method for controlling the integrity of a nanofiltration or reverse osmosis module, or module system
Patent number: 7216529Abstract: The invention concerns a method for controlling a nanofiltration or reverse osmosis module system designed for treating a supply fluid or for detecting living micro-organism leaks, each module comprising nanofiltration or reverse osmosis membranes and joints connecting said membranes, including steps which consist in: selecting in the supply fluid a dissolved compound present in significant amount but normally highly retained by the membranes; measuring the concentration value of said compound in a downstream zone of a module of said system; comparing said measured value with a reference value; and recognising the existence of a fault in said zone of the system when said measured value is higher than the reference value.Type: GrantFiled: June 1, 2001Date of Patent: May 15, 2007Assignees: Veolia Eau - Compagnie Generale des Eaux, Syndicat des Eaux d'ile de France (SEDIF)Inventors: Claire Ventresque, Valerie Gisclon-Lallemand, Guy Bablon, Gérard Chagneau