公开(公告)号：US20210155510A1

公开(公告)日：2021-05-27

申请号：US17259189

申请日：2019-07-12

Applicant: SUEZ GROUPE

Inventor： Sepideh HASSANZADEH ,  Christophe CAUDRON ,  Isabelle BAUDIN ,  Delphine STEINMANN ,  Gilles FAY

IPC: C02F1/52

Abstract: A method for determining an optimal dose of coagulant for raw water includes a step of determining a value, for the raw water, of a first organic parameter; a step of determining a value, for the raw water, of a second mineral parameter; a step of determining a class of water for the raw water, characterized by the value of the first organic parameter and the value of the second mineral parameter; a step of determining a value, for the raw water, of a third organic parameter; a step of defining a target value, for the clarified water, of the third organic parameter; a step of selecting a function between the third organic parameter and an added dose of coagulant, said function being selected for the class of water and for the value, for the raw water, of the third organic parameter; a step of using the function to determine a first dose of coagulant in order to reach the target value.

公开(公告)号：US20230348295A1

公开(公告)日：2023-11-02

申请号：US18005923

申请日：2021-07-19

Applicant: SUEZ GROUPE

Inventor： Robert RACZKO ,  Isabelle BAUDIN ,  Naike NOYON ,  Zdravka DOQUANG

IPC: C02F1/28 ,  C08B37/16 ,  B01J20/24 ,  C02F1/00 ,  C08L5/02

CPC classification number: C02F1/008 ,  B01J20/24 ,  C02F1/285 ,  C08B37/0012 ,  C08L5/02 ,  C02F2101/36

Abstract: A method for controlling for PFAS removal from a liquid effluent by a control system (100), the control system including a PFAS treatment unit (10) dedicated to the treatment of perfluoroalkyls and polyfluoroalkyl substances PFAS including at least one treatment stage optionally chosen from a PFAS treatment stage, a short chain PFAS treatment stage and a long chain PFAS treatment stage. The method allows activating the PFAS treatment unit only when PFAS, in particular specific PFAS, are detected into the liquid effluent to treat. A control system (100) to implement the method is also disclosed.

公开(公告)号：US20190383779A1

公开(公告)日：2019-12-19

申请号：US16463828

申请日：2017-12-05

Applicant: SUEZ GROUPE

Inventor： Auguste BRUCHET ,  Zdravka DO QUANG ,  Isabelle BAUDIN ,  Naike NOYON

IPC: G01N33/00 ,  G01N33/18 ,  G01N33/28

Abstract: A process for monitoring the concentration of organic compounds in a fluid of a network, the fluid includes volatile organic compounds, comprising the following steps: first step of on-line measurement of the concentration of each of the organic compounds of the organic compounds in the fluid by an analyzer, second step of comparing the concentration of each of the organic compounds measured by the analyzer with a predefined threshold value for each of the organic compounds, third step of reducing the concentration of at least one organic compound if the concentration of the at least one organic compound measured by the analyzer is greater than the corresponding predefined threshold value. A device for monitoring the concentration of organic compounds is also provided.