FR3087433B1 - TREATMENT PROCESS BY ADSORPTION ON ACTIVE CARBON WITHOUT FLOCCULATION STEP AND WITHOUT INJECTION OF COAGULANT - Google Patents

TREATMENT PROCESS BY ADSORPTION ON ACTIVE CARBON WITHOUT FLOCCULATION STEP AND WITHOUT INJECTION OF COAGULANT Download PDF

Info

Publication number
FR3087433B1
FR3087433B1 FR1859787A FR1859787A FR3087433B1 FR 3087433 B1 FR3087433 B1 FR 3087433B1 FR 1859787 A FR1859787 A FR 1859787A FR 1859787 A FR1859787 A FR 1859787A FR 3087433 B1 FR3087433 B1 FR 3087433B1
Authority
FR
France
Prior art keywords
activated carbon
tank
settling
mixture
contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1859787A
Other languages
French (fr)
Other versions
FR3087433A1 (en
Inventor
Abdelkader Gaid
Philippe Sauvignet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Veolia Water Solutions and Technologies Support SAS
Original Assignee
Veolia Water Solutions and Technologies Support SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Veolia Water Solutions and Technologies Support SAS filed Critical Veolia Water Solutions and Technologies Support SAS
Priority to FR1859787A priority Critical patent/FR3087433B1/en
Priority to PCT/EP2019/078404 priority patent/WO2020083782A1/en
Publication of FR3087433A1 publication Critical patent/FR3087433A1/en
Application granted granted Critical
Publication of FR3087433B1 publication Critical patent/FR3087433B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/306—Pesticides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/02—Odour removal or prevention of malodour
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/18—Removal of treatment agents after treatment

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Procédé de traitement d'eau comprenant une étape de mise en contact d'eau à traiter avec du charbon actif dans une cuve pour former un mélange, une étape de décantation du mélange dans un décanteur, une étape de récupération d'eau traitée dans la partie supérieure du décanteur et une étape d'évacuation du charbon actif usé dans sa partie inférieure, le charbon actif ayant une granulométrie moyenne comprise entre 0,3 et 2 mm et une surface spécifique comprise entre 400 et 1800 m2/g et l'étape de mise en contact étant effectuée de façon à observer une concentration en charbon actif dans la cuve de contact comprise entre 20 et 150 g/l et un temps de séjour de l'eau dans la cuve de contact de 4 à 30 mn caractérisé en ce que l'étape de mise en contact est effectuée sous agitation douce selon un gradient de vitesse compris entre 50 et 150 s et est directement suivie de la décantation, le mélange ne transitant dans aucune cuve de coagulation et/ou de floculation entre la cuve de contact et le décanteur ; et en ce que l'étape de décantation est effectuée dans un décanteur selon une vitesse au miroir comprise entre 10 et 50 m/h de façon à autoriser la formation dans la partie inférieure du décanteur d'un lit de charbon actif homogène non turbulent présentant une concentration essentiellement uniforme en charbon actif supérieure à 20 g/I, le lit de charbon actif homogène filtrant le mélange et retenant les particules solides de celui-ci non adsorbées sur le charbon actif.Water treatment process comprising a step of bringing water to be treated into contact with activated carbon in a tank to form a mixture, a step of settling the mixture in a settling tank, a step of recovering treated water in the tank. upper part of the settling tank and a step for removing the spent activated carbon in its lower part, the activated carbon having an average particle size of between 0.3 and 2 mm and a specific surface area of between 400 and 1800 m2 / g and step contacting being carried out so as to observe an activated carbon concentration in the contact tank of between 20 and 150 g / l and a residence time of water in the contact tank of 4 to 30 minutes characterized in that that the contacting step is carried out with gentle stirring at a speed gradient of between 50 and 150 s and is directly followed by decantation, the mixture not passing through any coagulation and / or flocculation tank between the contact and the decanter; and in that the settling step is carried out in a settling tank at a mirror speed of between 10 and 50 m / h so as to allow the formation in the lower part of the settling tank of a bed of non-turbulent homogeneous activated carbon having an essentially uniform concentration of activated carbon greater than 20 g / l, the bed of homogeneous activated carbon filtering the mixture and retaining the solid particles thereof not adsorbed on the activated carbon.

FR1859787A 2018-10-23 2018-10-23 TREATMENT PROCESS BY ADSORPTION ON ACTIVE CARBON WITHOUT FLOCCULATION STEP AND WITHOUT INJECTION OF COAGULANT Active FR3087433B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1859787A FR3087433B1 (en) 2018-10-23 2018-10-23 TREATMENT PROCESS BY ADSORPTION ON ACTIVE CARBON WITHOUT FLOCCULATION STEP AND WITHOUT INJECTION OF COAGULANT
PCT/EP2019/078404 WO2020083782A1 (en) 2018-10-23 2019-10-18 Method for treatment by adsorption on activated carbon without a flocculation step and without a coagulant injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1859787A FR3087433B1 (en) 2018-10-23 2018-10-23 TREATMENT PROCESS BY ADSORPTION ON ACTIVE CARBON WITHOUT FLOCCULATION STEP AND WITHOUT INJECTION OF COAGULANT

Publications (2)

Publication Number Publication Date
FR3087433A1 FR3087433A1 (en) 2020-04-24
FR3087433B1 true FR3087433B1 (en) 2020-10-09

Family

ID=65444043

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1859787A Active FR3087433B1 (en) 2018-10-23 2018-10-23 TREATMENT PROCESS BY ADSORPTION ON ACTIVE CARBON WITHOUT FLOCCULATION STEP AND WITHOUT INJECTION OF COAGULANT

Country Status (2)

Country Link
FR (1) FR3087433B1 (en)
WO (1) WO2020083782A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2738235B1 (en) 1995-09-04 1997-11-28 Services Et D Environnement Ci PROCESS FOR TREATING A LIQUID SUCH AS WATER FOR EXAMPLE
WO2006013235A1 (en) 2004-07-05 2006-02-09 Societe D'amenagement Urbain Et Rural Method for depolluting organic micropollutant-containing fluid by activated carbon absorption in a processing reactor
US7678278B2 (en) * 2006-09-29 2010-03-16 Otv S.A. Sa Method of treating water with an inorganic powder reagent
FR3003477B1 (en) 2013-03-25 2023-10-06 Degremont METHOD AND INSTALLATION FOR TREATMENT OF FLUID CONTAINING ORGANIC, NATURAL OR SYNTHETIC MATERIALS, PARTICULARLY IN A DRINKING WATER SYSTEM
FR3027021A1 (en) * 2014-10-13 2016-04-15 Veolia Water Solutions & Tech PROCESS FOR WATER TREATMENT BY ADSORPTION ON ACTIVE CHARCOAL AND CLARIFICATION, AND CORRESPONDING INSTALLATION.
CN108623096B (en) * 2018-05-11 2021-07-06 北京翰祺环境技术有限公司 Treatment process of high-concentration degradation-resistant sewage

Also Published As

Publication number Publication date
WO2020083782A1 (en) 2020-04-30
FR3087433A1 (en) 2020-04-24

Similar Documents

Publication Publication Date Title
MA32208B1 (en) An effective method of filtering water in a tank for recreational and decorative purposes, or filtering is performed on a small volume of water and not on the totality of water from the tank
FR2980188B1 (en) PROCESS FOR TREATING AN AQUEOUS EFFLUENT IN ORDER TO BREAK THE CONTENT OF HEAVY METALS AND / OR DISSOLVED RADIOACTIVE SUBSTANCES.
FR3050200B1 (en) PROCESS FOR WATER TREATMENT BY ADSORPTION ON ACTIVE CHARCOAL AND CLARIFICATION, AND CORRESPONDING INSTALLATION.
MA44180A1 (en) Depressants for use in separation processes
FR2752569A1 (en) Waste water treatment after active sludge treatment
US4902429A (en) Gas assisted flotation process
TW201348702A (en) Application of fluorescent dyes to trace and quantify chemical dosage in industrial wastewater
US3128249A (en) Method for clarifying water
FR3087433B1 (en) TREATMENT PROCESS BY ADSORPTION ON ACTIVE CARBON WITHOUT FLOCCULATION STEP AND WITHOUT INJECTION OF COAGULANT
JP2016087564A5 (en)
US5055184A (en) Gas assisted flotation apparatus
CN106310777A (en) Lift-type filter disk for sludge concentration treatment equipment
WO2019119475A1 (en) Method for enhancing coagulation in stages
JP4625894B2 (en) Wastewater treatment method and treatment apparatus
GB457756A (en) Improvements in or relating to the clarifying of liquids and the thickening of sludge or pulp, especially with reference to the disposal of sewage
JP6739913B2 (en) Aggregation-precipitation control device, aggregation-precipitation control method and computer program
FR2441587A1 (en) PROCESS FOR TREATMENT OF WATER, PURIFICATION OF SEWAGE AND POLLUTED WATER, AND CONDENSATION OF PRECIPITIES AND DEVICE FOR CARRYING OUT SAID METHOD
JP4895642B2 (en) Microbial separation method
US2204812A (en) Composition of matter and method of using same
FR3049197B1 (en) DISSOLVED AIR FLOAT
JP6598065B2 (en) Polluted water treatment method
WO2018221970A3 (en) Highly-efficient precipitation/flotation system having integrated precipitation and flotation/separation processes and method for driving same
US10377652B1 (en) Process for enhanced fractionation of recovered waste streams
FR3075780B1 (en) WATER TREATMENT PROCESS IN A SEQUENTIAL DISCONTINUOUS REACTOR WITH INJECTION OF ACTIVE CARBON
Mamchenko et al. The impact of temperature on the efficiency of the coagulation process of titanyl sulfate and aluminum sulfate

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20200424

PLFP Fee payment

Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 4

PLFP Fee payment

Year of fee payment: 5

PLFP Fee payment

Year of fee payment: 6