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FR3123345B1 - Water treatment process by adsorption on micro-granular activated carbon incorporating microwave regeneration of the activated carbon. - Google Patents

Water treatment process by adsorption on micro-granular activated carbon incorporating microwave regeneration of the activated carbon.

Info

Publication number
FR3123345B1
FR3123345B1 FR2105492A FR2105492A FR3123345B1 FR 3123345 B1 FR3123345 B1 FR 3123345B1 FR 2105492 A FR2105492 A FR 2105492A FR 2105492 A FR2105492 A FR 2105492A FR 3123345 B1 FR3123345 B1 FR 3123345B1
Authority
FR
France
Prior art keywords
activated carbon
drying
desorption
carried out
micro
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
FR2105492A
Other languages
French (fr)
Other versions
FR3123345A1 (en
Inventor
Philippe Sauvignet
Jérôme Leparc
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 FR2105492A priority Critical patent/FR3123345B1/en
Publication of FR3123345A1 publication Critical patent/FR3123345A1/en
Application granted granted Critical
Publication of FR3123345B1 publication Critical patent/FR3123345B1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28011—Other properties, e.g. density, crush strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3441—Regeneration or reactivation by electric current, ultrasound or irradiation, e.g. electromagnetic radiation such as X-rays, UV, light, microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
    • B01J20/3458—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
    • B01J20/3466—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase with steam
    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/302—Treatment of water, waste water, or sewage by irradiation with microwaves
    • 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
    • C02F2101/301—Detergents, surfactants
    • 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
    • C02F2101/32—Hydrocarbons, e.g. oil
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/44—Nature of the water, waste water, sewage or sludge to be treated from vehicle washing facilities
    • 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
    • C02F2303/16—Regeneration of sorbents, filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Procédé de traitement d’eau en vue d’en abattre la teneur en pollution organique dissoute et en micropolluants comprenant la mise en contact de l’eau avec du charbon actif dans un unique contacteur, l’extraction d’eau traitée du contacteur, l’extraction, la déshumidification, le séchage du charbon actif usagé et la désorption par micro-ondes de la pollution adsorbée sur le charbon actif sans stopper la mise en contact de l’eau avec le charbon actif et le recyclage de charbon actif ainsi régénéré dans le contacteur, l’ensemble du procédé étant mis en œuvre dans une même installation, caractérisé en ce que : le charbon actif est du charbon actif en micro-grains auto-drainants présentant un indice d’iode compris entre 900 et 1000 mg/g, une granulométrie comprise entre 300 μm et 1000 μm, une granulométrie moyenne (D50) comprise entre 500 μm et 600 μm et une proportion strictement inférieure à 5% en poids de grains présentant une taille inférieure à 400 μm ; l’extraction, la déshumidification, le séchage, la désorption et le recyclage du charbon actif en micro-grains sont mises en œuvre sans matériel provoquant le brassage important du charbon actif, la déshumidification comprenant un simple égouttage du charbon actif; le séchage est effectué par micro-ondes, le séchage et la désorption étant menés dans un même équipement micro-ondes fonctionnant selon un cycle de séchage afin d’obtenir un charbon actif séché présentant un taux résiduel d’humidité inférieur à 5 % en poids suivi d’un cycle de désorption ; le séchage par micro-ondes et la désorption par micro-ondes sont mises en œuvre sous atmosphère contrôlée ; et en ce qu’il comprend la destruction des composés organiques volatils émis lors de la désorption par micro-ondes. Figure pour l’abrégé : [Fig. 1]A water treatment process for reducing dissolved organic pollution and micropollutants, comprising contacting water with activated carbon in a single contactor, extracting treated water from the contactor, extracting, dehumidifying, and drying the spent activated carbon, and desorbing the pollution adsorbed onto the activated carbon by microwaves without interrupting contact between the water and the activated carbon, and recycling the regenerated activated carbon back into the contactor, the entire process being carried out in a single installation, characterized in that: the activated carbon is self-draining micro-granular activated carbon with an iodine value between 900 and 1000 mg/g, a particle size between 300 μm and 1000 μm, an average particle size (D50) between 500 μm and 600 μm, and a proportion strictly less than 5% by weight of grains smaller than 400 μm; the extraction, dehumidification, drying, desorption, and recycling of the micro-granular activated carbon are carried out without equipment causing significant agitation of the activated carbon, dehumidification comprising simple draining of the activated carbon; drying is carried out by microwaves, with drying and desorption performed in the same microwave equipment operating according to a drying cycle to obtain dried activated carbon with a residual moisture content of less than 5% by weight, followed by a desorption cycle; microwave drying and microwave desorption are carried out under a controlled atmosphere; and in that it includes the destruction of volatile organic compounds emitted during microwave desorption. Figure for the abstract: [Fig. 1]

FR2105492A 2021-05-27 2021-05-27 Water treatment process by adsorption on micro-granular activated carbon incorporating microwave regeneration of the activated carbon. Active FR3123345B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2105492A FR3123345B1 (en) 2021-05-27 2021-05-27 Water treatment process by adsorption on micro-granular activated carbon incorporating microwave regeneration of the activated carbon.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2105492 2021-05-27
FR2105492A FR3123345B1 (en) 2021-05-27 2021-05-27 Water treatment process by adsorption on micro-granular activated carbon incorporating microwave regeneration of the activated carbon.

Publications (2)

Publication Number Publication Date
FR3123345A1 FR3123345A1 (en) 2022-12-02
FR3123345B1 true FR3123345B1 (en) 2025-12-26

Family

ID=77180141

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2105492A Active FR3123345B1 (en) 2021-05-27 2021-05-27 Water treatment process by adsorption on micro-granular activated carbon incorporating microwave regeneration of the activated carbon.

Country Status (1)

Country Link
FR (1) FR3123345B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7303684B2 (en) 2004-01-09 2007-12-04 Chang Yul Cha Process for microwave alternative destruction-adsorption
CN1260138C (en) 2004-04-15 2006-06-21 大连理工大学 Restoring method of activated carbon for decomposing, processing and adsorbing organic substance in waste water through microwave irradiation
DE102013006711A1 (en) * 2013-03-15 2014-09-18 BLüCHER GMBH Purification plant useful for treatment and/or purification of water, comprises counter-flow filter device, and regeneration device, or counter-flow filter device, optionally drying and/or dehumidifying device, and humidifying device
CN104609497A (en) * 2015-02-11 2015-05-13 上海三夫工程技术有限公司 Activated carbon treatment technology for organic wastewater

Also Published As

Publication number Publication date
FR3123345A1 (en) 2022-12-02

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