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1. WO2020089192 - METHOD FOR REMOVING POLYFLUORINATED ORGANIC COMPOUNDS FROM WATER BY MEANS OF AN ADSORBENT AND REGENERATION OF THE LATTER

Publication Number WO/2020/089192
Publication Date 07.05.2020
International Application No. PCT/EP2019/079452
International Filing Date 29.10.2019
IPC
B01J 20/18 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
02comprising inorganic material
10comprising silica or silicate
16Alumino-silicates
18Synthetic zeolitic molecular sieves
B01J 20/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
30Processes for preparing, regenerating or reactivating
34Regenerating or reactivating
C02F 1/28 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
28by sorption
C02F 101/36 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
101Nature of the contaminant
30Organic compounds
36containing halogen
CPC
B01J 20/18
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
02comprising inorganic material
10comprising silica or silicate
16Alumino-silicates
18Synthetic zeolitic molecular sieves
B01J 20/3408
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
30Processes for preparing, regenerating, or reactivating
34Regenerating or reactivating
3408of aluminosilicate molecular sieves
B01J 20/3441
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
30Processes for preparing, regenerating, or reactivating
34Regenerating or reactivating
3441Regeneration or reactivation by electric current, ultrasound or irradiation, e.g. electromagnetic radiation such as X-rays, UV, light, microwaves
B01J 20/3458
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
30Processes for preparing, regenerating, or reactivating
34Regenerating or reactivating
345using a particular desorbing compound or mixture
3458in the gas phase
B01J 20/3475
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
30Processes for preparing, regenerating, or reactivating
34Regenerating or reactivating
345using a particular desorbing compound or mixture
3475in the liquid phase
C02F 1/281
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
28by sorption
281using inorganic sorbents
Applicants
  • HELMHOLTZ-ZENTRUM FÜR UMWELTFORSCHUNG GMBH - UFZ [DE]/[DE]
Inventors
  • GEORGI, Anett
  • KOPINKE, Frank-Dieter
  • MACKENZIE, Katrin
  • NGUYEN, The Viet
  • WOSZIDLO, Silke
  • KÖHLER, Robert
Agents
  • GULDE & PARTNER PATENT- UND RECHTSANWALTSKANZLEI MBB
Priority Data
18203492.630.10.2018EP
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR ENTFERNUNG VON POLYFLUORIERTEN ORGANISCHEN VERBINDUNGEN AUS WASSER MITTELS EINES ADSORBENS UND DESSEN REGENERIERUNG
(EN) METHOD FOR REMOVING POLYFLUORINATED ORGANIC COMPOUNDS FROM WATER BY MEANS OF AN ADSORBENT AND REGENERATION OF THE LATTER
(FR) PROCÉDÉ POUR ÉLIMINER DES COMPOSÉS ORGANIQUES POLYFLUORÉS PRÉSENTS DANS DE L'EAU AU MOYEN D'UN ADSORBANT ET POUR RÉGÉNÉRER CE DERNIER
Abstract
(DE)
Die Erfindung betrifft ein Verfahren zur Entfernung von polyfluorierten organischen Verbindungen aus Wassermittels eines Adsorbens und dessen Regenerierung. Es ist erfindungsgemäß vorgesehen, als Adsorbens zumindest einen Zeolitheneinzusetzen, der mit dem Wasser in Kontakt gebracht wird und anschließend durchnasschemische Oxidation regeneriert wird, wobei die Oxidation unter UV-Bestrahlung und/oder bei einem pH-Wert im Bereich von pH 2,5 –7,5 erfolgt.
(EN)
The invention relates to a method for removing polyfluorinated organic compounds from water by means of an adsorbent and to the regeneration of the latter. According to the invention, at least one zeolite is used as an adsorbent, which is brought into contact with the water and is then regenerated by wet-chemical oxidation, wherein the oxidation is carried out by means of UV irradiation and/or at a pH in the range from pH 2.5-7.5.
(FR)
L'invention concerne un procédé pour éliminer des composés organiques polyfluorés présents dans de l'eau au moyen d'un adsorbant et pour régénérer ce dernier. Selon l'invention, on utilise comme adsorbant au moins une zéolithe qui est mise en contact avec l'eau et qui est ensuite régénérée par oxydation chimique par voie humide, l'oxydation s'effectuant par exposition à un rayonnement UV et/ou à un pH dans une plage de 2,5-7,5.
Also published as
Latest bibliographic data on file with the International Bureau