Global Patent Index - EP 4240698 A1

EP 4240698 A1 20230913 - METHOD FOR THE TREATMENT OF A LIQUID AND ADDITION SOURCE THEREFOR

Title (en)

METHOD FOR THE TREATMENT OF A LIQUID AND ADDITION SOURCE THEREFOR

Title (de)

VERFAHREN ZUR BEHANDLUNG EINER FLÜSSIGKEIT UND ZUGABEQUELLE DAFÜR

Title (fr)

PROCÉDÉ DE TRAITEMENT DE LIQUIDE ET SOURCE D'AJOUT POUR CELUI-CI

Publication

EP 4240698 A1 20230913 (DE)

Application

EP 21801850 A 20211022

Priority

  • DE 102020006846 A 20201106
  • EP 2021079376 W 20211022

Abstract (en)

[origin: WO2022096289A1] The invention relates to a method for changing the concentration of at least one organic second substance in a liquid consisting predominantly of water and containing an in particular phosphate-containing first substance in the liquid by adsorption of particles of the second substance to a third substance which is added to the liquid, consists predominantly of carbon in weight percent and has an inner surface area of more than 100 m2/g under an effect supporting a movement of the adsorbent third substance with a movement direction component in the direction of gravity by a product of a precipitation of the first substance with a fourth substance which is added to the liquid and contains or consists of an iron- or aluminium-containing metal salt, in which method the addition of the fourth substance and the addition of the third substance, which is already pretreated in a manner counteracting its movement in the liquid with a movement component counter to the direction of gravity before this addition, take place close to each other in time and space.

IPC 8 full level

C02F 1/28 (2023.01); C02F 1/52 (2023.01); C02F 101/10 (2006.01); C02F 101/30 (2006.01)

CPC (source: EP)

C02F 1/283 (2013.01); C02F 1/5245 (2013.01); C02F 2101/105 (2013.01); C02F 2101/30 (2013.01)

Citation (search report)

See references of WO 2022096289A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

WO 2022096289 A1 20220512; DE 102020006846 A1 20220512; EP 4240698 A1 20230913

DOCDB simple family (application)

EP 2021079376 W 20211022; DE 102020006846 A 20201106; EP 21801850 A 20211022