EP 2734477 A1 20140528 - POTABILISATION METHOD
Title (en)
POTABILISATION METHOD
Title (de)
TRINKWASSERPRODUKTIONSVERFAHREN
Title (fr)
PROCEDE DE POTABILISATION
Publication
Application
Priority
- FR 1156702 A 20110722
- FR 2012051714 W 20120719
Abstract (en)
[origin: WO2013014373A1] The aim of the invention is to provide a potabilisation method of a water to be treated, containing a coagulation-flocculation step characterised in that said step comprises: a) a step of adding a liquid composition comprising a solubilised cationic starch to the aqueous solution to be treated; b) a step of adding one or several metal salts selected from ferric salts and aluminium salts to the aqueous solution to be treated; steps a) and b) being carried out in any order and being carried out either separately, simultaneously or using a liquid composition comprising both the solubilised cationic starch and the metal salt, said steps a) and b) being followed: c) by a step of stirring the supplemented aqueous solution; d) by a step of separating the coagulated solids by sedimentation or floatation; e) by a step of recovering a purified water; said liquid composition comprising cationic starch having a viscosity, measured according to test A, higher than 1000 mPa.s.
IPC 8 full level
C02F 1/52 (2006.01)
CPC (source: EP US)
C02F 1/5236 (2013.01 - EP US); C02F 1/5245 (2013.01 - EP US); C02F 1/5272 (2013.01 - EP US); C02F 1/001 (2013.01 - EP US); C02F 1/24 (2013.01 - EP US); C02F 2209/09 (2013.01 - EP US); C02F 2209/11 (2013.01 - EP US)
Citation (search report)
See references of WO 2013014373A1
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
DOCDB simple family (publication)
FR 2978138 A1 20130125; FR 2978138 B1 20150522; CN 103717538 A 20140409; CN 103717538 B 20160420; EP 2734477 A1 20140528; JP 2014523342 A 20140911; JP 6008963 B2 20161019; US 2014197112 A1 20140717; WO 2013014373 A1 20130131
DOCDB simple family (application)
FR 1156702 A 20110722; CN 201280036121 A 20120719; EP 12750424 A 20120719; FR 2012051714 W 20120719; JP 2014520706 A 20120719; US 201214234238 A 20120719