EP 3717410 A1 20201007 - METHOD AND ARRANGEMENT FOR SEPARATING SOLIDS AND LIQUIDS IN SUSPENSIONS, IN PARTICULAR SEWAGE SLUDGE, BY ADDING FLOCCULANTS
Title (en)
METHOD AND ARRANGEMENT FOR SEPARATING SOLIDS AND LIQUIDS IN SUSPENSIONS, IN PARTICULAR SEWAGE SLUDGE, BY ADDING FLOCCULANTS
Title (de)
VERFAHREN UND ANORDNUNG ZUR FEST-FLÜSSIG-TRENNUNG VON SUSPENSIONEN, INSBESONDERE VON KLÄRSCHLAMM UNTER ZUGABE VON FLOCKUNGSMITTELN
Title (fr)
PROCÉDÉ ET DISPOSITIF DE SÉPARATION SOLIDE-LIQUIDE DE SUSPENSIONS, NOTAMMENT DE BOUES D'ÉPURATION, PAR AJOUT DE FLOCULANTS
Publication
Application
Priority
- DE 102018116196 A 20180704
- EP 2019067990 W 20190704
Abstract (en)
[origin: WO2020007978A1] The invention relates to a method for separating solids and liquids in suspensions, in particular sewage sludge (K), said method working by adding flocculants (F1) and/or flocculating agents. The suspension, in particular the sewage sludge (K), is observed by means of a sensor (S1). In a first method step, flocculants (F1) and/or flocculating agents are added to a first mixing stage (M1) until the sensor (S1) detects the formation of first flocs. The addition of the flocculant (F1) and/or the flocculating agent is then interrupted so that the suspension, in particular the sewage sludge (K), has a defined, specifically a first, floc-comprising state at that moment. The suspension, in particular the sewage sludge (K), is now fed to a further mixing stage (M2, MM). In this further mixing stage (M2, MM), the same (F1) or another (F2, F3) flocculant or flocculating agent is added in a quantity which is predefined and which, starting from the defined state of the suspension, in particular the sewage sludge (K), causes a desired amount of flocs in the suspension, in particular the sewage sludge (K). The resulting mixture is then fed directly or indirectly to a solid/liquid separation system.
IPC 8 full level
C02F 1/52 (2006.01); C02F 11/147 (2019.01); G01N 15/00 (2006.01); G01N 15/02 (2006.01); G06T 7/00 (2017.01)
CPC (source: EP US)
C02F 11/147 (2018.12 - EP US); G01N 15/0227 (2013.01 - EP US); G01N 15/06 (2013.01 - EP); G01N 15/1433 (2024.01 - EP US); C02F 1/5209 (2013.01 - EP); C02F 2209/105 (2013.01 - EP US); G01N 15/075 (2024.01 - EP); G01N 2015/0092 (2013.01 - EP); G01N 2015/0687 (2013.01 - EP); G01N 2015/1486 (2013.01 - EP US); G01N 2015/1493 (2013.01 - EP)
Citation (search report)
See references of WO 2020007978A1
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
DOCDB simple family (publication)
WO 2020007978 A1 20200109; DE 102018116196 A1 20200109; EP 3717410 A1 20201007; US 2021261454 A1 20210826
DOCDB simple family (application)
EP 2019067990 W 20190704; DE 102018116196 A 20180704; EP 19736687 A 20190704; US 201917253734 A 20190704