EP 2297052 A4 20130109 - DEWATERING OF ANAEROBICALLY DIGESTED SLUDGE
Title (en)
DEWATERING OF ANAEROBICALLY DIGESTED SLUDGE
Title (de)
ENTWÄSSERUNG VON ANAEROBEM FAULSCHLAMM
Title (fr)
DÉSHYDRATATION D'UNE BOUE DIGÉRÉE DE MANIÈRE ANAÉROBIE
Publication
Application
Priority
- SE 2009050816 W 20090625
- SE 0801525 A 20080627
Abstract (en)
[origin: WO2009157868A1] A method for treatment of sludge from biogas production plants, said sludge comprising at least partly suspended biological matter, is provided. Said method comprises the steps of elevating the temperature of the sludge; and filtrating the sludge in one or more ultra filtration and/or micro filtration units, whereby a concentrate and a permeate is obtained, said concentrate comprising substantially all said suspended biologica lmatter and said permeate comprising substantially no suspended biological matter.
IPC 8 full level
C02F 11/121 (2019.01); C02F 11/13 (2019.01)
CPC (source: EP SE US)
C02F 1/444 (2013.01 - EP US); C02F 11/121 (2013.01 - EP SE US); C02F 11/13 (2018.12 - EP SE US); C02F 11/18 (2013.01 - EP SE US); C12M 21/04 (2013.01 - EP); C12M 47/02 (2013.01 - EP); C12M 47/12 (2013.01 - EP); C12M 47/20 (2013.01 - EP); C02F 1/441 (2013.01 - EP); C02F 2101/16 (2013.01 - EP); C02F 2303/06 (2013.01 - EP); Y02E 50/30 (2013.01 - EP)
Citation (search report)
- [XY] JP 2008030008 A 20080214 - KANAI EDUCATIONAL INSTITUTION
- [Y] JP 2005342634 A 20051215 - KOBELCO ECO SOLUTIONS CO LTD
- [Y] EP 0536963 A1 19930414 - PORI INT INC [US]
- [Y] JP H10192889 A 19980728 - KURITA WATER IND LTD
- [Y] US 7101482 B2 20060905 - CHAUZY JULIEN [FR], et al
- [Y] JP 2003300096 A 20031021 - MITSUBISHI HEAVY IND LTD
- [Y] DE 102004003071 A1 20050901 - HOLM NIELS CHRISTIAN [DE]
- See references of WO 2009157868A1
Designated contracting state (EPC)
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 SE SI SK TR
DOCDB simple family (publication)
WO 2009157868 A1 20091230; CN 102076617 A 20110525; EP 2297052 A1 20110323; EP 2297052 A4 20130109; SE 0801525 L 20091228; SE 532532 C2 20100216
DOCDB simple family (application)
SE 2009050816 W 20090625; CN 200980124200 A 20090625; EP 09770493 A 20090625; SE 0801525 A 20080627