EP 2874956 A1 20150527 - ANAEROBIC WASTE WATER TREATMENT HAVING SLUDGE DEGASSING AND SLUDGE FEEDBACK, AND TREATMENT PLANT
Title (en)
ANAEROBIC WASTE WATER TREATMENT HAVING SLUDGE DEGASSING AND SLUDGE FEEDBACK, AND TREATMENT PLANT
Title (de)
ANAEROBE ABWASSERBEHANDLUNG MIT SCHLAMMENTGASUNG UND SCHLAMMRÜCKFUHR SOWIE BEHANDLUNGSANLAGE
Title (fr)
TRAITEMENT ANAÉROBIE DES EAUX USÉES AVEC DÉGAZAGE ET RECYCLAGE DES BOUES, ET INSTALLATION DE TRAITEMENT
Publication
Application
Priority
- DE 102012212675 A 20120719
- EP 2013064437 W 20130709
Abstract (en)
[origin: WO2014012817A1] The invention relates to a method and an associated plant for biological waste water cleaning by means of biological sludge (2) having anaerobic micro-organisms, wherein the biological sludge (2) is situated in a reactor tank (3), the waste water (1) is fed under the biological sludge (2), flows through the biological sludge (2) from bottom to top and is discharged above the biological sludge (2). A reduction in degradation performance is counteracted by degassing biological sludge (2) that is discharged together with the waste water (1) from the reactor tank (3) and at least partially feeding said biological sludge back into the reactor tank (3).
IPC 8 full level
CPC (source: CN EP)
C02F 1/38 (2013.01 - CN EP); C02F 3/2806 (2013.01 - CN EP); C02F 3/2846 (2013.01 - CN EP); Y02E 50/30 (2013.01 - EP)
Citation (search report)
See references of WO 2014012817A1
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 2014012817 A1 20140123; CN 104470859 A 20150325; DE 102012212675 A1 20140227; EP 2874956 A1 20150527
DOCDB simple family (application)
EP 2013064437 W 20130709; CN 201380038341 A 20130709; DE 102012212675 A 20120719; EP 13734439 A 20130709