EP 0885041 A1 19981223 - RETAINING FILTER, PLANT AND METHOD FOR TREATING EFFLUENTS
Title (en)
RETAINING FILTER, PLANT AND METHOD FOR TREATING EFFLUENTS
Title (de)
RÜCKHALTEFILTER, ANLAGE UND VERFAHREN ZUR BEHANDLUNG VON ABFLÜSSEN
Title (fr)
FILTRE DE RETENTION, INSTALLATION ET PROCEDE DE TRAITEMENT D'EFFLUENTS
Publication
Application
Priority
- FR 9700326 W 19970221
- FR 9602276 A 19960223
Abstract (en)
[origin: WO9730770A1] A filter for removing bacterial contaminants from effluents, wherein filtering means comprise two mutually facing and spaced apart networks of pipes connected to the filter inlet and the filter outlet for distribution and drainage (14) respectively, and provided with perforations distributed lengthwise along the transverse walls of said pipes. Filter means (16) between the two pipe networks (13, 14) consist of a layer of sand with a size distribution curve within the range defined by A.F.N.O.R. DTU no. 64-1, Ref. P16-603, and remove a substantial part of the bacterial contaminants from the effluent passing through the filter. Distribution means connected to the distribution pipe network (13) deliver the water to be treated to the filter means (16).
IPC 1-7
IPC 8 full level
C02F 9/00 (2006.01)
CPC (source: EP US)
C02F 9/20 (2023.01 - EP US)
Citation (search report)
See references of WO 9730770A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9730770 A1 19970828; BR 9715046 A 20020521; CA 2247519 A1 19970828; EP 0885041 A1 19981223; FR 2745195 A1 19970829; FR 2745195 B1 19980417; US 6440307 B1 20020827
DOCDB simple family (application)
FR 9700326 W 19970221; BR 9715046 A 19970221; CA 2247519 A 19970221; EP 97906243 A 19970221; FR 9602276 A 19960223; US 12573999 A 19990517