EP 0681506 A1 19951115 - BASIN FOR ELIMINATING FLOATING PARTICLES FROM SEWAGE WATER.
Title (en)
BASIN FOR ELIMINATING FLOATING PARTICLES FROM SEWAGE WATER.
Title (de)
BECKEN ZUR ELIMINATION VON SCHWEBETEILCHEN AUS ABWÄSSERN.
Title (fr)
BASSIN PERMETTANT D'ELIMINER DES PARTICULES EN SUSPENSION D'EAUX USEES.
Publication
Application
Priority
- DE 9400073 W 19940125
- DE 4302321 A 19930128
Abstract (en)
[origin: DE4302321C1] Tank (10) has the a waste water filter (16) provided at the base of the tank. One or more aeration elements (22) extend downwards from the underside of this filter, the elements having outlet pipes (24) for water which passes through filter. The aeration elements are provided with valves (28) which control the outlet flow of waste water, and an air supply pipe (26) leads into the elements. This pipe is arranged so that the air flows through the aeration elements and the filter as soon as the valves (28) are closed. A device (30) for removing sedimented particles and/or particles which have accumulated on the filter, is located above the filter. USE/ADVANTAGE - Used esp. for removing phosphate-contg. particles from waste water, e.g. in sewage treatment plants. The effectiveness of the sewage treatment is improved and suspended particles are eliminated from the resulting waste water. The need for a separate phosphate-removal reactor tank is avoided.
IPC 1-7
IPC 8 full level
B01D 29/03 (2006.01); B01D 36/04 (2006.01); C02F 3/06 (2006.01); C02F 3/12 (2006.01); C02F 3/20 (2006.01); C02F 3/28 (2006.01)
CPC (source: EP)
B01D 29/03 (2013.01); B01D 29/6484 (2013.01); B01D 29/66 (2013.01); B01D 36/04 (2013.01); C02F 3/06 (2013.01); C02F 3/1215 (2013.01); C02F 3/20 (2013.01); C02F 3/2806 (2013.01); Y02W 10/10 (2015.05)
Citation (search report)
See references of WO 9416794A1
Designated contracting state (EPC)
AT BE CH DE DK FR GB LI NL
DOCDB simple family (publication)
DE 4302321 C1 19940317; AU 5879294 A 19940815; CN 1091398 A 19940831; EP 0681506 A1 19951115; WO 9416794 A1 19940804
DOCDB simple family (application)
DE 4302321 A 19930128; AU 5879294 A 19940125; CN 94101951 A 19940128; DE 9400073 W 19940125; EP 94904974 A 19940125