Processing

Please wait...

Settings

Settings

Goto Application

1. WO1979000640 - SYSTEM FOR PROCESSING USED WATERS BY THE BIOLOGICAL PROCESS OF ACTIVATED SLUDGE

Publication Number WO/1979/000640
Publication Date 06.09.1979
International Application No. PCT/CH1979/000020
International Filing Date 08.02.1979
IPC
C02F 3/12 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
02Aerobic processes
12Activated sludge processes
CPC
C02F 3/12
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
02Aerobic processes
12Activated sludge processes
C02F 3/1242
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
02Aerobic processes
12Activated sludge processes
1236Particular type of activated sludge installations
1242Small compact installations for use in homes, apartment blocks, hotels or the like
Y02W 10/15
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
10Technologies for wastewater treatment
10Biological treatment of water, waste water, or sewage
15Aerobic processes
Applicants
Inventors
Priority Data
1790/7818.02.1978CH
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(EN) SYSTEM FOR PROCESSING USED WATERS BY THE BIOLOGICAL PROCESS OF ACTIVATED SLUDGE
(FR) INSTALLATION DE TRAITEMENT DES EAUX USEES PAR LE PROCEDE BIOLOGIQUE DES BOUES ACTIVEES
Abstract
(EN)
The system comprises, besides an aeration zone and a clarification zone separated by a vertical wall (14), at least an intermediate filtering-flocculation zone limited by the vertical wall (14) and an oblique wall (12) under the clarification zone (11). Under this filtering-flocculation zone is a concentration zone (13) of the sludge limited by the vertical wall (14) and an oblique wall (10) of the basin of which the slope of 60 approximately is the same as that of the wall (12) and of about the same height. The width of the horizontal passages between the walls is such that the current of water and sludge which goes through them tends to be laminar. According to one alternative of execution the zone of concentration of the sludge does not communicate directly with the aeration zone, but through an outer conduit which brings the concentrated sludge into the aeration zone.
(FR)
L"installation comprend, en plus d"une zone d"aeration et une zone de clarification separees par une paroi verticale (14), au moins une zone intermediaire de filtration-floculation limitee par la paroi verticale (14) et une paroi oblique (12) en-dessous de la zone de clarification (11). En-dessous de cette zone de filtration-floculation se trouve une zone de concentration des boues (13) limitee par la paroi verticale (14) et une paroi oblique (10) du bassin dont la pente d"environ 60 est la meme que celle de la paroi (12) et approximativement de meme hauteur. La largeur des passages horizontaux entre les parois est telle que le courant d"eau et de boues qui les traverse tend a etre laminaire. Selon une variante d"execution la zone de concentration des boues ne communique pas directement avec la zone d"aeration, mais par l"intermediaire d"un conduit exterieur qui ramene les boues concentrees dans la zone d"aeration.
Also published as
Latest bibliographic data on file with the International Bureau