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1. (WO1979000129) PURIFYING PROCESS AND DEVICE FOR WASTE WATERS IN A MULTI-STAGE FILTERING INSTALLATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000129 International Application No.: PCT/DE1978/000023
Publication Date: 22.03.1979 International Filing Date: 01.09.1978
IPC:
B01D 37/00 (2006.01) ,C02F 1/28 (2006.01) ,C02F 3/04 (2006.01) ,C02F 3/06 (2006.01) ,C02F 3/10 (2006.01) ,C02F 1/66 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
37
Processes of filtration
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
28
by sorption
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3
Biological treatment of water, waste water, or sewage
02
Aerobic processes
04
using trickle filters
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3
Biological treatment of water, waste water, or sewage
02
Aerobic processes
06
using submerged filters
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3
Biological treatment of water, waste water, or sewage
02
Aerobic processes
10
Packings; Fillings; Grids
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
66
by neutralisation; pH adjustment
Applicants:
Inventors:
Priority Data:
273969002.09.1977DE
Title (EN) PURIFYING PROCESS AND DEVICE FOR WASTE WATERS IN A MULTI-STAGE FILTERING INSTALLATION
(FR) PROCEDE ET DISPOSITIF D"EPURATION D"EAUX USEES DANS UNE INSTALLATION DE FILTRAGE A PLUSIEURS ETAGES
Abstract:
(EN) The waste waters which may have been purified first mechanically (1) are introduced into a reactor (4), in which they undergo during their forced ascension an intensive introduction of very thin air bubbles (oxygen). The reactor contains filling bodies and material for neutralization, biological purification, filtration and/or adsorption, forming a multitude of layers. Then the water goes through a special filtering device (6, 8); repeated introduction of air (7) can be provided between the different systems. The filters comprise, on the one hand, filtering elements partly composed of porous synthetic material, and on the other hand, materials allowing the biological purification and eventually the adsorption.
(FR) Les eaux usees qui, au prealable, ont ete eventuellement epurees (1) mecaniquement, sont introduites dans un reacteur (4), dans lequel elles sont soumises pendant leur ascension forcee a une introduction intense de tres fines bulles d"air (oxygene). Le reacteur contient des corps de remplissage et des materiaux servant a la neutralisation, l"epuration biologique, la filtration et/ou l"adsorption et formant une multitude de couches. Ensuite l"eau traverse un dispositif de filtration special (6, 8); on peut prevoir l"introduction repetee d"air (7) entre les differents filtres. Les filtres comprennent, d"une part, des elements filtrants composes partiellement de matieres synthetiques poreuses, et d"autre part, des materiaux permettant l"epuration biologique et eventuellement l"adsorption.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)