FR2432480A1 - Secondary purificn. of waste water by percolation through peat - having layers based on granular filter beds of sand, gravel, etc. - Google Patents
Secondary purificn. of waste water by percolation through peat - having layers based on granular filter beds of sand, gravel, etc.Info
- Publication number
- FR2432480A1 FR2432480A1 FR7823150A FR7823150A FR2432480A1 FR 2432480 A1 FR2432480 A1 FR 2432480A1 FR 7823150 A FR7823150 A FR 7823150A FR 7823150 A FR7823150 A FR 7823150A FR 2432480 A1 FR2432480 A1 FR 2432480A1
- Authority
- FR
- France
- Prior art keywords
- peat
- bed
- granular filter
- waste water
- purificn
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
This is a secondary, treatment for waste water from industrial or domestic sources which has already been clarified by screening, settling etc. The water is percolated by gravity through two layers of peat resting on a granular filter bed of sand or gravel etc. Pref. the water is passed through a first peat bed of 5-30 cm. thickness on a first granular filter bed and then through a second peat bed of 10-80 cm. thickness on another granular fitler bed. Alternatively, the water can be passed through a single peat bed comprising two superimposed layers of different types of peat on top of a granular filter bed. Used for second-stage purificn. of waste water prior to disposal in rivers, public authority drains etc. It is a simple and inexpensive treatment which can eliminate the use of additives, replace activated sludge treatment and does not involve aeration, agitation or decanting. The values of B.O.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7823150A FR2432480A1 (en) | 1978-08-04 | 1978-08-04 | Secondary purificn. of waste water by percolation through peat - having layers based on granular filter beds of sand, gravel, etc. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7823150A FR2432480A1 (en) | 1978-08-04 | 1978-08-04 | Secondary purificn. of waste water by percolation through peat - having layers based on granular filter beds of sand, gravel, etc. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2432480A1 true FR2432480A1 (en) | 1980-02-29 |
FR2432480B1 FR2432480B1 (en) | 1984-03-16 |
Family
ID=9211628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7823150A Granted FR2432480A1 (en) | 1978-08-04 | 1978-08-04 | Secondary purificn. of waste water by percolation through peat - having layers based on granular filter beds of sand, gravel, etc. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2432480A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2659992C2 (en) * | 2013-04-26 | 2018-07-04 | Упонор Инфра Ой | Arrangement for on-site treatment of greywater effluent |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6137C (en) * | 1900-01-01 | |||
CH170459A (en) * | 1933-11-18 | 1934-07-15 | Oskar Dr Acklin | Process for wastewater purification using peat and a device for carrying out the process. |
CA977471A (en) * | 1972-05-26 | 1975-11-04 | Universite De Sherbrooke | Apparatus for use in the removal of metallic ions from metal-contaminated waters |
-
1978
- 1978-08-04 FR FR7823150A patent/FR2432480A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6137C (en) * | 1900-01-01 | |||
CH170459A (en) * | 1933-11-18 | 1934-07-15 | Oskar Dr Acklin | Process for wastewater purification using peat and a device for carrying out the process. |
CA977471A (en) * | 1972-05-26 | 1975-11-04 | Universite De Sherbrooke | Apparatus for use in the removal of metallic ions from metal-contaminated waters |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2659992C2 (en) * | 2013-04-26 | 2018-07-04 | Упонор Инфра Ой | Arrangement for on-site treatment of greywater effluent |
Also Published As
Publication number | Publication date |
---|---|
FR2432480B1 (en) | 1984-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licences | ||
ST | Notification of lapse | ||
AR | Application made for restoration | ||
DI | Inadmissibility of an action of restoration |