FR2423450A1 - Procede d'elimination des phosphates des eaux residuaires - Google Patents
Procede d'elimination des phosphates des eaux residuairesInfo
- Publication number
- FR2423450A1 FR2423450A1 FR7909954A FR7909954A FR2423450A1 FR 2423450 A1 FR2423450 A1 FR 2423450A1 FR 7909954 A FR7909954 A FR 7909954A FR 7909954 A FR7909954 A FR 7909954A FR 2423450 A1 FR2423450 A1 FR 2423450A1
- Authority
- FR
- France
- Prior art keywords
- waste water
- phosphates
- removing phosphates
- wastewater
- mixture
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/906—Phosphorus containing
- Y10S210/907—Phosphate slimes
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Procédé d'élimination des phosphates des eaux résiduaires. Le procédé consiste à mélanger l'eau résiduaire à l'eau de mer et à ajuster le mélange à un pH de 9-11 pour séparer les phosphates sédimentaires. Le sédiment obtenu peut être utilisé comme fertilisant phosphatique.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4815978A JPS54141050A (en) | 1978-04-21 | 1978-04-21 | Method of removing phosphor in waste water |
JP7989478A JPS5524505A (en) | 1978-06-30 | 1978-06-30 | Removing method for phosphorus in waste water |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2423450A1 true FR2423450A1 (fr) | 1979-11-16 |
Family
ID=26388386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7909954A Withdrawn FR2423450A1 (fr) | 1978-04-21 | 1979-04-19 | Procede d'elimination des phosphates des eaux residuaires |
Country Status (3)
Country | Link |
---|---|
US (1) | US4228003A (fr) |
FR (1) | FR2423450A1 (fr) |
GB (1) | GB2019379A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4284515A (en) * | 1979-12-10 | 1981-08-18 | Stauffer Chemical Company | Process for decreasing elemental phosphorus levels in an aqueous medium |
US5851398A (en) * | 1994-11-08 | 1998-12-22 | Aquatic Bioenhancement Systems, Inc. | Algal turf water purification method |
US11370675B1 (en) | 2022-01-20 | 2022-06-28 | King Abdulaziz University | Removal of ammoniacal nitrogen from landfill leachates |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3522171A (en) * | 1969-01-27 | 1970-07-28 | Fmc Corp | Sewage sludge treatment process |
US4017388A (en) * | 1969-08-22 | 1977-04-12 | Dorr-Oliver Incorporated | Split treatment phosphorus removal from waste |
US3716484A (en) * | 1971-05-10 | 1973-02-13 | Michigan Chem Corp | Process for substantial removal of phosphates from wastewaters |
US4098689A (en) * | 1974-07-05 | 1978-07-04 | Idemitsu Kosan Company, Ltd. | Method of treating waste water with activated sludge |
-
1979
- 1979-04-17 US US06/030,873 patent/US4228003A/en not_active Expired - Lifetime
- 1979-04-19 FR FR7909954A patent/FR2423450A1/fr not_active Withdrawn
- 1979-04-20 GB GB7913890A patent/GB2019379A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB2019379A (en) | 1979-10-31 |
US4228003A (en) | 1980-10-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |