YU692A - PROCEDURE FOR PURIFICATION OF AQUEOUS SOLUTIONS CONTAMINATED WITH NITRATE IONS - Google Patents
PROCEDURE FOR PURIFICATION OF AQUEOUS SOLUTIONS CONTAMINATED WITH NITRATE IONSInfo
- Publication number
- YU692A YU692A YU692A YU692A YU692A YU 692 A YU692 A YU 692A YU 692 A YU692 A YU 692A YU 692 A YU692 A YU 692A YU 692 A YU692 A YU 692A
- Authority
- YU
- Yugoslavia
- Prior art keywords
- calcium
- purification
- aqueous solutions
- nitrate
- nitrate ions
- Prior art date
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
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/163—Nitrates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
-
- 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
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Fertilizers (AREA)
- Extraction Or Liquid Replacement (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Treatment Of Sludge (AREA)
Abstract
Process for the purification of aqueous solutions contaminated with nitrate ions. This process is characterised in that it consists in precipitating double or mixed hydrated calcium nitroaluminates, such as especially calcium mononitroaluminate hydrate, by addition of at least one agent introducing the element aluminium and at least one agent introducing the element calcium into the solutions to be treated, the overall molar ratio of the element aluminium to nitrate, Al/NO3, being higher than 1, the overall molar ratio of calcium to nitrate, Ca/NO3, being greater than 2, and in that the precipitation reaction is performed with stirring and at basic pH, preferably higher than 10.5. The process according to the invention is intended especially for the treatment of polluted waters such as domestic sewage and industrial effluents and for the treatment of liquid manure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9100260A FR2671340B1 (en) | 1991-01-08 | 1991-01-08 | PROCESS FOR SEPARATING NITRATE IONS IN SOLUTION. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| YU692A true YU692A (en) | 1994-06-10 |
Family
ID=9408597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| YU692A YU692A (en) | 1991-01-08 | 1992-01-06 | PROCEDURE FOR PURIFICATION OF AQUEOUS SOLUTIONS CONTAMINATED WITH NITRATE IONS |
Country Status (15)
| Country | Link |
|---|---|
| EP (1) | EP0494836B1 (en) |
| JP (1) | JPH0557289A (en) |
| AT (1) | ATE97115T1 (en) |
| CA (1) | CA2058841A1 (en) |
| CZ (1) | CZ3392A3 (en) |
| DE (1) | DE69200021T2 (en) |
| ES (1) | ES2048609T3 (en) |
| FR (1) | FR2671340B1 (en) |
| HU (1) | HU9200067D0 (en) |
| IE (1) | IE920042A1 (en) |
| MX (1) | MX9200045A (en) |
| NZ (1) | NZ241236A (en) |
| PL (1) | PL293108A1 (en) |
| SK (1) | SK3392A3 (en) |
| YU (1) | YU692A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2088749B1 (en) * | 1995-01-13 | 1997-03-01 | Pitarch Dionisio Mulet | SWINE AND SIMILAR WASTE PURIFICATION INSTALLATION. |
| FR2826887B3 (en) * | 2001-07-09 | 2003-09-05 | Sagace | STABILIZATION TREATMENT OF REFIOM, OR OTHER WASTE AND SIMILAR SPECIAL INDUSTRIAL BYPRODUCTS |
| FR2826886B1 (en) * | 2001-07-09 | 2003-09-26 | Sagace | STABILIZATION TREATMENT OF REFIOM, AND OTHER WASTE OR SIMILAR SPECIAL INDUSTRIAL BY-PRODUCTS |
| CN105481071B (en) * | 2016-01-08 | 2018-01-23 | 天津理工大学 | A kind of desalination method containing high-concentration sodium nitrate and/or Alkitrate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3711356A1 (en) * | 1987-04-02 | 1988-10-20 | Hoelter Heinz | Process for the preparation of a fertiliser |
-
1991
- 1991-01-08 FR FR9100260A patent/FR2671340B1/en not_active Expired - Fee Related
-
1992
- 1992-01-06 YU YU692A patent/YU692A/en unknown
- 1992-01-07 CA CA 2058841 patent/CA2058841A1/en not_active Abandoned
- 1992-01-07 IE IE004292A patent/IE920042A1/en unknown
- 1992-01-07 SK SK33-92A patent/SK3392A3/en unknown
- 1992-01-07 CZ CS9233A patent/CZ3392A3/en unknown
- 1992-01-07 MX MX9200045A patent/MX9200045A/en unknown
- 1992-01-07 PL PL29310892A patent/PL293108A1/en unknown
- 1992-01-07 NZ NZ241236A patent/NZ241236A/en unknown
- 1992-01-08 ES ES92420007T patent/ES2048609T3/en not_active Expired - Lifetime
- 1992-01-08 HU HU9200067A patent/HU9200067D0/en unknown
- 1992-01-08 DE DE1992600021 patent/DE69200021T2/en not_active Expired - Fee Related
- 1992-01-08 JP JP3884792A patent/JPH0557289A/en active Pending
- 1992-01-08 AT AT92420007T patent/ATE97115T1/en not_active IP Right Cessation
- 1992-01-08 EP EP19920420007 patent/EP0494836B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0494836B1 (en) | 1993-11-10 |
| NZ241236A (en) | 1993-10-26 |
| CA2058841A1 (en) | 1992-07-09 |
| SK3392A3 (en) | 1993-12-08 |
| MX9200045A (en) | 1992-08-01 |
| CZ3392A3 (en) | 1993-04-14 |
| DE69200021T2 (en) | 1994-06-01 |
| DE69200021D1 (en) | 1993-12-16 |
| HU9200067D0 (en) | 1992-04-28 |
| JPH0557289A (en) | 1993-03-09 |
| EP0494836A1 (en) | 1992-07-15 |
| ATE97115T1 (en) | 1993-11-15 |
| IE920042A1 (en) | 1992-07-15 |
| FR2671340A1 (en) | 1992-07-10 |
| PL293108A1 (en) | 1992-09-21 |
| FR2671340B1 (en) | 1994-05-20 |
| ES2048609T3 (en) | 1994-03-16 |
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