SE9301775L - Means for water purification and its use - Google Patents
Means for water purification and its useInfo
- Publication number
- SE9301775L SE9301775L SE9301775A SE9301775A SE9301775L SE 9301775 L SE9301775 L SE 9301775L SE 9301775 A SE9301775 A SE 9301775A SE 9301775 A SE9301775 A SE 9301775A SE 9301775 L SE9301775 L SE 9301775L
- Authority
- SE
- Sweden
- Prior art keywords
- alkali metal
- alkali
- metal
- alkaline earth
- thiosulphate
- 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
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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)
- Removal Of Specific Substances (AREA)
- Treating Waste Gases (AREA)
Abstract
A water purification composition is disclosed, which comprises an aqueous solution of (A) an alkali metal or alkaline earth metal hydroxide, (B) an alkali metal or ammonium sulphide or sodium, potassium or calcium polysulphides, (C) an alkali metal disulphite, (D) an alkali metal dithionite, and (E) an alkali or alkaline earth metal thiosulphate or ammonium thiosulphate. The composition is used for the treatment of polluted water containing heavy metal ions, e.g. polluted scrubber water from the purification according to the wet method of flue gases from refuse incineration.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9301775A SE501569C2 (en) | 1993-05-25 | 1993-05-25 | Means for water purification and its use |
EP94917236A EP0701536A1 (en) | 1993-05-25 | 1994-05-24 | Water purification composition and its use |
PCT/SE1994/000485 WO1994027917A1 (en) | 1993-05-25 | 1994-05-24 | Water purification composition and its use |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9301775A SE501569C2 (en) | 1993-05-25 | 1993-05-25 | Means for water purification and its use |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9301775D0 SE9301775D0 (en) | 1993-05-25 |
SE9301775L true SE9301775L (en) | 1994-11-26 |
SE501569C2 SE501569C2 (en) | 1995-03-13 |
Family
ID=20390043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9301775A SE501569C2 (en) | 1993-05-25 | 1993-05-25 | Means for water purification and its use |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0701536A1 (en) |
SE (1) | SE501569C2 (en) |
WO (1) | WO1994027917A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2684631C (en) | 2007-05-10 | 2015-10-06 | University Of Georgia Research Foundation, Inc. | Sulfur-based bulk reductants and methods of using same |
CN108862704B (en) * | 2018-06-22 | 2020-11-10 | 成都中建材光电材料有限公司 | Treatment system for cadmium-containing wastewater and use method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3638319A1 (en) * | 1986-11-10 | 1988-05-19 | Babcock Anlagen Ag | Process for treating waste water from flue gas purification plants |
DE8915591U1 (en) * | 1989-05-29 | 1991-02-14 | Straten, Günter, Dipl.-Ing., 5100 Aachen | Composition for treating water containing metal ions and organic and/or inorganic contaminants |
US5122279A (en) * | 1991-04-08 | 1992-06-16 | Romar Technologies Inc. | Ferrous dithionite process and compositions for removing dissolved heavy metals from water |
-
1993
- 1993-05-25 SE SE9301775A patent/SE501569C2/en not_active IP Right Cessation
-
1994
- 1994-05-24 EP EP94917236A patent/EP0701536A1/en not_active Withdrawn
- 1994-05-24 WO PCT/SE1994/000485 patent/WO1994027917A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0701536A1 (en) | 1996-03-20 |
SE9301775D0 (en) | 1993-05-25 |
WO1994027917A1 (en) | 1994-12-08 |
SE501569C2 (en) | 1995-03-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |