AT306654B - Process for removing cyan from waste water using formaldehyde - Google Patents
Process for removing cyan from waste water using formaldehydeInfo
- Publication number
- AT306654B AT306654B AT346671A AT346671A AT306654B AT 306654 B AT306654 B AT 306654B AT 346671 A AT346671 A AT 346671A AT 346671 A AT346671 A AT 346671A AT 306654 B AT306654 B AT 306654B
- Authority
- AT
- Austria
- Prior art keywords
- formaldehyde
- waste water
- removing cyan
- cyan
- waste
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
-
- 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
- C02F2101/18—Cyanides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Textile Engineering (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUBU000533 | 1970-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT306654B true AT306654B (en) | 1973-04-25 |
Family
ID=10993838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT346671A AT306654B (en) | 1970-04-22 | 1971-04-22 | Process for removing cyan from waste water using formaldehyde |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT306654B (en) |
CH (1) | CH569673A5 (en) |
GB (1) | GB1347025A (en) |
-
1971
- 1971-04-20 CH CH576171A patent/CH569673A5/xx not_active IP Right Cessation
- 1971-04-21 GB GB1054171A patent/GB1347025A/en not_active Expired
- 1971-04-22 AT AT346671A patent/AT306654B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB1347025A (en) | 1974-02-13 |
CH569673A5 (en) | 1975-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |