GB890878A - Improvements in or relating to the purification of industrial effluents - Google Patents
Improvements in or relating to the purification of industrial effluentsInfo
- Publication number
- GB890878A GB890878A GB3450757A GB3450757A GB890878A GB 890878 A GB890878 A GB 890878A GB 3450757 A GB3450757 A GB 3450757A GB 3450757 A GB3450757 A GB 3450757A GB 890878 A GB890878 A GB 890878A
- Authority
- GB
- United Kingdom
- Prior art keywords
- effluents
- effluent
- treatment
- biological
- iron
- 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.)
- Expired
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
- 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
- C02F3/1231—Treatments of toxic sewage
-
- 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)
- Chemical & Material Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Analytical Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
Industrial effluents containing polyhydric phenols, especially gasworks effluents, e.g. the effluent from ammonia stills, are treated with an iron or aluminium salt, e.g. ferric chloride, chlorinated copperas, aluminium sulphate or alum, or with ferrous sulphate (in which case the effluent is subsequently aerated to form the ferric salt in situ), or with a strong mineral acid, e.g. hydrochloric acid; before or after this treatment, the effluent is subjected to a biological purification process, e.g. described in Specification 885,834. In examples the amounts of thiocyanate and phenols in effluents and also their oxygen absorption values are compared when the treatment is applied to effluents before and after biological oxidation. Adjustment of pH to between 6 and 8 by addition of sodium hydroxide is necessary prior to biological oxidation. According to the Provisional Specification the treatment with an iron or aluminium salt or with a strong mineral acid need not be followed or preceded by a biological purification process.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3450757A GB890878A (en) | 1957-11-05 | 1957-11-05 | Improvements in or relating to the purification of industrial effluents |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3450757A GB890878A (en) | 1957-11-05 | 1957-11-05 | Improvements in or relating to the purification of industrial effluents |
Publications (1)
Publication Number | Publication Date |
---|---|
GB890878A true GB890878A (en) | 1962-03-07 |
Family
ID=10366508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3450757A Expired GB890878A (en) | 1957-11-05 | 1957-11-05 | Improvements in or relating to the purification of industrial effluents |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB890878A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0658516A1 (en) * | 1993-12-16 | 1995-06-21 | Haruo Kagawa | Biodegradation process for treating organic waste water |
-
1957
- 1957-11-05 GB GB3450757A patent/GB890878A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0658516A1 (en) * | 1993-12-16 | 1995-06-21 | Haruo Kagawa | Biodegradation process for treating organic waste water |
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