GB804544A - Improvements in and relating to the treatment of effluents from coal carbonising plants - Google Patents
Improvements in and relating to the treatment of effluents from coal carbonising plantsInfo
- Publication number
- GB804544A GB804544A GB2662355A GB2662355A GB804544A GB 804544 A GB804544 A GB 804544A GB 2662355 A GB2662355 A GB 2662355A GB 2662355 A GB2662355 A GB 2662355A GB 804544 A GB804544 A GB 804544A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bio
- plants
- chemical oxidation
- coal
- liquors
- 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
- C02F3/1231—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)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Ammoniacal liquor from coal carbonizing plants in steam-distilled to remove free ammonia, subjected to bio-chemical oxidation and finally redistilled with lime to remove the fixed ammonia. Liquors from plants operating with vertical retorts are preferably dephenolated e.g. by solvent extraction with butyl acetate or methyl isobutyl ketone, and diluted, e.g. to about twice the volume of the original liquor, after the initial treatment to remove free ammonia and before the bio-chemical oxidation. The bio-chemical oxidation is effected after the addition of an aqueous solution of phosphates, containing e.g. disodium hydrogen phosphate and potassium dihydrogen phosphate in the ratio of 10 to 1, using the activated sludge process or percolating filters. The treated liquors are suitable for discharge into rivers or drainage systems.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2662355A GB804544A (en) | 1955-09-16 | 1955-09-16 | Improvements in and relating to the treatment of effluents from coal carbonising plants |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2662355A GB804544A (en) | 1955-09-16 | 1955-09-16 | Improvements in and relating to the treatment of effluents from coal carbonising plants |
Publications (1)
Publication Number | Publication Date |
---|---|
GB804544A true GB804544A (en) | 1958-11-19 |
Family
ID=10246543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2662355A Expired GB804544A (en) | 1955-09-16 | 1955-09-16 | Improvements in and relating to the treatment of effluents from coal carbonising plants |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB804544A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3537986A (en) * | 1967-10-19 | 1970-11-03 | Sumitomo Kikai Kogyo Kk | Silver recovery process |
US3540189A (en) * | 1967-04-27 | 1970-11-17 | Hermann Siewers | Process for destroying ammonia contained in waters resulting from the operation of coke ovens |
-
1955
- 1955-09-16 GB GB2662355A patent/GB804544A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3540189A (en) * | 1967-04-27 | 1970-11-17 | Hermann Siewers | Process for destroying ammonia contained in waters resulting from the operation of coke ovens |
US3537986A (en) * | 1967-10-19 | 1970-11-03 | Sumitomo Kikai Kogyo Kk | Silver recovery process |
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