GB1495928A - Treatment of effluent - Google Patents
Treatment of effluentInfo
- Publication number
- GB1495928A GB1495928A GB4970373A GB4970373A GB1495928A GB 1495928 A GB1495928 A GB 1495928A GB 4970373 A GB4970373 A GB 4970373A GB 4970373 A GB4970373 A GB 4970373A GB 1495928 A GB1495928 A GB 1495928A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquor
- aqueous alkali
- combustion
- scrubbing
- sulphur
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
1495928 Treatment of sulphur containing scrub liquors PEABODY HOLMES Ltd 2 Dec 1974 [25 Oct 1973 29 Jan 1974 16 July 1974] 49703/73 04094/74 and 31380/74 Heading C1A Effluent aqueous alkali liquor containing sulphur compounds obtained in the removal of sulphur compounds contained in a gas stream by scrubbing with an aqueous alkali wash liquor is thermally treated in a combustion chamber under a reducing atmosphere to produce a gaseous combustion product comprising hydrogen sulphide having finely divided particulate matter entrained therein which is quenched by passing through a scrubber to allow the particulate matter to pass into aqueous solution and form an alkali liquor suitable for recycle to the gas scrubbing circuit; the effluent liquor being concentrated prior to the thermal treatment by direct contact with the combustion product. The process is described as being used to treat the waste liquor obtained in a process for the removal of H 2 S and HCN from a gaseous medium in which process the H 2 S is oxidized in the scrubbing liquor to sulphur and the hydrogen cyanide is removed from the gas stream by reaction with a polysulphide in an aqueous alkali liquor to form a thiocyanate the solution then being treated as described above to form an aqueous alkali solution which is made up with polysulphide before being re-used in the gas scrubbing step. The evaporation, combustion and thermal treatment may be carried out in the same reaction vessel, the combustion products and evaporated vapour being combined and passed together into the scrubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4970373A GB1495928A (en) | 1974-12-02 | 1974-12-02 | Treatment of effluent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4970373A GB1495928A (en) | 1974-12-02 | 1974-12-02 | Treatment of effluent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1495928A true GB1495928A (en) | 1977-12-21 |
Family
ID=10453258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4970373A Expired GB1495928A (en) | 1974-12-02 | 1974-12-02 | Treatment of effluent |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1495928A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0038969A1 (en) * | 1980-04-26 | 1981-11-04 | Linde Aktiengesellschaft | Process for treating an aqueous alcaline solution of anthraquinone-disulfonic acid salts |
| CN113277639A (en) * | 2021-03-31 | 2021-08-20 | 李晟贤 | Test gas sewage treatment method |
-
1974
- 1974-12-02 GB GB4970373A patent/GB1495928A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0038969A1 (en) * | 1980-04-26 | 1981-11-04 | Linde Aktiengesellschaft | Process for treating an aqueous alcaline solution of anthraquinone-disulfonic acid salts |
| CN113277639A (en) * | 2021-03-31 | 2021-08-20 | 李晟贤 | Test gas sewage treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |