GB2000757A - Effluent treatment - Google Patents
Effluent treatmentInfo
- Publication number
- GB2000757A GB2000757A GB7828295A GB7828295A GB2000757A GB 2000757 A GB2000757 A GB 2000757A GB 7828295 A GB7828295 A GB 7828295A GB 7828295 A GB7828295 A GB 7828295A GB 2000757 A GB2000757 A GB 2000757A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphide
- sulphides
- catalyst
- effluent treatment
- effluent
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 abstract 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 150000004763 sulfides Chemical class 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000003518 caustics Substances 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 150000002697 manganese compounds Chemical class 0.000 abstract 1
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 abstract 1
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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
Abstract
This invention relates to a method of treating spent caustic effluents containing sulphides from hydrocarbon cracking processes. The method involves aerial oxidation of the sulphides in the presence of a manganese compound as catalyst. It is believed that the process converts the sulphide to the thiosulphate which is relatively innocuous to both animal and marine life when compared with conventional methods which convert sulphide to SO2 or H2S. The catalyst used is also non-toxic and the alkali component of the effluent is recoverable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7828295A GB2000757A (en) | 1977-07-07 | 1978-06-29 | Effluent treatment |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2851577 | 1977-07-07 | ||
| GB7828295A GB2000757A (en) | 1977-07-07 | 1978-06-29 | Effluent treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2000757A true GB2000757A (en) | 1979-01-17 |
Family
ID=26259409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7828295A Withdrawn GB2000757A (en) | 1977-07-07 | 1978-06-29 | Effluent treatment |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2000757A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0063821A1 (en) * | 1981-04-29 | 1982-11-03 | PRODECO S.p.A. | A process for the treatment of sulfide containing waters |
-
1978
- 1978-06-29 GB GB7828295A patent/GB2000757A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0063821A1 (en) * | 1981-04-29 | 1982-11-03 | PRODECO S.p.A. | A process for the treatment of sulfide containing waters |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |