SE7507897L - PROCEDURE FOR DESTRUCTION OF FORMALDEHYDAL WASTE WATER - Google Patents
PROCEDURE FOR DESTRUCTION OF FORMALDEHYDAL WASTE WATERInfo
- Publication number
- SE7507897L SE7507897L SE7507897A SE7507897A SE7507897L SE 7507897 L SE7507897 L SE 7507897L SE 7507897 A SE7507897 A SE 7507897A SE 7507897 A SE7507897 A SE 7507897A SE 7507897 L SE7507897 L SE 7507897L
- Authority
- SE
- Sweden
- Prior art keywords
- waste water
- formaldehydal
- destruction
- procedure
- formaldehyde
- Prior art date
Links
- 239000002351 wastewater Substances 0.000 title abstract 2
- 230000006378 damage Effects 0.000 title 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- 239000000126 substance Substances 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
- C02F1/722—Oxidation by peroxides
Landscapes
- Life Sciences & Earth Sciences (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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The waste water is first preheated with alkaline-reacting substances to a temperature of at least 50 DEG C. As a consequence of this pretreatment, to remove the formaldehyde only 10 to 35% by weight of the amount of hydrogen peroxide equivalent to the formaldehyde is required.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7432527A FR2286111A2 (en) | 1974-09-26 | 1974-09-26 | TREATMENT PROCESS FOR WASTE WATER CONTAINING FORMALDEHYDE |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7507897L true SE7507897L (en) | 1976-03-29 |
SE432416B SE432416B (en) | 1984-04-02 |
Family
ID=9143479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7507897A SE432416B (en) | 1974-09-26 | 1975-07-10 | PROCEDURE FOR DETERMINING THE FORMAL PERIODIC WASTE WATER THROUGH TREATMENT WITH WHEAT PEROXIDE |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS56114B2 (en) |
AT (1) | AT339221B (en) |
BE (1) | BE833837R (en) |
CH (1) | CH609654A5 (en) |
DE (1) | DE2536506C2 (en) |
FR (1) | FR2286111A2 (en) |
GB (1) | GB1511876A (en) |
IT (1) | IT1047959B (en) |
NL (1) | NL185915C (en) |
NO (1) | NO139821C (en) |
SE (1) | SE432416B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2927912A1 (en) * | 1979-07-11 | 1981-01-29 | Bayer Ag | WATER TREATMENT METHOD |
JPS5888413U (en) * | 1981-12-09 | 1983-06-15 | 日本高周波株式会社 | Output stabilization circuit for permanent magnet magnetron oscillator |
DE4314521C2 (en) * | 1993-05-03 | 1996-05-30 | Eisenmann Kg Maschbau | Process for the purification of organically polluted industrial waste water |
CN111547878A (en) * | 2020-04-29 | 2020-08-18 | 广东工业大学 | High-efficiency low-consumption formaldehyde wastewater treatment method |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1806732A1 (en) * | 1968-11-02 | 1970-05-21 | Klein Albert Kg | Sterilisation of sewage purification sludge |
US3617582A (en) * | 1970-03-02 | 1971-11-02 | Du Pont | Process for detoxifying cyanide waste waters |
JPS53280B2 (en) * | 1971-09-09 | 1978-01-06 | ||
FR2267984B1 (en) * | 1974-04-22 | 1976-12-17 | Degussa |
-
1974
- 1974-09-26 FR FR7432527A patent/FR2286111A2/en active Granted
-
1975
- 1975-07-10 SE SE7507897A patent/SE432416B/en not_active IP Right Cessation
- 1975-08-05 NO NO752749A patent/NO139821C/en unknown
- 1975-08-16 DE DE2536506A patent/DE2536506C2/en not_active Expired
- 1975-08-26 AT AT659575A patent/AT339221B/en not_active IP Right Cessation
- 1975-08-29 NL NLAANVRAGE7510251,A patent/NL185915C/en not_active IP Right Cessation
- 1975-09-03 IT IT69200/75A patent/IT1047959B/en active
- 1975-09-15 GB GB37743/75A patent/GB1511876A/en not_active Expired
- 1975-09-23 JP JP11435975A patent/JPS56114B2/ja not_active Expired
- 1975-09-24 CH CH1236375A patent/CH609654A5/en not_active IP Right Cessation
- 1975-09-25 BE BE6045183A patent/BE833837R/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS56114B2 (en) | 1981-01-06 |
FR2286111B2 (en) | 1979-06-01 |
NL7510251A (en) | 1976-03-30 |
JPS5161174A (en) | 1976-05-27 |
GB1511876A (en) | 1978-05-24 |
IT1047959B (en) | 1980-10-20 |
NL185915B (en) | 1990-03-16 |
DE2536506C2 (en) | 1985-06-13 |
SE432416B (en) | 1984-04-02 |
NO752749L (en) | 1976-03-29 |
FR2286111A2 (en) | 1976-04-23 |
DE2536506A1 (en) | 1976-08-19 |
NO139821C (en) | 1979-05-16 |
ATA659575A (en) | 1977-01-15 |
AT339221B (en) | 1977-10-10 |
NO139821B (en) | 1979-02-05 |
CH609654A5 (en) | 1979-03-15 |
BE833837R (en) | 1976-03-25 |
NL185915C (en) | 1990-08-16 |
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Legal Events
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---|---|---|---|
NUG | Patent has lapsed |
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