GB1495339A - Process for detoxificating aqueous formaldehyde-containing effluents - Google Patents

Process for detoxificating aqueous formaldehyde-containing effluents

Info

Publication number
GB1495339A
GB1495339A GB15608/75A GB1560875A GB1495339A GB 1495339 A GB1495339 A GB 1495339A GB 15608/75 A GB15608/75 A GB 15608/75A GB 1560875 A GB1560875 A GB 1560875A GB 1495339 A GB1495339 A GB 1495339A
Authority
GB
United Kingdom
Prior art keywords
detoxificating
effluent
effluents
april
aqueous formaldehyde
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
Application number
GB15608/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Degussa GmbH filed Critical Degussa GmbH
Publication of GB1495339A publication Critical patent/GB1495339A/en
Expired legal-status Critical Current

Links

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)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1495339 Detoxificating formaldehyde-containing effluents DEUTSCHE GOLD-UND SILBER SCHEIDEANSTALT 16 April 1975 [22 April 1974] 15608/75 Heading C1C A process for detoxificating a formaldehydecontaining aqueous effluent comprises treating the effluent with hydrogen peroxide in the presence of an alkali at a starting temperature in the range from 10‹ to 35‹ C. The hydrogen peroxide may be a 30 to 50% by weight solution, the alkali NaOH, and the effluent may be neutralized with a mineral acid and then subjected to a biological purification. The invention may be used at both high and low formaldehyde concentrations, e.g. from 0À01 to 10% by weight in the effluents, with a reaction time of from 3 to 30 minutes.
GB15608/75A 1974-04-22 1975-04-16 Process for detoxificating aqueous formaldehyde-containing effluents Expired GB1495339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7413932A FR2267984B1 (en) 1974-04-22 1974-04-22

Publications (1)

Publication Number Publication Date
GB1495339A true GB1495339A (en) 1977-12-14

Family

ID=9137943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15608/75A Expired GB1495339A (en) 1974-04-22 1975-04-16 Process for detoxificating aqueous formaldehyde-containing effluents

Country Status (11)

Country Link
JP (1) JPS5422697B2 (en)
AT (1) AT336512B (en)
BE (1) BE828198A (en)
CH (1) CH599060A5 (en)
DE (1) DE2511432B2 (en)
FR (1) FR2267984B1 (en)
GB (1) GB1495339A (en)
IT (1) IT1030361B (en)
NL (1) NL7504745A (en)
NO (1) NO751017L (en)
SE (1) SE7503191L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114269697A (en) * 2019-08-28 2022-04-01 阿科玛法国公司 Elimination of formaldehyde in wastewater by oxidation treatment

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2286111A2 (en) * 1974-09-26 1976-04-23 Degussa TREATMENT PROCESS FOR WASTE WATER CONTAINING FORMALDEHYDE
JPS52150778A (en) * 1976-06-11 1977-12-14 Kureha Chem Ind Co Ltd Treatment of waste soda solution
DE3221795A1 (en) * 1982-06-09 1983-12-15 Hugo Petersen Gesellschaft für verfahrenstechnischen Anlagenbau mbH & Co KG, 6200 Wiesbaden Process for the continuous elimination of formaldehyde from a gas stream
ES8505166A1 (en) * 1983-12-30 1985-05-16 Llatas Escrig Ignacio Process for waste water purification.
DE3412581A1 (en) * 1984-04-04 1985-10-24 KPA Kiener Pyrolyse Gesellschaft für thermische Abfallverwertung mbH, 7000 Stuttgart METHOD FOR PURIFYING GAS FROM PYROLYSIS PLANTS OF WASTE
DE3534677C1 (en) * 1985-09-28 1987-04-30 Degussa Process for cleaning industrial gases
DE4314521C2 (en) * 1993-05-03 1996-05-30 Eisenmann Kg Maschbau Process for the purification of organically polluted industrial waste water

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114269697A (en) * 2019-08-28 2022-04-01 阿科玛法国公司 Elimination of formaldehyde in wastewater by oxidation treatment
US20220267179A1 (en) * 2019-08-28 2022-08-25 Arkema France Elimination of formaldehyde in wastewater through oxidation treatment

Also Published As

Publication number Publication date
CH599060A5 (en) 1978-05-12
SE7503191L (en) 1975-10-23
BE828198A (en) 1975-10-21
DE2511432B2 (en) 1980-07-17
JPS512256A (en) 1976-01-09
AT336512B (en) 1977-05-10
IT1030361B (en) 1979-03-30
ATA304475A (en) 1976-08-15
JPS5422697B2 (en) 1979-08-08
FR2267984A1 (en) 1975-11-14
DE2511432A1 (en) 1975-10-30
NL7504745A (en) 1975-10-24
FR2267984B1 (en) 1976-12-17
NO751017L (en) 1975-10-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19950415