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FR2228036A1 - Treatment of waste water and gases contg. sulphites - converting by oxidn. to sulphates with metallic iron as catalyst - Google Patents

Treatment of waste water and gases contg. sulphites - converting by oxidn. to sulphates with metallic iron as catalyst

Info

Publication number
FR2228036A1
FR2228036A1 FR7315624A FR7315624A FR2228036A1 FR 2228036 A1 FR2228036 A1 FR 2228036A1 FR 7315624 A FR7315624 A FR 7315624A FR 7315624 A FR7315624 A FR 7315624A FR 2228036 A1 FR2228036 A1 FR 2228036A1
Authority
FR
France
Prior art keywords
sulphites
sulphates
metallic iron
oxidn
catalyst
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.)
Granted
Application number
FR7315624A
Other languages
French (fr)
Other versions
FR2228036B1 (en
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.)
Lesieur Cotelle SA
Original Assignee
Lesieur Cotelle SA
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 Lesieur Cotelle SA filed Critical Lesieur Cotelle SA
Priority to FR7315624A priority Critical patent/FR2228036A1/en
Priority to DE19742419496 priority patent/DE2419496A1/en
Priority to ES425629A priority patent/ES425629A1/en
Priority to JP4671874A priority patent/JPS5734037B2/ja
Priority to BR352974A priority patent/BR7403529D0/en
Priority to IT5071874A priority patent/IT1015940B/en
Publication of FR2228036A1 publication Critical patent/FR2228036A1/en
Priority to ES446989A priority patent/ES446989A1/en
Application granted granted Critical
Publication of FR2228036B1 publication Critical patent/FR2228036B1/fr
Granted 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
    • C02F1/725—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)
  • Treating Waste Gases (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

Effluents such as those from paper manufacture, contng. sulphites and from scrubbers for the waste gases from sulphurising processes with dissolved SO2, are treated first with caustic soda to bring them to a desired, slightly alkaline concn. of sulphites in soln. and then processed in an enclosed vessel heated by steam in the presence of metallic iron scrap, by the injection of finely dispersed air, enriched air or pure oxygen to convert the sulphites into sulphates at a concentration which is satisfactory to the authorities.
FR7315624A 1973-05-02 1973-05-02 Treatment of waste water and gases contg. sulphites - converting by oxidn. to sulphates with metallic iron as catalyst Granted FR2228036A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7315624A FR2228036A1 (en) 1973-05-02 1973-05-02 Treatment of waste water and gases contg. sulphites - converting by oxidn. to sulphates with metallic iron as catalyst
DE19742419496 DE2419496A1 (en) 1973-05-02 1974-04-23 METHOD AND DEVICE FOR TREATMENT OF SULPHITE-CONTAINING WATER
ES425629A ES425629A1 (en) 1973-05-02 1974-04-24 Treatment of waste water and gases contg. sulphites - converting by oxidn. to sulphates with metallic iron as catalyst
JP4671874A JPS5734037B2 (en) 1973-05-02 1974-04-26
BR352974A BR7403529D0 (en) 1973-05-02 1974-04-30 WATER TREATMENT PROCESS CONTAINING SULPHITES AND INSTALLATION EMPLOYED IN THE PROCESS
IT5071874A IT1015940B (en) 1973-05-02 1974-04-30 IMPROVEMENTS MADE TO THE TREATMENT OF SULPHITED WATERS
ES446989A ES446989A1 (en) 1973-05-02 1976-04-13 Installation for the treatment of water containing sulphites. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7315624A FR2228036A1 (en) 1973-05-02 1973-05-02 Treatment of waste water and gases contg. sulphites - converting by oxidn. to sulphates with metallic iron as catalyst

Publications (2)

Publication Number Publication Date
FR2228036A1 true FR2228036A1 (en) 1974-11-29
FR2228036B1 FR2228036B1 (en) 1976-11-12

Family

ID=9118676

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7315624A Granted FR2228036A1 (en) 1973-05-02 1973-05-02 Treatment of waste water and gases contg. sulphites - converting by oxidn. to sulphates with metallic iron as catalyst

Country Status (6)

Country Link
JP (1) JPS5734037B2 (en)
BR (1) BR7403529D0 (en)
DE (1) DE2419496A1 (en)
ES (2) ES425629A1 (en)
FR (1) FR2228036A1 (en)
IT (1) IT1015940B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104548914A (en) * 2014-11-07 2015-04-29 浙江理工大学 Method for comprehensively treating sulfur dioxide and printing and dyeing wastewater

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582690A (en) * 1984-08-06 1986-04-15 University Of Waterloo Oxidation of polythionates
CL2018002442A1 (en) * 2018-04-13 2018-10-12 Jiangnan Environmental Prot Group Inc Method and device for oxidizing a solution for ammonia desulfurization.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104548914A (en) * 2014-11-07 2015-04-29 浙江理工大学 Method for comprehensively treating sulfur dioxide and printing and dyeing wastewater

Also Published As

Publication number Publication date
FR2228036B1 (en) 1976-11-12
DE2419496A1 (en) 1974-11-21
IT1015940B (en) 1977-05-20
JPS5734037B2 (en) 1982-07-20
JPS5015358A (en) 1975-02-18
ES446989A1 (en) 1977-07-01
ES425629A1 (en) 1976-12-16
BR7403529D0 (en) 1974-12-03

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Legal Events

Date Code Title Description
ST Notification of lapse