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FR2283866B1 - - Google Patents

Info

Publication number
FR2283866B1
FR2283866B1 FR7430485A FR7430485A FR2283866B1 FR 2283866 B1 FR2283866 B1 FR 2283866B1 FR 7430485 A FR7430485 A FR 7430485A FR 7430485 A FR7430485 A FR 7430485A FR 2283866 B1 FR2283866 B1 FR 2283866B1
Authority
FR
France
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
FR7430485A
Other languages
French (fr)
Other versions
FR2283866A1 (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.)
SIDIC
Original Assignee
SIDIC
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 SIDIC filed Critical SIDIC
Priority to FR7430485A priority Critical patent/FR2283866A1/en
Publication of FR2283866A1 publication Critical patent/FR2283866A1/en
Application granted granted Critical
Publication of FR2283866B1 publication Critical patent/FR2283866B1/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
    • C02F1/70—Treatment of water, waste water, or sewage by reduction
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/22—Chromium or chromium compounds, e.g. chromates

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)
  • Chemical Treatment Of Metals (AREA)
FR7430485A 1974-09-09 1974-09-09 Effluent purificn from chemical treatment of metal surfaces - using hydrosulphite ions to eliminate hexavalent chromium ions Granted FR2283866A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7430485A FR2283866A1 (en) 1974-09-09 1974-09-09 Effluent purificn from chemical treatment of metal surfaces - using hydrosulphite ions to eliminate hexavalent chromium ions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7430485A FR2283866A1 (en) 1974-09-09 1974-09-09 Effluent purificn from chemical treatment of metal surfaces - using hydrosulphite ions to eliminate hexavalent chromium ions

Publications (2)

Publication Number Publication Date
FR2283866A1 FR2283866A1 (en) 1976-04-02
FR2283866B1 true FR2283866B1 (en) 1978-03-24

Family

ID=9142893

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7430485A Granted FR2283866A1 (en) 1974-09-09 1974-09-09 Effluent purificn from chemical treatment of metal surfaces - using hydrosulphite ions to eliminate hexavalent chromium ions

Country Status (1)

Country Link
FR (1) FR2283866A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201413222D0 (en) * 2014-07-25 2014-09-10 Ionex Sg Ltd Treatment of liquid waste

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819051A (en) * 1972-08-31 1974-06-25 Amchem Prod Process for treating wastes containing chromates and/or complex iron cyanides

Also Published As

Publication number Publication date
FR2283866A1 (en) 1976-04-02

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse