CA1071839A - Process for the treatment of acidic waste liquid containing dissolved ferrous salts - Google Patents

Process for the treatment of acidic waste liquid containing dissolved ferrous salts

Info

Publication number
CA1071839A
CA1071839A CA237,299A CA237299A CA1071839A CA 1071839 A CA1071839 A CA 1071839A CA 237299 A CA237299 A CA 237299A CA 1071839 A CA1071839 A CA 1071839A
Authority
CA
Canada
Prior art keywords
calcium
range
value
calcium sulphate
sulphate
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
CA237,299A
Other languages
English (en)
French (fr)
Other versions
CA237299S (en
Inventor
Peter Spurgeon
Walter Twist
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.)
Tioxide Group Ltd
Original Assignee
Tioxide Group Ltd
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 Tioxide Group Ltd filed Critical Tioxide Group Ltd
Application granted granted Critical
Publication of CA1071839A publication Critical patent/CA1071839A/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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Removal Of Specific Substances (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
CA237,299A 1974-10-12 1975-10-08 Process for the treatment of acidic waste liquid containing dissolved ferrous salts Expired CA1071839A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4429774A GB1454933A (en) 1974-10-12 1974-10-12 Process for the treatment of acidic waste liquid containing dissolved salts
GB4970074 1974-11-16

Publications (1)

Publication Number Publication Date
CA1071839A true CA1071839A (en) 1980-02-19

Family

ID=26265369

Family Applications (1)

Application Number Title Priority Date Filing Date
CA237,299A Expired CA1071839A (en) 1974-10-12 1975-10-08 Process for the treatment of acidic waste liquid containing dissolved ferrous salts

Country Status (7)

Country Link
US (1) US4006080A (https=)
JP (1) JPS5176192A (https=)
CA (1) CA1071839A (https=)
DE (1) DE2543005A1 (https=)
ES (1) ES441720A1 (https=)
FR (1) FR2287421A1 (https=)
GB (1) GB1454933A (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060354B1 (en) * 1981-03-12 1985-07-31 Carson, Dennis M. Method of treating coal to remove sulphur and ash
DE3213932A1 (de) * 1982-04-15 1983-10-27 Süd-Chemie AG, 8000 München Verfahren zur aufarbeitung von aluminium- und eisenhaltigen sauren abwaessern
DE4016156C2 (de) * 1990-05-21 1995-04-06 Steag Ag Verfahren zum Aufbereiten von Abwasser
SE514409C2 (sv) 1999-06-17 2001-02-19 Boliden Mineral Ab Förfarande för total utfällning av värdemetaller ur en sur laklösning
FR2808018B1 (fr) * 2000-04-21 2002-07-12 Sarp Ind Procede de traitement d'effluents contenant des sulfates metalliques mettant en oeuvre une etape d'addition d'ammoniac
SG11202103902TA (en) 2018-12-14 2021-05-28 Avertana Ltd Methods of extraction of products from titanium-bearing materials
NZ787905A (en) 2019-12-19 2026-01-30 Avertana Ltd Cement additive
CN115340237A (zh) * 2022-07-31 2022-11-15 浙江华友钴业股份有限公司 磷酸铁生产废水处理方法和系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1310382A (en) * 1919-07-15 Method of treating mine-water
SE351444B (https=) * 1970-11-03 1972-11-27 Nordstjernan Rederi Ab
JPS5044078Y2 (https=) * 1971-03-25 1975-12-16
JPS4885494A (https=) * 1972-02-18 1973-11-13

Also Published As

Publication number Publication date
US4006080A (en) 1977-02-01
AU8536075A (en) 1977-04-07
ES441720A1 (es) 1977-03-16
GB1454933A (en) 1976-11-10
JPS5176192A (https=) 1976-07-01
FR2287421B1 (https=) 1982-10-15
DE2543005A1 (de) 1976-04-22
FR2287421A1 (fr) 1976-05-07

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Legal Events

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