DE2861673D1 - A method and an agent for chemical purification of water by means of chemical precipitation and magnetic sludge separation - Google Patents

A method and an agent for chemical purification of water by means of chemical precipitation and magnetic sludge separation

Info

Publication number
DE2861673D1
DE2861673D1 DE7878900176T DE2861673T DE2861673D1 DE 2861673 D1 DE2861673 D1 DE 2861673D1 DE 7878900176 T DE7878900176 T DE 7878900176T DE 2861673 T DE2861673 T DE 2861673T DE 2861673 D1 DE2861673 D1 DE 2861673D1
Authority
DE
Germany
Prior art keywords
chemical
agent
water
sludge separation
magnetic sludge
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
DE7878900176T
Other languages
English (en)
Inventor
Hellestam Sigvard
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.)
Boliden AB
Original Assignee
Boliden AB
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 Boliden AB filed Critical Boliden AB
Application granted granted Critical
Publication of DE2861673D1 publication Critical patent/DE2861673D1/de
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
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/002—High gradient magnetic separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/005—Pretreatment specially adapted for magnetic separation
    • B03C1/015—Pretreatment specially adapted for magnetic separation by chemical treatment imparting magnetic properties to the material to be separated, e.g. roasting, reduction, oxidation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/025—High gradient magnetic separators
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Water Treatment By Sorption (AREA)
DE7878900176T 1977-10-24 1978-10-23 A method and an agent for chemical purification of water by means of chemical precipitation and magnetic sludge separation Expired DE2861673D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7711948A SE413499B (sv) 1977-10-24 1977-10-24 Forfarande och medel for kemisk rening av vatten med atfoljande magnetisk slamavskiljning
PCT/SE1978/000063 WO1979000230A1 (en) 1977-10-24 1978-10-23 A method and an agent for chemical purification of water by means of chemical precipitation and magnetic sludge separation

Publications (1)

Publication Number Publication Date
DE2861673D1 true DE2861673D1 (en) 1982-04-15

Family

ID=20332667

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7878900176T Expired DE2861673D1 (en) 1977-10-24 1978-10-23 A method and an agent for chemical purification of water by means of chemical precipitation and magnetic sludge separation

Country Status (13)

Country Link
US (1) US4294705A (de)
EP (1) EP0007366B1 (de)
AU (1) AU521911B2 (de)
BE (1) BE871458A (de)
CA (1) CA1114080A (de)
DE (1) DE2861673D1 (de)
ES (1) ES474425A1 (de)
FI (1) FI783225A (de)
IT (1) IT1099441B (de)
NL (1) NL7810573A (de)
NO (1) NO783567L (de)
SE (1) SE413499B (de)
WO (1) WO1979000230A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612247A (en) * 1984-06-27 1986-09-16 Cape Cod Research, Inc. Magnetic cellulose-derivative structures
DE3624626A1 (de) * 1986-07-18 1988-01-28 Pilgrimm Herbert Verfahren zur abtrennung von stoffen aus einem stoffgemisch unter verwendung von magnetischen fluessigkeiten
SE466496B (sv) * 1989-05-09 1992-02-24 Solvator Process Ab Foerfarande foer rening av med organiskt material foerorenat surt avloppsvatten
GB9220269D0 (en) * 1992-09-25 1992-11-11 Bio Separation Ltd Separation of heavy metals from aqueous media
US5308502A (en) * 1992-12-17 1994-05-03 Tandy Coporation Method for waste treatment of organic strippers containing metals
JP3456135B2 (ja) * 1998-01-23 2003-10-14 株式会社日立製作所 汚泥浄化乾燥装置
GB2335656B (en) * 1998-03-26 2002-12-18 Gill Richard Austin Flocculation control
US8858821B2 (en) * 2010-12-14 2014-10-14 King Abdulaziz City For Science And Technology Magnetic extractants, method of making and using the same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE318529B (de) * 1967-08-30 1969-12-08 Boliden Ab
SE321649B (de) * 1968-03-18 1970-03-09 Boliden Ab
US3697420A (en) * 1968-03-19 1972-10-10 Donald Stapf Blaisdell Method and apparatus for treatment of aqueous liquor
US3567026A (en) * 1968-09-20 1971-03-02 Massachusetts Inst Technology Magnetic device
US3983033A (en) * 1973-03-26 1976-09-28 Massachusetts Institute Of Technology Process for removing dissolved phosphorus from water magnetically
US3912634A (en) * 1974-05-01 1975-10-14 Eriez Mfg Co Filter cartridge for a magnetic separator
DE2551030C3 (de) * 1974-11-15 1979-11-15 Miura Engineering International Co. Ltd., Osaka (Japan) Abwasserreinigungsvorrichtung mit einer um eine liegende Welle rotierenden Vorrichtung mit Magneten
US4108767A (en) * 1975-09-02 1978-08-22 Georgia-Pacific Corporation Separation of an aqueous or water-miscible liquid from a fluid mixture
US4089779A (en) * 1975-11-24 1978-05-16 Georgia-Pacific Corporation Clarification process
US4193866A (en) * 1976-09-27 1980-03-18 General Electric Company Ferrite flocculating system

Also Published As

Publication number Publication date
AU4094978A (en) 1980-05-01
NL7810573A (nl) 1979-04-26
SE7711948L (sv) 1979-04-25
IT7829001A0 (it) 1978-10-23
FI783225A (fi) 1979-04-25
EP0007366A1 (de) 1980-02-06
CA1114080A (en) 1981-12-08
EP0007366B1 (de) 1982-03-17
ES474425A1 (es) 1979-10-16
US4294705A (en) 1981-10-13
WO1979000230A1 (en) 1979-05-03
NO783567L (no) 1979-04-25
BE871458A (fr) 1979-04-23
SE413499B (sv) 1980-06-02
IT1099441B (it) 1985-09-18
AU521911B2 (en) 1982-05-06

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee