CA2016152A1 - Process for chemical stabilization of heavy metal bearing dusts and sludges - Google Patents

Process for chemical stabilization of heavy metal bearing dusts and sludges

Info

Publication number
CA2016152A1
CA2016152A1 CA2016152A CA2016152A CA2016152A1 CA 2016152 A1 CA2016152 A1 CA 2016152A1 CA 2016152 A CA2016152 A CA 2016152A CA 2016152 A CA2016152 A CA 2016152A CA 2016152 A1 CA2016152 A1 CA 2016152A1
Authority
CA
Canada
Prior art keywords
sludges
heavy metal
metal bearing
chemical stabilization
alumino
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
CA2016152A
Other languages
French (fr)
Other versions
CA2016152C (en
Inventor
John D. Lynn
Charles E. Jablonski
Walter D. Egan
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.)
Cleveland Cliffs Steel Technologies Inc
Original Assignee
Individual
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
Priority claimed from US07/349,006 external-priority patent/US4911757A/en
Application filed by Individual filed Critical Individual
Publication of CA2016152A1 publication Critical patent/CA2016152A1/en
Application granted granted Critical
Publication of CA2016152C publication Critical patent/CA2016152C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)

Abstract

A calcium-alumino-silicate composition comprising the reaction product of electric arc furnace dust and/or an aqueous chemical waste sludge including a source of ferrous ions and selective additive materials, the additive materials are selected so that the total composition of the additive ingredients and said sludge includes fly ash, electric arc furnace dust, lime kiln dust, ferrous sulfate, hydrated lime to provide an alkalinity of about 9 to 9.5% and water, the composition contains at least 0.2% by weight of ferrous ions and is hardenable through chemical reactions, the product of which includes calcium-alumino-silicates.
CA 2016152 1989-05-09 1990-05-07 Process for chemical stabilization of heavy metal bearing dusts and sludges Expired - Lifetime CA2016152C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US349,006 1989-05-09
US07/349,006 US4911757A (en) 1987-06-18 1989-05-09 Process for chemical stabilization of heavy metal bearing dusts and sludges

Publications (2)

Publication Number Publication Date
CA2016152A1 true CA2016152A1 (en) 1990-11-10
CA2016152C CA2016152C (en) 1995-11-21

Family

ID=23370480

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2016152 Expired - Lifetime CA2016152C (en) 1989-05-09 1990-05-07 Process for chemical stabilization of heavy metal bearing dusts and sludges

Country Status (1)

Country Link
CA (1) CA2016152C (en)

Also Published As

Publication number Publication date
CA2016152C (en) 1995-11-21

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