CA2873453C - Procede sans production de rejet liquide pour des solutions a teneur elevee en silice - Google Patents

Procede sans production de rejet liquide pour des solutions a teneur elevee en silice Download PDF

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Publication number
CA2873453C
CA2873453C CA2873453A CA2873453A CA2873453C CA 2873453 C CA2873453 C CA 2873453C CA 2873453 A CA2873453 A CA 2873453A CA 2873453 A CA2873453 A CA 2873453A CA 2873453 C CA2873453 C CA 2873453C
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CA
Canada
Prior art keywords
aqueous alkaline
stream
liquid discharge
treating
alkaline stream
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.)
Active
Application number
CA2873453A
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English (en)
Other versions
CA2873453A1 (fr
Inventor
John Richardson
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.)
ChemTreat Inc
Original Assignee
ChemTreat Inc
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 ChemTreat Inc filed Critical ChemTreat Inc
Priority to CA2873453A priority Critical patent/CA2873453C/fr
Publication of CA2873453A1 publication Critical patent/CA2873453A1/fr
Application granted granted Critical
Publication of CA2873453C publication Critical patent/CA2873453C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/152—Preparation of hydrogels
    • C01B33/154—Preparation of hydrogels by acidic treatment of aqueous silicate solutions
    • 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
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
    • 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
    • C02F2001/5218—Crystallization
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Removal Of Specific Substances (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

Il est décrit des procédés sans production de rejet liquide qui utilisent un silicate dorigine naturelle ou supplémentaire dans lalimentation en eau pour lenlèvement de dureté de calcium et de magnésium à partir de flux alcalins aqueux en forme de silicagel, permettant ainsi la séparation de supernant de dureté faible aux fins de recyclage.
CA2873453A 2014-12-02 2014-12-02 Procede sans production de rejet liquide pour des solutions a teneur elevee en silice Active CA2873453C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2873453A CA2873453C (fr) 2014-12-02 2014-12-02 Procede sans production de rejet liquide pour des solutions a teneur elevee en silice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2873453A CA2873453C (fr) 2014-12-02 2014-12-02 Procede sans production de rejet liquide pour des solutions a teneur elevee en silice

Publications (2)

Publication Number Publication Date
CA2873453A1 CA2873453A1 (fr) 2016-06-02
CA2873453C true CA2873453C (fr) 2023-04-04

Family

ID=56087559

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2873453A Active CA2873453C (fr) 2014-12-02 2014-12-02 Procede sans production de rejet liquide pour des solutions a teneur elevee en silice

Country Status (1)

Country Link
CA (1) CA2873453C (fr)

Also Published As

Publication number Publication date
CA2873453A1 (fr) 2016-06-02

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