CA2555875C - Elimination des phosphates d'eaux usees - Google Patents

Elimination des phosphates d'eaux usees Download PDF

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Publication number
CA2555875C
CA2555875C CA2555875A CA2555875A CA2555875C CA 2555875 C CA2555875 C CA 2555875C CA 2555875 A CA2555875 A CA 2555875A CA 2555875 A CA2555875 A CA 2555875A CA 2555875 C CA2555875 C CA 2555875C
Authority
CA
Canada
Prior art keywords
wastewater
flocculent
aluminium
aluminum
based coagulant
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 - Fee Related
Application number
CA2555875A
Other languages
English (en)
Other versions
CA2555875A1 (fr
Inventor
Lysane Bolduc
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.)
BLUMETRIC ENVIRONMENTAL Inc
Original Assignee
BLUMETRIC ENVIRONMENTAL 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
Priority claimed from CA 2532286 external-priority patent/CA2532286A1/fr
Application filed by BLUMETRIC ENVIRONMENTAL Inc filed Critical BLUMETRIC ENVIRONMENTAL Inc
Priority to CA2555875A priority Critical patent/CA2555875C/fr
Publication of CA2555875A1 publication Critical patent/CA2555875A1/fr
Application granted granted Critical
Publication of CA2555875C publication Critical patent/CA2555875C/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C02F1/52—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
    • C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • 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
    • C02F2101/105—Phosphorus 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
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions

Landscapes

  • Chemical & Material Sciences (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)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

Des procédés, des méthodes et des dispositifs sont présentés en vue de réduire la concentration de phosphore dans les eaux usées. Le procédé comprend l'ajout d'une quantité convenable d'un coagulant/floculant à base d'aluminium, par exemple un produit coagulant/floculant aluminium-silicate, aux eaux usées tout en maintenant le pH des eaux usées à des valeurs d'environ 4,5 à 6,65. Cette étape fournit un éventuel flux d'effluent de flocs précipités à base d'aluminium contenant du phosphore dispersés dans les eaux usées. L'étape suivante implique l'extraction physique, par exemple par filtration, des flocs précipités à base d'aluminium contenant du phosphore qui sont dispersés dans les eaux usées. Ces étapes permettent de fournir un effluent d'eaux usées contentant moins d'environ 0,03 mg de phosphore total par litre d'eaux usées. La révélation propose également des méthodes et des dispositifs innovateurs pour réaliser le nouveau procédé.
CA2555875A 2006-01-05 2006-08-11 Elimination des phosphates d'eaux usees Expired - Fee Related CA2555875C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2555875A CA2555875C (fr) 2006-01-05 2006-08-11 Elimination des phosphates d'eaux usees

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA 2532286 CA2532286A1 (fr) 2006-01-05 2006-01-05 Elimination des phosphates d'eaux usees
CA2,532,286 2006-01-05
CA2555875A CA2555875C (fr) 2006-01-05 2006-08-11 Elimination des phosphates d'eaux usees

Publications (2)

Publication Number Publication Date
CA2555875A1 CA2555875A1 (fr) 2007-07-05
CA2555875C true CA2555875C (fr) 2015-03-17

Family

ID=38229462

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2555875A Expired - Fee Related CA2555875C (fr) 2006-01-05 2006-08-11 Elimination des phosphates d'eaux usees

Country Status (1)

Country Link
CA (1) CA2555875C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016134277A1 (fr) * 2015-02-20 2016-08-25 Usalco, Llc Solutions concentrées stables de polychlorosilicate d'aluminium

Also Published As

Publication number Publication date
CA2555875A1 (fr) 2007-07-05

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Effective date: 20210811