CA2640920C - Systeme de recirculation permettant d'ameliorer l'elimination de biomasse dans des boues d'epuration - Google Patents

Systeme de recirculation permettant d'ameliorer l'elimination de biomasse dans des boues d'epuration Download PDF

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Publication number
CA2640920C
CA2640920C CA2640920A CA2640920A CA2640920C CA 2640920 C CA2640920 C CA 2640920C CA 2640920 A CA2640920 A CA 2640920A CA 2640920 A CA2640920 A CA 2640920A CA 2640920 C CA2640920 C CA 2640920C
Authority
CA
Canada
Prior art keywords
sludge
sewage
feedback
substance
solids
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
CA2640920A
Other languages
English (en)
Other versions
CA2640920A1 (fr
Inventor
Andrew J. Lugowski
George F. Nakhla
Ajay Singh
Owen P. Ward
Frederick A. Mosher
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.)
Lystek International Corp
Original Assignee
Lystek International 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 Lystek International Inc filed Critical Lystek International Inc
Priority to CA2640920A priority Critical patent/CA2640920C/fr
Publication of CA2640920A1 publication Critical patent/CA2640920A1/fr
Application granted granted Critical
Publication of CA2640920C publication Critical patent/CA2640920C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/02—Biological treatment
    • C02F11/04—Anaerobic treatment; Production of methane by such processes
    • 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
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/06—Sludge reduction, e.g. by lysis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/06—Nutrients for stimulating the growth of microorganisms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Une boue déjà traitée est réacheminée dans des eaux usées entrantes et est efficace pour fournir les nutriments nécessaires à la dégradation microbiologique de la boue. La boue réacheminée présente un contenu solide de 10 % ou plus et a été cisaillée ou chauffée pour diminuer sa viscosité à 10 000 cP ou moins. Dans la boue ainsi créée, les nutriments sont préservés et acheminés vers les eaux usées afin dêtre traités sous forme hautement liquéfiée et solubilisée; ce faisant, les nutriments sont particulièrement biodisponibles pour les microbes présents dans les eaux usées. Il peut en résulter de grandes améliorations pour ce qui est de lélimination de la biomasse.
CA2640920A 2008-10-10 2008-10-10 Systeme de recirculation permettant d'ameliorer l'elimination de biomasse dans des boues d'epuration Active CA2640920C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2640920A CA2640920C (fr) 2008-10-10 2008-10-10 Systeme de recirculation permettant d'ameliorer l'elimination de biomasse dans des boues d'epuration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2640920A CA2640920C (fr) 2008-10-10 2008-10-10 Systeme de recirculation permettant d'ameliorer l'elimination de biomasse dans des boues d'epuration

Publications (2)

Publication Number Publication Date
CA2640920A1 CA2640920A1 (fr) 2010-04-10
CA2640920C true CA2640920C (fr) 2015-03-17

Family

ID=42097452

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2640920A Active CA2640920C (fr) 2008-10-10 2008-10-10 Systeme de recirculation permettant d'ameliorer l'elimination de biomasse dans des boues d'epuration

Country Status (1)

Country Link
CA (1) CA2640920C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012192351A (ja) * 2011-03-17 2012-10-11 Mitsubishi Kakoki Kaisha Ltd 有機性廃棄物処理方法および有機性廃棄物処理装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012192351A (ja) * 2011-03-17 2012-10-11 Mitsubishi Kakoki Kaisha Ltd 有機性廃棄物処理方法および有機性廃棄物処理装置

Also Published As

Publication number Publication date
CA2640920A1 (fr) 2010-04-10

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