FR3086941B1 - Procede ameliore de deshydratation de boues assistee par reactif floculant - Google Patents

Procede ameliore de deshydratation de boues assistee par reactif floculant Download PDF

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Publication number
FR3086941B1
FR3086941B1 FR1859314A FR1859314A FR3086941B1 FR 3086941 B1 FR3086941 B1 FR 3086941B1 FR 1859314 A FR1859314 A FR 1859314A FR 1859314 A FR1859314 A FR 1859314A FR 3086941 B1 FR3086941 B1 FR 3086941B1
Authority
FR
France
Prior art keywords
sludge
assisted
flocculating reagent
improved process
sludge dehydration
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
FR1859314A
Other languages
English (en)
Other versions
FR3086941A1 (fr
Inventor
Malik Djafer
Cedric Crampon
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.)
Veolia Water Solutions and Technologies Support SAS
Original Assignee
Veolia Water Solutions and Technologies Support SAS
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 Veolia Water Solutions and Technologies Support SAS filed Critical Veolia Water Solutions and Technologies Support SAS
Priority to FR1859314A priority Critical patent/FR3086941B1/fr
Priority to PCT/EP2019/077097 priority patent/WO2020074448A1/fr
Publication of FR3086941A1 publication Critical patent/FR3086941A1/fr
Application granted granted Critical
Publication of FR3086941B1 publication Critical patent/FR3086941B1/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
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • 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
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
    • 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
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
    • 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
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • 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
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
    • 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
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
    • 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
    • C02F2301/06—Pressure conditions
    • C02F2301/063—Underpressure, vacuum
    • 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
    • C02F2303/26—Reducing the size of particles, liquid droplets or bubbles, e.g. by crushing, grinding, spraying, creation of microbubbles or nanobubbles

Abstract

Procédé de déshydratation de boues assistée par réactif floculant, ledit procédé comprenant une injection de réactif floculant dans les boues et une étape de déshydratation desdites boues, ledit procédé comprenant une étape préliminaire pour abaisser la viscosité et la granulométrie desdites boues avant de les évacuer, via un réseau hydraulique incluant une pompe, vers ladite étape de déshydratation, caractérisé en ce que ladite étape préliminaire pour abaisser la viscosité et la granulométrie desdites boues consiste en une étape de dépressurisation dudit réseau hydraulique provoquant la déstructuration par cavitation desdites boues.
FR1859314A 2018-10-08 2018-10-08 Procede ameliore de deshydratation de boues assistee par reactif floculant Expired - Fee Related FR3086941B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1859314A FR3086941B1 (fr) 2018-10-08 2018-10-08 Procede ameliore de deshydratation de boues assistee par reactif floculant
PCT/EP2019/077097 WO2020074448A1 (fr) 2018-10-08 2019-10-07 Procede ameliore de deshydratation de boues assistee par reactif floculant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1859314A FR3086941B1 (fr) 2018-10-08 2018-10-08 Procede ameliore de deshydratation de boues assistee par reactif floculant

Publications (2)

Publication Number Publication Date
FR3086941A1 FR3086941A1 (fr) 2020-04-10
FR3086941B1 true FR3086941B1 (fr) 2021-07-09

Family

ID=65494333

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1859314A Expired - Fee Related FR3086941B1 (fr) 2018-10-08 2018-10-08 Procede ameliore de deshydratation de boues assistee par reactif floculant

Country Status (2)

Country Link
FR (1) FR3086941B1 (fr)
WO (1) WO2020074448A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007055563A1 (de) * 2007-11-20 2009-06-10 J. F. Knauer Industrie-Elektronik Gmbh Verfahren und Vorrichtung zum Behandeln von Schlamm
FR3030485B1 (fr) 2014-12-19 2019-08-09 Veolia Water Solutions & Technologies Support Procede de deshydratation de boues assistee par reactif floculant et installation pour la mise en œuvre d'un tel procede.
FR3052450B1 (fr) 2016-06-08 2020-01-10 Veolia Water Solutions & Technologies Support Procede ameliore de deshydratation de boues assistee par reactif floculant et installation pour la mise en œuvre d'un tel procede.

Also Published As

Publication number Publication date
FR3086941A1 (fr) 2020-04-10
WO2020074448A1 (fr) 2020-04-16

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