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FR2123516A1 - Conditioning and de watering of effluent sludge - by mixing with flocculants - Google Patents

Conditioning and de watering of effluent sludge - by mixing with flocculants

Info

Publication number
FR2123516A1
FR2123516A1 FR7202929A FR7202929A FR2123516A1 FR 2123516 A1 FR2123516 A1 FR 2123516A1 FR 7202929 A FR7202929 A FR 7202929A FR 7202929 A FR7202929 A FR 7202929A FR 2123516 A1 FR2123516 A1 FR 2123516A1
Authority
FR
France
Prior art keywords
sludge
droplets
flocculants
watering
conditioning
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
FR7202929A
Other languages
French (fr)
Other versions
FR2123516B1 (en
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.)
Rheinstahl AG
Original Assignee
Rheinstahl AG
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 Rheinstahl AG filed Critical Rheinstahl AG
Publication of FR2123516A1 publication Critical patent/FR2123516A1/en
Application granted granted Critical
Publication of FR2123516B1 publication Critical patent/FR2123516B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • 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
    • 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
    • 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
    • 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
    • C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
    • C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
    • 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
    • C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Treatment Of Sludge (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treating Waste Gases (AREA)

Abstract

Sludge is vaporised into small droplets, passed through a lot gas atmosphere and into a bath for flocculant (e.g. synthetic polymer) addition. Sludge droplets are acidified using calcium chloride to a pH of 4. Dewatering is carried out using a pre-cooler and a sludge reactor tower with adjustable injection nozzles. Between pre-cooler and sludge reactor is fitted a dry particle catcher for smoke gas. Alternatively a centrifuge may be used for dewatering. Complete and irreversible denaturating of the protein from the sludge may be achieved by a quick heating up process of the sludge droplets to pref. 60-85 degrees C. and a residence time in the gas atmosphere (pref. contng. CO2) between 1-10 sec.
FR7202929A 1971-01-28 1972-01-28 Conditioning and de watering of effluent sludge - by mixing with flocculants Granted FR2123516A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2103970A DE2103970C3 (en) 1971-01-28 1971-01-28 Process for conditioning and subsequent dewatering of sewage sludge from sewage treatment plants and device for its implementation

Publications (2)

Publication Number Publication Date
FR2123516A1 true FR2123516A1 (en) 1972-09-08
FR2123516B1 FR2123516B1 (en) 1974-12-13

Family

ID=5797157

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7202929A Granted FR2123516A1 (en) 1971-01-28 1972-01-28 Conditioning and de watering of effluent sludge - by mixing with flocculants

Country Status (14)

Country Link
JP (1) JPS5543839B1 (en)
AT (1) AT310105B (en)
AU (1) AU463468B2 (en)
BE (1) BE778555A (en)
CA (1) CA964774A (en)
CH (1) CH528447A (en)
DD (1) DD97182A5 (en)
DE (1) DE2103970C3 (en)
FR (1) FR2123516A1 (en)
IT (1) IT946963B (en)
NL (1) NL174136C (en)
NO (1) NO131418C (en)
RO (1) RO62086A (en)
SE (1) SE385861B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2347314A1 (en) * 1975-11-18 1977-11-04 Champion Int Corp PROCESS FOR TREATING ACTIVE SLUDGE TO FACILITATE ITS THICKNESS
FR2579723A2 (en) * 1985-04-01 1986-10-03 Henry Eugene URBAN SLUDGE AND GARBAGE INCINERATOR

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3501778A1 (en) * 1985-01-21 1986-07-24 Dow Chemical GmbH, 2160 Stade METHOD FOR REDUCING WASTEWATER SLUDGE FROM WASTEWATER PLANTS
CN110260349B (en) * 2019-07-02 2021-02-26 株洲市金利亚环保科技有限公司 Fly ash treatment environmental protection equipment for waste incineration power plant
CN112944363A (en) * 2021-03-18 2021-06-11 中国电力工程顾问集团华东电力设计院有限公司 Sludge drying and incinerating system with high-position arranged drying machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1009707A (en) * 1961-11-30 1965-11-10 Leje & Thurne Ab A method of treating raw sludge in sewage systems
FR1540499A (en) * 1966-02-09 1968-09-27 Process for the treatment of sludge in sewage treatment plants
DE1459497A1 (en) * 1963-07-10 1969-04-17 Metallgesellschaft Ag Process for the treatment of sludge with gases containing carbon dioxide
DE1484838A1 (en) * 1964-02-04 1969-06-04 Metallgesellschaft Ag Process for the treatment of centrifugate, which falls during the dewatering of sewage sludge by means of decanting centrifuges
GB1159819A (en) * 1966-11-28 1969-07-30 Dow Chemical Co An improved process for Dewatering Organic Waste Solids

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4428233Y1 (en) * 1967-01-30 1969-11-24

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1009707A (en) * 1961-11-30 1965-11-10 Leje & Thurne Ab A method of treating raw sludge in sewage systems
DE1459497A1 (en) * 1963-07-10 1969-04-17 Metallgesellschaft Ag Process for the treatment of sludge with gases containing carbon dioxide
DE1484838A1 (en) * 1964-02-04 1969-06-04 Metallgesellschaft Ag Process for the treatment of centrifugate, which falls during the dewatering of sewage sludge by means of decanting centrifuges
FR1540499A (en) * 1966-02-09 1968-09-27 Process for the treatment of sludge in sewage treatment plants
GB1159819A (en) * 1966-11-28 1969-07-30 Dow Chemical Co An improved process for Dewatering Organic Waste Solids

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2347314A1 (en) * 1975-11-18 1977-11-04 Champion Int Corp PROCESS FOR TREATING ACTIVE SLUDGE TO FACILITATE ITS THICKNESS
FR2579723A2 (en) * 1985-04-01 1986-10-03 Henry Eugene URBAN SLUDGE AND GARBAGE INCINERATOR
WO1986005859A1 (en) * 1985-04-01 1986-10-09 Hartmann, Rainer, E. Incinerator for urban muds and refuse

Also Published As

Publication number Publication date
DD97182A5 (en) 1973-04-20
CA964774A (en) 1975-03-18
AU463468B2 (en) 1975-07-31
BE778555A (en) 1972-05-16
FR2123516B1 (en) 1974-12-13
NO131418C (en) 1975-05-28
JPS5543839B1 (en) 1980-11-08
NO131418B (en) 1975-02-17
AU3818472A (en) 1973-07-26
CH528447A (en) 1972-09-30
NL174136B (en) 1983-12-01
IT946963B (en) 1973-05-21
DE2103970C3 (en) 1979-11-15
SE385861B (en) 1976-07-26
NL7201090A (en) 1972-08-01
RO62086A (en) 1977-11-15
NL174136C (en) 1984-05-01
AT310105B (en) 1973-09-25
DE2103970A1 (en) 1972-08-24
DE2103970B2 (en) 1978-07-06

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Legal Events

Date Code Title Description
ST Notification of lapse