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FR2380227A1 - Anaerobic fermentation to purify effluent contg. biological pollutants - at half the cost of activated sludge process - Google Patents

Anaerobic fermentation to purify effluent contg. biological pollutants - at half the cost of activated sludge process

Info

Publication number
FR2380227A1
FR2380227A1 FR7704315A FR7704315A FR2380227A1 FR 2380227 A1 FR2380227 A1 FR 2380227A1 FR 7704315 A FR7704315 A FR 7704315A FR 7704315 A FR7704315 A FR 7704315A FR 2380227 A1 FR2380227 A1 FR 2380227A1
Authority
FR
France
Prior art keywords
liq
sludge
fermenting vessel
activated sludge
scrubbed
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
FR7704315A
Other languages
French (fr)
Other versions
FR2380227B1 (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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to FR7704315A priority Critical patent/FR2380227A1/en
Publication of FR2380227A1 publication Critical patent/FR2380227A1/en
Application granted granted Critical
Publication of FR2380227B1 publication Critical patent/FR2380227B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C02F3/28—Anaerobic digestion processes
    • C02F3/2866—Particular arrangements for anaerobic reactors
    • C02F3/2873—Particular arrangements for anaerobic reactors with internal draft tube circulation
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The liq. is agitated in contact with an abundant supply of gas whic contains little or no oxygen and is mainly methane. this contacting takes place in a fermenting vessel from which exhausted gas, contg. CH4 and CO2, is scrubbed in an aq. alkaline liq. to remove CO2. Part of the scrubbed cH4 is recycled to the fermenting vessel with the balance available for industrial use. Liq. sludge drained from the fermenting vessel is decanted to produce a stable, concd. sludge for use as a fertiliser. Part of the clarified liq. from the decanter is pref. used in the aq. laklaine liq. in the scrubbing operation, and some is always discharged from the process. The liq. sludge from the fermenting vessel is pref. degassed prior to decantation. Used for anaerobic, biological purificn. of fermentable effluents, partic. those from abattoirs, food factories, distilleris, chemical factories, dairies, etc. Results in highly efficient reduction of BOD by up to 90%. At incoming BOD values over about 3000 mg oxygen per litre, the ost of treatment by this process is about half that of an activated sludge process.
FR7704315A 1977-02-14 1977-02-14 Anaerobic fermentation to purify effluent contg. biological pollutants - at half the cost of activated sludge process Granted FR2380227A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7704315A FR2380227A1 (en) 1977-02-14 1977-02-14 Anaerobic fermentation to purify effluent contg. biological pollutants - at half the cost of activated sludge process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7704315A FR2380227A1 (en) 1977-02-14 1977-02-14 Anaerobic fermentation to purify effluent contg. biological pollutants - at half the cost of activated sludge process

Publications (2)

Publication Number Publication Date
FR2380227A1 true FR2380227A1 (en) 1978-09-08
FR2380227B1 FR2380227B1 (en) 1982-10-22

Family

ID=9186801

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7704315A Granted FR2380227A1 (en) 1977-02-14 1977-02-14 Anaerobic fermentation to purify effluent contg. biological pollutants - at half the cost of activated sludge process

Country Status (1)

Country Link
FR (1) FR2380227A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461684A1 (en) * 1979-07-23 1981-02-06 Degremont Sa Purificn. of organically polluted water contg. sulphate(s) - using anaerobic bacteria with sulphide(s) removed by gas entrainment
DE3203445A1 (en) * 1982-02-02 1983-08-11 Mannesmann Veba Umwelttechnik GmbH, 4690 Herne METHOD AND DEVICE FOR BIOLOGICAL SLUDGE TREATMENT
DE3307796A1 (en) * 1983-03-04 1984-09-06 Linde Ag, 6200 Wiesbaden Process and apparatus for anaerobic degradation of organic substrates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461684A1 (en) * 1979-07-23 1981-02-06 Degremont Sa Purificn. of organically polluted water contg. sulphate(s) - using anaerobic bacteria with sulphide(s) removed by gas entrainment
DE3203445A1 (en) * 1982-02-02 1983-08-11 Mannesmann Veba Umwelttechnik GmbH, 4690 Herne METHOD AND DEVICE FOR BIOLOGICAL SLUDGE TREATMENT
DE3307796A1 (en) * 1983-03-04 1984-09-06 Linde Ag, 6200 Wiesbaden Process and apparatus for anaerobic degradation of organic substrates

Also Published As

Publication number Publication date
FR2380227B1 (en) 1982-10-22

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Legal Events

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ST Notification of lapse