AU533079B2 - Process and apparatus for treating septic tank sludges - Google Patents

Process and apparatus for treating septic tank sludges

Info

Publication number
AU533079B2
AU533079B2 AU52795/79A AU5279579A AU533079B2 AU 533079 B2 AU533079 B2 AU 533079B2 AU 52795/79 A AU52795/79 A AU 52795/79A AU 5279579 A AU5279579 A AU 5279579A AU 533079 B2 AU533079 B2 AU 533079B2
Authority
AU
Australia
Prior art keywords
septic tank
sludge
dry material
biological
sludges
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.)
Ceased
Application number
AU52795/79A
Other versions
AU5279579A (en
Inventor
Paolo Formaggio
Thierry Laederich
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of AU5279579A publication Critical patent/AU5279579A/en
Application granted granted Critical
Publication of AU533079B2 publication Critical patent/AU533079B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
    • 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
    • C02F3/26—Activated sludge processes using pure oxygen or oxygen-rich gas
    • 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
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Abstract

1. Method for the biological processing by activated sludge of night soil or septic tank sludge, having the following characteristics : dry material : 6-40 Kg/m**3 volatile material : 65-80% of dry material DBO(5) : at least 5-15 Kg/m**3 DCO (bichromate) : 10-45 Kg/m**3 of the type where the said septic tank sludge or night soil undergoes a biological activation process with a gas having a high oxygen content of at least 5% in volume for a duration of at least 5 hours, characterised in that at the start of the process the septic tank sludges to be processed are seeded with an activated sludge, emanating from a station for waste water biological processing by the activated mud process, said mud having a dry material content of 6 to 15 Kg per m**3 , the rate of seeding being at least 0.6 Kg of dry material per m**3 of sludge to be processed, and in that the said seeded septic tank sludges are submitted to the said biological oxidation process with a mixing energy and an output of the said high oxygen content gas such that the content of oxygen dissolved in the said septic tank sludges is at least 109/m**3 and in that furthermore the processed septic tank sludges are continuously decanted, producing on the one hand a decanted biological sludge having a Mohlman index comprised between 30 and 60 and a clear filtrate having a DBO of 0.3 to 2.5 Kg/m**3 and a DCO of 0.5 to 4 Kg/m**3 , the quantity of oxygen being introduced being less than 0.5 Kg per Kg of dry material introduced.
AU52795/79A 1978-11-20 1979-11-14 Process and apparatus for treating septic tank sludges Ceased AU533079B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7832640A FR2441586A1 (en) 1978-11-20 1978-11-20 METHOD AND PLANT FOR THE TREATMENT OF SEPTIC PIT SLUDGE
FR7832640 1978-11-20

Publications (2)

Publication Number Publication Date
AU5279579A AU5279579A (en) 1980-05-29
AU533079B2 true AU533079B2 (en) 1983-10-27

Family

ID=9215064

Family Applications (1)

Application Number Title Priority Date Filing Date
AU52795/79A Ceased AU533079B2 (en) 1978-11-20 1979-11-14 Process and apparatus for treating septic tank sludges

Country Status (11)

Country Link
EP (1) EP0011573B1 (en)
JP (1) JPS5570398A (en)
AT (1) ATE241T1 (en)
AU (1) AU533079B2 (en)
DE (1) DE2960901D1 (en)
DK (1) DK156557C (en)
ES (1) ES486099A1 (en)
FR (1) FR2441586A1 (en)
GR (1) GR66516B (en)
PT (1) PT70464A (en)
ZA (1) ZA796069B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56139196A (en) * 1980-04-01 1981-10-30 Ebara Infilco Co Ltd Treatment of sludge in decontamination vessel
FR2506287A1 (en) * 1981-05-25 1982-11-26 Air Liquide PROCESS AND PLANT FOR TREATING SLUDGE FROM WASTEWATER TREATMENT
JPH02284699A (en) * 1989-04-25 1990-11-22 Ebara Infilco Co Ltd Treatment of septic tank sludge
JP4873341B2 (en) * 2005-04-22 2012-02-08 有限会社森内鉄工所 Ship rudder device
CN102730922A (en) * 2012-06-28 2012-10-17 杭州师范大学 Preservation device of anaerobic ammonium oxidation granular sludge

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615842A (en) * 1946-10-24 1952-10-28 Leon S Kraus Method of and apparatus for concentrating sewage sludges
FR1528179A (en) * 1966-05-24 1968-06-07 Norstel And Templewood Hawksle Treatment process for sewage and other organic sludge
DE2105420A1 (en) * 1971-02-05 1972-08-17 Aerobic Digesters Inc Sewage treatment plant - using oxygen bubbling in pressurized container
DE2216917C3 (en) * 1972-04-07 1974-09-19 Richard Dipl.-Ing. 6100 Darmstadt Schreiber Device for dissolving oxygen in water
FR2205484A1 (en) * 1972-11-03 1974-05-31 Matthey Doret Daniel Biological purificn station for polluted water - using single bacterial strain for both anaerobic and aerobic phases
US4094774A (en) * 1974-06-06 1978-06-13 Smith Eugene J Method and apparatus for oxygenating aerobically decomposable liquors
CH602498A5 (en) * 1976-10-25 1978-07-31 Norm Amc Ag Effluent clarifier wet sludge treatment
DE2604014A1 (en) * 1976-02-03 1977-08-11 Messer Griesheim Gmbh METHOD AND DEVICE FOR AEROBIC STABILIZATION OF HIGHLY ORGANICALLY POLLUTED SEWAGE

Also Published As

Publication number Publication date
AU5279579A (en) 1980-05-29
JPS5570398A (en) 1980-05-27
DK156557B (en) 1989-09-11
EP0011573A1 (en) 1980-05-28
DK490579A (en) 1980-05-21
DE2960901D1 (en) 1981-12-10
ATE241T1 (en) 1981-10-15
FR2441586A1 (en) 1980-06-13
PT70464A (en) 1979-12-01
ES486099A1 (en) 1980-05-16
DK156557C (en) 1990-02-12
GR66516B (en) 1981-03-24
ZA796069B (en) 1980-10-29
EP0011573B1 (en) 1981-09-23

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