ES476599A1 - Aerobic/anaerobic sludge digestion process - Google Patents

Aerobic/anaerobic sludge digestion process

Info

Publication number
ES476599A1
ES476599A1 ES476599A ES476599A ES476599A1 ES 476599 A1 ES476599 A1 ES 476599A1 ES 476599 A ES476599 A ES 476599A ES 476599 A ES476599 A ES 476599A ES 476599 A1 ES476599 A1 ES 476599A1
Authority
ES
Spain
Prior art keywords
sludge
aerobic
digestion process
anaerobic sludge
sludge digestion
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
Application number
ES476599A
Other languages
Spanish (es)
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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
Priority claimed from KR1019780003213A external-priority patent/KR830001900B1/en
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of ES476599A1 publication Critical patent/ES476599A1/en
Expired 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
    • 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
    • C02F3/30—Aerobic and anaerobic 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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (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

A process for digestion of sludge comprises introducing the sludge and aeration feed gas to a first digestion zone, oxygenating the sludge therein at a temperature of from 35 to 75 DEG C to form partially stabilized sludge and then anaerobically digesting the partially stabilized sludge in a covered second digestion zone at a temperature of from 25 to 60 DEG C to form further stabilized sludge and methane gas.
ES476599A 1977-10-13 1979-01-05 Aerobic/anaerobic sludge digestion process Expired ES476599A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US84190277A 1977-10-13 1977-10-13
US92809978A 1978-07-26 1978-07-26
KR1019780003213A KR830001900B1 (en) 1978-10-25 1978-10-25 Aerobic and Anaerobic Sludge Decomposition

Publications (1)

Publication Number Publication Date
ES476599A1 true ES476599A1 (en) 1979-07-16

Family

ID=27348167

Family Applications (2)

Application Number Title Priority Date Filing Date
ES474110A Expired ES474110A1 (en) 1977-10-13 1978-10-11 Aerobic/anaerobic sludge digestion process
ES476599A Expired ES476599A1 (en) 1977-10-13 1979-01-05 Aerobic/anaerobic sludge digestion process

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES474110A Expired ES474110A1 (en) 1977-10-13 1978-10-11 Aerobic/anaerobic sludge digestion process

Country Status (13)

Country Link
JP (1) JPS5464848A (en)
AT (1) AT385979B (en)
BR (1) BR7806742A (en)
CA (1) CA1115432A (en)
DD (1) DD140740A5 (en)
DE (1) DE2844498C2 (en)
DK (1) DK454978A (en)
ES (2) ES474110A1 (en)
FR (1) FR2440920A2 (en)
GB (1) GB2006743A (en)
IT (1) IT1116823B (en)
PH (1) PH17462A (en)
SU (1) SU973013A3 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2852544C2 (en) * 1978-12-05 1982-11-04 Menzel Gmbh & Co, 7000 Stuttgart Process for stabilizing and largely sanitizing sewage sludge from sewage treatment plants
US4276174A (en) * 1980-03-26 1981-06-30 Union Carbide Corporation Control of sludge temperature in autothermal sludge digestion
FR2614888B1 (en) * 1987-05-07 1989-08-18 Jullien Antonin PROCESS FOR THE METHANIC FERMENTATION OF ORGANIC MATERIALS AND DEVICE FOR IMPLEMENTING SAME
DE3813844C2 (en) * 1988-04-23 1993-12-23 Fuchs Leonhard Process for decontaminating sewage sludge
AT397382B (en) * 1992-01-14 1994-03-25 Ingerle Kurt Dipl Ing Dr Techn METHOD FOR DENITRIFYING WASTEWATER
ES2070787B1 (en) * 1993-12-01 1996-01-01 S E De Carburos Metalicos S A NEW PROCEDURE FOR THE DIGESTION OF SLUDGE IN WASTEWATER TREATMENT TREATMENTS.
EP1785399B1 (en) * 2004-07-30 2010-09-15 Eiwa Land Environment Co., Ltd. Waste water purification apparatus
JP4929641B2 (en) * 2005-08-04 2012-05-09 日本下水道事業団 Organic waste liquid treatment equipment
JP4665693B2 (en) * 2005-09-30 2011-04-06 栗田工業株式会社 Method and apparatus for treating organic waste
US8894856B2 (en) 2008-03-28 2014-11-25 Evoqua Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
WO2009120384A2 (en) 2008-03-28 2009-10-01 Siemens Water Technologies Corp. Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US8894857B2 (en) 2008-03-28 2014-11-25 Evoqua Water Technologies Llc Methods and systems for treating wastewater
US8685247B2 (en) 2009-12-03 2014-04-01 Evoqua Water Technologies Llc Systems and methods for nutrient removal in biological treatment systems
WO2012024279A1 (en) 2010-08-18 2012-02-23 Siemens Industry, Inc. Contact-stabilization/prime-float hybrid
US9359236B2 (en) 2010-08-18 2016-06-07 Evoqua Water Technologies Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
US10131550B2 (en) 2013-05-06 2018-11-20 Evoqua Water Technologies Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
CN110683724B (en) * 2019-11-13 2022-04-05 湖南军信环保股份有限公司 Treatment method for improving centrifugal dehydration efficiency of anaerobic sludge

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368967A (en) * 1965-10-19 1968-02-13 Beloit Corp Process for treatment of sludge and apparatus therefor
DE1584958A1 (en) * 1965-12-20 1970-02-05 Heinrich Onnen Method and device for cleaning waste water
US3926794A (en) * 1974-06-28 1975-12-16 Union Carbide Corp Warm sludge digestion with oxygen

Also Published As

Publication number Publication date
ES474110A1 (en) 1979-07-16
FR2440920B2 (en) 1984-06-29
SU973013A3 (en) 1982-11-07
DE2844498C2 (en) 1985-08-29
DE2844498A1 (en) 1979-04-19
PH17462A (en) 1984-08-29
AT385979B (en) 1988-06-10
IT1116823B (en) 1986-02-10
ATA732678A (en) 1987-11-15
BR7806742A (en) 1979-05-08
IT7851482A0 (en) 1978-10-12
DK454978A (en) 1979-04-14
CA1115432A (en) 1981-12-29
JPS5464848A (en) 1979-05-25
DD140740A5 (en) 1980-03-26
GB2006743A (en) 1979-05-10
FR2440920A2 (en) 1980-06-06

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