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WO2007050699A3 - Apparatus and method using a simultaneous, sequential or pulsed aerobic and/or anoxic digestion process - Google Patents

Apparatus and method using a simultaneous, sequential or pulsed aerobic and/or anoxic digestion process Download PDF

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Publication number
WO2007050699A3
WO2007050699A3 PCT/US2006/041661 US2006041661W WO2007050699A3 WO 2007050699 A3 WO2007050699 A3 WO 2007050699A3 US 2006041661 W US2006041661 W US 2006041661W WO 2007050699 A3 WO2007050699 A3 WO 2007050699A3
Authority
WO
WIPO (PCT)
Prior art keywords
aerobic
anoxic
pulsed
sequential
simultaneous
Prior art date
Application number
PCT/US2006/041661
Other languages
French (fr)
Other versions
WO2007050699A2 (en
Inventor
Sudhir N Murthy
John T Novak
Walter F Bailey Jr
Glen T Daigger
Perry Schafer
Christopher Peot
Original Assignee
D C Water & Sewer Authority
Sudhir N Murthy
John T Novak
Walter F Bailey Jr
Glen T Daigger
Perry Schafer
Christopher Peot
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 D C Water & Sewer Authority, Sudhir N Murthy, John T Novak, Walter F Bailey Jr, Glen T Daigger, Perry Schafer, Christopher Peot filed Critical D C Water & Sewer Authority
Publication of WO2007050699A2 publication Critical patent/WO2007050699A2/en
Publication of WO2007050699A3 publication Critical patent/WO2007050699A3/en

Links

Classifications

    • 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
    • C02F11/02—Biological treatment
    • 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
    • C02F11/02—Biological treatment
    • C02F11/04—Anaerobic treatment; Production of methane by such processes
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/58—Reaction vessels connected in series or in parallel
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/20—Sludge processing

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Molecular Biology (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Genetics & Genomics (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Microbiology (AREA)
  • Sustainable Development (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Clinical Laboratory Science (AREA)
  • Treatment Of Sludge (AREA)

Abstract

An improved process for sludge treatment includes anaerobic digestion followed by post-mesophilic aerobic and/or anoxic digestion. The first anaerobic step may be performed under either mesophilic or thermophilic conditions. The subsequent aerobic/ anoxic digestion may be performed using either simultaneous, sequential or pulsed aerobic and anoxic conditions. An apparatus for performing the improved sludge treatment may be one digester for performing the anaerobic followed by aerobic/anoxic digestion. Alternatively, the system for performing the improved sludge treatment techniques may be at least two digest reactors.
PCT/US2006/041661 2005-10-26 2006-10-26 Apparatus and method using a simultaneous, sequential or pulsed aerobic and/or anoxic digestion process WO2007050699A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73002705P 2005-10-26 2005-10-26
US60/730,027 2005-10-26

Publications (2)

Publication Number Publication Date
WO2007050699A2 WO2007050699A2 (en) 2007-05-03
WO2007050699A3 true WO2007050699A3 (en) 2007-11-08

Family

ID=37968528

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/041661 WO2007050699A2 (en) 2005-10-26 2006-10-26 Apparatus and method using a simultaneous, sequential or pulsed aerobic and/or anoxic digestion process

Country Status (1)

Country Link
WO (1) WO2007050699A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101823816B (en) * 2010-05-05 2011-08-31 天津大学 Aerobic sludge zero discharge technology in potato alcohol wastewater treatment process
CN101875527B (en) * 2010-07-16 2011-09-28 天津大学 High-efficiency treatment method of potato alcohol wastewater

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5601719A (en) * 1996-01-11 1997-02-11 Black & Veatch Biological nutrient removal process for treatment of wastewater
US6015496A (en) * 1993-04-12 2000-01-18 Khudenko; Boris M. In-sewer treatment of wastewater and sludges

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6015496A (en) * 1993-04-12 2000-01-18 Khudenko; Boris M. In-sewer treatment of wastewater and sludges
US5601719A (en) * 1996-01-11 1997-02-11 Black & Veatch Biological nutrient removal process for treatment of wastewater

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEN ET AL.: "Distribution and change of mitochondrial activity in combined UASB and AFB reactors for wastewater treatment", BIOPROCESS AND BIOSYSTEMS ENGINEERING, vol. 22, no. 4, April 2000 (2000-04-01) *
FERRAN ET AL.: "Thw two phase anaerobic digestion process: sludge stabilization and pathogens reduction", WATER SCIENCE AND TECHNOLOGY, vol. 42, no. 9, 2000, pages 41 - 47 *

Also Published As

Publication number Publication date
WO2007050699A2 (en) 2007-05-03

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