GB2291417B - Activated sludge process - Google Patents

Activated sludge process

Info

Publication number
GB2291417B
GB2291417B GB9414456A GB9414456A GB2291417B GB 2291417 B GB2291417 B GB 2291417B GB 9414456 A GB9414456 A GB 9414456A GB 9414456 A GB9414456 A GB 9414456A GB 2291417 B GB2291417 B GB 2291417B
Authority
GB
United Kingdom
Prior art keywords
activated sludge
sludge process
activated
sludge
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 - Fee Related
Application number
GB9414456A
Other versions
GB2291417A (en
GB9414456D0 (en
Inventor
Paul Frederick Cooper
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.)
WRC PLC
Original Assignee
WRC PLC
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 WRC PLC filed Critical WRC PLC
Priority to GB9414456A priority Critical patent/GB2291417B/en
Publication of GB9414456D0 publication Critical patent/GB9414456D0/en
Publication of GB2291417A publication Critical patent/GB2291417A/en
Application granted granted Critical
Publication of GB2291417B publication Critical patent/GB2291417B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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)
  • Activated Sludge Processes (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
GB9414456A 1994-07-18 1994-07-18 Activated sludge process Expired - Fee Related GB2291417B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9414456A GB2291417B (en) 1994-07-18 1994-07-18 Activated sludge process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9414456A GB2291417B (en) 1994-07-18 1994-07-18 Activated sludge process

Publications (3)

Publication Number Publication Date
GB9414456D0 GB9414456D0 (en) 1994-09-07
GB2291417A GB2291417A (en) 1996-01-24
GB2291417B true GB2291417B (en) 1998-05-13

Family

ID=10758504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9414456A Expired - Fee Related GB2291417B (en) 1994-07-18 1994-07-18 Activated sludge process

Country Status (1)

Country Link
GB (1) GB2291417B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19616763A1 (en) * 1996-04-26 1997-11-06 Wabag Wassertechn Anlagen Gmbh Method and device for treating filter backwash water

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1289519A (en) * 1968-09-23 1972-09-20
GB1341783A (en) * 1970-01-12 1973-12-25 Dravo Corp Filter
GB1406255A (en) * 1972-08-10 1975-09-17 Tymoszczuk J Process and apparatus for treating wastes by
US4122013A (en) * 1977-11-15 1978-10-24 Greenleaf Jr John W Sewage treatment system
GB1560833A (en) * 1976-07-03 1980-02-13 Tymoszczuk J Process and apparatus for treating wastes by a combined activated sludge and biological filter bed
US4207179A (en) * 1976-07-28 1980-06-10 Phillips Petroleum Company Biotreatment using carbon treated recycle and/or clarifier effluent backwash
EP0151328A1 (en) * 1984-02-06 1985-08-14 D.R.I.M. Limited Element from intumescent fire-proof composition and specific method for preparing same
DE3916679A1 (en) * 1989-05-23 1990-11-29 Boehnke Botho Installation for purifying waste water, esp. domestic waste water - has 2 biologically intensified filtration stages, 1st ŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸ for nitrification and 2nd for denitrification
GB2236689A (en) * 1989-09-13 1991-04-17 Pwt Projects Ltd Continuous solids/liquid separator

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1289519A (en) * 1968-09-23 1972-09-20
GB1341783A (en) * 1970-01-12 1973-12-25 Dravo Corp Filter
GB1406255A (en) * 1972-08-10 1975-09-17 Tymoszczuk J Process and apparatus for treating wastes by
GB1560833A (en) * 1976-07-03 1980-02-13 Tymoszczuk J Process and apparatus for treating wastes by a combined activated sludge and biological filter bed
US4207179A (en) * 1976-07-28 1980-06-10 Phillips Petroleum Company Biotreatment using carbon treated recycle and/or clarifier effluent backwash
US4122013A (en) * 1977-11-15 1978-10-24 Greenleaf Jr John W Sewage treatment system
EP0151328A1 (en) * 1984-02-06 1985-08-14 D.R.I.M. Limited Element from intumescent fire-proof composition and specific method for preparing same
DE3916679A1 (en) * 1989-05-23 1990-11-29 Boehnke Botho Installation for purifying waste water, esp. domestic waste water - has 2 biologically intensified filtration stages, 1st ŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸŸ for nitrification and 2nd for denitrification
GB2236689A (en) * 1989-09-13 1991-04-17 Pwt Projects Ltd Continuous solids/liquid separator

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
WPI Accession No 75-57265W/35 and CA 972877 *
WPI Accession No 80-52172C and JP 55075794 *

Also Published As

Publication number Publication date
GB2291417A (en) 1996-01-24
GB9414456D0 (en) 1994-09-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060718