GB2302089A - Improvements in biological aerated filters - Google Patents

Improvements in biological aerated filters

Info

Publication number
GB2302089A
GB2302089A GB9619933A GB9619933A GB2302089A GB 2302089 A GB2302089 A GB 2302089A GB 9619933 A GB9619933 A GB 9619933A GB 9619933 A GB9619933 A GB 9619933A GB 2302089 A GB2302089 A GB 2302089A
Authority
GB
United Kingdom
Prior art keywords
vessel
media
trough
voidage
treated
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
GB9619933A
Other versions
GB2302089B (en
GB9619933D0 (en
Inventor
Alan James Smith
Water Utilities Limited Thames
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.)
Thames Water Utilities Ltd
Original Assignee
Thames Water Utilities Ltd
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 GB9405871A external-priority patent/GB9405871D0/en
Application filed by Thames Water Utilities Ltd filed Critical Thames Water Utilities Ltd
Priority to GB9619933A priority Critical patent/GB2302089B/en
Publication of GB9619933D0 publication Critical patent/GB9619933D0/en
Publication of GB2302089A publication Critical patent/GB2302089A/en
Application granted granted Critical
Publication of GB2302089B publication Critical patent/GB2302089B/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
    • C02F3/06—Aerobic processes using submerged filters
    • 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
    • C02F3/04—Aerobic processes using trickle filters
    • 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)
  • Biological Treatment Of Waste Water (AREA)

Abstract

The invention relates to apparatus (1) in the form of a treatment vessel comprising a high voidage media bed (2) situated above a low voidage granular media bed (3). Fluid (4) to be treated, combined with an effluent recycle flow stream (5) and intermediate recycle flow stream (6) as appropriate, flows down through the flooded aerated high voidage media (2), through an intermediate section (7) containing a collector in the form of a trough (8) and down through the aerated packed bed of granular media (3). The trough (8) is known as a washout trough. The high voidage media is supported on a support means such as a grille or grid (9). During a cycle any surplus treated water passes out of the intermediate section (7 at 10), while backwash liquors pass out of the vessel at (11). The usual operating level of the liquid in the vessel is shown at (12), treated liquor or effluent passing out of the vessel at (13). Process air passes into the vessel (1 at 14).
GB9619933A 1994-03-24 1995-03-23 Improvements in biological aerated filters Expired - Fee Related GB2302089B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9619933A GB2302089B (en) 1994-03-24 1995-03-23 Improvements in biological aerated filters

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9405871A GB9405871D0 (en) 1994-03-24 1994-03-24 Improvements in biological aerated flooded filters
GB9619933A GB2302089B (en) 1994-03-24 1995-03-23 Improvements in biological aerated filters
PCT/GB1995/000651 WO1995025695A1 (en) 1994-03-24 1995-03-23 Improvements in biological aerated filters

Publications (3)

Publication Number Publication Date
GB9619933D0 GB9619933D0 (en) 1996-11-06
GB2302089A true GB2302089A (en) 1997-01-08
GB2302089B GB2302089B (en) 1998-07-08

Family

ID=26304573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9619933A Expired - Fee Related GB2302089B (en) 1994-03-24 1995-03-23 Improvements in biological aerated filters

Country Status (1)

Country Link
GB (1) GB2302089B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624847A1 (en) * 1987-12-21 1989-06-23 Sogea Process for biological treatment of a liquid phase and device for its use
WO1991003429A1 (en) * 1989-09-08 1991-03-21 Helm Glenn J Process and apparatus for a biological reactor to purify water
EP0524794A1 (en) * 1991-07-26 1993-01-27 Thames Water Utilities Limited A method and apparatus for treating a fluid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624847A1 (en) * 1987-12-21 1989-06-23 Sogea Process for biological treatment of a liquid phase and device for its use
WO1991003429A1 (en) * 1989-09-08 1991-03-21 Helm Glenn J Process and apparatus for a biological reactor to purify water
EP0524794A1 (en) * 1991-07-26 1993-01-27 Thames Water Utilities Limited A method and apparatus for treating a fluid

Also Published As

Publication number Publication date
GB2302089B (en) 1998-07-08
GB9619933D0 (en) 1996-11-06

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Legal Events

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

Effective date: 20080323