GB1452961A - Sewage treatment - Google Patents

Sewage treatment

Info

Publication number
GB1452961A
GB1452961A GB102873A GB102873A GB1452961A GB 1452961 A GB1452961 A GB 1452961A GB 102873 A GB102873 A GB 102873A GB 102873 A GB102873 A GB 102873A GB 1452961 A GB1452961 A GB 1452961A
Authority
GB
United Kingdom
Prior art keywords
oxygen
sewage
treatment
injection
sewer
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
GB102873A
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.)
BOC Group Ltd
Original Assignee
BOC International 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
Application filed by BOC International Ltd filed Critical BOC International Ltd
Priority to GB102873A priority Critical patent/GB1452961A/en
Priority to ZA740115A priority patent/ZA74115B/en
Priority to AU64292/74A priority patent/AU482167B2/en
Priority to CA189,700A priority patent/CA1042568A/en
Priority to DE2400602A priority patent/DE2400602C2/en
Priority to BR7480A priority patent/BR7400080D0/en
Priority to US05/698,758 priority patent/US4115258A/en
Priority to US05/698,757 priority patent/US4148726A/en
Publication of GB1452961A publication Critical patent/GB1452961A/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
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1252—Cylindrical tanks with horizontal axis
    • 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

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 Water By Oxidation Or Reduction (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

1452961 Sewage treatment with oxygen BOC INTERNATIONAL Ltd 3 Jan 1974 [8 Jan 1973 1 March 1973 17 Aug 1973] 1028/73 10080/73 and 38910/73 Heading C1C The invention aims at providing a treatment which combats bacterial formation of H 2 S in a sewer; it claims a process of treating sewage while it is being held on or is flowing through a sewer, in which oxygen-rich gas is injected under pressure into the sewage. Oxygen-rich gas means pure oxygen or an oxygen-containing gas mixture having a proportion of oxygen greater than that of air; a small proportion of ozone may be included. Injection pressures are in the range 1À5-10 bars, with bubbles of diameter 0À05 to 0À15 mm. Preferably the oxygen is 98% pure. The treatment may be used with rising or gravity sewers. The dissolved oxygen concentration or the BOD of .the sewage may be monitored downstream of the injection point(s) and used to control the oxygen feed automatically. A computer may be used to control the injection.
GB102873A 1973-01-08 1973-01-08 Sewage treatment Expired GB1452961A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB102873A GB1452961A (en) 1973-01-08 1973-01-08 Sewage treatment
ZA740115A ZA74115B (en) 1973-01-08 1974-01-07 Sewage treatment
AU64292/74A AU482167B2 (en) 1973-01-08 1974-01-08 Process for treating sewage flowing through or being held ina sewer
CA189,700A CA1042568A (en) 1973-01-08 1974-01-08 Sewage treatment
DE2400602A DE2400602C2 (en) 1973-01-08 1974-01-08 Process for the treatment of waste water located in a sewer
BR7480A BR7400080D0 (en) 1973-01-08 1974-01-08 SEWAGE TREATMENT PROCESS AND APPLIANCE
US05/698,758 US4115258A (en) 1973-01-08 1976-06-22 Treatment of sewage
US05/698,757 US4148726A (en) 1973-01-08 1976-06-22 Process for treatment of sewage in a gravity sewer

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB102873A GB1452961A (en) 1973-01-08 1973-01-08 Sewage treatment
GB1008073 1973-03-01
GB3891073 1973-08-17

Publications (1)

Publication Number Publication Date
GB1452961A true GB1452961A (en) 1976-10-20

Family

ID=27253807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB102873A Expired GB1452961A (en) 1973-01-08 1973-01-08 Sewage treatment

Country Status (4)

Country Link
BR (1) BR7400080D0 (en)
CA (1) CA1042568A (en)
DE (1) DE2400602C2 (en)
GB (1) GB1452961A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128175A (en) * 1982-10-07 1984-04-26 Boc Group Plc Method and apparatus for treating sewage
GB2225317A (en) * 1988-11-02 1990-05-30 Wallace Monaghan Process for treatment of sewage within sewers
EP1970353A1 (en) * 2006-08-31 2008-09-17 Ragnvald Gustafsson Method and device for reduction of hydrogen sulfide

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825205C2 (en) * 1978-06-08 1987-04-23 Linde Ag, 6200 Wiesbaden Device for feeding a gas into a liquid flowing in a channel
GB2071633B (en) * 1980-03-07 1984-02-08 Kubota Ltd Waste water treating apparatus
WO2005083190A1 (en) * 2004-03-01 2005-09-09 Intelligent Environmental Systems B.V. Method of operating a sewage system and such a sewage system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525685A (en) * 1969-06-25 1970-08-25 Richard N Edwards Intermediate sewage treatment process and means
DE2216917C3 (en) * 1972-04-07 1974-09-19 Richard Dipl.-Ing. 6100 Darmstadt Schreiber Device for dissolving oxygen in water

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128175A (en) * 1982-10-07 1984-04-26 Boc Group Plc Method and apparatus for treating sewage
GB2225317A (en) * 1988-11-02 1990-05-30 Wallace Monaghan Process for treatment of sewage within sewers
EP1970353A1 (en) * 2006-08-31 2008-09-17 Ragnvald Gustafsson Method and device for reduction of hydrogen sulfide

Also Published As

Publication number Publication date
AU6429274A (en) 1975-07-10
CA1042568A (en) 1978-11-14
BR7400080D0 (en) 1974-08-22
DE2400602C2 (en) 1984-02-16
DE2400602A1 (en) 1974-07-11

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19940102