GB1470549A - Treatment of a liquid material with oxygenating gases - Google Patents

Treatment of a liquid material with oxygenating gases

Info

Publication number
GB1470549A
GB1470549A GB2799774A GB2799774A GB1470549A GB 1470549 A GB1470549 A GB 1470549A GB 2799774 A GB2799774 A GB 2799774A GB 2799774 A GB2799774 A GB 2799774A GB 1470549 A GB1470549 A GB 1470549A
Authority
GB
United Kingdom
Prior art keywords
gas
liquid
recycled
oxygenating
valve
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
GB2799774A
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of GB1470549A publication Critical patent/GB1470549A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/22—Fuel cells in which the fuel is based on materials comprising carbon or oxygen or hydrogen and other elements; Fuel cells in which the fuel is based on materials comprising only elements other than carbon, oxygen or hydrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/28—Purification; Separation
    • C01D1/34—Purification; Separation with selective solvents
    • 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
    • C02F3/006—Regulation methods for biological treatment
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Molecular Biology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Activated Sludge Processes (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

1470549 Aerating liquids L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 24 June 1974 [25 June 1973] 27997/ 74 Heading B1C A method of treating a liquid (e.g. effluent) with oxygenating gas in a sealed container comprises regulating the quantities of fresh oxygenating gas and recycled oxygenating gas as a function of three parameters, namely the pressure of the atmosphere within the container; the proportion of oxygenating gas in the container atmosphere; and the quantity of oxygen in the liquid. The parameters may be sampled in succession. As shown the liquid in a tank 1 is treated with oxygenating gas O 3 made up partly of recycled gas O 2 and partly of fresh gas O 1 admitted through a valve 7 operated by a controller 10. The pressure P above the liquid is first sensed; if above a pre-determined value the valve 7 is closed and only recycled gas is supplied. If lower, measurement of the oxygenating gas in the container atmosphere, O a , takes place; if this is above a predetermined value only recycled gas continues to be supplied. If below, measurement of the oxygen O e in the liquid takes place. If this is above a predetermined value which constitutes the upper limits of a coating range, only recycled gas continues to be supplied. If below this value and within the working range, the valve 7 is opened to supply also fresh gas. If below the lower limit of the working range, the supply of recycled gas is also increased as by starting up additional compressors 14, 16. In another embodiment (see Fig. 2, not shown) additional compressors are not provided but the oxygen level of the recycled gas is raised by increasing the predetermined value O a . The working range for O e may be 2.5-6 ppm and P may be 30 cms of liquid in the tank.
GB2799774A 1973-06-25 1974-06-24 Treatment of a liquid material with oxygenating gases Expired GB1470549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7323074A FR2234035B1 (en) 1973-06-25 1973-06-25

Publications (1)

Publication Number Publication Date
GB1470549A true GB1470549A (en) 1977-04-14

Family

ID=9121496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2799774A Expired GB1470549A (en) 1973-06-25 1974-06-24 Treatment of a liquid material with oxygenating gases

Country Status (7)

Country Link
JP (1) JPS5829132B2 (en)
CA (1) CA1027681A (en)
CH (1) CH591890A5 (en)
DE (1) DE2429793A1 (en)
FR (1) FR2234035B1 (en)
GB (1) GB1470549A (en)
NL (1) NL7408559A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH593867A5 (en) * 1975-07-14 1977-12-15 Sulzer Ag
DE2535837C3 (en) * 1975-08-12 1984-09-13 Bayer Ag, 5090 Leverkusen Process for the biological treatment of wastewater in a cascade
DE2741940C2 (en) * 1977-09-17 1986-06-26 Linde Ag, 6200 Wiesbaden Device for carrying out aerobic fermentations
JPS5534120A (en) * 1978-08-31 1980-03-10 Fuji Electric Co Ltd Dissolved oxygen control method in activated sludge process
JPH067900U (en) * 1991-12-20 1994-02-01 ホーコス株式会社 Aeration device with heater for wastewater treatment tank
DE10011022A1 (en) * 2000-03-07 2001-09-27 Meinhard Knoll Apparatus for performing synthesis, analysis or transport processes with a process fluid has a reaction zone with controlled delivery of a process fluid and control fluids with inner analysis and reaction interfaces at the side walls

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3547811A (en) * 1969-07-02 1970-12-15 Union Carbide Corp Cyclic oxygenation of bod-containing water

Also Published As

Publication number Publication date
DE2429793A1 (en) 1975-03-20
FR2234035A1 (en) 1975-01-17
JPS5043044A (en) 1975-04-18
NL7408559A (en) 1974-12-30
JPS5829132B2 (en) 1983-06-21
FR2234035B1 (en) 1979-01-12
CA1027681A (en) 1978-03-07
CH591890A5 (en) 1977-10-14

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Legal Events

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