GB1206031A - Method of and apparatus for producing substantially homogeneous quantities of microscopic gas bubbles - Google Patents

Method of and apparatus for producing substantially homogeneous quantities of microscopic gas bubbles

Info

Publication number
GB1206031A
GB1206031A GB199268A GB199268A GB1206031A GB 1206031 A GB1206031 A GB 1206031A GB 199268 A GB199268 A GB 199268A GB 199268 A GB199268 A GB 199268A GB 1206031 A GB1206031 A GB 1206031A
Authority
GB
United Kingdom
Prior art keywords
liquid
layer
bubbles
sparger
microns
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
GB199268A
Inventor
Donald Stacy Mcmanus
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.)
General Dynamics Corp
Original Assignee
General Dynamics Corp
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 General Dynamics Corp filed Critical General Dynamics Corp
Priority to GB199268A priority Critical patent/GB1206031A/en
Publication of GB1206031A publication Critical patent/GB1206031A/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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C02F1/763—Devices for the addition of such compounds in gaseous form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • 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
    • C02F3/20—Activated sludge processes using diffusers
    • 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)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)

Abstract

1,206,031. Aerating liquid. GENERAL DYNAMICS CORP. 12 Jan., 1968, No. 1992/ 68. Heading B1C. A method of producing uniform gas bubbles of microscopic size (i.e. up to 10 microns) in a liquid comprises supplying the gas to a porous layer 10' having outlets 20 of smaller diameter than the desired bubbles, and establishing over it a flow of liquid at a sufficiently high velocity to create a turbulent boundary layer 14 having a laminar sub-layer 13 adjoining the surface and having a thickness less than 10 microns, whereby the bubbles are detached from the surface when they begin to be large enough to project into the turbulent layer. An apparatus comprises a cylindrical hollow sparger 35 within a coaxial housing 34, forming between them an annular passage for liquid which tapers outwardly in the downstream direction. There are longitudinal guide vanes 45 in the passage. The sparger can be axially adjusted by a hand wheel 42 so that its conical tail 36 forms with the convergant housing wall 34a a flow restrictor 51 which can be adjusted to secure the desired liquid flow rate.
GB199268A 1968-01-12 1968-01-12 Method of and apparatus for producing substantially homogeneous quantities of microscopic gas bubbles Expired GB1206031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB199268A GB1206031A (en) 1968-01-12 1968-01-12 Method of and apparatus for producing substantially homogeneous quantities of microscopic gas bubbles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB199268A GB1206031A (en) 1968-01-12 1968-01-12 Method of and apparatus for producing substantially homogeneous quantities of microscopic gas bubbles

Publications (1)

Publication Number Publication Date
GB1206031A true GB1206031A (en) 1970-09-23

Family

ID=9731703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB199268A Expired GB1206031A (en) 1968-01-12 1968-01-12 Method of and apparatus for producing substantially homogeneous quantities of microscopic gas bubbles

Country Status (1)

Country Link
GB (1) GB1206031A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530484A1 (en) * 1982-07-26 1984-01-27 Sgn Soc Gen Tech Nouvelle Process and device for dissolving gas in a liquid.
GB2174918A (en) * 1985-04-01 1986-11-19 Perkin Elmer Metco Gmbh Gas mixer
CN113477108A (en) * 2021-04-29 2021-10-08 中冶长天国际工程有限责任公司 Air-oxygen mixer for oxygen-enriched ignition and control method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530484A1 (en) * 1982-07-26 1984-01-27 Sgn Soc Gen Tech Nouvelle Process and device for dissolving gas in a liquid.
GB2174918A (en) * 1985-04-01 1986-11-19 Perkin Elmer Metco Gmbh Gas mixer
US4793712A (en) * 1985-04-01 1988-12-27 Perkin-Elmer-Metco Gmbh Gas mixer
CN113477108A (en) * 2021-04-29 2021-10-08 中冶长天国际工程有限责任公司 Air-oxygen mixer for oxygen-enriched ignition and control method thereof
CN113477108B (en) * 2021-04-29 2022-06-07 中冶长天国际工程有限责任公司 Air-oxygen mixer for oxygen-enriched ignition and control method thereof

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees