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Eckenfelder Jr, 1959 - Google Patents

Factors affecting the aeration efficiency of sewage and industrial wastes

Eckenfelder Jr, 1959

Document ID
14830225445242931452
Author
Eckenfelder Jr W
Publication year
Publication venue
Sewage and Industrial Wastes

External Links

Snippet

When turbine aeration is employed, the bubble size and hold-up are influ enced by both air rate and turbine speed. The bubble diameter has been shown to vary inversely as the three halves power of the peripheral speed (4). Oxygen absorption in the turbine aerator will be …
Continue reading at www.jstor.org (other versions)

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
    • C02F3/20—Activated sludge processes using diffusers
    • 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
    • C02F3/1278—Provisions for mixing or aeration of the mixed liquor
    • C02F3/1289—Aeration by saturation under super-atmospheric pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00—Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04—Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099—Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04531—Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00—Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04—Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099—Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/0446—Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using flow mixing means for introducing the gas, e.g. in conduits or in vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/04—Injector mixers, i.e. one or more components being added to a flowing main component
    • B01F5/0403—Mixing conduits or tubes, i.e. conduits or tubes through which the main component is flown

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