NL7802856A - Bubble generator, esp. for oxidn. of liq. phase with air - has nozzles injecting gas into liq. stream in tower part of divided vessel with orifice outlets - Google Patents

Bubble generator, esp. for oxidn. of liq. phase with air - has nozzles injecting gas into liq. stream in tower part of divided vessel with orifice outlets

Info

Publication number
NL7802856A
NL7802856A NL7802856A NL7802856A NL7802856A NL 7802856 A NL7802856 A NL 7802856A NL 7802856 A NL7802856 A NL 7802856A NL 7802856 A NL7802856 A NL 7802856A NL 7802856 A NL7802856 A NL 7802856A
Authority
NL
Netherlands
Prior art keywords
liq
vessel
oxidn
division plate
air
Prior art date
Application number
NL7802856A
Other languages
Dutch (nl)
Other versions
NL188144C (en
NL188144B (en
Original Assignee
Dowa Mining Co
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 Dowa Mining Co filed Critical Dowa Mining Co
Priority to NL7802856A priority Critical patent/NL188144C/en
Publication of NL7802856A publication Critical patent/NL7802856A/en
Publication of NL188144B publication Critical patent/NL188144B/en
Application granted granted Critical
Publication of NL188144C publication Critical patent/NL188144C/en

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
    • C02F3/20—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
    • C02F3/1294—"Venturi" aeration means
    • 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)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

A vessel comprising top, sidewall and base, is divided into 2 chambers by a horizontal division plate. In the lower chamber gas connections pass through the base end with a nozzle. These nozzles are positioned close to orifices in the horizontal division plate. A liq. inlet is connected to the sidewall of the lower chamber of the vessel. The upper chamber includes the top of the vessel arranged a short distance from the division plate. The rapid stream of gas and liq. coming through the orifices in the division plate impinge on the top of the vessel. This forms very fine gas bubbles in the liquid. One or more orifices are positioned in the sidewall of the upper chamber for the exit of the liq. contg. fine bubbles. Used for oxidn. of liqs. in a tower, e.g. oxidn. of sulphite ions in soln of aluminium sulphate contg. absorbed SO2 using air. Appts. has no moving parts subject to abrasion, is easy to construct and install and is more efficient than the moving devices.
NL7802856A 1978-03-16 1978-03-16 DEVICE FOR PREPARING A GAS FLUID SUSPENSION. NL188144C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7802856A NL188144C (en) 1978-03-16 1978-03-16 DEVICE FOR PREPARING A GAS FLUID SUSPENSION.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7802856A NL188144C (en) 1978-03-16 1978-03-16 DEVICE FOR PREPARING A GAS FLUID SUSPENSION.

Publications (3)

Publication Number Publication Date
NL7802856A true NL7802856A (en) 1979-09-18
NL188144B NL188144B (en) 1991-11-18
NL188144C NL188144C (en) 1992-04-16

Family

ID=19830500

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7802856A NL188144C (en) 1978-03-16 1978-03-16 DEVICE FOR PREPARING A GAS FLUID SUSPENSION.

Country Status (1)

Country Link
NL (1) NL188144C (en)

Also Published As

Publication number Publication date
NL188144C (en) 1992-04-16
NL188144B (en) 1991-11-18

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee

Effective date: 19951001