GB1458302A - Process and apparatus for the aeration of waste water - Google Patents

Process and apparatus for the aeration of waste water

Info

Publication number
GB1458302A
GB1458302A GB365674A GB365674A GB1458302A GB 1458302 A GB1458302 A GB 1458302A GB 365674 A GB365674 A GB 365674A GB 365674 A GB365674 A GB 365674A GB 1458302 A GB1458302 A GB 1458302A
Authority
GB
United Kingdom
Prior art keywords
water
waste water
jets
aeration
basin
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
GB365674A
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 Stamicarbon BV filed Critical Stamicarbon BV
Publication of GB1458302A publication Critical patent/GB1458302A/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
    • C02F3/1257—Oxidation ditches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234—Surface aerating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234—Surface aerating
    • B01F23/2341—Surface aerating by cascading, spraying or projecting a liquid into a gaseous atmosphere
    • B01F23/23413—Surface aerating by cascading, spraying or projecting a liquid into a gaseous atmosphere using nozzles for projecting the liquid into the gas atmosphere
    • 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
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • 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
    • 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
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Activated Sludge Processes (AREA)

Abstract

1458302 Waste water aeration STAMICARBON BV 25 Jan 1974 [29 Jan 1973] 03656/74 Heading B1C In a process and apparatus for the aeration of waste water containing suspended biologically active sludge, jets of recycled water are directed at an angle of not greater than 60‹ and at a velocity of from 3 to 12 metres/ second onto the surface of the waste water which is contained in a basin of circular, elliptical or regular polygonal horizontal crosssection, whereby aeration of the water and a rotary flow Vr is produced. In Fig. 1, two tubes 2, 3 having outflow openings 6 direct the jets of water onto the waste water in circular basin 1. Untreated water is introduced at 4 and treated water leaves at 5 while pump units 7 draw water from the basin and feed it to the tubes. In Fig. 2 the pump units include an impeller 11 driven by motor 13. Some of openings 6 may be blanked off to vary the output and the angle of the jets may be varied in an arrangement of relatively rotatable apertured pipes 100, 104 shown in Fig. 3. The output of the jets may be varied by changing the speed of motor 13.
GB365674A 1973-01-29 1974-01-25 Process and apparatus for the aeration of waste water Expired GB1458302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7301201.A NL163196C (en) 1973-01-29 1973-01-29 METHOD FOR AERATING WASTE WATER.

Publications (1)

Publication Number Publication Date
GB1458302A true GB1458302A (en) 1976-12-15

Family

ID=19818099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB365674A Expired GB1458302A (en) 1973-01-29 1974-01-25 Process and apparatus for the aeration of waste water

Country Status (15)

Country Link
JP (1) JPS5636998B2 (en)
AT (1) AT335929B (en)
BE (1) BE810276A (en)
CA (1) CA1014283A (en)
CH (1) CH575886A5 (en)
DD (1) DD110028A5 (en)
DE (1) DE2404198C3 (en)
ES (1) ES422681A1 (en)
FR (1) FR2215398B1 (en)
GB (1) GB1458302A (en)
IT (1) IT1002785B (en)
NL (1) NL163196C (en)
SE (1) SE8000075L (en)
SU (1) SU733514A3 (en)
ZA (1) ZA74565B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202762A (en) * 1973-01-29 1980-05-13 Stamicarbon, B.V. Process and device for the aeration of waste water
US4306968A (en) * 1978-10-10 1981-12-22 Mcneil Corporation Sewage treatment system
JPH0162897U (en) * 1987-10-14 1989-04-21
JP3829472B2 (en) * 1998-04-27 2006-10-04 ブラザー工業株式会社 Sewing needle holding device for sewing machine

Also Published As

Publication number Publication date
DE2404198A1 (en) 1974-08-01
AT335929B (en) 1977-04-12
NL7301201A (en) 1974-07-31
DD110028A5 (en) 1974-12-05
FR2215398B1 (en) 1979-04-06
ZA74565B (en) 1974-11-27
JPS5636998B2 (en) 1981-08-27
NL163196C (en) 1980-08-15
DE2404198C3 (en) 1979-04-05
JPS49105361A (en) 1974-10-05
CA1014283A (en) 1977-07-19
DE2404198B2 (en) 1978-08-10
ATA62674A (en) 1976-07-15
SU733514A3 (en) 1980-05-05
AU6497274A (en) 1975-07-31
NL163196B (en) 1980-03-17
IT1002785B (en) 1976-05-20
FR2215398A1 (en) 1974-08-23
BE810276A (en) 1974-07-29
SE8000075L (en) 1980-01-04
CH575886A5 (en) 1976-05-31
ES422681A1 (en) 1976-04-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee