SE8000075L - DEVICE FOR AIR WASTE WATER - Google Patents

DEVICE FOR AIR WASTE WATER

Info

Publication number
SE8000075L
SE8000075L SE8000075A SE8000075A SE8000075L SE 8000075 L SE8000075 L SE 8000075L SE 8000075 A SE8000075 A SE 8000075A SE 8000075 A SE8000075 A SE 8000075A SE 8000075 L SE8000075 L SE 8000075L
Authority
SE
Sweden
Prior art keywords
water
basin
jets
waste water
aeration
Prior art date
Application number
SE8000075A
Other languages
Swedish (sv)
Inventor
F J Fontein
H F Jennekens
Original Assignee
Stamicarbon
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 filed Critical Stamicarbon
Publication of SE8000075L publication Critical patent/SE8000075L/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
    • C02F3/1236—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

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.

Claims (1)

natentiravnatentirav 1. Anordning fbr luftning av avloppsvatten, vid vilken vat- ten som innehaller aktivt slam i suspensionsform, luftas medelst ett flertal av en cirkulationspumpanordning alstrade vattenstralar av recirknierande vatten, och vilken irknefattar en bas-sang ;1), Over vilken ett vattentillfbrselror (2) Or belaget, vilket har ett flertal utstrbmningsmunstycken (6), som Or anbragta sa att vattenstralarna riktas snett uppifran net vatskeytanibassangen kannetecknad av att bassangen (1), uppifran sett tar tv& med varandra och med vattentilifOrselrOret (2) parallella langsidor, att ett vertikalsnitt genom den for fyllning med avloppsvatten avsedda delen av bassangen (2) parallellt med bassangens kortsida bildas av de vertikala sidorna av en fyrhbrning (3) med sidorna R i vertikalled och 20 i horisontell led cant en halvcirkel (4) med radien R, att de vinklar, I villa utstromningsmunstyckena (6) Or anordnade att rikta stralarna i fbrhallande till horisontalplanet, Or inst011bara mellan 0° och 600, att en sadan anordning f8r recirkulering av vattnet anvOndes, medelst vil-1, utstrOmnings,gheten hos det recir- kulerade vattnet genom utstromningsmunstyckena (6) kan regleras fran 3 till 12 m/s, foretradesvis fran 4 till 8 m/s, och att utstromningsmunstyckena Or sa anbragta och riktade, aft vattnet I bassangen bibringas en cirkulationsrbrelse (Vr),som i lodrata plan forloper parallellt med bassangens kortsidor.A device for aerating waste water, in which the water containing active sludge in suspension form is aerated by means of a plurality of water jets of recirculating water generated by a circulation pump device, and which comprises a base-song; 1), above which a water supply pipe (2) ) Or coated, which has a plurality of outflow nozzles (6), which Or applied so that the water jets are directed obliquely from above the water surface tanan basin, characterized by the basin (1), from above taking two with each other and with the water supply pipe (2) parallel longitudinal sides, that a vertical section through the part of the basin (2) intended for filling with waste water parallel to the short side of the basin is formed by the vertical sides of a quadrilateral (3) with the sides R in the vertical direction and in the horizontal direction by a semicircle (4) with the radius R, that they angles, In the villa outflow nozzles (6) Or arranged to direct the jets in relation to the horizontal plane, Or adjustable between 0 ° and 600, that such a device for recirculating the water was used, by means of the flow of the recirculated water through the outflow nozzles (6) can be regulated from 3 to 12 m / s, preferably from 4 to 8 m / s, and that the outflow nozzles Or so arranged and directed, aft the water In the basin a circulating motion (Vr) is imparted, which in vertical planes runs parallel to the short sides of the basin.
SE8000075A 1973-01-29 1980-01-04 DEVICE FOR AIR WASTE WATER SE8000075L (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
SE8000075L true SE8000075L (en) 1980-01-04

Family

ID=19818099

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8000075A SE8000075L (en) 1973-01-29 1980-01-04 DEVICE FOR AIR 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
JPS5636998B2 (en) 1981-08-27
DE2404198B2 (en) 1978-08-10
NL7301201A (en) 1974-07-31
ATA62674A (en) 1976-07-15
FR2215398B1 (en) 1979-04-06
CA1014283A (en) 1977-07-19
AT335929B (en) 1977-04-12
DE2404198A1 (en) 1974-08-01
SU733514A3 (en) 1980-05-05
ES422681A1 (en) 1976-04-01
IT1002785B (en) 1976-05-20
FR2215398A1 (en) 1974-08-23
DE2404198C3 (en) 1979-04-05
NL163196C (en) 1980-08-15
AU6497274A (en) 1975-07-31
BE810276A (en) 1974-07-29
JPS49105361A (en) 1974-10-05
ZA74565B (en) 1974-11-27
DD110028A5 (en) 1974-12-05
NL163196B (en) 1980-03-17
GB1458302A (en) 1976-12-15
CH575886A5 (en) 1976-05-31

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