WO2005063355A1 - Cuve de precipitation - Google Patents

Cuve de precipitation Download PDF

Info

Publication number
WO2005063355A1
WO2005063355A1 PCT/JP2004/019062 JP2004019062W WO2005063355A1 WO 2005063355 A1 WO2005063355 A1 WO 2005063355A1 JP 2004019062 W JP2004019062 W JP 2004019062W WO 2005063355 A1 WO2005063355 A1 WO 2005063355A1
Authority
WO
WIPO (PCT)
Prior art keywords
tank body
tank
peripheral wall
inner peripheral
sedimentation
Prior art date
Application number
PCT/JP2004/019062
Other languages
English (en)
Japanese (ja)
Inventor
Rajeev Goel
Original Assignee
Kurita Water Industries Ltd.
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 Kurita Water Industries Ltd. filed Critical Kurita Water Industries Ltd.
Priority to KR1020067012335A priority Critical patent/KR101170572B1/ko
Publication of WO2005063355A1 publication Critical patent/WO2005063355A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2444—Discharge mechanisms for the classified liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
    • B01D21/0069—Making of contact surfaces, structural details, materials therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
    • B01D21/06—Settling tanks with single outlets for the separated liquid with moving scrapers with rotating scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2405—Feed mechanisms for settling tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2427—The feed or discharge opening located at a distant position from the side walls

Definitions

  • the present invention relates to a sedimentation tank (sedimentation separation apparatus) for performing sedimentation and separation treatment of raw water, and in particular, at least a part of raw water supplied to a central portion of the tank body extends along an inner peripheral wall surface of the tank body.
  • the present invention relates to a sedimentation tank configured to ascend to clear water and to discharge the clear water to the overflow portion.
  • the sedimentation / separation device includes a natural sedimentation / separation device, an inclined sedimentation / separation device, a coagulated sedimentation / separation device, and the like.
  • the horizontal flow type sedimentation basin is provided with an inflow / outflow rectification wall or an intermediate rectification wall as soon as a density flow is generated to make the flow uniform and improve the separation efficiency.
  • Circular sedimentation equipment makes it easy to collect sedimentation sludge.
  • Fig. 4 shows an example of the structure of a circular sedimentation tank.
  • the raw water supplied through a raw water supply pipe 3 to a center well 2 provided in the center of the tank body 1 is placed under the lower power tank body 1 of the center well 2. It spreads and then ascends inside the tank body 1, during which time solids are settled and separated, and clear water overflows the overflow weir 4 and flows out of the tank body.
  • the sedimented sludge is collected by a sludge collecting rake 6 that is rotationally driven by a driving device 5, and is collected through a discharging pipe 8 and discharged.
  • the inclined sedimentation separation apparatus is an apparatus in which an inclined plate or a horizontal plate is inserted into a sedimentation tank. A clarified liquid is generated on the lower surface of the plate, and the sedimentation area is increased by an amount corresponding to the insertion area, and the clarified liquid is grown. It uses the principle that speed increases. Therefore, the separation area can be increased in proportion to the insertion area of the plate, and the water area load (m 3 Zm) can be reduced, so that particles having a low sedimentation velocity can be separated.
  • a sedimentation tank provided with this inclined plate is described in Japanese Utility Model Publication No. 5-45363, Japanese Patent Application Laid-Open No. 5-200205, and the like.
  • the inclined plate is installed over a wide range, and the cost is high. is there.
  • Patent Document 1 Japanese Utility Model Publication No. 5-45363
  • Patent Document 2 JP-A-5-200205
  • An object of the present invention is to provide a sedimentation tank having a relatively simple configuration and excellent sedimentation and separation characteristics of solids.
  • the sedimentation tank of the present invention at least a part of the raw water supplied to the central part of the tank body rises along the inner peripheral wall surface of the tank body, and the overflowing part force of the upper part of the tank body A slanting plate is provided along the inner peripheral wall surface of the sedimentation tank in the sedimentation tank flowing out.
  • the inclined plate is provided on the peripheral wall surface of the inside of the tank, the sedimentation / separation treatment is efficiently performed while the water rises along the peripheral wall surface of the inside of the tank.
  • the number of the inclined plates to be installed can be reduced as compared with the conventional example, the apparatus configuration is simplified, and the apparatus configuration cost is low. It can be.
  • FIG. 1 is a longitudinal sectional view of a settling tank according to an embodiment.
  • FIG. 2a is a sectional view taken along line II-II of FIG. 1
  • FIG. 2b is a sectional view taken along line BB of FIG. 2a.
  • FIG. 3 is a side view of an inclined plate provided in another embodiment.
  • FIG. 4 is a longitudinal sectional view of a conventional sedimentation tank.
  • FIGS. 1, 2a and 2b a preferred embodiment of the present invention will be described with reference to FIGS. 1, 2a and 2b.
  • the tank body 11 has a circular shape, and a feedwell 12 is provided at the center thereof.
  • the feedwell 12 has a cylindrical shape whose upper and lower ends are open, and its upper end protrudes above the water level in the tank body 1.
  • a pit-shaped discharge section 13 is provided at the center bottom of the tank body 1 to discharge the settled solids. It is.
  • the bottom 11a of the tank 11 has a conical shape having a downward slope from the lower end of the inner peripheral wall lib of the tank 11 toward the center.
  • a large number of inclined plates 14 are provided on the inner peripheral wall l ib of the tank body 11.
  • Each inclined plate 14 has a substantially rectangular flat plate shape, and one long side thereof is fixed to the inner peripheral wall surface lib.
  • the interval between the inclined plates 14 is constant, and the inclined angle ⁇ (elevation angle with respect to the horizontal plane) of each inclined plate 14 is also the same.
  • the inclination angle ⁇ of each inclined plate 14 is preferably 45 ° -80 °, particularly about 55-70 °.
  • the inclined plate 14 is provided over the entire circumference of the inner peripheral wall surface l ib.
  • the lower end of the inclined plate 14 is located a predetermined distance above the tank body bottom surface 11a.
  • the upper end of the inclined plate 14 is located below the water surface of the tank 11.
  • the width L of the inclined plate 14 is preferably about 10 to 30% of the radius of the tank 11.
  • An overflow weir 15 as an overflow portion is provided along an upper portion of the inner peripheral wall l ib.
  • the raw water is supplied into the feedwell 12, flows mainly along the tank body bottom surface 11 a along the tank body peripheral wall surface lib, overflows the overflow weir 15, and is cleaned. It is discharged from the clear water discharge pipe 16.
  • the sedimentation separation process is performed efficiently.
  • the sediment flows from the inner peripheral wall surface l ib along the tank body bottom surface 11a, flows into the pit-shaped discharge portion 13, and is discharged out of the tank body 11 therefrom.
  • the inclined plate 14 may be a single plate-like inclined force only in one direction. As shown in FIG. 3, the inclined plate 14A may be a zigzag bent vertical plate 14A.
  • a Raschig-shaped porous filler may be filled between the inclined plates 14 (or 14A), and the flow path between the inclined plates may be finely divided.
  • a rake device for collecting mud that rotates along the bottom surface of the tank body may be provided.
  • the tank body 11 has a circular shape in plan view, but may have a rectangular shape, a pentagonal or more polygonal shape, an elliptical shape, or the like.
  • the present invention can be used in sedimentation tanks in various processes in addition to wastewater treatment.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

L'invention concerne une cuve de précipitation possédant des caractéristiques de sédimentation de matières solides excellentes grâce à une structure très simple. De l'eau brute est envoyée dans un puits d'alimentation (12), s'écoule principalement de la face inférieure (11a) d'un corps de cuve le long de la surface de paroi périphérique interne (11b) du corps de cuve, déborde d'un déversoir (15) et est évacuée par un tube de décharge d'eau décantée (16). Alors que l'eau brute s'écoule le long de la surface de paroi périphérique interne (11b) du corps de cuve, l'eau peut être soumise à une décantation efficace étant donné qu'elle s'écoule entre des plaques inclinées (14). Les dépôts s'écoulent de la surface de paroi périphérique intérieure (11b) le long de la face inférieure (11a) du corps de cuve, dans une partie de décharge du type fosse (13) et sont évacués par la partie de décharge vers l'extérieur du corps de cuve (11).
PCT/JP2004/019062 2003-12-26 2004-12-21 Cuve de precipitation WO2005063355A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020067012335A KR101170572B1 (ko) 2003-12-26 2004-12-21 침전조

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003-432751 2003-12-26
JP2003432751A JP4470486B2 (ja) 2003-12-26 2003-12-26 沈殿槽

Publications (1)

Publication Number Publication Date
WO2005063355A1 true WO2005063355A1 (fr) 2005-07-14

Family

ID=34736485

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/019062 WO2005063355A1 (fr) 2003-12-26 2004-12-21 Cuve de precipitation

Country Status (5)

Country Link
JP (1) JP4470486B2 (fr)
KR (1) KR101170572B1 (fr)
CN (1) CN100404098C (fr)
TW (1) TWI262816B (fr)
WO (1) WO2005063355A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100781400B1 (ko) 2006-10-19 2007-11-30 (주)태성이엔씨 하수 처리장의 침전지에서 고액분리하는 방법 및 이를 위한침전지

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200906736A (en) * 2007-03-30 2009-02-16 Kurita Water Ind Ltd Fluorine-containing wastewater treating apparatus and treating method
JP4877162B2 (ja) * 2007-09-03 2012-02-15 栗田工業株式会社 沈殿槽
JP4826920B2 (ja) * 2007-09-03 2011-11-30 栗田工業株式会社 沈殿槽
CN101422662B (zh) * 2008-11-28 2013-04-10 友达光电股份有限公司 固液气三相分离装置
CN101766921B (zh) * 2010-03-31 2012-07-04 大庆油田有限责任公司 多层翼形板斜式油水泥分离装置
CN102974133B (zh) * 2012-12-02 2015-04-22 淮北重科矿山机器有限公司 大型深锥浓缩池
CN104162295A (zh) * 2013-05-17 2014-11-26 颜可仁 沉淀式泥沙分离器
CN103334789A (zh) * 2013-07-16 2013-10-02 王博 一种矿井吊盘水箱
WO2016095232A1 (fr) * 2014-12-19 2016-06-23 深圳市同盛绿色科技有限公司 Système de traitement de l'eau et dispositif de sédimentation tourbillonnaire associé
KR200484654Y1 (ko) 2017-07-12 2017-11-06 주식회사 정원플랜트 고효율 침전조
CN109092554B (zh) * 2018-06-12 2020-06-19 张日养 交叉流式砂泥洗涤分离的方法及装置
KR102025700B1 (ko) 2019-06-05 2019-09-26 효림산업주식회사 방사형 흐름을 갖는 원형 슬러지 수집기
KR102034148B1 (ko) 2019-06-10 2019-10-18 효림산업주식회사 응집 농축 기능이 포함된 심층구조의 슬러지 수집기 및 이를 포함하는 고탁도 폐수처리시스템

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55167015A (en) * 1979-03-26 1980-12-26 Novex Foreign Trade Co Ltd Device for treating liquid
JPS60150807A (ja) * 1984-01-18 1985-08-08 Toray Ind Inc 沈降槽
JP2002058913A (ja) * 2000-08-22 2002-02-26 Nishihara Environ Sanit Res Corp 撹拌流形成手段を有する固液分離装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3002417C2 (de) * 1979-03-26 1984-12-20 Novex Találmányfejlesztö és Ertékesítö Külkereskedelmi Rt., Budapest Lamellenseparator für Flüssigkeiten
CN1004399B (zh) * 1987-03-12 1989-06-07 中国市政工程西北设技院 污水处理周边进出水沉淀池
JPH0693962B2 (ja) * 1991-05-08 1994-11-24 株式会社ベンカン 上向流傾斜板沈降装置
CN2125440U (zh) * 1992-05-17 1992-12-23 新疆钢铁公司炼铁厂 横变流斜板沉淀池
KR200395184Y1 (ko) 2005-06-22 2005-09-07 최대일 경사판 모듈 및 이를 갖는 고속 침전장치
KR200418339Y1 (ko) 2006-03-28 2006-06-13 (주)한맥기술 수처리 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55167015A (en) * 1979-03-26 1980-12-26 Novex Foreign Trade Co Ltd Device for treating liquid
JPS60150807A (ja) * 1984-01-18 1985-08-08 Toray Ind Inc 沈降槽
JP2002058913A (ja) * 2000-08-22 2002-02-26 Nishihara Environ Sanit Res Corp 撹拌流形成手段を有する固液分離装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100781400B1 (ko) 2006-10-19 2007-11-30 (주)태성이엔씨 하수 처리장의 침전지에서 고액분리하는 방법 및 이를 위한침전지

Also Published As

Publication number Publication date
JP2005185995A (ja) 2005-07-14
CN1898001A (zh) 2007-01-17
CN100404098C (zh) 2008-07-23
KR101170572B1 (ko) 2012-08-01
JP4470486B2 (ja) 2010-06-02
KR20060114709A (ko) 2006-11-07
TWI262816B (en) 2006-10-01
TW200520827A (en) 2005-07-01

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