GB1334056A - Liquid clarifying apparatus - Google Patents

Liquid clarifying apparatus

Info

Publication number
GB1334056A
GB1334056A GB5164970A GB5164970A GB1334056A GB 1334056 A GB1334056 A GB 1334056A GB 5164970 A GB5164970 A GB 5164970A GB 5164970 A GB5164970 A GB 5164970A GB 1334056 A GB1334056 A GB 1334056A
Authority
GB
United Kingdom
Prior art keywords
baffle
scum
liquid
oct
springs
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
GB5164970A
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.)
Envirotech Corp
Original Assignee
Envirotech Corp
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 Envirotech Corp filed Critical Envirotech Corp
Publication of GB1334056A publication Critical patent/GB1334056A/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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • B01D21/10—Settling tanks with multiple outlets for the separated liquids
    • B01D21/12—Settling tanks with multiple outlets for the separated liquids with moving scrapers
    • B01D21/14—Settling tanks with multiple outlets for the separated liquids 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
    • B01D21/2433—Discharge mechanisms for floating particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Removal Of Floating Material (AREA)

Abstract

1334056 Removing scum from liquid ENVIROTECH CORP 30 Oct 1970 [30 Oct 1969] 51649/70 Heading BID Scum is removed from liquid in a settling or aeration tank by a moving baffle 38 which pushes the scum 47 before it towards a fixed baffle 50, means 54 engaging baffle 38 and causing it to pass beneath baffle 50 leaving the scum upstream of baffle 50, whence it is removed by endless conveyor 58 running along baffle 50. As illustrated baffles 38 and 50 extend radially of a circular tank with a central inlet and peripheral overflow for clean liquid, but the invention is applicable to rectangular tanks. Scum is excluded from the clean liquid overflow by annular baffle (24). In Fig. 3, baffle 38 is pulled along behind a conventional tank floor scraper (Fig. 2, not shown) and biassed upwards by springs 44. Scum 47 is carried down the underside of ramp 54 by baffle 38 and then rises between baffle 50 and another fixed baffle 52 which define channel 48 in which conveyor 58 operates. Rails 56 guide baffle 38 under baffles 52 and 50. In Fig. 4 (not shown) baffle 38 has a float (82) in place of springs 44. In Fig. 5 (not shown) there is only one fixed baffle 50 and guide rails (86).
GB5164970A 1969-10-30 1970-10-30 Liquid clarifying apparatus Expired GB1334056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87251769A 1969-10-30 1969-10-30

Publications (1)

Publication Number Publication Date
GB1334056A true GB1334056A (en) 1973-10-17

Family

ID=25359729

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5164970A Expired GB1334056A (en) 1969-10-30 1970-10-30 Liquid clarifying apparatus

Country Status (7)

Country Link
US (1) US3627132A (en)
JP (1) JPS4814224B1 (en)
CA (1) CA942202A (en)
DE (1) DE2053203C3 (en)
FR (1) FR2065589B1 (en)
GB (1) GB1334056A (en)
SE (1) SE370186B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5032132B2 (en) * 1971-12-22 1975-10-17
US3919090A (en) * 1974-09-11 1975-11-11 Ecodyne Corp Surface skimming system
US4364834A (en) * 1981-11-10 1982-12-21 Envirotech Corporation Sedimentation apparatus having an improved skimming mechanism
US4551246A (en) * 1982-09-30 1985-11-05 International Resources Management, Inc. Flotation apparatus utilizing a novel floc barrier and current diverting means
US4462909A (en) * 1983-04-04 1984-07-31 Dorr-Oliver Incorporated Surface skimmer means for settling tank
DE3325342A1 (en) * 1983-07-13 1985-01-24 Passavant-Werke AG & Co KG, 6209 Aarbergen Process and apparatus for the removal of floating sludge
US4751002A (en) * 1987-01-29 1988-06-14 Baker International Corporation Cable supported rake arm thickener
US5200079A (en) * 1990-06-20 1993-04-06 Mcnish Corporation Circular clarifier including improved skimmer clarifier
EP0556431B1 (en) * 1992-02-20 1995-05-03 Dorr-Oliver Incorporated Clarifier basin
US7258788B2 (en) * 2004-03-12 2007-08-21 Noram Engineering And Constructors Ltd. Circular clarifier apparatus and method
US7971732B2 (en) * 2006-11-06 2011-07-05 Smith & Loveless, Inc. Grit trap for waste water system
US20080115804A1 (en) * 2006-11-17 2008-05-22 Hall James I Settling tank wall scraper and method
CN103394417B (en) * 2013-08-13 2015-01-07 天地（唐山）矿业科技有限公司 Transmission froth scraping device at periphery of cylindrical flotation machine
CN115386866B (en) * 2022-08-27 2024-03-01 青岛陇鑫汇航空科技有限公司 New material panel surface impurity treatment facility

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465887A (en) * 1969-01-03 1969-09-09 Dorr Oliver Inc Torsion bar skimmer

Also Published As

Publication number Publication date
CA942202A (en) 1974-02-19
FR2065589A1 (en) 1971-07-30
SE370186B (en) 1974-10-07
US3627132A (en) 1971-12-14
DE2053203A1 (en) 1971-05-19
DE2053203B2 (en) 1978-10-05
JPS4814224B1 (en) 1973-05-04
FR2065589B1 (en) 1974-08-23
DE2053203C3 (en) 1979-05-31

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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