GB1148795A - Degritting installation - Google Patents

Degritting installation

Info

Publication number
GB1148795A
GB1148795A GB25814/67A GB2581467A GB1148795A GB 1148795 A GB1148795 A GB 1148795A GB 25814/67 A GB25814/67 A GB 25814/67A GB 2581467 A GB2581467 A GB 2581467A GB 1148795 A GB1148795 A GB 1148795A
Authority
GB
United Kingdom
Prior art keywords
organic material
mixing device
grit
sand
paddles
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
GB25814/67A
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.)
Jones and Attwood Ltd
Original Assignee
Jones and Attwood 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
Priority claimed from CH1660466A external-priority patent/CH450301A/en
Application filed by Jones and Attwood Ltd filed Critical Jones and Attwood Ltd
Publication of GB1148795A publication Critical patent/GB1148795A/en
Expired legal-status Critical Current

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
    • B01D21/02—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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

1,148,795. Solids/liquid gravity separator. Wet separation. Agitating liquids. JONES & ATTWOOD Ltd. 5 June, 1967 [18 Nov., 19661, No. 25814/67. Headings B1C, BID and B2H. A degritting installation suitable for separating grit and sand from organic material and water comprises a tank 1, a raw water inlet 5, a water/organic material outlet 7, a grit or sand collecting pit 3, a pump for removing grit or sand from pit 3 comprising a suction tube 8 and a pipe 9 feeding compressed air, and a mixing device comprising paddles 14 carried on a rotatable hollow shaft 13 mounted concentrically on tube 8 such that the lower ends of paddles 14 are disposed below the lowest part of outlet 7 when the mixing device is stationary. The cross-sectional area of each paddle 14 may decrease towards the lower end of the paddle. In the embodiment of Fig. 3, means 25 may be a chain, an elastic blade, a cable or a bar, to enable the blades 14 to extend rearwardly with respect to the direction of rotation. The mixing device causes the organic material to remain in suspension.
GB25814/67A 1966-11-18 1967-06-05 Degritting installation Expired GB1148795A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1660466A CH450301A (en) 1966-11-18 1966-11-18 Sand removal installation
FR103253A FR1519392A (en) 1966-11-18 1967-04-19 Sand removal installation

Publications (1)

Publication Number Publication Date
GB1148795A true GB1148795A (en) 1969-04-16

Family

ID=25718224

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25814/67A Expired GB1148795A (en) 1966-11-18 1967-06-05 Degritting installation

Country Status (2)

Country Link
FR (1) FR1519392A (en)
GB (1) GB1148795A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010063107A1 (en) * 2008-12-01 2010-06-10 Otv Sa - France Method and apparatus for sewage grit removal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010063107A1 (en) * 2008-12-01 2010-06-10 Otv Sa - France Method and apparatus for sewage grit removal
US8715511B2 (en) 2008-12-01 2014-05-06 Veolia Water Solutions & Technologies Support Method and apparatus for sewage grit removal

Also Published As

Publication number Publication date
FR1519392A (en) 1968-03-29

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