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GB490112A - Combined flocculation and sedimentation apparatus - Google Patents

Combined flocculation and sedimentation apparatus

Info

Publication number
GB490112A
GB490112A GB30162/37A GB3016237A GB490112A GB 490112 A GB490112 A GB 490112A GB 30162/37 A GB30162/37 A GB 30162/37A GB 3016237 A GB3016237 A GB 3016237A GB 490112 A GB490112 A GB 490112A
Authority
GB
United Kingdom
Prior art keywords
flocculation
zone
sedimentation
tank
liquid
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
GB30162/37A
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.)
Dorr Co
Original Assignee
Dorr Co
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 to US20971D priority Critical patent/USRE20971E/en
Priority to US25568A priority patent/US2095923A/en
Application filed by Dorr Co filed Critical Dorr Co
Priority to GB30162/37A priority patent/GB490112A/en
Publication of GB490112A publication Critical patent/GB490112A/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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • 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
    • B01D21/0018—Separation of suspended solid particles from liquids by sedimentation provided with a pump mounted in or on a settling tank
    • 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
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B01D21/08—Settling tanks with single outlets for the separated liquid provided with flocculating compartments
    • 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
    • B01D21/2416—Liquid distributors with a plurality of feed points
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

490,112. Gravity-separation apparatus. TRIGGS, W. W. (Dorr Co., Inc.) Nov. 3, 1937, No. 30162. [Class 111] In the treatment of liquids by flocculation and subsequent sedimentation, the liquid is fed to a zone in which it is subjected to flocculation by gentle mechanical agitation and is then passed into a communicating zone which surrounds or encircles the flocculating zone and in which the solids are separated by sedimentation. In the construction shown, a sedimentation tank 1 is provided with an effluent outlet 7, and a sludgedischarge outlet 24 into which the solids are raked by rotatable mechanism SM. The liquid to be treated enters the tank through a vertical pipe 43, on which is rotatably mounted a structure 28 supporting the mechanism SM. A flocculation zone surrounding the structure 28 is defined by a drum 40, the base of which is formed with apertures 42. The drum is supported by bars 29, the ends of which rest on the wall of the tank 1. The bars also support a motor 30 which drives paddles 47 whereby flocculation is effected. A coagulating chemical for assisting flocculation may be added to the liquid under treatment.
GB30162/37A 1935-06-08 1937-11-03 Combined flocculation and sedimentation apparatus Expired GB490112A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US20971D USRE20971E (en) 1937-11-03 Combined flocculation and sedimen
US25568A US2095923A (en) 1935-06-08 1935-06-08 Combined flocculation and sedimentation apparatus
GB30162/37A GB490112A (en) 1937-11-03 1937-11-03 Combined flocculation and sedimentation apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30162/37A GB490112A (en) 1937-11-03 1937-11-03 Combined flocculation and sedimentation apparatus

Publications (1)

Publication Number Publication Date
GB490112A true GB490112A (en) 1938-08-09

Family

ID=10303270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30162/37A Expired GB490112A (en) 1935-06-08 1937-11-03 Combined flocculation and sedimentation apparatus

Country Status (2)

Country Link
US (1) USRE20971E (en)
GB (1) GB490112A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961249C (en) * 1953-01-30 1957-04-04 Dorr Oliver Inc Continuously working water basin for gritty and non-gritty substances containing waste fluids

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425065A (en) * 1943-07-21 1947-08-05 Dorr Co Method of separating flocculatable and gritty solids from liquids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961249C (en) * 1953-01-30 1957-04-04 Dorr Oliver Inc Continuously working water basin for gritty and non-gritty substances containing waste fluids

Also Published As

Publication number Publication date
USRE20971E (en) 1939-01-10

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