GB192561A - Improvements in sewage purification plant and apparatus connected therewith - Google Patents

Improvements in sewage purification plant and apparatus connected therewith

Info

Publication number
GB192561A
GB192561A GB3480621A GB3480621A GB192561A GB 192561 A GB192561 A GB 192561A GB 3480621 A GB3480621 A GB 3480621A GB 3480621 A GB3480621 A GB 3480621A GB 192561 A GB192561 A GB 192561A
Authority
GB
United Kingdom
Prior art keywords
tank
pipe
chamber
sludge
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
GB3480621A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3480621A priority Critical patent/GB192561A/en
Publication of GB192561A publication Critical patent/GB192561A/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
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23121—Diffusers having injection means, e.g. nozzles with circumferential outlet
    • 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
    • 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
    • C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
    • 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
    • C02F3/24—Activated sludge processes using free-fall aeration or spraying
    • 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

Landscapes

  • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

192,561. Adams, S. H. Dec. 28, 1921. Aerating; plant.-Automatic dosing tanks, preferably siphonic, are used for supplying sewage to activated-sludge aerating-tanks and for agitating or otherwise aerating the liquid therein. In the apparatus shown in Fig. 2, a siphon e in a dosing-tank d delivers liquid through a chamber f, pipe l and nozzle m into an aerating-tank o. The contents of the tank o are thereby caused to circulate through a funnel-shaped pipe n arranged over the nozzle m. Liquid passes from the tank o under a scum-board o<1> and over a sill o<2> into a chamber t. Discharge of the chamber t through a pipe q is controlled by a siphon air-lock j, which is connected by a pipe h to a dome g in the chamber f, air being released from the lock when liquid has been drained from the chamber f through a pipe k. Sludge can be discharged from the tank o to the chamber t through a valved pipe r. In a modified form of this apparatus, the pipe n is omitted and a plurality of smaller nozzles take the place of the central nozzle m. In the form of apparatus shown in Fig. 4, the pipe l delivers the liquid into the head v of a rotary distributor having perforated arms y. The shaft of the distributor is continued downwards and provided with stirring arms z. Fig. 6 shows the application of a dosing. tank 1 with siphon 2 to a long rectangular aerating tank 4, 5. The main supply pipe 3, into which the siphon discharges, has perforated branches 6 - - 11, arranged near the floor of the tank so that the jets therefrom promote the flow of the liquid through the tank and lift the sludge into the current. A sludge basin 16 is formed at the end of the tank and the sludge is withdrawn therefrom through a pipe 12 to a chamber 14 when liquid is discharged from the chamber 14 by a siphon 15. Reference is made to the use of travelling distributors for delivering liquid to rectangular aerating-tanks and to the use of the power of a distributor for operating a pump to lift sludge from a settling tank. It is also stated that the pressure of air within a dome may be used to agitate sludge or to force sludge at intervals from a setting-tank to the aerating- tanks.
GB3480621A 1921-12-28 1921-12-28 Improvements in sewage purification plant and apparatus connected therewith Expired GB192561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3480621A GB192561A (en) 1921-12-28 1921-12-28 Improvements in sewage purification plant and apparatus connected therewith

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3480621A GB192561A (en) 1921-12-28 1921-12-28 Improvements in sewage purification plant and apparatus connected therewith

Publications (1)

Publication Number Publication Date
GB192561A true GB192561A (en) 1923-02-08

Family

ID=10370147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3480621A Expired GB192561A (en) 1921-12-28 1921-12-28 Improvements in sewage purification plant and apparatus connected therewith

Country Status (1)

Country Link
GB (1) GB192561A (en)

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