GB1372367A - Method for the purification of sewage - Google Patents

Method for the purification of sewage

Info

Publication number
GB1372367A
GB1372367A GB4603271A GB4603271A GB1372367A GB 1372367 A GB1372367 A GB 1372367A GB 4603271 A GB4603271 A GB 4603271A GB 4603271 A GB4603271 A GB 4603271A GB 1372367 A GB1372367 A GB 1372367A
Authority
GB
United Kingdom
Prior art keywords
sewage
tanks
aeration
activated sludge
sludge
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
GB4603271A
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.)
NETHERLANDS ORGANISATION FOR A
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
Original Assignee
NETHERLANDS ORGANISATION FOR A
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
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 NETHERLANDS ORGANISATION FOR A, Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO filed Critical NETHERLANDS ORGANISATION FOR A
Publication of GB1372367A publication Critical patent/GB1372367A/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
    • C02F3/1263—Sequencing batch reactors [SBR]
    • 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
    • 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
    • C02F3/30—Aerobic and anaerobic processes
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Activated Sludge Processes (AREA)

Abstract

1372367 Activated sludge process and apparatus NETHERLANDS ORGANISATION FOR APPLIED SCIENTIFIC RESEARCH ON BEHALF OF PUBLIC HEALTH 4 Oct 1971 [5 Oct 1970] 46032/71 Heading C1C In an activated sludge process sewage is fed into an aeration zone, mixed therein with activated sludge, and aerated for 3-12 times as long as the mixing period, and effluent is discharged to a settling zone from which sludge is returned to the aeration zone. The mean residue time of the sewage in the aeration zone is at least one day. In the process mixing takes place during the feeding-in period, discharging takes place during the aeration period, and aerating may take place during the feeding-in period. Iron salts may be added to the sewage or activated sludge mixture to aid in phosphate removal from the sewage. The process removes 90% or more of the nitrogen in the sewage. A suitable apparatus comprises four aeration tanks 1-4 (3-8 aeration tanks may be used) connected in parallel, settling tank 17, rotating means 5 for supplying sewage and activated sludge to the tanks 1-4 in turn, and valves (e.g. sliding) 10-14 for allowing discharge of liquid from tanks 1-4 in turn. The means 5 comprises two concentric compartments 21, 22 which receive sewage and sludge respectively and discharge it through openings 23, 24 respectively. Sewage is fed into one tank while sludge is fed into an adjacent tank. The apparatus comprises sieving device 29 and may comprise means for regulating the rate of discharge from the tanks 1-4, e.g. electrodes, time switches or level sensing means. The aerators 6-9 are preferably floating aerators with a vertical shaft. Below the aerators telescopic tubular arrangements may be provided to aid in the circulation of liquid in the tanks 1-4.
GB4603271A 1970-10-05 1971-10-04 Method for the purification of sewage Expired GB1372367A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7014621A NL7014621A (en) 1970-10-05 1970-10-05

Publications (1)

Publication Number Publication Date
GB1372367A true GB1372367A (en) 1974-10-30

Family

ID=19811231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4603271A Expired GB1372367A (en) 1970-10-05 1971-10-04 Method for the purification of sewage

Country Status (10)

Country Link
AT (1) AT310688B (en)
BE (1) BE773449A (en)
BR (1) BR7106612D0 (en)
CA (1) CA956733A (en)
CH (1) CH544038A (en)
DE (1) DE2149552A1 (en)
FR (1) FR2123256B1 (en)
GB (1) GB1372367A (en)
NL (1) NL7014621A (en)
SE (1) SE382807B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008471A1 (en) * 1978-08-18 1980-03-05 Stamicarbon B.V. Process for the nitrification and denitrification of waste water
CN108338108A (en) * 2018-03-26 2018-07-31 阮保国 Purifying water process environment-protecting cultivation net cage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710325A1 (en) * 1987-03-28 1988-10-13 Kernforschungsanlage Juelich WASTEWATER CLEANING METHOD WITH A PUBLIC WASTEWATER SUPPLY TO THE AERATIONAL POOL
BE1006765A5 (en) * 1990-05-31 1994-12-06 Forschungszentrum Juelich Gmbh Residual water purification device using the activated sludge method and,notably with denitrification

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008471A1 (en) * 1978-08-18 1980-03-05 Stamicarbon B.V. Process for the nitrification and denitrification of waste water
CN108338108A (en) * 2018-03-26 2018-07-31 阮保国 Purifying water process environment-protecting cultivation net cage
CN108338108B (en) * 2018-03-26 2024-02-09 阮保国 Environment-friendly aquaculture net cage for water purification treatment

Also Published As

Publication number Publication date
CH544038A (en) 1973-11-15
AT310688B (en) 1973-10-10
NL7014621A (en) 1972-04-07
CA956733A (en) 1974-10-22
BR7106612D0 (en) 1973-05-31
BE773449A (en) 1972-04-04
FR2123256B1 (en) 1979-08-17
DE2149552A1 (en) 1972-04-06
FR2123256A1 (en) 1972-09-08
SE382807B (en) 1976-02-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee