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IE41385B1 - Phosphate stripping of sewage - Google Patents

Phosphate stripping of sewage

Info

Publication number
IE41385B1
IE41385B1 IE1394/75A IE139475A IE41385B1 IE 41385 B1 IE41385 B1 IE 41385B1 IE 1394/75 A IE1394/75 A IE 1394/75A IE 139475 A IE139475 A IE 139475A IE 41385 B1 IE41385 B1 IE 41385B1
Authority
IE
Ireland
Prior art keywords
phosphate
sludge
june
sewage
stripping
Prior art date
Application number
IE1394/75A
Other versions
IE41385L (en
Original Assignee
Union Carbide 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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of IE41385L publication Critical patent/IE41385L/en
Publication of IE41385B1 publication Critical patent/IE41385B1/en

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
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
    • 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)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Removal Of Specific Substances (AREA)
  • Activated Sludge Processes (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

1512693 Phosphate stripping of sewage UNION CARBIDE CORP 20 June 1975 [21 June 1974 4 June 1975] 26229/75 Heading C1C A mixed liquor of phosphate-containing sewage and activated sludge is aerated to reduce the BOD and cause the micro-organisms to take up phosphate. Phosphate-enriched sludge is separated to give a phosphate-free effluent. The enriched sludge is passed to a phosphate stripping zone to give supernatant liquor and settled sludge. At least part of the settled sludge is treated anaerobically to release phosphate, which is extracted by a lower phosphate-containing medium to transfer the soluble phosphate to this medium which is used to enrich the supernatant liquor. At least a portion of the anaerobic sludge is recycled to the aeration zone. [GB1512693A]
IE1394/75A 1974-06-21 1975-06-23 Phosphate stripping of sewage IE41385B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48179374A 1974-06-21 1974-06-21
US58195175A 1975-06-04 1975-06-04

Publications (2)

Publication Number Publication Date
IE41385L IE41385L (en) 1975-12-21
IE41385B1 true IE41385B1 (en) 1979-12-19

Family

ID=27047049

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1394/75A IE41385B1 (en) 1974-06-21 1975-06-23 Phosphate stripping of sewage

Country Status (19)

Country Link
JP (1) JPS5929320B2 (en)
AR (1) AR206820A1 (en)
BR (1) BR7503861A (en)
CA (1) CA1063264A (en)
CH (1) CH609652A5 (en)
DE (1) DE2527588C2 (en)
DK (1) DK281875A (en)
EG (1) EG11772A (en)
FI (1) FI62275C (en)
FR (1) FR2275408A1 (en)
GB (1) GB1512693A (en)
IE (1) IE41385B1 (en)
IL (1) IL47536A (en)
IN (1) IN144405B (en)
IT (1) IT1040676B (en)
NL (1) NL171568C (en)
NO (1) NO148260C (en)
SE (1) SE410306B (en)
TR (1) TR18849A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729127A1 (en) * 1987-09-01 1989-03-09 Taetzner Wolfgang Process and apparatus for biologically purifying waste waters of their phosphate impurities

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3236766A (en) * 1964-03-31 1966-02-22 Hazleton Lab Inc Sewage treatment process
US3385785A (en) * 1966-05-04 1968-05-28 Fmc Corp Method of controlling phosphate concentration in sewage treatment systems
US3681235A (en) * 1971-03-11 1972-08-01 Biospherics Inc Internal precipitation of phosphate from activated sludge

Also Published As

Publication number Publication date
IL47536A0 (en) 1975-08-31
NL171568C (en) 1983-04-18
IT1040676B (en) 1979-12-20
FI62275B (en) 1982-08-31
IE41385L (en) 1975-12-21
IN144405B (en) 1978-04-29
TR18849A (en) 1977-11-01
EG11772A (en) 1977-10-31
NL7507418A (en) 1975-12-23
DE2527588A1 (en) 1976-01-15
CH609652A5 (en) 1979-03-15
NO148260B (en) 1983-05-30
NO148260C (en) 1983-09-07
DK281875A (en) 1975-12-22
NO752207L (en) 1975-12-23
FR2275408B1 (en) 1982-07-16
DE2527588C2 (en) 1985-09-19
FI751833A7 (en) 1975-12-22
AR206820A1 (en) 1976-08-23
FR2275408A1 (en) 1976-01-16
CA1063264A (en) 1979-09-25
SE7507013L (en) 1975-12-22
JPS5114757A (en) 1976-02-05
AU8232675A (en) 1976-12-23
GB1512693A (en) 1978-06-01
IL47536A (en) 1978-07-31
FI62275C (en) 1982-12-10
SE410306B (en) 1979-10-08
NL171568B (en) 1982-11-16
JPS5929320B2 (en) 1984-07-19
BR7503861A (en) 1976-07-06

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