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ES8305283A1 - Biological waste water treating method - Google Patents

Biological waste water treating method

Info

Publication number
ES8305283A1
ES8305283A1 ES513898A ES513898A ES8305283A1 ES 8305283 A1 ES8305283 A1 ES 8305283A1 ES 513898 A ES513898 A ES 513898A ES 513898 A ES513898 A ES 513898A ES 8305283 A1 ES8305283 A1 ES 8305283A1
Authority
ES
Spain
Prior art keywords
bod
oxidised
waste water
influent
activated
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
ES513898A
Other languages
Spanish (es)
Other versions
ES513898A0 (en
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.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of ES513898A0 publication Critical patent/ES513898A0/en
Publication of ES8305283A1 publication Critical patent/ES8305283A1/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
    • 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)
  • Activated Sludge Processes (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

In an activated sludge system, activated biomass is mixed with BOD-contg. waste water influent in a BOD sorption zone to produce a mixed liquor with less than 5% of the total BOD5 oxidised. The BOD contained in the mixed liquor is subsequently oxidised in an oxidation zone under controlled aeration conditions such that at least 30% of total influent BOD5 is oxidised. The oxidised mixed liquor is settled to separate supernatant liquor from the more dense sludge including biomass. A portion of the sludge is recycled to provide activated biomass in the initial BOD sorption zone. Used for treatment of municipal sewage and industrial waste water by the activated sludge process. Operation of the system at high influent throughput rate minimises the external O2 requirement for BOD removal.
ES513898A 1981-07-13 1982-07-12 Biological waste water treating method Expired ES8305283A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28267481A 1981-07-13 1981-07-13

Publications (2)

Publication Number Publication Date
ES513898A0 ES513898A0 (en) 1983-04-01
ES8305283A1 true ES8305283A1 (en) 1983-04-01

Family

ID=23082611

Family Applications (1)

Application Number Title Priority Date Filing Date
ES513898A Expired ES8305283A1 (en) 1981-07-13 1982-07-12 Biological waste water treating method

Country Status (12)

Country Link
JP (1) JPS5817894A (en)
KR (1) KR840000437A (en)
AU (1) AU543212B2 (en)
DK (1) DK169737B1 (en)
ES (1) ES8305283A1 (en)
FI (1) FI77215C (en)
GR (1) GR78324B (en)
IN (1) IN157778B (en)
NO (1) NO822413L (en)
NZ (1) NZ201232A (en)
PT (1) PT75232B (en)
ZA (1) ZA824972B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8201293A (en) * 1982-03-29 1983-10-17 Gist Brocades Nv FLUID BED REACTOR FOR PURIFICATION OF WASTE WATER.
AUPM452094A0 (en) * 1994-03-17 1994-04-14 University Of Queensland, The Waste treatment plant and process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48104351A (en) * 1972-04-14 1973-12-27
JPS52111267A (en) * 1976-03-16 1977-09-17 Chiyuuetsu Koubo Kougiyou Kk Method of treating waste water

Also Published As

Publication number Publication date
GR78324B (en) 1984-09-26
ES513898A0 (en) 1983-04-01
FI822489L (en) 1983-01-14
JPS5817894A (en) 1983-02-02
AU8568782A (en) 1983-01-20
NO822413L (en) 1983-01-14
JPH0134118B2 (en) 1989-07-18
NZ201232A (en) 1984-07-06
PT75232B (en) 1984-07-23
DK309682A (en) 1983-01-14
FI77215B (en) 1988-10-31
IN157778B (en) 1986-06-14
PT75232A (en) 1982-08-01
KR840000437A (en) 1984-02-22
FI77215C (en) 1989-02-10
AU543212B2 (en) 1985-04-04
FI822489A0 (en) 1982-07-13
ZA824972B (en) 1983-04-27
DK169737B1 (en) 1995-02-06

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