SE7708254L - TREATMENT OF AQUATIC SLUDGE - Google Patents

TREATMENT OF AQUATIC SLUDGE

Info

Publication number
SE7708254L
SE7708254L SE7708254A SE7708254A SE7708254L SE 7708254 L SE7708254 L SE 7708254L SE 7708254 A SE7708254 A SE 7708254A SE 7708254 A SE7708254 A SE 7708254A SE 7708254 L SE7708254 L SE 7708254L
Authority
SE
Sweden
Prior art keywords
sludge
treatment
sludges
jets
aquatic
Prior art date
Application number
SE7708254A
Other languages
Swedish (sv)
Inventor
H G Gunson
Original Assignee
Welsh Nat Water Dev
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 Welsh Nat Water Dev filed Critical Welsh Nat Water Dev
Publication of SE7708254L publication Critical patent/SE7708254L/en

Links

Classifications

    • 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
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • 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
    • C02F3/1278—Provisions for mixing or aeration of the mixed liquor
    • C02F3/1294—"Venturi" aeration means
    • 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
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
    • B01F25/211—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers the injectors being surrounded by guiding tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • 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
    • 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
    • Y02W10/20—Sludge processing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • 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)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Fertilizers (AREA)

Abstract

TREATMENT OF AQUEOUS SLUDGES Aerobically digestible sludges such as water treatment sludges are subjected to aerobic digestion in a vessel wherein agitation of the sludge is effected using submerged jets of the sludge. The oxygen may advantageously be introduced into the digesting sludge in admixture with the sludge jets, and thus very effectively be distributed throughout the sludge in the vessel. Apparatus for carrying out the process includes means for producing submerged jets of sludge and, in a preferred embodiment, submerged jets of a mixture of sludge and oxygen.
SE7708254A 1976-07-16 1977-07-15 TREATMENT OF AQUATIC SLUDGE SE7708254L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29785/76A GB1587718A (en) 1976-07-16 1976-07-16 Treatment of aqueous sludges

Publications (1)

Publication Number Publication Date
SE7708254L true SE7708254L (en) 1978-01-17

Family

ID=10297131

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7708254A SE7708254L (en) 1976-07-16 1977-07-15 TREATMENT OF AQUATIC SLUDGE

Country Status (10)

Country Link
JP (1) JPS54109243A (en)
AU (1) AU513489B2 (en)
CA (1) CA1085976A (en)
DE (1) DE2731918A1 (en)
FR (1) FR2358363A1 (en)
GB (1) GB1587718A (en)
NL (1) NL7707907A (en)
NZ (1) NZ184618A (en)
SE (1) SE7708254L (en)
ZA (1) ZA774162B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398025A1 (en) * 1977-07-19 1979-02-16 Blum Albert Submersible aerator for fluids e.g. sewage - with pump and blower driven at adjustable speed ratio
GB2145344B (en) * 1983-08-24 1987-12-02 Butterworth System Inc Agitating settled sludge in a storage tank
CN111533391B (en) * 2020-05-21 2022-05-31 杭州泽灿环境科技有限公司 Garbage filter pressing liquid treatment system and method

Also Published As

Publication number Publication date
JPS54109243A (en) 1979-08-27
GB1587718A (en) 1981-04-08
FR2358363A1 (en) 1978-02-10
NL7707907A (en) 1978-01-18
AU513489B2 (en) 1980-12-04
NZ184618A (en) 1979-12-11
CA1085976A (en) 1980-09-16
FR2358363B3 (en) 1980-07-11
ZA774162B (en) 1978-05-30
DE2731918A1 (en) 1978-01-19
AU2698477A (en) 1979-01-18

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NAV Patent application has lapsed

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