[go: up one dir, main page]

SE8304939L - WANT TO PREVENT BLOCKING OF AIR - Google Patents

WANT TO PREVENT BLOCKING OF AIR

Info

Publication number
SE8304939L
SE8304939L SE8304939A SE8304939A SE8304939L SE 8304939 L SE8304939 L SE 8304939L SE 8304939 A SE8304939 A SE 8304939A SE 8304939 A SE8304939 A SE 8304939A SE 8304939 L SE8304939 L SE 8304939L
Authority
SE
Sweden
Prior art keywords
want
air
aerators
prevent blocking
sewage
Prior art date
Application number
SE8304939A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8304939D0 (en
Inventor
U Bretscher
Original Assignee
Nokia Oy Ab
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 Nokia Oy Ab filed Critical Nokia Oy Ab
Publication of SE8304939D0 publication Critical patent/SE8304939D0/en
Publication of SE8304939L publication Critical patent/SE8304939L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • 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
    • C02F3/20—Activated sludge processes using diffusers
    • 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)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Treating Waste Gases (AREA)
  • Physical Water Treatments (AREA)
  • Activated Sludge Processes (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

Blockages in bottom aerators in the treatment of water and sewage are eliminated or prevented under operating conditions by introducing formic acid into the gas fed into the aerators without taking the aerators out of operation. The acid converts the blocking material at least partly into a form which is soluble in the water or sewage to be treated.
SE8304939A 1982-09-16 1983-09-14 WANT TO PREVENT BLOCKING OF AIR SE8304939L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH5493/82A CH658044A5 (en) 1982-09-16 1982-09-16 METHOD FOR REMOVAL OR PREVENTING CLOGS IN DEEP AERATORS IN WATER TREATMENT AND WATER TREATMENT UNDER OPERATING CONDITIONS.

Publications (2)

Publication Number Publication Date
SE8304939D0 SE8304939D0 (en) 1983-09-14
SE8304939L true SE8304939L (en) 1984-03-17

Family

ID=4294516

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8304939A SE8304939L (en) 1982-09-16 1983-09-14 WANT TO PREVENT BLOCKING OF AIR

Country Status (10)

Country Link
AT (1) AT392061B (en)
CA (1) CA1203328A (en)
CH (1) CH658044A5 (en)
CS (1) CS248709B2 (en)
DE (1) DE3333602A1 (en)
FI (1) FI76061C (en)
FR (1) FR2533207B1 (en)
GB (1) GB2130570B (en)
IT (1) IT1170498B (en)
SE (1) SE8304939L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545194A1 (en) * 1985-12-20 1987-07-02 Sennheiser Electronic Opto-electronic transceiver
US5140203A (en) * 1988-09-27 1992-08-18 Mannesmann Rexroth Gmbh Control motor for a servo-valve
DE19952135A1 (en) * 1999-10-29 2001-06-13 Messer Griesheim Gmbh Waste water treatment process
AT411359B (en) * 2002-01-17 2003-12-29 Frey Wilhelm CLEANING PROCEDURE AND CLEANING LIQUID FOR FAN BODY
CN115417492B (en) * 2022-08-30 2023-06-20 同济大学建筑设计研究院(集团)有限公司 Advanced oxidation system based on underwater vision and control method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686138A (en) * 1951-09-15 1954-08-10 Chicago Pump Co Method for cleaning diffuser plates
GB1281334A (en) * 1968-08-01 1972-07-12 British Steel Corp Biological purification of coke oven effluent
US4199469A (en) * 1978-06-21 1980-04-22 Feldmann Chemie Composition and method for cleaning drinking water tanks
FR2469450A1 (en) * 1979-11-12 1981-05-22 Solitaire Produits Entretien F Aq. aerosol descaling and cleaning compsn. - contg. organic acid, surfactant, gelling agent and hygroscopic agent
DE3168048D1 (en) * 1980-09-11 1985-02-14 Sterling Drug Inc Removal of scale from porous diffusion tiles
US4382867A (en) * 1980-09-29 1983-05-10 Water Pollution Control Corp In place gas cleaning of diffusion elements

Also Published As

Publication number Publication date
DE3333602C2 (en) 1991-06-06
GB2130570B (en) 1986-09-17
DE3333602A1 (en) 1984-03-22
IT8348981A0 (en) 1983-09-15
FR2533207A1 (en) 1984-03-23
CH658044A5 (en) 1986-10-15
SE8304939D0 (en) 1983-09-14
IT1170498B (en) 1987-06-03
GB8324649D0 (en) 1983-10-19
CS248709B2 (en) 1987-02-12
ATA331083A (en) 1990-07-15
CA1203328A (en) 1986-04-15
FI833316A0 (en) 1983-09-16
FI76061B (en) 1988-05-31
FI833316A (en) 1984-03-17
AT392061B (en) 1991-01-25
FI76061C (en) 1989-05-30
FR2533207B1 (en) 1986-09-19
GB2130570A (en) 1984-06-06

Similar Documents

Publication Publication Date Title
SE8304939D0 (en) WANT TO PREVENT BLOCKING OF AIR
BE826732A (en) PROCESS AND PLANT FOR BIOLOGICAL WASTE WATER TREATMENT
JPS5412150A (en) Flow bed type filthy water treating device
JPS5223851A (en) Drainage disposal process
JPS5222367A (en) Treating equipment of waste water containing organic mater rising unde r pressure
JPS51139173A (en) Activated sludge treatment
ES2033264T3 (en) PROCEDURE FOR THE TREATMENT OF WASTE WATER.
JPS5547199A (en) High grade treatment of organic waste water
JPS52123976A (en) Treatment of waste water
JPS52153876A (en) Removal of malodorous components
JPS51117444A (en) Waste water aeration device
JPS51135175A (en) Method of treating waste water
JPS5334357A (en) Waste water treating process utilizing float-up separation
JPS51115051A (en) Novel waste water treating method
JPS5763193A (en) Sewage treatment device
JPS5230781A (en) Treating method of sewage sludge
JPS57197081A (en) Treatment of waste water
JPS52154256A (en) Process and apparatus of treating waste water
JPS5370546A (en) Method of treating waste water duffused from solid waste
JPS52110275A (en) Treatment of solution separated by heat-treatment of sludge
JPS5262A (en) Method of treating pulp waste water
JPS5230056A (en) Waste water treatment method
JPS5426061A (en) Apparatus for purifying and treating sanitary sewage
JPS5290465A (en) Treatment of waste water
JPS52138762A (en) Auxiliary filter material

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8304939-5