IT1170498B - PROCEDURE TO ELIMINATE OR PREVENT THE BLOCKING OF BOTTOM AERATORS IN THE TREATMENT OF WATERS AND DISCHARGES - Google Patents

PROCEDURE TO ELIMINATE OR PREVENT THE BLOCKING OF BOTTOM AERATORS IN THE TREATMENT OF WATERS AND DISCHARGES

Info

Publication number
IT1170498B
IT1170498B IT4898183A IT4898183A IT1170498B IT 1170498 B IT1170498 B IT 1170498B IT 4898183 A IT4898183 A IT 4898183A IT 4898183 A IT4898183 A IT 4898183A IT 1170498 B IT1170498 B IT 1170498B
Authority
IT
Italy
Prior art keywords
waters
discharges
eliminate
blocking
procedure
Prior art date
Application number
IT4898183A
Other languages
Italian (it)
Other versions
IT8348981A0 (en
Inventor
Ulrich 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 IT8348981A0 publication Critical patent/IT8348981A0/en
Application granted granted Critical
Publication of IT1170498B publication Critical patent/IT1170498B/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)
  • Biological Treatment Of Waste Water (AREA)
  • Activated Sludge Processes (AREA)
  • Physical Water Treatments (AREA)
IT4898183A 1982-09-16 1983-09-15 PROCEDURE TO ELIMINATE OR PREVENT THE BLOCKING OF BOTTOM AERATORS IN THE TREATMENT OF WATERS AND DISCHARGES IT1170498B (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
IT8348981A0 IT8348981A0 (en) 1983-09-15
IT1170498B true IT1170498B (en) 1987-06-03

Family

ID=4294516

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4898183A IT1170498B (en) 1982-09-16 1983-09-15 PROCEDURE TO ELIMINATE OR PREVENT THE BLOCKING OF BOTTOM AERATORS IN THE TREATMENT OF WATERS AND DISCHARGES

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
EP0047956B1 (en) * 1980-09-11 1985-01-02 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
CA1203328A (en) 1986-04-15
FI833316A0 (en) 1983-09-16
GB2130570B (en) 1986-09-17
CH658044A5 (en) 1986-10-15
AT392061B (en) 1991-01-25
FI76061C (en) 1989-05-30
FI76061B (en) 1988-05-31
GB8324649D0 (en) 1983-10-19
CS248709B2 (en) 1987-02-12
DE3333602A1 (en) 1984-03-22
FI833316A (en) 1984-03-17
SE8304939D0 (en) 1983-09-14
FR2533207A1 (en) 1984-03-23
IT8348981A0 (en) 1983-09-15
GB2130570A (en) 1984-06-06
SE8304939L (en) 1984-03-17
FR2533207B1 (en) 1986-09-19
ATA331083A (en) 1990-07-15
DE3333602C2 (en) 1991-06-06

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950926