FR2439749A1 - Treating polluted water by aeration and filtration - with control of water and oxygen flow rates - Google Patents

Treating polluted water by aeration and filtration - with control of water and oxygen flow rates

Info

Publication number
FR2439749A1
FR2439749A1 FR7830282A FR7830282A FR2439749A1 FR 2439749 A1 FR2439749 A1 FR 2439749A1 FR 7830282 A FR7830282 A FR 7830282A FR 7830282 A FR7830282 A FR 7830282A FR 2439749 A1 FR2439749 A1 FR 2439749A1
Authority
FR
France
Prior art keywords
water
gas
bed
flow rates
vol
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.)
Granted
Application number
FR7830282A
Other languages
French (fr)
Other versions
FR2439749B1 (en
Inventor
Luigi Verde
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.)
OMNIUM ASSAINISSEMENT
Original Assignee
OMNIUM ASSAINISSEMENT
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 OMNIUM ASSAINISSEMENT filed Critical OMNIUM ASSAINISSEMENT
Priority to FR7830282A priority Critical patent/FR2439749A1/en
Priority to EP19790400700 priority patent/EP0010473B1/en
Priority to DE7979400700T priority patent/DE2964156D1/en
Priority to JP13127079A priority patent/JPS5559890A/en
Priority to BR7906838A priority patent/BR7906838A/en
Priority to AU52076/79A priority patent/AU528760B2/en
Priority to CA338,307A priority patent/CA1131812A/en
Publication of FR2439749A1 publication Critical patent/FR2439749A1/en
Application granted granted Critical
Publication of FR2439749B1 publication Critical patent/FR2439749B1/fr
Granted 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
    • C02F3/10—Packings; Fillings; Grids
    • 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
    • C02F3/04—Aerobic processes using trickle filters
    • 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
    • C02F3/26—Activated sludge processes using pure oxygen or oxygen-rich gas
    • 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

Abstract

Water purifcn. comprises percolating the water downwards through a submerged, fixed bed of granular filtration material while introducing O2-contg. gas at an intermediate level in the bed. The flow rates for gas and water obey the equations: (Q1 and Q2 = flow rates of gas and water in cu.m./hr; epsilon = porosity of the bed material; alpha = max. fraction of the vol. which can be occupied by gas without affecting efficiency; S = area (m2) and h = height (m) of the bed; V = vertical component of mean velocity of rising gas bubbles; K1 = vol. of bed occupied by immobilised gas bubbles (cu.m); K2 = O2 concn. in the gas (kg/cu.m); K2 = O2 demand of 1 cu.m of carbon in 1 hr. under process conditions (kg/cu.m./hr); R = overall transfer yield (wt. O2 effectively dissolved divided by O2 injected); DO = O2 demand in kg per unit vol. of water treated). The process is for treating surface water etc. to make it drinkable, or for processing sewage and industrial wastes.
FR7830282A 1978-10-25 1978-10-25 Treating polluted water by aeration and filtration - with control of water and oxygen flow rates Granted FR2439749A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7830282A FR2439749A1 (en) 1978-10-25 1978-10-25 Treating polluted water by aeration and filtration - with control of water and oxygen flow rates
EP19790400700 EP0010473B1 (en) 1978-10-25 1979-10-03 Process for water purification
DE7979400700T DE2964156D1 (en) 1978-10-25 1979-10-03 Process for water purification
JP13127079A JPS5559890A (en) 1978-10-25 1979-10-11 Method of refining polluted water
BR7906838A BR7906838A (en) 1978-10-25 1979-10-23 WATER PURIFICATION PROCESS
AU52076/79A AU528760B2 (en) 1978-10-25 1979-10-23 Process of water purification
CA338,307A CA1131812A (en) 1978-10-25 1979-10-24 Water purification process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7830282A FR2439749A1 (en) 1978-10-25 1978-10-25 Treating polluted water by aeration and filtration - with control of water and oxygen flow rates

Publications (2)

Publication Number Publication Date
FR2439749A1 true FR2439749A1 (en) 1980-05-23
FR2439749B1 FR2439749B1 (en) 1983-02-18

Family

ID=9214126

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7830282A Granted FR2439749A1 (en) 1978-10-25 1978-10-25 Treating polluted water by aeration and filtration - with control of water and oxygen flow rates

Country Status (5)

Country Link
JP (1) JPS5559890A (en)
AU (1) AU528760B2 (en)
BR (1) BR7906838A (en)
CA (1) CA1131812A (en)
FR (1) FR2439749A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2508488A1 (en) 2011-04-04 2012-10-10 Veolia Water Solutions & Technologies Support Improved biological waste water purification reactor and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5824391A (en) * 1981-08-05 1983-02-14 Ebara Infilco Co Ltd Biological filtration method
US5620891A (en) * 1991-03-08 1997-04-15 Memtec Limited Biological reaction processes
JP2000185293A (en) 1998-12-22 2000-07-04 Sumitomo Heavy Ind Ltd Biological filter apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR333406A (en) * 1903-06-26 1903-11-25 Ferdinand Eichen Sewage treatment process
FR396710A (en) * 1908-11-25 1909-04-19 Louis Alfred Gaultier Improvements in apparatus for oxidizing or nitrifying liquids
FR2109970A6 (en) * 1969-03-26 1972-05-26 Adsorptionstech Lab Sterilised drinking water prodn - using activated carbon filters, chlorine, oxygen and ozone
US3730881A (en) * 1964-04-23 1973-05-01 E Armstrong Waste water treatment system
GB1415437A (en) * 1973-06-14 1975-11-26 Boc International Ltd Treatment of filters used in the purification of waste water
DE2530722A1 (en) * 1975-07-10 1977-01-13 Mueller Wolf Ruediger Nitrification and manganese and iron removal from waters - by hydrogen peroxide addn. in water treatment processes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR333406A (en) * 1903-06-26 1903-11-25 Ferdinand Eichen Sewage treatment process
FR396710A (en) * 1908-11-25 1909-04-19 Louis Alfred Gaultier Improvements in apparatus for oxidizing or nitrifying liquids
US3730881A (en) * 1964-04-23 1973-05-01 E Armstrong Waste water treatment system
FR2109970A6 (en) * 1969-03-26 1972-05-26 Adsorptionstech Lab Sterilised drinking water prodn - using activated carbon filters, chlorine, oxygen and ozone
GB1415437A (en) * 1973-06-14 1975-11-26 Boc International Ltd Treatment of filters used in the purification of waste water
DE2530722A1 (en) * 1975-07-10 1977-01-13 Mueller Wolf Ruediger Nitrification and manganese and iron removal from waters - by hydrogen peroxide addn. in water treatment processes

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXRV/68 *
EXRV/77 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2508488A1 (en) 2011-04-04 2012-10-10 Veolia Water Solutions & Technologies Support Improved biological waste water purification reactor and method
WO2012136654A1 (en) 2011-04-04 2012-10-11 Veolia Water Solutions & Technologies Support Improved biological waste water purification reactor and method

Also Published As

Publication number Publication date
AU528760B2 (en) 1983-05-12
AU5207679A (en) 1980-05-01
BR7906838A (en) 1980-06-24
CA1131812A (en) 1982-09-14
JPS5559890A (en) 1980-05-06
JPS5737399B2 (en) 1982-08-09
FR2439749B1 (en) 1983-02-18

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