FR2299637A1 - Continuous control process for flocculation plant - using turbidimeter with a rotary polarising filter - Google Patents

Continuous control process for flocculation plant - using turbidimeter with a rotary polarising filter

Info

Publication number
FR2299637A1
FR2299637A1 FR7502521A FR7502521A FR2299637A1 FR 2299637 A1 FR2299637 A1 FR 2299637A1 FR 7502521 A FR7502521 A FR 7502521A FR 7502521 A FR7502521 A FR 7502521A FR 2299637 A1 FR2299637 A1 FR 2299637A1
Authority
FR
France
Prior art keywords
flocculation
flocculant
turbidimeter
liq
treatment
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
FR7502521A
Other languages
French (fr)
Other versions
FR2299637B1 (en
Inventor
Jacques Sibony
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.)
TRAITEMENT EAUX CIE EUROP
Original Assignee
TRAITEMENT EAUX CIE EUROP
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 TRAITEMENT EAUX CIE EUROP filed Critical TRAITEMENT EAUX CIE EUROP
Priority to FR7502522A priority Critical patent/FR2299638A1/en
Priority to FR7502521A priority patent/FR2299637A1/en
Priority to JP827776A priority patent/JPS5199844A/en
Publication of FR2299637A1 publication Critical patent/FR2299637A1/en
Application granted granted Critical
Publication of FR2299637B1 publication Critical patent/FR2299637B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/32—Density control of clear liquid or sediment, e.g. optical control ; Control of physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21—Polarisation-affecting properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

Continuous control process for the operation of a plant for the flocculation of a liq. to be clarified consists in using a turbidimeter with a rotary polarising filter; this allows the determn., at any moment and notably at the start of the treatment, of the amt. of colloids in the liq. which have not been affected by the flocculation treatment. The turbidimeter is linked to an alarm system which operates when the colloidal turbidity attains a given value; it is also linked to an automatic regulating device for the dosing pump of the flocculant. When the value of the colloidal turbidity increases beyond an admissible max., the output of flocculant is modified accordingly. The process can be used for the constant supervision of the flocculation from the start to see whether all the colloidal particles are in fact flocculated. In addition, the rate of the flocculant addition can be adjusted continuously to ensure that all the colloids in the liq. are flocculated. The process and device can be adapted for regulating the flocculation treatment not only by adjusting the rate of addition of the flocculant, but also by controlling the amt. of dissolved oxygen in a biological treatment or of the pH of the medium.
FR7502521A 1975-01-28 1975-01-28 Continuous control process for flocculation plant - using turbidimeter with a rotary polarising filter Granted FR2299637A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7502522A FR2299638A1 (en) 1975-01-28 1975-01-28 METHOD AND DEVICE FOR MEASURING COLLOIDAL TURBIDITY OF A LIQUID
FR7502521A FR2299637A1 (en) 1975-01-28 1975-01-28 Continuous control process for flocculation plant - using turbidimeter with a rotary polarising filter
JP827776A JPS5199844A (en) 1975-01-28 1976-01-28 EKITAINOSEIJOKASHORINIOKERUGYOSHUSOCHINORENZOKUSEIGYOHOHOOYOBISONOSOCHI

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7502522A FR2299638A1 (en) 1975-01-28 1975-01-28 METHOD AND DEVICE FOR MEASURING COLLOIDAL TURBIDITY OF A LIQUID
FR7502521A FR2299637A1 (en) 1975-01-28 1975-01-28 Continuous control process for flocculation plant - using turbidimeter with a rotary polarising filter

Publications (2)

Publication Number Publication Date
FR2299637A1 true FR2299637A1 (en) 1976-08-27
FR2299637B1 FR2299637B1 (en) 1977-10-28

Family

ID=26218702

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7502521A Granted FR2299637A1 (en) 1975-01-28 1975-01-28 Continuous control process for flocculation plant - using turbidimeter with a rotary polarising filter
FR7502522A Granted FR2299638A1 (en) 1975-01-28 1975-01-28 METHOD AND DEVICE FOR MEASURING COLLOIDAL TURBIDITY OF A LIQUID

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR7502522A Granted FR2299638A1 (en) 1975-01-28 1975-01-28 METHOD AND DEVICE FOR MEASURING COLLOIDAL TURBIDITY OF A LIQUID

Country Status (1)

Country Link
FR (2) FR2299637A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378549A1 (en) * 1977-02-01 1978-08-25 Gst Regeltechnik Gmbh METHOD AND DEVICE FOR FLOCCULATING AND PRECIPITATING IN A CONTROLLED MANNER FOREIGN SUBSTANCES FROM A LIQUID

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114738254A (en) * 2022-03-30 2022-07-12 中国五冶集团有限公司 Automatic control system and method for sand content of dewatering well

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1318911A (en) * 1969-08-29 1973-05-31 Degremont Apparatus for automatically determining the optimum amounts of reagents to be added to a liquid for its clarification

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1318911A (en) * 1969-08-29 1973-05-31 Degremont Apparatus for automatically determining the optimum amounts of reagents to be added to a liquid for its clarification

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378549A1 (en) * 1977-02-01 1978-08-25 Gst Regeltechnik Gmbh METHOD AND DEVICE FOR FLOCCULATING AND PRECIPITATING IN A CONTROLLED MANNER FOREIGN SUBSTANCES FROM A LIQUID

Also Published As

Publication number Publication date
FR2299638B1 (en) 1977-07-15
FR2299637B1 (en) 1977-10-28
FR2299638A1 (en) 1976-08-27

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Legal Events

Date Code Title Description
ST Notification of lapse