FR2339575A1 - Treating drinking and industrial water contg. mineral salts - by mixing with precipitating agents in dispersion zone then decanting - Google Patents

Treating drinking and industrial water contg. mineral salts - by mixing with precipitating agents in dispersion zone then decanting

Info

Publication number
FR2339575A1
FR2339575A1 FR7602523A FR7602523A FR2339575A1 FR 2339575 A1 FR2339575 A1 FR 2339575A1 FR 7602523 A FR7602523 A FR 7602523A FR 7602523 A FR7602523 A FR 7602523A FR 2339575 A1 FR2339575 A1 FR 2339575A1
Authority
FR
France
Prior art keywords
water
decanting
mixing
industrial water
pptn
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
FR7602523A
Other languages
French (fr)
Other versions
FR2339575B1 (en
Inventor
Francois Berne
Jean Bouchard
Daniel Hourtic
Yves Richard
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.)
Suez International SAS
Original Assignee
Degremont SA
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 Degremont SA filed Critical Degremont SA
Priority to FR7602523A priority Critical patent/FR2339575A1/en
Publication of FR2339575A1 publication Critical patent/FR2339575A1/en
Application granted granted Critical
Publication of FR2339575B1 publication Critical patent/FR2339575B1/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
    • 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
    • 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
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Treatment of water by crystalline pptn. and decantation, comprises forming a homogeneous dispersion of the water, the reactants required for the pptn. and sepd. sludge from previously treated water. The conc. of crystal nuclei is sufficient for the pptn. to be almost complete before the decantation stage and to be completed during decantation. Used for treating drinking and industrial water or aq. industrial effluent contg. chalk, lime, bicarbonate, sulphates, phosphates etc., the process enables accurate closing and distribution avoiding crusting up of walls, pipes, etc.
FR7602523A 1976-01-30 1976-01-30 Treating drinking and industrial water contg. mineral salts - by mixing with precipitating agents in dispersion zone then decanting Granted FR2339575A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7602523A FR2339575A1 (en) 1976-01-30 1976-01-30 Treating drinking and industrial water contg. mineral salts - by mixing with precipitating agents in dispersion zone then decanting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7602523A FR2339575A1 (en) 1976-01-30 1976-01-30 Treating drinking and industrial water contg. mineral salts - by mixing with precipitating agents in dispersion zone then decanting

Publications (2)

Publication Number Publication Date
FR2339575A1 true FR2339575A1 (en) 1977-08-26
FR2339575B1 FR2339575B1 (en) 1979-07-20

Family

ID=9168554

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7602523A Granted FR2339575A1 (en) 1976-01-30 1976-01-30 Treating drinking and industrial water contg. mineral salts - by mixing with precipitating agents in dispersion zone then decanting

Country Status (1)

Country Link
FR (1) FR2339575A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003327A2 (en) * 1978-01-18 1979-08-08 Passavant-Werke Ag Process for the chemical-mechanical treatment and/or purification of ground, surface or waste waters
FR2426024A1 (en) * 1978-05-18 1979-12-14 Dhv Raadgevend Ing METHOD AND APPARATUS FOR CHEMICAL REDUCTION OF THE PHOSPHATE CONTENT OF WATER
FR2460278A1 (en) * 1979-06-30 1981-01-23 Stamicarbon PROCESS FOR THE CHEMICAL REMOVAL OF PHOSPHORUS COMPOUNDS FROM WASTE WATER AND PROCESS FOR PURIFYING WASTEWATER
FR2515150A1 (en) * 1981-10-22 1983-04-29 Wintershall Ag PROCESS FOR STORING REUSABLE LIQUID WASTE COMPLETELY OR PARTIALLY IN SOURCED FRACTIONS OF SALT OR GROUNDWATER SALT CAVES
WO1997021632A1 (en) * 1995-12-13 1997-06-19 Degremont Method for desalinating and demineralising solutions containing acids and/or metal salts
FR2742429A1 (en) * 1995-12-13 1997-06-20 Degremont Desalination, demineralisation and optional crystallisation of solutions containing acids or metal salts
WO2001096246A1 (en) * 2000-06-15 2001-12-20 Htci Effluent purifying device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003327A2 (en) * 1978-01-18 1979-08-08 Passavant-Werke Ag Process for the chemical-mechanical treatment and/or purification of ground, surface or waste waters
EP0003327A3 (en) * 1978-01-18 1979-08-22 Passavant-Werke Ag & Co. Kg Process for the chemical-mechanical treatment and/or purification of ground, surface or waste waters
FR2426024A1 (en) * 1978-05-18 1979-12-14 Dhv Raadgevend Ing METHOD AND APPARATUS FOR CHEMICAL REDUCTION OF THE PHOSPHATE CONTENT OF WATER
FR2460278A1 (en) * 1979-06-30 1981-01-23 Stamicarbon PROCESS FOR THE CHEMICAL REMOVAL OF PHOSPHORUS COMPOUNDS FROM WASTE WATER AND PROCESS FOR PURIFYING WASTEWATER
FR2515150A1 (en) * 1981-10-22 1983-04-29 Wintershall Ag PROCESS FOR STORING REUSABLE LIQUID WASTE COMPLETELY OR PARTIALLY IN SOURCED FRACTIONS OF SALT OR GROUNDWATER SALT CAVES
WO1997021632A1 (en) * 1995-12-13 1997-06-19 Degremont Method for desalinating and demineralising solutions containing acids and/or metal salts
FR2742429A1 (en) * 1995-12-13 1997-06-20 Degremont Desalination, demineralisation and optional crystallisation of solutions containing acids or metal salts
FR2742430A1 (en) * 1995-12-13 1997-06-20 Degremont DESALINATION AND DEMINERALIZATION OF SOLUTIONS CONTAINING ACIDS AND / OR METAL SALTS
WO2001096246A1 (en) * 2000-06-15 2001-12-20 Htci Effluent purifying device
FR2810310A1 (en) * 2000-06-15 2001-12-21 Htci Industrial waste water treatment apparatus comprises coagulating or flocculating agents and effluent mixed in container and supplied to flocculation vat in bottom of clarifying tank

Also Published As

Publication number Publication date
FR2339575B1 (en) 1979-07-20

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Legal Events

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