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FR2181520A1 - Settling and clarification process - for water charged with solids - Google Patents

Settling and clarification process - for water charged with solids

Info

Publication number
FR2181520A1
FR2181520A1 FR7214972A FR7214972A FR2181520A1 FR 2181520 A1 FR2181520 A1 FR 2181520A1 FR 7214972 A FR7214972 A FR 7214972A FR 7214972 A FR7214972 A FR 7214972A FR 2181520 A1 FR2181520 A1 FR 2181520A1
Authority
FR
France
Prior art keywords
zone
water
flocs
reaction zone
solids
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
FR7214972A
Other languages
French (fr)
Other versions
FR2181520B1 (en
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.)
Venot Pic SA
Original Assignee
Venot Pic 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 Venot Pic SA filed Critical Venot Pic SA
Priority to FR7214972A priority Critical patent/FR2181520A1/en
Publication of FR2181520A1 publication Critical patent/FR2181520A1/en
Application granted granted Critical
Publication of FR2181520B1 publication Critical patent/FR2181520B1/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
    • C02F1/5281—Installations for water purification using chemical 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
    • 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
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B01D21/08—Settling tanks with single outlets for the separated liquid provided with flocculating compartments
    • 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
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2427—The feed or discharge opening located at a distant position from the side walls
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General 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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

Water charged, pref. slightly, with solid matter, a purified by chemical settlement and clarification. The settling tank has four zones: clarified water zone; reaction zone in which the flocs form and increase in size; compression zone in which the flocs commence to impede each other; and the compaction zone. The water to be treated and the chemical agents or flocculants are introduced into the upper chamber by a central conduit which opens into the reaction zone; the clarified water overflows and is evacuated over a sill to create an ascending current in the reaction zone which entrains the solid matter from the feed through a layer of already formed flocs. Larger flocs are formed and fall into the compression zone to reach the lower compaction zone. The thickened sludge is evacuated at fixed intervals and sent back to the water feed by a diaphragm pump. A measuring-regulating system, connected to the pump, adjusts the amount withdrawn as a function of the concn. of the solids in the in-coming water so that the optimum concn. is obtd. for the most efficient running of the appts.
FR7214972A 1972-04-26 1972-04-26 Settling and clarification process - for water charged with solids Granted FR2181520A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7214972A FR2181520A1 (en) 1972-04-26 1972-04-26 Settling and clarification process - for water charged with solids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7214972A FR2181520A1 (en) 1972-04-26 1972-04-26 Settling and clarification process - for water charged with solids

Publications (2)

Publication Number Publication Date
FR2181520A1 true FR2181520A1 (en) 1973-12-07
FR2181520B1 FR2181520B1 (en) 1978-09-29

Family

ID=9097619

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7214972A Granted FR2181520A1 (en) 1972-04-26 1972-04-26 Settling and clarification process - for water charged with solids

Country Status (1)

Country Link
FR (1) FR2181520A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158714A2 (en) * 1983-11-28 1985-10-23 Johann Müller AG Kieswerk & Baggereiunternehmung Solids-loaden liquid clarifying vessel and plant
WO1990010597A1 (en) * 1989-03-06 1990-09-20 Wiser Oy Water purifying means
WO2000044471A1 (en) * 1999-01-29 2000-08-03 Recycled Refuse International Limited Particulate separator
WO2001004059A1 (en) * 1999-07-14 2001-01-18 Ecosistema S.R.L. Plant for the depuration of industrial and civil wastes
EP1452215A1 (en) * 2003-02-25 2004-09-01 Ammann Aufbereitung AG Device and process for clarifying solids laden liquids
FR2867393A1 (en) * 2004-03-11 2005-09-16 Gerard Millote Assembly to clarify and decant a suspension, e.g. industrial effluents, has a cylinder mantle with a lower conical taper towards the base and a compacted immersed center section to carry out separated sludge at the bottom

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158714A2 (en) * 1983-11-28 1985-10-23 Johann Müller AG Kieswerk & Baggereiunternehmung Solids-loaden liquid clarifying vessel and plant
EP0158714A3 (en) * 1983-11-28 1986-01-02 Mueller J Ag Kieswerk Baggerei Solids-loaden liquid clarifying vessel and plant
WO1990010597A1 (en) * 1989-03-06 1990-09-20 Wiser Oy Water purifying means
WO2000044471A1 (en) * 1999-01-29 2000-08-03 Recycled Refuse International Limited Particulate separator
WO2001004059A1 (en) * 1999-07-14 2001-01-18 Ecosistema S.R.L. Plant for the depuration of industrial and civil wastes
EP1452215A1 (en) * 2003-02-25 2004-09-01 Ammann Aufbereitung AG Device and process for clarifying solids laden liquids
FR2867393A1 (en) * 2004-03-11 2005-09-16 Gerard Millote Assembly to clarify and decant a suspension, e.g. industrial effluents, has a cylinder mantle with a lower conical taper towards the base and a compacted immersed center section to carry out separated sludge at the bottom
WO2005087342A1 (en) * 2004-03-11 2005-09-22 Millotte Gerard High-capacity device for clarifying and decanting a material suspension in a liquid

Also Published As

Publication number Publication date
FR2181520B1 (en) 1978-09-29

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse