FR2352751A1 - Plant for activated sludge treatment of effluent - of compact design and construction - Google Patents

Plant for activated sludge treatment of effluent - of compact design and construction

Info

Publication number
FR2352751A1
FR2352751A1 FR7716367A FR7716367A FR2352751A1 FR 2352751 A1 FR2352751 A1 FR 2352751A1 FR 7716367 A FR7716367 A FR 7716367A FR 7716367 A FR7716367 A FR 7716367A FR 2352751 A1 FR2352751 A1 FR 2352751A1
Authority
FR
France
Prior art keywords
sludge
basin
equipment
greatest dimension
scraper
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.)
Withdrawn
Application number
FR7716367A
Other languages
French (fr)
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 Stamicarbon BV filed Critical Stamicarbon BV
Publication of FR2352751A1 publication Critical patent/FR2352751A1/en
Withdrawn legal-status Critical Current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
    • C02F3/12—Activated sludge processes
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1257—Oxidation ditches
    • 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
    • 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)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Activated Sludge Processes (AREA)

Abstract

Equipment for purifying effluent by the activated sludge process includes units for pretreating the water, a round aeration basin aerated by gas jets, a settling basin with a scraper and a unit for working the sludge. The basin is formed by a dam with the ground inside it removed. The bottom is not necessarily connected to the walls. The pretreatment includes screening to remove large solids and a disintegrator (comminuting pump). The air jets stir the liq. in the aeration basin, producing a circular motion. Heavy material collected near the centre to remove batchwise or continuously. A virtually horizontal channel connects the top of the aeration basin and a distributor in the centre of the settler. The channel is above the scraper. Sludge is removed continuously. A lagoon forms a buffer store for sludge. The equipment is bounded by two parallel lines. These correspond to the greatest dimension of the equipment. Their length is determined by greatest dimension of the largest unit on one hand and the sum of the smallest dimension of the largest unit and the greatest dimension of any other on the other hand. Design ensures minimisation of plant area.
FR7716367A 1976-05-29 1977-05-27 Plant for activated sludge treatment of effluent - of compact design and construction Withdrawn FR2352751A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7605818A NL7605818A (en) 1976-05-29 1976-05-29 DEVICE FOR BIOLOGICAL PURIFICATION OF WASTE WATER.

Publications (1)

Publication Number Publication Date
FR2352751A1 true FR2352751A1 (en) 1977-12-23

Family

ID=19826286

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7716367A Withdrawn FR2352751A1 (en) 1976-05-29 1977-05-27 Plant for activated sludge treatment of effluent - of compact design and construction

Country Status (4)

Country Link
BE (1) BE855140A (en)
DE (1) DE2724218A1 (en)
FR (1) FR2352751A1 (en)
NL (1) NL7605818A (en)

Also Published As

Publication number Publication date
BE855140A (en) 1977-11-28
DE2724218A1 (en) 1977-12-15
NL7605818A (en) 1977-12-01

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Legal Events

Date Code Title Description
ST Notification of lapse