NL1001157C2 - Water treatment plant - has concentrically located cylindrical or elliptical treatment tanks - Google Patents

Water treatment plant - has concentrically located cylindrical or elliptical treatment tanks

Info

Publication number
NL1001157C2
NL1001157C2 NL1001157A NL1001157A NL1001157C2 NL 1001157 C2 NL1001157 C2 NL 1001157C2 NL 1001157 A NL1001157 A NL 1001157A NL 1001157 A NL1001157 A NL 1001157A NL 1001157 C2 NL1001157 C2 NL 1001157C2
Authority
NL
Netherlands
Prior art keywords
reservoir
sludge
tank
anoxic
wall
Prior art date
Application number
NL1001157A
Other languages
Dutch (nl)
Other versions
NL1001157A1 (en
Inventor
Anthonie Cornelis De Vries
Original Assignee
Gruyter B V Bureau De
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 Gruyter B V Bureau De filed Critical Gruyter B V Bureau De
Priority to NL1001157A priority Critical patent/NL1001157C2/en
Publication of NL1001157A1 publication Critical patent/NL1001157A1/en
Application granted granted Critical
Publication of NL1001157C2 publication Critical patent/NL1001157C2/en

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
    • C02F3/28—Anaerobic digestion processes
    • C02F3/286—Anaerobic digestion processes including two or more steps
    • 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
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
    • 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
    • C02F3/1242—Small compact installations for use in homes, apartment blocks, hotels or the like
    • C02F3/1247—Small compact installations for use in homes, apartment blocks, hotels or the like comprising circular tanks with elements, e.g. decanters, aeration basins, in the form of segments, crowns or sectors
    • 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
    • C02F3/30—Aerobic and anaerobic processes
    • 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
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/302—Nitrification and denitrification treatment
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • 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)
  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

Treatment plant (1), partic. for waste water contg. nitrates and phosphates has an outer cylindrical wall (2) and three concentrically located cylindrical or elliptical treatment tanks bounded by three inner walls (3,4,5). The outer ring -section tank or reservoir (6) formed by the outer wall (2) and first inner wall (3) is the anaerobic reservoir. The second reservoir serves as the contact or mixing reservoir (7), and the space between the two inner walls (4,5) as the anoxic reservoir (8). The third inner wall (5) encloses a cylindrical space or settlement reservoir (9). Waste water enters the receiving reservoir (10) and passes through openings (11) into the anaerobic reservoir (6) where it is treated by anoxic sludge to release the phosphates present. The sludge produced separates from the phosphate-rich water which is prevented from circulating around the tank by baffles (12) which extend to about one third the depth of the tank. This assists the sludge in the water to settle out more easily. The sludge which settles into the base of the tank can circulate beneath the baffle (12). The phosphate-rich water in the upper part of the reservoir (6) is pumped to the inner settlement tank (9) where it is treated by the addn. of chemicals. The anoxic sludge passes to the mixing or contact reservoir (7) where recirculated sludge is added. Nitrates are removed in the following anoxic reservoir (8) by means of a redn. process.
NL1001157A 1994-09-28 1995-09-08 Water treatment plant - has concentrically located cylindrical or elliptical treatment tanks NL1001157C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL1001157A NL1001157C2 (en) 1994-09-28 1995-09-08 Water treatment plant - has concentrically located cylindrical or elliptical treatment tanks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9401578 1994-09-28
NL1001157A NL1001157C2 (en) 1994-09-28 1995-09-08 Water treatment plant - has concentrically located cylindrical or elliptical treatment tanks

Publications (2)

Publication Number Publication Date
NL1001157A1 NL1001157A1 (en) 1996-07-11
NL1001157C2 true NL1001157C2 (en) 1996-09-12

Family

ID=26642168

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1001157A NL1001157C2 (en) 1994-09-28 1995-09-08 Water treatment plant - has concentrically located cylindrical or elliptical treatment tanks

Country Status (1)

Country Link
NL (1) NL1001157C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1009590C2 (en) * 1998-07-08 2000-01-11 Sirius B V Sewage treatment plant, comprising interlinked concentric ring shaped reservoirs acting as anaerobic, contact, anoxic and oxic reactors
EP1114797A1 (en) * 2000-01-05 2001-07-11 Sirius B.V. Device for the purification of waste water.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1009590C2 (en) * 1998-07-08 2000-01-11 Sirius B V Sewage treatment plant, comprising interlinked concentric ring shaped reservoirs acting as anaerobic, contact, anoxic and oxic reactors
EP1114797A1 (en) * 2000-01-05 2001-07-11 Sirius B.V. Device for the purification of waste water.

Also Published As

Publication number Publication date
NL1001157A1 (en) 1996-07-11

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Legal Events

Date Code Title Description
AD1A A request for search or an international type search has been filed
PD2A A request for search or an international type search has been filed
ZD Corrections to earlier publications

Free format text: PAT.BUL.11/96,HEADING PD,SECTIONS 4 AND 6,PAGES 1636 AND 1641;THE NAME OF THE PROPRIETOR OF THE PATENT 'BUREAU DE GRUYTER B.V. TE ZWOLLE' SHOULD BE MODIFIED INTO:SIRIUS B.V. TE ZWOLLE

SD Assignments of patents

Owner name: HASKONING NEDERLAND B.V.

VD1 Lapsed due to non-payment of the annual fee

Effective date: 20070401