DK1030821T3 - Process for Wastewater Denitrification - Google Patents

Process for Wastewater Denitrification

Info

Publication number
DK1030821T3
DK1030821T3 DK98959813T DK98959813T DK1030821T3 DK 1030821 T3 DK1030821 T3 DK 1030821T3 DK 98959813 T DK98959813 T DK 98959813T DK 98959813 T DK98959813 T DK 98959813T DK 1030821 T3 DK1030821 T3 DK 1030821T3
Authority
DK
Denmark
Prior art keywords
clarification
clarification tank
preliminary
tank
inlet
Prior art date
Application number
DK98959813T
Other languages
Danish (da)
Inventor
Maximilian Hoegl
Original Assignee
Sued Chemie Ag
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
Priority claimed from DE19843967A external-priority patent/DE19843967A1/en
Application filed by Sued Chemie Ag filed Critical Sued Chemie Ag
Application granted granted Critical
Publication of DK1030821T3 publication Critical patent/DK1030821T3/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
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1263—Sequencing batch reactors [SBR]
    • 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
    • C02F3/04—Aerobic processes using trickle filters
    • 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
    • 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)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Removal Of Specific Substances (AREA)
  • Activated Sludge Processes (AREA)

Abstract

The invention relates to a method for denitrifying waste waters in a clarification plant, comprising at least one preliminary clarification tank (2) with an inlet (1), at least one biological clarification stage (6) and at least one final clarification tank (8). The inventive method is characterized in that the nitrified waste water (9) contained in the final clarification tank (8) is recycled with the excess sludge (13) coming out of the biological clarification stage and the sludge mixture coming out of the preliminary clarification tank (2) in the inlet of the preliminary clarification tank (2).
DK98959813T 1997-10-30 1998-10-30 Process for Wastewater Denitrification DK1030821T3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19748001 1997-10-30
DE19843967A DE19843967A1 (en) 1997-10-30 1998-09-24 Process for the denitrification of waste water
PCT/EP1998/006879 WO1999023038A1 (en) 1997-10-30 1998-10-30 Method for denitrifying waste water

Publications (1)

Publication Number Publication Date
DK1030821T3 true DK1030821T3 (en) 2001-10-08

Family

ID=26041217

Family Applications (1)

Application Number Title Priority Date Filing Date
DK98959813T DK1030821T3 (en) 1997-10-30 1998-10-30 Process for Wastewater Denitrification

Country Status (9)

Country Link
EP (1) EP1030821B1 (en)
AT (1) ATE204556T1 (en)
AU (1) AU1558299A (en)
CZ (1) CZ293484B6 (en)
DK (1) DK1030821T3 (en)
HU (1) HU225518B1 (en)
PL (1) PL192740B1 (en)
SI (1) SI20265A (en)
WO (1) WO1999023038A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2078703A1 (en) * 2007-11-14 2009-07-15 Sued-Chemie AG Method for denitrification of wastewater in a sewage treatment plant
EP2230212B9 (en) * 2009-03-10 2015-02-18 Forschungsinstitut für Wasser- und Abfallwirtschaft an der RWTH Aachen e.V. Method for operating a waste water treatment plant for cleaning waste water and waste water treatment plant
CN102358663A (en) * 2011-09-21 2012-02-22 浙江大学 Low-DO (dissolved oxygen) rear denitrification sewage treatment plant and technique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994802A (en) * 1975-04-16 1976-11-30 Air Products And Chemicals, Inc. Removal of BOD and nitrogenous pollutants from wastewaters
US4290884A (en) * 1978-08-25 1981-09-22 Clevepak Corporation Nitrification-denitrification system
DE3130718A1 (en) * 1981-08-03 1983-03-03 Passavant-Werke AG & Co KG, 6209 Aarbergen PLANT FOR BIOLOGICAL WASTEWATER TREATMENT AND METHOD FOR OPERATING THE PLANT
DE4109815A1 (en) * 1991-03-26 1992-10-01 Passavant Werke Biological treatment of waste waters - with aeration of recycle sludge in a separate tank fed with waste water with high ammonium content

Also Published As

Publication number Publication date
CZ20001573A3 (en) 2002-02-13
PL340327A1 (en) 2001-01-29
ATE204556T1 (en) 2001-09-15
WO1999023038A1 (en) 1999-05-14
EP1030821B1 (en) 2001-08-22
HUP0004608A3 (en) 2002-08-28
HU225518B1 (en) 2007-01-29
AU1558299A (en) 1999-05-24
PL192740B1 (en) 2006-12-29
CZ293484B6 (en) 2004-05-12
HUP0004608A2 (en) 2001-05-28
EP1030821A1 (en) 2000-08-30
SI20265A (en) 2000-12-31

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