SG10201901121QA - Method and apparatus for nitrogen removal in wastewater treatment - Google Patents
Method and apparatus for nitrogen removal in wastewater treatmentInfo
- Publication number
- SG10201901121QA SG10201901121QA SG10201901121QA SG10201901121QA SG10201901121QA SG 10201901121Q A SG10201901121Q A SG 10201901121QA SG 10201901121Q A SG10201901121Q A SG 10201901121QA SG 10201901121Q A SG10201901121Q A SG 10201901121QA SG 10201901121Q A SG10201901121Q A SG 10201901121QA
- Authority
- SG
- Singapore
- Prior art keywords
- ammonia
- control
- nitrogen
- wastewater treatment
- nitrogen removal
- Prior art date
Links
Classifications
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- 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
- C02F3/006—Regulation methods for biological treatment
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- 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
- C02F3/303—Nitrification and denitrification treatment characterised by the nitrification
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- 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
- C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
-
- 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
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/005—Black water originating from toilets
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/15—N03-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/348—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed
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- 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)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Biological Wastes In General (AREA)
Abstract
METHODAND APPARATUS FOR NITROGEN REMOVAL IN WASTEWATER TREATMENT One or more reactor and one or more control methods are used for nitrogen removal in wastewater treatment to achieve measured control of maintaining high ammonia oxidizing bacteria (AOB) oxidation rates while achieving nitrite oxidizing bacteria (NOB) outselection, using various control strategies, including: ) ammonia and the use of ammonia setpoints; 2) operational DO and the use of DO setpoints; 3) bioaugmentation of anammox and lighter flocculant AOB fraction; and 4) implementation of transient anoxia in several reactor configurations and conditions for removal of oxidized nitrogen using anammox or heterotrophic organisms. Controls described maximize nitrogen removal with minimal aeration, through control of transient anoxia and aerobic SRT, outselection of NOB, and control of DO concentrations or aeration interval by keeping the reactor ammonia (NH4) and oxilized nitrogen (NOx) concentrations approximately equal. Figure 8 29
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US201261700717P | 2012-09-13 | 2012-09-13 | |
US201261708498P | 2012-10-01 | 2012-10-01 | |
US201361783232P | 2013-03-14 | 2013-03-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
SG10201901121QA true SG10201901121QA (en) | 2019-03-28 |
Family
ID=50232160
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG10201901121QA SG10201901121QA (en) | 2012-09-13 | 2013-09-13 | Method and apparatus for nitrogen removal in wastewater treatment |
SG11201501891TA SG11201501891TA (en) | 2012-09-13 | 2013-09-13 | Method and apparatus for nitrogen removal in wastewater treatment |
SG10201914003SA SG10201914003SA (en) | 2012-09-13 | 2013-09-13 | Method and apparatus for nitrogen removal in wastewater treatment |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG11201501891TA SG11201501891TA (en) | 2012-09-13 | 2013-09-13 | Method and apparatus for nitrogen removal in wastewater treatment |
SG10201914003SA SG10201914003SA (en) | 2012-09-13 | 2013-09-13 | Method and apparatus for nitrogen removal in wastewater treatment |
Country Status (15)
Country | Link |
---|---|
US (2) | US9346694B2 (en) |
EP (2) | EP4279459A3 (en) |
JP (2) | JP6230032B2 (en) |
KR (1) | KR102369453B1 (en) |
CN (2) | CN107200397B (en) |
AU (1) | AU2013315133B2 (en) |
BR (1) | BR112015005607B1 (en) |
CA (1) | CA2884713C (en) |
HK (1) | HK1212669A1 (en) |
IL (1) | IL237606B (en) |
MX (1) | MX360501B (en) |
RU (1) | RU2640767C2 (en) |
SG (3) | SG10201901121QA (en) |
WO (1) | WO2014043547A1 (en) |
ZA (1) | ZA201501672B (en) |
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