GB1441241A - Treatment of effluents to remove nitrogen compounds - Google Patents
Treatment of effluents to remove nitrogen compoundsInfo
- Publication number
- GB1441241A GB1441241A GB332676A GB332676A GB1441241A GB 1441241 A GB1441241 A GB 1441241A GB 332676 A GB332676 A GB 332676A GB 332676 A GB332676 A GB 332676A GB 1441241 A GB1441241 A GB 1441241A
- Authority
- GB
- United Kingdom
- Prior art keywords
- effluent
- effluents
- anaerobic zone
- zone
- treatment
- 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.)
- Expired
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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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)
Abstract
1441241 Denitrifying nitrate and nitritecontaining effluents DU FONT OF CANADA Ltd 31 July 1973 [31 July 1972] 03326/76 Divided out of 1440171 Heading C1C Aqueous effluents containing nitrate and/or nitrite ions or matter capable of forming the said ions under aerobic conditions are denitrified, in the presence of sufficient carbonaceous matter to permit complete denitrification, by passing the effluent into an anaerobic zone containing denitrifying bacteria, then to an aerobic zone from which a portion of the denitrifying bacteria and effluent is recycled to the anaerobic zone at a rate at least as high as the introduction of effluent into the anaerobic zone. The remaining effluent in the aerobic zone is passed to a clarifier from which the clarified denitrified effluent is removed and sludge recycled to the anaerobic zone.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA148,355A CA968474A (en) | 1972-07-31 | 1972-07-31 | Treatment of nitrogenous effluents |
ZA00747010A ZA747010B (en) | 1972-07-31 | 1974-10-31 | Improved treatment of nitrogenous effluents |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1441241A true GB1441241A (en) | 1976-06-30 |
Family
ID=25667087
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB332676A Expired GB1441241A (en) | 1972-07-31 | 1973-07-31 | Treatment of effluents to remove nitrogen compounds |
GB3638773A Expired GB1440171A (en) | 1972-07-31 | 1973-07-31 | Treatment of acqueous effluents to remove nitrate and nitrate ions |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3638773A Expired GB1440171A (en) | 1972-07-31 | 1973-07-31 | Treatment of acqueous effluents to remove nitrate and nitrate ions |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS4952452A (en) |
BE (1) | BE802959A (en) |
CA (1) | CA968474A (en) |
DE (1) | DE2338853A1 (en) |
FR (1) | FR2194656B1 (en) |
GB (2) | GB1441241A (en) |
NL (1) | NL7310574A (en) |
ZA (1) | ZA747010B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2119357A (en) * | 1982-03-06 | 1983-11-16 | Stengelin Gmbh & Co Kg | A process and apparatus for removing nitrogen from sewage |
US8623213B2 (en) | 2008-03-28 | 2014-01-07 | Siemens Water Technologies Llc | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods |
US8685247B2 (en) | 2009-12-03 | 2014-04-01 | Evoqua Water Technologies Llc | Systems and methods for nutrient removal in biological treatment systems |
US8801931B2 (en) | 2010-02-25 | 2014-08-12 | Evoqua Water Technologies Llc | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods |
US8808544B2 (en) | 2010-08-18 | 2014-08-19 | Evoqua Water Technologies Llc | Contact-stabilization/prime-float hybrid |
US8894857B2 (en) | 2008-03-28 | 2014-11-25 | Evoqua Water Technologies Llc | Methods and systems for treating wastewater |
US9359236B2 (en) | 2010-08-18 | 2016-06-07 | Evoqua Water Technologies Llc | Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle |
US10131550B2 (en) | 2013-05-06 | 2018-11-20 | Evoqua Water Technologies Llc | Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE405351C (en) * | 1975-04-25 | 1987-06-10 | Svenska Sockerfabriks Ab | PROCEDURE FOR BIOLOGICAL CLEANING OF CARBOHYDRATE AND / OR PROTEINRIC WASTE WATER |
US4043936A (en) * | 1976-02-24 | 1977-08-23 | The United States Of America As Represented By United States Energy Research And Development Administration | Biological denitrification of high concentration nitrate waste |
US4056465A (en) * | 1976-04-12 | 1977-11-01 | Air Products And Chemicals, Inc. | Production of non-bulking activated sludge |
US4179374A (en) * | 1976-05-12 | 1979-12-18 | Dravo Corporation | Apparatus for the treatment of wastewater |
CH621751A5 (en) * | 1976-09-24 | 1981-02-27 | Attisholz Cellulose | Process for the biochemical purification of waste water containing organic constituents which favour the undesirable development of filamentous bacteria and/or the formation of bulking sludge |
US4315823A (en) * | 1976-10-29 | 1982-02-16 | Celanese Corporation | Anaerobic treatment |
DE2825007A1 (en) * | 1978-06-07 | 1979-12-13 | Gubernatorova Geb Denisova | Removal of nitrate(s) nitrite(s) and organic cpds. from waste water - by activated sludge treatment with added ammonia or urea |
DE2904335A1 (en) * | 1979-02-06 | 1980-11-20 | Bayer Ag | METHOD FOR THE PURIFICATION OF WASTEWATER WITH A HIGH CONTENT OF NITROGEN COMPOUNDS |
US4415453A (en) * | 1980-10-21 | 1983-11-15 | Celanese Corporation | Anaerobic treatment |
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 |
DE3134879A1 (en) * | 1981-09-03 | 1983-04-07 | Menzel Gmbh & Co, 7000 Stuttgart | METHOD FOR THE BIOCHEMICAL IMPLEMENTATION OF SUBSTANCES |
DE3238089A1 (en) * | 1982-10-14 | 1984-04-19 | Ballhaus, Heribert, Dipl.-Ing. Dr.-Ing, 7517 Waldbronn | Apparatus for detecting corrosion damage on steel cable conveyor belts |
SE8603843L (en) * | 1986-09-12 | 1988-03-13 | Vyrmetoder Ab | PROCEDURE FOR WASTE WATER CLEANING INCLUDING NITRATE AND / OR NITRIT |
DE102015002395A1 (en) * | 2015-02-23 | 2016-08-25 | HAWK Hochschule für angewandte Wissenschaft und Kunst Fachhochschule Hildesheim/Holzminden/Göttingen | Process and plant for wastewater treatment |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2875151A (en) * | 1952-04-22 | 1959-02-24 | Schenley Ind Inc | Process for treatment of sewage |
-
1972
- 1972-07-31 CA CA148,355A patent/CA968474A/en not_active Expired
-
1973
- 1973-07-30 BE BE134006A patent/BE802959A/en unknown
- 1973-07-30 FR FR7327803A patent/FR2194656B1/fr not_active Expired
- 1973-07-31 DE DE19732338853 patent/DE2338853A1/en active Pending
- 1973-07-31 NL NL7310574A patent/NL7310574A/xx not_active Application Discontinuation
- 1973-07-31 GB GB332676A patent/GB1441241A/en not_active Expired
- 1973-07-31 JP JP48086273A patent/JPS4952452A/ja active Pending
- 1973-07-31 GB GB3638773A patent/GB1440171A/en not_active Expired
-
1974
- 1974-10-31 ZA ZA00747010A patent/ZA747010B/en unknown
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2119357A (en) * | 1982-03-06 | 1983-11-16 | Stengelin Gmbh & Co Kg | A process and apparatus for removing nitrogen from sewage |
US9359239B2 (en) | 2008-03-28 | 2016-06-07 | Evoqua Water Technologies Llc | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods |
US8623213B2 (en) | 2008-03-28 | 2014-01-07 | Siemens Water Technologies Llc | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods |
US9359238B2 (en) | 2008-03-28 | 2016-06-07 | Evoqua Water Technologies Llc | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods |
US8894857B2 (en) | 2008-03-28 | 2014-11-25 | Evoqua Water Technologies Llc | Methods and systems for treating wastewater |
US8894856B2 (en) | 2008-03-28 | 2014-11-25 | Evoqua Water Technologies Llc | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods |
US8894855B2 (en) | 2008-03-28 | 2014-11-25 | Evoqua Water Technologies Llc | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods |
US8685247B2 (en) | 2009-12-03 | 2014-04-01 | Evoqua Water Technologies Llc | Systems and methods for nutrient removal in biological treatment systems |
US8801931B2 (en) | 2010-02-25 | 2014-08-12 | Evoqua Water Technologies Llc | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods |
US9359236B2 (en) | 2010-08-18 | 2016-06-07 | Evoqua Water Technologies Llc | Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle |
US8808544B2 (en) | 2010-08-18 | 2014-08-19 | Evoqua Water Technologies Llc | Contact-stabilization/prime-float hybrid |
US9783440B2 (en) | 2010-08-18 | 2017-10-10 | Evoqua Water Technologies Llc | Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle |
US10131550B2 (en) | 2013-05-06 | 2018-11-20 | Evoqua Water Technologies Llc | Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle |
Also Published As
Publication number | Publication date |
---|---|
FR2194656A1 (en) | 1974-03-01 |
GB1440171A (en) | 1976-06-23 |
CA968474A (en) | 1975-05-27 |
FR2194656B1 (en) | 1979-10-19 |
ZA747010B (en) | 1975-11-26 |
DE2338853A1 (en) | 1974-02-14 |
JPS4952452A (en) | 1974-05-21 |
BE802959A (en) | 1973-11-16 |
NL7310574A (en) | 1974-02-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |