IE36689L - Removing bound nitrogen from waste water - Google Patents
Removing bound nitrogen from waste waterInfo
- Publication number
- IE36689L IE36689L IE721218A IE121872A IE36689L IE 36689 L IE36689 L IE 36689L IE 721218 A IE721218 A IE 721218A IE 121872 A IE121872 A IE 121872A IE 36689 L IE36689 L IE 36689L
- Authority
- IE
- Ireland
- Prior art keywords
- tank
- stage
- line
- returned
- settling
- Prior art date
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
- C02F3/1205—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
- C02F3/1205—Particular type of activated sludge processes
- C02F3/121—Multistep treatment
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Activated Sludge Processes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
1406839 Biological purification process CELLULOSE ATTISHOLZ AG 8 Sept 1972 [23 Nov 1971] 41687/72 Heading C1C In an activated sludge process in a plant comprising, as a first stage, an aeration tank 1 and a settling tank 3 and, as a second stage, an aeration tank 6 and a settling tank 7, and in which nitrified liquid is recycled from the settling tank 7 to the first stage, the liquid fed to the first stage by supply line 12 and recycling line 17 is subjected to ammonification and denitrification, and the liquid fed to the second stage by line 5 and which is free of oxygen, is subjected to nitrification. The recycled liquid may be returned to tank 1 or 2, or conduit 2. Settled sludge is returned from tanks 3, 7 to tanks 1, 6 respectively by respective lines 13, 14. Floating sludge may be returned by line 19 from tank 3 to tank 1. The sludge discharged from tank 3 may be degassed and concentrated (e.g. by flotation). Aluminium and iron salts may be added through line 20 to remove phosphates. Flocculants such as bentonite and cellulose may be added to the second stage to aid settling. (From GB1406839 A) [FR2160799A1]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1703071 | 1971-11-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE36689L true IE36689L (en) | 1973-05-23 |
| IE36689B1 IE36689B1 (en) | 1977-02-02 |
Family
ID=4422226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1218/72A IE36689B1 (en) | 1971-11-23 | 1972-09-07 | Method for eliminating organic and inorganic bound nitrogen from domestic and industrial waste water |
Country Status (19)
| Country | Link |
|---|---|
| JP (1) | JPS5643797B2 (en) |
| AT (1) | AT318503B (en) |
| BE (1) | BE787184A (en) |
| BR (1) | BR7205090D0 (en) |
| CA (1) | CA986627A (en) |
| CH (1) | CH547235A (en) |
| DE (1) | DE2233801B2 (en) |
| DK (1) | DK141868B (en) |
| ES (1) | ES405822A1 (en) |
| FI (1) | FI55824C (en) |
| FR (1) | FR2160799B1 (en) |
| GB (1) | GB1406839A (en) |
| IE (1) | IE36689B1 (en) |
| IL (1) | IL40289A (en) |
| IT (1) | IT962707B (en) |
| NL (1) | NL7208783A (en) |
| NO (1) | NO134045C (en) |
| SE (1) | SE374340B (en) |
| ZA (1) | ZA726121B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2426672C3 (en) * | 1974-06-01 | 1980-04-24 | Bayer Ag, 5090 Leverkusen | Process for the recoagulation of activated sludge flakes and a suitable recoagulator |
| JPS5161178A (en) * | 1974-11-22 | 1976-05-27 | Maruzen Oil Co Ltd | |
| US3994802A (en) * | 1975-04-16 | 1976-11-30 | Air Products And Chemicals, Inc. | Removal of BOD and nitrogenous pollutants from wastewaters |
| SE405351C (en) * | 1975-04-25 | 1987-11-16 | Svenska Sockerfabriks Ab | PROCEDURE FOR BIOLOGICAL CLEANING OF CARBOHYDRATE AND / OR PROTEINRIC WASTE WATER |
| JPS51127570A (en) * | 1975-04-28 | 1976-11-06 | Sumitomo Chem Co Ltd | Method for treating waste water containing nitrate nitrogen and/or nit rite nitrogen |
| 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 |
| JPS53125359A (en) * | 1977-04-06 | 1978-11-01 | Niigata Eng Co Ltd | Method of removing nitrogen in waste water by non woven web plate |
| DE2803759C3 (en) * | 1978-01-28 | 1983-01-13 | Böhnke, Botho, Prof. Dr.-Ing. | Two-stage system for the treatment of wastewater according to the activated sludge process |
| DE2909168C2 (en) * | 1979-03-08 | 1983-10-27 | August Dr.-Ing. Schreiber | Process and device for the aerobic and anaerobic treatment of waste water |
| DE2918950A1 (en) * | 1979-05-10 | 1980-11-20 | Linde Ag | METHOD AND DEVICE FOR NITRIFICATION AND DENITRIFICATION OF SEWAGE |
| DE3002604A1 (en) * | 1980-01-25 | 1981-07-30 | Basf Ag, 6700 Ludwigshafen | METHOD AND DEVICE FOR BIOLOGICAL WASTE WATER TREATMENT |
| DE3206527A1 (en) * | 1982-02-24 | 1983-09-01 | Linde Ag, 6200 Wiesbaden | METHOD AND DEVICE FOR BIOLOGICAL NITRIFICATION OF WASTEWATER |
| US5447633A (en) * | 1991-08-06 | 1995-09-05 | Austrian Energy & Environment Sgp/Waagner Biro Gmbh | Activated sludge process for sewage purification |
| AT396684B (en) * | 1991-08-06 | 1993-11-25 | Norbert Dipl Ing Dr Te Matsche | Activated sludge process for the purification of waste water |
| AT397382B (en) * | 1992-01-14 | 1994-03-25 | Ingerle Kurt Dipl Ing Dr Techn | METHOD FOR DENITRIFYING WASTEWATER |
| DK1113998T3 (en) | 1998-07-24 | 2004-11-15 | Dhv Water Bv | Process for treating wastewater containing specific constituents, eg ammonia |
| GB0006552D0 (en) | 2000-03-17 | 2000-05-10 | For Research In Earth And Spac | System for removing phosphorus from waste water |
| GB0230309D0 (en) * | 2002-12-31 | 2003-02-05 | Wrc Plc | Procedure for enhancing removal of ammonia in the activated sludge process for treatment of wastewaters |
| EP1712525A4 (en) * | 2004-02-02 | 2011-01-12 | Kurita Water Ind Ltd | PROCESS FOR THE BIOLOGICAL TREATMENT OF ORGANIC WASTEWATER AND APPARATUS THEREFOR |
| CN115465953B (en) * | 2022-10-19 | 2023-09-22 | 大连安能杰科技有限公司 | AOD biochemical reaction system for treating sewage and sewage treatment method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2049488A5 (en) * | 1969-06-11 | 1971-03-26 | South African Inventions | Division of agitated sewage between settling and aeration - zones |
-
1971
- 1971-11-23 CH CH547235D patent/CH547235A/en not_active IP Right Cessation
-
1972
- 1972-06-26 NL NL7208783A patent/NL7208783A/xx not_active Application Discontinuation
- 1972-06-27 SE SE845272A patent/SE374340B/xx unknown
- 1972-07-10 DE DE2233801A patent/DE2233801B2/en not_active Withdrawn
- 1972-07-10 AT AT588872A patent/AT318503B/en not_active IP Right Cessation
- 1972-07-11 IT IT2684572A patent/IT962707B/en active
- 1972-07-20 FI FI205972A patent/FI55824C/en active
- 1972-07-28 DK DK374772AA patent/DK141868B/en not_active IP Right Cessation
- 1972-07-28 BR BR509072A patent/BR7205090D0/en unknown
- 1972-07-28 NO NO272472A patent/NO134045C/no unknown
- 1972-07-31 FR FR7227555A patent/FR2160799B1/fr not_active Expired
- 1972-07-31 ES ES405822A patent/ES405822A1/en not_active Expired
- 1972-08-04 BE BE787184A patent/BE787184A/en not_active IP Right Cessation
- 1972-09-04 IL IL4028972A patent/IL40289A/en unknown
- 1972-09-07 IE IE1218/72A patent/IE36689B1/en unknown
- 1972-09-07 ZA ZA726121A patent/ZA726121B/en unknown
- 1972-09-08 GB GB4168772A patent/GB1406839A/en not_active Expired
- 1972-09-08 CA CA151285A patent/CA986627A/en not_active Expired
- 1972-09-14 JP JP9274872A patent/JPS5643797B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IL40289A (en) | 1975-02-10 |
| DE2233801B2 (en) | 1978-05-11 |
| FI55824C (en) | 1979-10-10 |
| IT962707B (en) | 1973-12-31 |
| AT318503B (en) | 1974-10-25 |
| CH547235A (en) | 1974-03-29 |
| BR7205090D0 (en) | 1973-09-20 |
| GB1406839A (en) | 1975-09-17 |
| FR2160799B1 (en) | 1978-03-03 |
| DK141868B (en) | 1980-07-07 |
| IL40289A0 (en) | 1972-11-28 |
| FI55824B (en) | 1979-06-29 |
| NO134045C (en) | 1976-08-11 |
| FR2160799A1 (en) | 1973-07-06 |
| IE36689B1 (en) | 1977-02-02 |
| NL7208783A (en) | 1973-05-25 |
| JPS4859659A (en) | 1973-08-21 |
| DK141868C (en) | 1980-11-24 |
| BE787184A (en) | 1972-12-01 |
| AU4631272A (en) | 1974-03-14 |
| JPS5643797B2 (en) | 1981-10-15 |
| ZA726121B (en) | 1973-05-30 |
| ES405822A1 (en) | 1975-07-16 |
| NO134045B (en) | 1976-05-03 |
| CA986627A (en) | 1976-03-30 |
| DE2233801A1 (en) | 1973-05-30 |
| SE374340B (en) | 1975-03-03 |
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