DE2648797C3 - Verfahren zum Beseitigen von Phosphaten aus BSB-haltigem Abwasser - Google Patents
Verfahren zum Beseitigen von Phosphaten aus BSB-haltigem AbwasserInfo
- Publication number
- DE2648797C3 DE2648797C3 DE2648797A DE2648797A DE2648797C3 DE 2648797 C3 DE2648797 C3 DE 2648797C3 DE 2648797 A DE2648797 A DE 2648797A DE 2648797 A DE2648797 A DE 2648797A DE 2648797 C3 DE2648797 C3 DE 2648797C3
- Authority
- DE
- Germany
- Prior art keywords
- phosphate
- sludge
- zone
- liquid
- separation
- 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
- 229910019142 PO4 Inorganic materials 0.000 title claims description 428
- 235000021317 phosphate Nutrition 0.000 title claims description 428
- 238000000034 method Methods 0.000 title claims description 102
- 150000003013 phosphoric acid derivatives Chemical class 0.000 title claims description 70
- 239000002351 wastewater Substances 0.000 title claims description 64
- 230000008569 process Effects 0.000 title claims description 39
- 239000010452 phosphate Substances 0.000 claims description 358
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 358
- 238000000926 separation method Methods 0.000 claims description 286
- 239000010802 sludge Substances 0.000 claims description 268
- 239000007788 liquid Substances 0.000 claims description 211
- 239000001301 oxygen Substances 0.000 claims description 88
- 229910052760 oxygen Inorganic materials 0.000 claims description 88
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 87
- 239000002609 medium Substances 0.000 claims description 77
- 239000007787 solid Substances 0.000 claims description 77
- 239000007789 gas Substances 0.000 claims description 63
- 238000005352 clarification Methods 0.000 claims description 36
- 230000008719 thickening Effects 0.000 claims description 35
- 239000006228 supernatant Substances 0.000 claims description 27
- 238000005273 aeration Methods 0.000 claims description 21
- 238000003958 fumigation Methods 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 16
- 244000005700 microbiome Species 0.000 claims description 15
- 230000006870 function Effects 0.000 claims description 13
- 239000007791 liquid phase Substances 0.000 claims description 13
- 239000010865 sewage Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000006872 improvement Effects 0.000 claims description 10
- 230000014759 maintenance of location Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 9
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 8
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 8
- 239000004571 lime Substances 0.000 claims description 8
- 238000004065 wastewater treatment Methods 0.000 claims description 8
- 238000001994 activation Methods 0.000 claims description 6
- 239000012736 aqueous medium Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 230000008901 benefit Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000011221 initial treatment Methods 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 230000005791 algae growth Effects 0.000 claims 1
- 239000008346 aqueous phase Substances 0.000 claims 1
- 239000003599 detergent Substances 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 claims 1
- 238000012851 eutrophication Methods 0.000 claims 1
- 238000010907 mechanical stirring Methods 0.000 claims 1
- 230000005012 migration Effects 0.000 claims 1
- 238000013508 migration Methods 0.000 claims 1
- 239000010815 organic waste Substances 0.000 claims 1
- 239000012716 precipitator Substances 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 239000003643 water by type Substances 0.000 claims 1
- 239000012071 phase Substances 0.000 description 29
- 238000012360 testing method Methods 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 14
- 238000002474 experimental method Methods 0.000 description 9
- 238000009423 ventilation Methods 0.000 description 9
- 238000005189 flocculation Methods 0.000 description 8
- 230000016615 flocculation Effects 0.000 description 8
- 238000005192 partition Methods 0.000 description 8
- 230000008030 elimination Effects 0.000 description 7
- 238000003379 elimination reaction Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000011282 treatment Methods 0.000 description 7
- 230000005501 phase interface Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 229910001882 dioxygen Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000006213 oxygenation reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000003834 intracellular effect Effects 0.000 description 2
- 159000000014 iron salts Chemical class 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 244000007645 Citrus mitis Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- -1 phospho- Chemical class 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- C02F3/26—Activated sludge processes using pure oxygen or oxygen-rich gas
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/906—Phosphorus containing
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Analytical Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Activated Sludge Processes (AREA)
- Physical Water Treatments (AREA)
- Biological Treatment Of Waste Water (AREA)
- Water Treatment By Sorption (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/626,459 US4042493A (en) | 1975-10-28 | 1975-10-28 | Phosphate removal from BOD-containing wastewater |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2648797A1 DE2648797A1 (de) | 1977-05-12 |
| DE2648797B2 DE2648797B2 (de) | 1978-03-30 |
| DE2648797C3 true DE2648797C3 (de) | 1978-11-23 |
Family
ID=24510462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2648797A Expired DE2648797C3 (de) | 1975-10-28 | 1976-10-27 | Verfahren zum Beseitigen von Phosphaten aus BSB-haltigem Abwasser |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US4042493A (OSRAM) |
| JP (1) | JPS5255258A (OSRAM) |
| AR (1) | AR217812A1 (OSRAM) |
| AU (1) | AU500264B2 (OSRAM) |
| BE (1) | BE847702A (OSRAM) |
| BR (1) | BR7607195A (OSRAM) |
| CA (1) | CA1072224A (OSRAM) |
| CH (1) | CH617412A5 (OSRAM) |
| DE (1) | DE2648797C3 (OSRAM) |
| DK (1) | DK486276A (OSRAM) |
| FI (1) | FI65764C (OSRAM) |
| GB (1) | GB1540469A (OSRAM) |
| IE (1) | IE44203B1 (OSRAM) |
| IL (1) | IL50781A (OSRAM) |
| IN (1) | IN145560B (OSRAM) |
| IT (1) | IT1066302B (OSRAM) |
| NL (1) | NL185836C (OSRAM) |
| NO (1) | NO148918C (OSRAM) |
| TR (1) | TR19217A (OSRAM) |
| ZA (1) | ZA765966B (OSRAM) |
Families Citing this family (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183808A (en) * | 1977-11-23 | 1980-01-15 | Union Carbide Corporation | Phosphate removal from wastewater |
| US4173531A (en) * | 1977-11-23 | 1979-11-06 | Union Carbide Corporation | Nitrification-denitrification of wastewater |
| US4271026A (en) * | 1979-10-09 | 1981-06-02 | Air Products And Chemicals, Inc. | Control of activated sludge wastewater treating process for enhanced phosphorous removal |
| JPS5839599B2 (ja) * | 1981-04-13 | 1983-08-31 | 荏原インフイルコ株式会社 | 有機性廃液からのリン除去法 |
| SE441441B (sv) * | 1981-11-24 | 1985-10-07 | Wilhelm Karl Ripl | Sett att i en anleggning for rening av avloppsvatten eller ravatten astadkomma en vattenlosning med hog fosforhalt och en atervinning av metallforeningar |
| DE3206440A1 (de) * | 1982-02-23 | 1983-09-01 | Linde Ag, 6200 Wiesbaden | Verfahren und vorrichtung zur biologischen reinigung von phosphathaltigem abwasser |
| US4507206A (en) * | 1982-07-19 | 1985-03-26 | Hughes Geoffrey F | Method for restoring and maintaining eutrophied natural bodies of waters |
| HU205330B (en) * | 1986-05-19 | 1992-04-28 | Tatabanyai Banyak Vallalat | Process for purifying sewage containing organic material, by increased removal of phosphorus and nitrogen |
| US4780208A (en) * | 1986-08-29 | 1988-10-25 | Botho Bohnke | Process for purification of effluent |
| US4956094A (en) * | 1988-12-22 | 1990-09-11 | Biospherics Incorporated | Enhanced phosphate removal from bod-containing wastewater |
| JP3307878B2 (ja) * | 1998-06-15 | 2002-07-24 | 神鋼パンテツク株式会社 | 有機性廃水の処理方法及びその処理装置 |
| US6218174B1 (en) | 1999-05-12 | 2001-04-17 | Gene E. Keyser | Purification of fluids and control of solute concentrations through selective degasification |
| US7850850B2 (en) * | 2001-03-02 | 2010-12-14 | Daniel Robert Miklos | Apparatus and methods for control of waste treatment processes |
| US7854842B2 (en) * | 2001-03-02 | 2010-12-21 | Daniel Robert Miklos | Apparatus and methods for control of waste treatment processes |
| US6660163B2 (en) | 2001-03-02 | 2003-12-09 | Daniel Robert Miklos | Waste treatment with control over biological solids |
| US7429328B2 (en) * | 2001-03-02 | 2008-09-30 | Advanced Treatment Sciences, Inc. | Apparatus and methods for control of waste treatment processes |
| US8002986B2 (en) * | 2001-03-02 | 2011-08-23 | Daniel R. Miklos | Apparatus and methods for control of waste treatment processes |
| US7172699B1 (en) | 2004-10-13 | 2007-02-06 | Eimco Water Technologies Llc | Energy efficient wastewater treatment for nitrogen and phosphorus removal |
| US7344643B2 (en) * | 2005-06-30 | 2008-03-18 | Siemens Water Technologies Holding Corp. | Process to enhance phosphorus removal for activated sludge wastewater treatment systems |
| EP1928794A4 (en) * | 2005-09-02 | 2012-05-09 | Siemens Industry Inc | ABSORBENT OF INERT SOLIDS FROM A WASTE TREATMENT PROCESS WITH LOW BELLY MUD |
| GB2430793A (en) * | 2005-09-29 | 2007-04-04 | Bookham Technology Plc | Bragg grating reflection strength control |
| US7473364B2 (en) * | 2006-03-07 | 2009-01-06 | Siemens Water Technologies Corp. | Multivalent metal ion management for low sludge processes |
| US7927493B2 (en) * | 2007-05-11 | 2011-04-19 | Ch2M Hill, Inc. | Low phosphorus water treatment methods |
| EP2279152A4 (en) | 2008-03-28 | 2012-11-28 | Siemens Industry Inc | SYSTEMS AND METHODS FOR AEROBIC AND ANAEROBIC HYBRID TREATMENT OF WASTEWATER AND SLUDGE |
| US8894856B2 (en) | 2008-03-28 | 2014-11-25 | Evoqua Water Technologies Llc | Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods |
| WO2010094115A1 (en) | 2009-02-18 | 2010-08-26 | Uts Bioenergy Llc | Anaerobic fermentation to produce biogas |
| WO2011068931A1 (en) * | 2009-12-03 | 2011-06-09 | Siemens Industry, Inc. | Systems and methods for nutrient removal in biological treatment systems |
| US8721887B2 (en) | 2009-12-07 | 2014-05-13 | Ch2M Hill, Inc. | Method and system for treating wastewater |
| EP2560922A4 (en) | 2010-04-21 | 2015-10-07 | Evoqua Water Technologies Pte Ltd | METHOD AND SYSTEMS FOR WASTEWATER PROCESSING |
| US8932849B2 (en) * | 2010-04-28 | 2015-01-13 | The Board Of Trustees Of The Leland Stanford Junior University | Microbial production of nitrous oxide coupled with chemical reaction of gaseous nitrous oxide including phosphorus recovery and nitrite reduction to nitrous oxide |
| AU2011288881A1 (en) * | 2010-08-13 | 2013-02-28 | Anaergia Inc. | Treatment of municipal wastewater with anaerobic digestion |
| US9359236B2 (en) | 2010-08-18 | 2016-06-07 | Evoqua Water Technologies Llc | Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle |
| CN103068748A (zh) | 2010-08-18 | 2013-04-24 | 西门子工业公司 | 接触-稳定/初期-浮选混合 |
| US9272935B2 (en) | 2011-02-03 | 2016-03-01 | Anaergia Inc. | Treatment of waste products with anaerobic digestion |
| JP2013119080A (ja) * | 2011-12-09 | 2013-06-17 | Kobelco Eco-Solutions Co Ltd | リン含有廃水の処理方法及び処理装置 |
| AU2014262972B2 (en) | 2013-05-06 | 2017-09-28 | Evoqua Water Technologies Llc | Wastewater biosorption with dissolved air flotation |
| JP5944467B2 (ja) * | 2014-10-31 | 2016-07-05 | メタウォーター株式会社 | 下水処理システム |
| CA2918772C (en) | 2015-01-27 | 2023-08-22 | Anaergia Inc. | Treatment of waste products with anaerobic digestion |
| FR3036698B1 (fr) | 2015-05-29 | 2021-04-09 | Orege | Procede et dispositif d'epuration d'eaux domestiques ou industrielles. |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3235487A (en) * | 1963-02-04 | 1966-02-15 | Fmc Corp | Sewage treatment process |
| US3236766A (en) * | 1964-03-31 | 1966-02-22 | Hazleton Lab Inc | Sewage treatment process |
| US3386910A (en) * | 1965-05-25 | 1968-06-04 | Fmc Corp | Process for treatment of sewage and nutrient removal |
| US3390077A (en) * | 1966-05-04 | 1968-06-25 | Fmc Corp | Sewage treatment process |
| US3385785A (en) * | 1966-05-04 | 1968-05-28 | Fmc Corp | Method of controlling phosphate concentration in sewage treatment systems |
| US3670887A (en) * | 1970-12-14 | 1972-06-20 | Union Carbide Corp | Aerobic digestion of sludge with oxygen |
| US3654147A (en) * | 1971-03-16 | 1972-04-04 | Biospherics Inc | Nitrate removal from sewage |
| US3660277A (en) * | 1971-05-17 | 1972-05-02 | Union Carbide Corp | Oxygenation-ozonation of bod-containing water |
-
1975
- 1975-10-28 US US05/626,459 patent/US4042493A/en not_active Expired - Lifetime
-
1976
- 1976-10-05 ZA ZA765966A patent/ZA765966B/xx unknown
- 1976-10-20 CA CA263,772A patent/CA1072224A/en not_active Expired
- 1976-10-27 IN IN1951/CAL/76A patent/IN145560B/en unknown
- 1976-10-27 IT IT5191576A patent/IT1066302B/it active
- 1976-10-27 NL NLAANVRAGE7611913,A patent/NL185836C/xx not_active IP Right Cessation
- 1976-10-27 BE BE171850A patent/BE847702A/xx not_active IP Right Cessation
- 1976-10-27 BR BR7607195A patent/BR7607195A/pt unknown
- 1976-10-27 TR TR1921776A patent/TR19217A/xx unknown
- 1976-10-27 GB GB4456276A patent/GB1540469A/en not_active Expired
- 1976-10-27 FI FI763060A patent/FI65764C/fi not_active IP Right Cessation
- 1976-10-27 JP JP12841376A patent/JPS5255258A/ja active Granted
- 1976-10-27 AR AR26523876A patent/AR217812A1/es active
- 1976-10-27 IL IL5078176A patent/IL50781A/xx unknown
- 1976-10-27 IE IE2380/76A patent/IE44203B1/en unknown
- 1976-10-27 DK DK486276A patent/DK486276A/da not_active Application Discontinuation
- 1976-10-27 DE DE2648797A patent/DE2648797C3/de not_active Expired
- 1976-10-27 NO NO763670A patent/NO148918C/no unknown
- 1976-10-27 CH CH1354576A patent/CH617412A5/fr not_active IP Right Cessation
- 1976-10-27 AU AU19055/76A patent/AU500264B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2648797B2 (de) | 1978-03-30 |
| DK486276A (da) | 1977-04-29 |
| FI763060A7 (OSRAM) | 1977-04-29 |
| US4042493A (en) | 1977-08-16 |
| IN145560B (OSRAM) | 1985-01-05 |
| AR217812A1 (es) | 1980-04-30 |
| BR7607195A (pt) | 1977-09-13 |
| NL185836C (nl) | 1990-08-01 |
| IL50781A (en) | 1979-10-31 |
| FI65764C (fi) | 1984-07-10 |
| AU1905576A (en) | 1978-05-04 |
| GB1540469A (en) | 1979-02-14 |
| AU500264B2 (en) | 1979-05-17 |
| CA1072224A (en) | 1980-02-19 |
| JPS5255258A (en) | 1977-05-06 |
| JPS5438823B2 (OSRAM) | 1979-11-24 |
| IL50781A0 (en) | 1976-12-31 |
| ZA765966B (en) | 1977-09-28 |
| IT1066302B (it) | 1985-03-04 |
| IE44203B1 (en) | 1981-09-09 |
| CH617412A5 (OSRAM) | 1980-05-30 |
| NO148918C (no) | 1984-01-11 |
| NL7611913A (nl) | 1977-05-02 |
| NL185836B (nl) | 1990-03-01 |
| NO763670L (OSRAM) | 1977-04-29 |
| TR19217A (tr) | 1978-06-07 |
| NO148918B (no) | 1983-10-03 |
| FI65764B (fi) | 1984-03-30 |
| BE847702A (fr) | 1977-04-27 |
| IE44203L (en) | 1977-04-28 |
| DE2648797A1 (de) | 1977-05-12 |
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