ES2000542A6 - Procedimiento para la separacion mejorada del liquido clarificador de la biomasa en la purificacion biologica de aguas residuales - Google Patents
Procedimiento para la separacion mejorada del liquido clarificador de la biomasa en la purificacion biologica de aguas residualesInfo
- Publication number
- ES2000542A6 ES2000542A6 ES8600465A ES8600465A ES2000542A6 ES 2000542 A6 ES2000542 A6 ES 2000542A6 ES 8600465 A ES8600465 A ES 8600465A ES 8600465 A ES8600465 A ES 8600465A ES 2000542 A6 ES2000542 A6 ES 2000542A6
- Authority
- ES
- Spain
- Prior art keywords
- materials
- biomass
- magnetically separable
- carriers
- magnetic
- 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
- 239000002028 Biomass Substances 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000000926 separation method Methods 0.000 title abstract 2
- 238000000746 purification Methods 0.000 title 1
- 239000002351 wastewater Substances 0.000 title 1
- 239000000969 carrier Substances 0.000 abstract 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 3
- 229910010272 inorganic material Inorganic materials 0.000 abstract 2
- 239000011147 inorganic material Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000010865 sewage Substances 0.000 abstract 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 1
- 235000013980 iron oxide Nutrition 0.000 abstract 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 abstract 1
- 238000007885 magnetic separation Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0009—Settling tanks making use of electricity or magnetism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/005—Pretreatment specially adapted for magnetic separation
- B03C1/01—Pretreatment specially adapted for magnetic separation by addition of magnetic adjuvants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
- B03C1/031—Component parts; Auxiliary operations
- B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
- B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
- B03C1/14—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with non-movable magnets
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Activated Sludge Processes (AREA)
- Biological Treatment Of Waste Water (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Detergent Compositions (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Processing Of Solid Wastes (AREA)
- Catalysts (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
PROCEDIMIENTO PARA LA SEPARACION MEJORADA DEL LIQUIDO CLARIFICADOR DE LA BIOMASA EN LA PURIFICACION BIOLOGICA DE AGUAS RESIDUALES, EN EL CUAL LAS BIOMASAS SE REUNEN CON SUBSTANCIAS MAGNETICAMENTE SEPARABLES Y A CONTINUACION SE SEPARAN DEL AGUA POR SEDIMENTACION Y/O POR LA INFLUENCIA DE CAMPOS MAGNETICOS.-
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853526183 DE3526183A1 (de) | 1985-07-23 | 1985-07-23 | Verfahren zur verbesserten trennung der klaerfluessigkeit von der biomasse bei der biologischen abwasserreinigung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2000542A6 true ES2000542A6 (es) | 1988-03-01 |
Family
ID=6276429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES8600465A Expired ES2000542A6 (es) | 1985-07-23 | 1986-07-22 | Procedimiento para la separacion mejorada del liquido clarificador de la biomasa en la purificacion biologica de aguas residuales |
Country Status (10)
| Country | Link |
|---|---|
| US (2) | US4735725A (es) |
| EP (1) | EP0210479B1 (es) |
| JP (2) | JPS6257661A (es) |
| AT (1) | ATE76322T1 (es) |
| CA (2) | CA1269493A (es) |
| DE (2) | DE3526183A1 (es) |
| DK (1) | DK167754B1 (es) |
| ES (1) | ES2000542A6 (es) |
| FI (1) | FI93537C (es) |
| NO (1) | NO171157C (es) |
Families Citing this family (56)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6071979A (ja) * | 1983-09-28 | 1985-04-23 | Seiko Epson Corp | アナログ電子時計 |
| DE3526183A1 (de) * | 1985-07-23 | 1987-02-05 | Bayer Ag | Verfahren zur verbesserten trennung der klaerfluessigkeit von der biomasse bei der biologischen abwasserreinigung |
| DE3615103A1 (de) * | 1986-05-03 | 1987-11-05 | Bayer Ag | Verwendung von polymertraegermassen als traeger bei biochmischen umwandlungsprozessen in waessriger phase |
| ATE87886T1 (de) * | 1986-09-16 | 1993-04-15 | Commw Scient Ind Res Org | Abwasserbehandlung. |
| US5151177A (en) * | 1990-05-10 | 1992-09-29 | Darling-Delaware Company, Inc. | Method and apparatus for dissolved air flotation with aeration |
| GB9220269D0 (en) * | 1992-09-25 | 1992-11-11 | Bio Separation Ltd | Separation of heavy metals from aqueous media |
| US5310485A (en) * | 1992-09-30 | 1994-05-10 | Darling-Delaware Company, Inc. | Process for dissolved gas flotation in anaerobic wastewater treatment |
| GB2304301B (en) * | 1995-08-16 | 2000-06-14 | Univ Southampton | Magnetic separation |
| JP3478321B2 (ja) * | 1997-03-14 | 2003-12-15 | 栗田工業株式会社 | 活性汚泥沈降促進剤、およびそれを用いた排水の活性汚泥処理方法 |
| JP3839136B2 (ja) * | 1997-07-02 | 2006-11-01 | 独立行政法人科学技術振興機構 | 微生物固定化磁性担体、その製造方法及び廃水処理方法 |
| US6099738A (en) * | 1997-12-17 | 2000-08-08 | Micromag Corporation | Method and system for removing solutes from a fluid using magnetically conditioned coagulation |
| CN1241843C (zh) * | 1999-02-19 | 2006-02-15 | 科学技术振兴事业团 | 使用磁性污泥的废水处理方法 |
| EP1198423A4 (en) * | 1999-05-24 | 2005-04-06 | Richard G Sheets | REGENERATION OF MATERIALS IN A CLOSED ENVIRONMENT USING CURING WATER |
| NL1013491C2 (nl) * | 1999-11-04 | 2001-05-07 | Paques Water Systems B V | Kringloopzuivering papierindustrie. |
| FR2820733B1 (fr) * | 2001-02-09 | 2003-04-11 | Vivendi Water Systems | Procede et installation d'epaississement des boues issues du traitement d'eau par floculation-decantation a floc leste |
| CN1157344C (zh) * | 2001-04-18 | 2004-07-14 | 中国石油化工股份有限公司 | 一种使用纳米材料碳黑的废水生化处理方法 |
| US7255793B2 (en) * | 2001-05-30 | 2007-08-14 | Cort Steven L | Methods for removing heavy metals from water using chemical precipitation and field separation methods |
| US6896815B2 (en) * | 2001-05-30 | 2005-05-24 | Steven L. Cort | Methods for removing heavy metals from water using chemical precipitation and field separation methods |
| US6936446B2 (en) * | 2002-06-19 | 2005-08-30 | Eliminite, Inc. | Light weight medium for growing microorganisms |
| JP4551650B2 (ja) * | 2003-12-01 | 2010-09-29 | 保藏 酒井 | 生物処理装置 |
| NZ555411A (en) * | 2004-12-15 | 2010-10-29 | Orica Australia Pty Ltd | Ion exchange resin contactor and containment system that operates within a tank |
| US20060175252A1 (en) * | 2005-02-04 | 2006-08-10 | Upendrakumar K C | Two phase anaerobic contact sequencing batch reactor (ACSBR) system for treating wastewater containing simple and complex organic constituents |
| EP1870149A4 (en) * | 2005-04-13 | 2009-01-28 | Hitachi Ltd | WATER FILTRATION / PURIFICATION APPARATUS AND METHOD OF MANUFACTURING THE SAME |
| US7625490B2 (en) * | 2006-09-27 | 2009-12-01 | Cort Steven L | Use of a magnetic separator to biologically clean water |
| US7691269B2 (en) * | 2006-09-27 | 2010-04-06 | Cort Steven L | Method and system for retrofitting an existing water treatment system |
| US7686960B2 (en) * | 2006-09-27 | 2010-03-30 | Cort Steven L | Multistage process for treating water utilizing in one stage magnetic seed to sorb dissolved contaminants, and in another stage utilizing magnetic seed to clarify the water |
| US20080073282A1 (en) * | 2006-09-27 | 2008-03-27 | Cort Steven L | Device and Methods for Shearing Magnetic Floc in a Water Treatment System |
| US20080073283A1 (en) * | 2006-09-27 | 2008-03-27 | Cort Steven L | Magnetic Separator for Water Treatment System |
| US20110036771A1 (en) * | 2007-01-09 | 2011-02-17 | Steven Woodard | Ballasted anaerobic system and method for treating wastewater |
| EP2107947B1 (en) | 2007-01-09 | 2016-03-16 | Evoqua Water Technologies LLC | A system and method for removing dissolved contaminants, particulate contaminants, and oil contaminants from industrial waste water |
| US8470172B2 (en) * | 2007-01-09 | 2013-06-25 | Siemens Industry, Inc. | System for enhancing a wastewater treatment process |
| US20100213123A1 (en) | 2007-01-09 | 2010-08-26 | Marston Peter G | Ballasted sequencing batch reactor system and method for treating wastewater |
| CA2675019C (en) * | 2007-01-09 | 2014-08-05 | Cambridge Water Technology, Inc. | System and method for enhancing an activated sludge process |
| DE102009030712A1 (de) * | 2009-06-26 | 2010-12-30 | Friedrich-Alexander-Universität Erlangen-Nürnberg | Verfahren zur Entnahme von CO2 aus einem Rauch-oder Abgas eines Verbrennungsprozesses |
| US20110017674A1 (en) * | 2009-07-27 | 2011-01-27 | Michael Anthony Schober | Using Magnets or Electromagnets to Move Sewage Sludge |
| DE102010034083A1 (de) * | 2010-08-12 | 2012-02-16 | Süd-Chemie AG | Magnetische Glaspartikel zum Einsatz in Biogasanlagen, Fermentations- und Separationsprozessen |
| BR112013009597B1 (pt) * | 2010-10-22 | 2020-02-04 | Basf Se | poliuretano espessante |
| CN102174253B (zh) * | 2011-01-29 | 2013-03-13 | 浙江省环境保护科学设计研究院 | 一种多孔亲水性脱氮生物载体的制备方法及其用途 |
| EP2683662B1 (en) | 2011-03-11 | 2017-11-15 | Fundació Privada Institut Català de Nanotecnologia | Biogas production |
| CN103212807B (zh) * | 2012-01-19 | 2015-12-02 | 昆山思拓机器有限公司 | 一种用于医用支架激光加工过程的残渣回收方法 |
| WO2013187979A1 (en) | 2012-06-11 | 2013-12-19 | Siemens Water Technologies Llc | Treatment using fixed film processes and ballasted settling |
| AU2013323431B2 (en) | 2012-09-26 | 2017-10-12 | Evoqua Water Technologies Llc | System for measuring the concentration of magnetic ballast in a slurry |
| PL2909147T3 (pl) * | 2012-10-22 | 2019-05-31 | Evoqua Water Tech Llc | Układy przelewowe do ścieków i sposoby ich zastosowania |
| CN110372086B (zh) * | 2013-10-22 | 2022-12-06 | 那沃达有限责任公司 | 使用天然产生的生物生长培养基减少被污染流体中的物质 |
| AU2015264014B2 (en) * | 2014-05-21 | 2018-09-06 | Nuvoda Llc | Biofilm media, treatment system and method of treatment |
| CN105000763A (zh) * | 2015-06-22 | 2015-10-28 | 张萍 | 污泥综合处理方法 |
| CN105597637B (zh) * | 2015-12-21 | 2017-06-13 | 广西壮族自治区环境保护科学研究院 | 一种磁纳米颗粒的制备方法 |
| CN108033556B (zh) * | 2017-12-14 | 2023-10-17 | 盐城工学院 | 厌氧反应器 |
| CN109179903A (zh) * | 2018-10-18 | 2019-01-11 | 湖南新九方科技有限公司 | 一种农村生活污水处理装置 |
| CN109485145A (zh) * | 2018-12-28 | 2019-03-19 | 大连海事大学 | 磁化加载活性污泥耦合一体化强化含磷污水处理系统及其处理方法 |
| ES2796998A1 (es) * | 2019-05-31 | 2020-11-30 | Univ Madrid Autonoma | Procedimiento para la separación de microplásticos de matrices acuosas |
| CN110127860B (zh) * | 2019-06-11 | 2021-07-30 | 南京大学 | 一种新型水处理用生物磁性悬浮填料的制备方法及设备 |
| CN110386724A (zh) * | 2019-07-19 | 2019-10-29 | 青岛思普润水处理股份有限公司 | 一种基于mbbr与磁分离的污水全流程处理系统与方法 |
| CN110723808B (zh) * | 2019-09-30 | 2022-07-22 | 江苏大学 | 一种基于珊瑚砂的磁性生物膜反应器 |
| US12528089B2 (en) * | 2022-01-27 | 2026-01-20 | Captoplastic, S.L. | Method for the regeneration of the magnetic material used for the magnetic removal of microplastics from aqueous matrices |
| CN119461661B (zh) * | 2024-10-29 | 2025-11-18 | 水艺环保集团股份有限公司 | 一种基于铁基磁性生物碳载体的生物强化污水处理装置 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3351203A (en) * | 1965-08-17 | 1967-11-07 | Gen Electric | Separation apparatus and method for its operation |
| US3697420A (en) * | 1968-03-19 | 1972-10-10 | Donald Stapf Blaisdell | Method and apparatus for treatment of aqueous liquor |
| US3951799A (en) * | 1970-05-04 | 1976-04-20 | Commonwealth Scientific And Industrial Research Organization | Filtration process |
| US4152210A (en) * | 1971-08-27 | 1979-05-01 | Beecham Group Limited | Biologically active materials attached to a ferromagnetic support |
| JPS5247060B2 (es) * | 1972-02-07 | 1977-11-30 | ||
| JPS5342399B2 (es) * | 1973-06-15 | 1978-11-10 | ||
| US4115534A (en) * | 1976-08-19 | 1978-09-19 | Minnesota Mining And Manufacturing Company | In vitro diagnostic test |
| US4167479A (en) * | 1976-10-08 | 1979-09-11 | Ferdinand Besik | Process for purifying waste waters |
| US4200524A (en) * | 1978-10-25 | 1980-04-29 | Biospherics Incorporated | Bio-surface separation process |
| JPS57135091A (en) * | 1981-02-13 | 1982-08-20 | Akitane Kitajima | Separation of active sludge from purified water by use of magnetic force |
| JPS5966395A (ja) * | 1982-10-06 | 1984-04-14 | Seishin Sangyo Kk | 廃水処理における懸濁物の分離方法 |
| DE3402698A1 (de) * | 1984-01-26 | 1985-08-08 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von fuellstoffhaltigen polyurethan (harnstoff)-massen, fuellstoffhaltige polyurethan(harnstoff)-massen und ihre verwendung |
| DE3402697A1 (de) * | 1984-01-26 | 1985-08-01 | Bayer Ag, 5090 Leverkusen | Verwendung von hydrophilen, hochgefuellten polyurethanmassen zur biologischen abwasserreinigung |
| DE3526183A1 (de) * | 1985-07-23 | 1987-02-05 | Bayer Ag | Verfahren zur verbesserten trennung der klaerfluessigkeit von der biomasse bei der biologischen abwasserreinigung |
-
1985
- 1985-07-23 DE DE19853526183 patent/DE3526183A1/de not_active Withdrawn
-
1986
- 1986-07-08 AT AT86109280T patent/ATE76322T1/de not_active IP Right Cessation
- 1986-07-08 EP EP86109280A patent/EP0210479B1/de not_active Expired - Lifetime
- 1986-07-08 DE DE8686109280T patent/DE3685379D1/de not_active Expired - Lifetime
- 1986-07-10 NO NO862798A patent/NO171157C/no unknown
- 1986-07-18 US US06/886,853 patent/US4735725A/en not_active Expired - Fee Related
- 1986-07-21 FI FI862998A patent/FI93537C/fi not_active IP Right Cessation
- 1986-07-22 JP JP61170971A patent/JPS6257661A/ja active Granted
- 1986-07-22 CA CA000514397A patent/CA1269493A/en not_active Expired - Lifetime
- 1986-07-22 JP JP61170970A patent/JPS6230597A/ja active Pending
- 1986-07-22 ES ES8600465A patent/ES2000542A6/es not_active Expired
- 1986-07-22 CA CA000514396A patent/CA1286039C/en not_active Expired - Lifetime
- 1986-07-22 DK DK348086A patent/DK167754B1/da not_active IP Right Cessation
-
1989
- 1989-12-26 US US07/457,205 patent/US5000853A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| NO862798D0 (no) | 1986-07-10 |
| DE3526183A1 (de) | 1987-02-05 |
| FI862998A0 (fi) | 1986-07-21 |
| DK167754B1 (da) | 1993-12-13 |
| JPH0376185B2 (es) | 1991-12-04 |
| EP0210479A3 (en) | 1987-10-14 |
| DE3685379D1 (de) | 1992-06-25 |
| US5000853A (en) | 1991-03-19 |
| FI862998L (fi) | 1987-01-24 |
| NO862798L (no) | 1987-01-26 |
| DK348086D0 (da) | 1986-07-22 |
| EP0210479B1 (de) | 1992-05-20 |
| CA1286039C (en) | 1991-07-09 |
| NO171157C (no) | 1993-02-03 |
| JPS6230597A (ja) | 1987-02-09 |
| NO171157B (no) | 1992-10-26 |
| FI93537C (fi) | 1995-04-25 |
| US4735725A (en) | 1988-04-05 |
| ATE76322T1 (de) | 1992-06-15 |
| FI93537B (fi) | 1995-01-13 |
| JPS6257661A (ja) | 1987-03-13 |
| DK348086A (da) | 1987-01-24 |
| CA1269493A (en) | 1990-05-22 |
| EP0210479A2 (de) | 1987-02-04 |
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