NO310769B1 - Fremgangsmåte til rensing av sulfidholdig avlöpsvann - Google Patents
Fremgangsmåte til rensing av sulfidholdig avlöpsvann Download PDFInfo
- Publication number
- NO310769B1 NO310769B1 NO19954862A NO954862A NO310769B1 NO 310769 B1 NO310769 B1 NO 310769B1 NO 19954862 A NO19954862 A NO 19954862A NO 954862 A NO954862 A NO 954862A NO 310769 B1 NO310769 B1 NO 310769B1
- Authority
- NO
- Norway
- Prior art keywords
- reactor
- sulfur
- sulphide
- accordance
- sulfide
- Prior art date
Links
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000002351 wastewater Substances 0.000 title claims abstract description 18
- 238000000746 purification Methods 0.000 title description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 63
- 241000894006 Bacteria Species 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 230000003647 oxidation Effects 0.000 claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 13
- 239000012876 carrier material Substances 0.000 claims abstract description 7
- 230000001590 oxidative effect Effects 0.000 claims abstract 2
- 239000011593 sulfur Substances 0.000 claims description 36
- 229910052717 sulfur Inorganic materials 0.000 claims description 36
- 238000004062 sedimentation Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 150000003464 sulfur compounds Chemical class 0.000 claims description 6
- 150000001768 cations Chemical class 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- -1 sulfate or sulfite Chemical class 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910021645 metal ion Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 abstract description 10
- 238000004064 recycling Methods 0.000 abstract 1
- 239000000969 carrier Substances 0.000 description 6
- 239000002028 Biomass Substances 0.000 description 5
- 230000001580 bacterial effect Effects 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 2
- 241000605716 Desulfovibrio Species 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 241000205085 Desulfobacter Species 0.000 description 1
- 241000205145 Desulfobacterium Species 0.000 description 1
- 241000605802 Desulfobulbus Species 0.000 description 1
- 241000605829 Desulfococcus Species 0.000 description 1
- 241000193104 Desulfonema Species 0.000 description 1
- 241000205130 Desulfosarcina Species 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 241000205101 Sulfolobus Species 0.000 description 1
- 241000186423 Thermodesulfobacterium Species 0.000 description 1
- 241000229714 Thermothrix Species 0.000 description 1
- 241000605118 Thiobacillus Species 0.000 description 1
- 241000605261 Thiomicrospira Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
- C01B17/05—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by wet 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
- C02F3/345—Biological treatment of water, waste water, or sewage characterised by the microorganisms used for biological oxidation or reduction of sulfur compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Molecular Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Biological Treatment Of Waste Water (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL9301000A NL9301000A (nl) | 1993-06-10 | 1993-06-10 | Werkwijze voor de zuivering van sulfidehoudend afvalwater. |
| PCT/NL1994/000132 WO1994029227A1 (en) | 1993-06-10 | 1994-06-09 | Process for purifying sulphide-containing waste water |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO954862D0 NO954862D0 (no) | 1995-11-30 |
| NO954862L NO954862L (no) | 1995-12-08 |
| NO310769B1 true NO310769B1 (no) | 2001-08-27 |
Family
ID=19862515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19954862A NO310769B1 (no) | 1993-06-10 | 1995-11-30 | Fremgangsmåte til rensing av sulfidholdig avlöpsvann |
Country Status (22)
| Country | Link |
|---|---|
| US (1) | US5637220A (de) |
| EP (1) | EP0702663B1 (de) |
| JP (1) | JP2693272B2 (de) |
| KR (1) | KR100345996B1 (de) |
| CN (1) | CN1064026C (de) |
| AT (1) | ATE148082T1 (de) |
| AU (1) | AU673753B2 (de) |
| BG (1) | BG61602B1 (de) |
| BR (1) | BR9406771A (de) |
| CA (1) | CA2164090C (de) |
| CZ (1) | CZ285687B6 (de) |
| DE (1) | DE69401586T2 (de) |
| DK (1) | DK0702663T3 (de) |
| ES (1) | ES2096474T3 (de) |
| FI (1) | FI117382B (de) |
| HU (1) | HUT77974A (de) |
| NL (1) | NL9301000A (de) |
| NO (1) | NO310769B1 (de) |
| PL (1) | PL176634B1 (de) |
| RU (1) | RU2109692C1 (de) |
| TW (1) | TW315358B (de) |
| WO (1) | WO1994029227A1 (de) |
Families Citing this family (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997043033A1 (en) * | 1996-05-10 | 1997-11-20 | Paques Bio Systems B.V. | Process for the purification of gases containing hydrogen sulphide |
| EP0819756A1 (de) * | 1996-07-16 | 1998-01-21 | Biostar Development C.V. | Schwefelreduzierendes Bakterium und seine Verwendung in biologischen Entschwefelungsverfahren |
| CA2261882A1 (en) * | 1996-07-29 | 1998-02-05 | Paques Bio Systems B.V. | Biological treatment of spent caustics |
| EP0845288A1 (de) | 1996-11-27 | 1998-06-03 | Thiopaq Sulfur Systems B.V. | Verfahren zur biologischen Entfernung von Sulfiden |
| NL1006339C2 (nl) * | 1997-06-17 | 1998-12-21 | Stork Eng & Contractors Bv | Werkwijze voor het ontzwavelen van afgassen. |
| JP3863995B2 (ja) * | 1998-06-19 | 2006-12-27 | ダイワ工業株式会社 | 脱窒機能を有する水処理装置 |
| KR100284313B1 (ko) * | 1999-08-20 | 2001-03-02 | 이성기 | 난분해 독성화학물질을 분해하는 세균 공동체 이비씨1000 및 이를 이용하여 산업폐수, 폐기물, 토양 등을 오염시키는 난분해 독성화학물질을 생물학적으로 교정하는 방법 |
| US6521201B1 (en) | 2001-02-14 | 2003-02-18 | Uop Llc | Process for recovery of high purity hydrophilic sulfur |
| US6527948B2 (en) * | 2001-03-31 | 2003-03-04 | Council Of Scientific And Industrial Research | Apparatus for purification of waste water and a “RFLR” device for performing the same |
| US6544421B2 (en) * | 2001-03-31 | 2003-04-08 | Council Of Scientific And Industrial Research | Method for purification of waste water and “RFLR” device for performing the same |
| AU2002307808B2 (en) * | 2001-04-30 | 2007-03-22 | Pulles Howard & De Lange Inc. | Treatment of water |
| US6761823B2 (en) * | 2001-05-21 | 2004-07-13 | W. B. Solutions, Inc. | System and method for removing contaminants from water |
| EP1342802A1 (de) * | 2002-03-08 | 2003-09-10 | Paques B.V. | Verfahren zur Rückgewinnung von Elementarschwefel aus Schlämme beinhaltend Metallsulfide und Elementarschwefel |
| US20030209476A1 (en) * | 2002-04-18 | 2003-11-13 | Josse Juan Carlos | Biological fluidized bed apparatus |
| DE10221362C5 (de) * | 2002-05-07 | 2009-05-07 | Friedrich, Michael, Dipl.-Ing. | Verfahren zur Oxidation von in Abwasser gelöstem Sulfid |
| WO2003097541A1 (en) * | 2002-05-17 | 2003-11-27 | Water Research Commission | Treatment of water |
| CN100418614C (zh) | 2003-04-17 | 2008-09-17 | 国际壳牌研究有限公司 | 从气流中脱除h2s和硫醇的方法 |
| WO2005044742A1 (en) * | 2003-11-11 | 2005-05-19 | Paques B.V. | Process for the biological treatment of sulphur salts |
| US20080190844A1 (en) * | 2007-02-13 | 2008-08-14 | Richard Alan Haase | Methods, processes and apparatus for biological purification of a gas, liquid or solid; and hydrocarbon fuel from said processes |
| FI119379B (fi) * | 2007-03-16 | 2008-10-31 | Outotec Oyj | Tapa tehostaa selkeytystä sekoitusreaktorissa ja sekoitusreaktori |
| JP5267190B2 (ja) * | 2008-03-26 | 2013-08-21 | Ｊｆｅスチール株式会社 | 硫黄系ｃｏｄ成分を含有する廃水の処理方法 |
| TWI385126B (zh) * | 2008-12-17 | 2013-02-11 | Univ Nat Kaohsiung 1St Univ Sc | 污泥無害化及安定化之生物處理方法及其裝置 |
| CN102451607B (zh) * | 2010-10-21 | 2016-05-18 | 李红玉 | 一种用于吸收硫化氢的内外双循环反应的方法和装置 |
| JP5923512B2 (ja) * | 2010-12-02 | 2016-05-24 | 香港科技大学Ｔｈｅ Ｈｏｎｇ Ｋｏｎｇ Ｕｎｉｖｅｒｓｉｔｙ ｏｆ Ｓｃｉｅｎｃｅ ａｎｄ Ｔｅｃｈｎｏｌｏｇｙ | 電子伝達体としてイオウ化合物を利用して汚泥産出を最小限にする、生物学的な廃水の処理及び再利用 |
| CN102399721B (zh) * | 2011-10-28 | 2013-02-20 | 中国水产科学研究院南海水产研究所 | 一种海洋硫氧化盐硫杆菌菌株hmgs18及其应用 |
| CN102874770B (zh) * | 2012-10-23 | 2015-05-06 | 刘立文 | 一种利用硫酸钙生产硫酸的方法 |
| CN105683087B (zh) * | 2013-09-26 | 2017-12-19 | 巴格知识产权有限公司 | 用于将硫化物从水溶液中除去的方法 |
| CA2937448C (en) * | 2014-02-03 | 2021-12-21 | Paqell B.V. | A process for the biological conversion of bisulphide into elemental sulphur |
| EP3169633B1 (de) | 2014-07-18 | 2022-07-06 | Water Research Commission | Verfahren zur aufbereitung von sulfathaltigem abwasser |
| DE102014113620A1 (de) * | 2014-09-22 | 2016-03-24 | Ftu Gmbh | Puzzolane zur Abgasreinigung |
| EP3034157A1 (de) | 2015-02-19 | 2016-06-22 | Paqell B.V. | Verfahren zur Behandlung eines Schwefelwasserstoffs und Mercaptanen mit Gas |
| EP3390288A4 (de) * | 2015-12-17 | 2019-07-31 | Uop Llc | Verfahren zur biologischen entfernung von sulfiden aus wasser |
| EP3445725A4 (de) | 2016-04-20 | 2019-11-20 | Uop Llc | Non-stripping-bioreaktor zur biologischen schwefeloxidation aus abwässern |
| CN110392672B (zh) | 2016-12-16 | 2022-05-24 | 巴格知识产权有限公司 | 具有内部固体分离的曝气反应器 |
| US10538444B2 (en) * | 2016-12-21 | 2020-01-21 | Uop Llc | Digestion of elemental sulfur in bioreactor during biological oxidation of sulfide in wastewater and groundwater |
| NO343456B1 (en) * | 2017-01-18 | 2019-03-18 | Waterment As | Apparatus and method for treatment of wet organic matter to produce biogas |
| US11619000B2 (en) | 2017-12-29 | 2023-04-04 | Valmet Technologies Oy | Method and a system for adjusting S/Na-balance of a pulp mill |
| SA119400547B1 (ar) | 2018-03-15 | 2021-12-13 | انديان اويل كوربوريشين ليمتد | نظام حيوي غير عضوي فعال لعلاج تيارات مياه صرف متضمنة كبريتيد ومحتوية على ملوثات أخرى |
| WO2019229167A1 (en) | 2018-06-01 | 2019-12-05 | Paqell B.V. | Process to convert a sulphur compound |
| JP2021531960A (ja) * | 2018-07-19 | 2021-11-25 | ストラ エンソ オーワイジェイ | 工業アルカリストリームの生物学的処理 |
| CN109437397A (zh) * | 2018-11-23 | 2019-03-08 | 河海大学 | 一种具有螺旋斜面结构的一体化移动床生物膜反应器 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588315B2 (ja) * | 1979-03-29 | 1983-02-15 | 三菱重工業株式会社 | ジチオン酸およびポリチオン酸含有廃水の生物学的処理方法 |
| NL8006094A (nl) * | 1980-11-07 | 1982-06-01 | Landbouw Hogeschool | Werkwijze voor het zuiveren van afvalwater en/of afvalwaterslib. |
| US4584271A (en) * | 1983-09-28 | 1986-04-22 | Joy Manufacturing Company | Bacterial regeneration apparatus and process |
| DE3542345A1 (de) * | 1985-11-29 | 1987-06-04 | Imhausen Chemie Gmbh | Verfahren zum entfernen von schwefelwasserstoff aus abgas |
| SE466198B (sv) * | 1986-09-24 | 1992-01-13 | Ac Biotechnics Ab | Foerfarande foer foerbehandling av vatten paa biologisk vaeg i syfte att utfoera avgiftning av svavelfoereningar ur vattnet |
| RU2079450C1 (ru) * | 1990-04-12 | 1997-05-20 | Паквес Б.В. | Способ переработки воды, содержащей соединения серы (варианты) |
| NL9002661A (nl) * | 1990-12-04 | 1992-07-01 | Pacques Bv | Werkwijze voor de verwijdering van h2s uit gas. |
-
1993
- 1993-06-10 NL NL9301000A patent/NL9301000A/nl not_active Application Discontinuation
-
1994
- 1994-06-09 HU HU9503517A patent/HUT77974A/hu unknown
- 1994-06-09 EP EP94917828A patent/EP0702663B1/de not_active Expired - Lifetime
- 1994-06-09 BR BR9406771A patent/BR9406771A/pt not_active IP Right Cessation
- 1994-06-09 KR KR1019950705514A patent/KR100345996B1/ko not_active IP Right Cessation
- 1994-06-09 JP JP7501608A patent/JP2693272B2/ja not_active Expired - Lifetime
- 1994-06-09 WO PCT/NL1994/000132 patent/WO1994029227A1/en active IP Right Grant
- 1994-06-09 CA CA002164090A patent/CA2164090C/en not_active Expired - Lifetime
- 1994-06-09 PL PL94311869A patent/PL176634B1/pl unknown
- 1994-06-09 AT AT94917828T patent/ATE148082T1/de not_active IP Right Cessation
- 1994-06-09 DE DE69401586T patent/DE69401586T2/de not_active Expired - Lifetime
- 1994-06-09 RU RU96100756A patent/RU2109692C1/ru active
- 1994-06-09 AU AU69379/94A patent/AU673753B2/en not_active Ceased
- 1994-06-09 ES ES94917828T patent/ES2096474T3/es not_active Expired - Lifetime
- 1994-06-09 DK DK94917828.9T patent/DK0702663T3/da active
- 1994-06-09 CZ CZ953249A patent/CZ285687B6/cs not_active IP Right Cessation
- 1994-06-09 US US08/556,900 patent/US5637220A/en not_active Expired - Lifetime
- 1994-06-09 CN CN94192415A patent/CN1064026C/zh not_active Expired - Lifetime
- 1994-06-20 TW TW083105567A patent/TW315358B/zh active
-
1995
- 1995-11-30 NO NO19954862A patent/NO310769B1/no not_active IP Right Cessation
- 1995-12-08 BG BG100205A patent/BG61602B1/bg unknown
- 1995-12-08 FI FI955915A patent/FI117382B/fi not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU673753B2 (en) | 1996-11-21 |
| FI117382B (fi) | 2006-09-29 |
| BR9406771A (pt) | 1996-02-27 |
| CA2164090C (en) | 2000-03-28 |
| DE69401586D1 (de) | 1997-03-06 |
| FI955915A (fi) | 1995-12-08 |
| BG61602B1 (bg) | 1998-01-30 |
| EP0702663A1 (de) | 1996-03-27 |
| CZ285687B6 (cs) | 1999-10-13 |
| BG100205A (bg) | 1996-11-29 |
| CA2164090A1 (en) | 1994-12-22 |
| NO954862D0 (no) | 1995-11-30 |
| EP0702663B1 (de) | 1997-01-22 |
| JPH08506271A (ja) | 1996-07-09 |
| NO954862L (no) | 1995-12-08 |
| AU6937994A (en) | 1995-01-03 |
| ES2096474T3 (es) | 1997-03-01 |
| RU2109692C1 (ru) | 1998-04-27 |
| CN1125432A (zh) | 1996-06-26 |
| NL9301000A (nl) | 1995-01-02 |
| DK0702663T3 (da) | 1997-06-30 |
| ATE148082T1 (de) | 1997-02-15 |
| CN1064026C (zh) | 2001-04-04 |
| KR100345996B1 (ko) | 2002-12-11 |
| JP2693272B2 (ja) | 1997-12-24 |
| CZ324995A3 (en) | 1996-04-17 |
| PL176634B1 (pl) | 1999-07-30 |
| DE69401586T2 (de) | 1997-05-22 |
| US5637220A (en) | 1997-06-10 |
| FI955915A0 (fi) | 1995-12-08 |
| WO1994029227A1 (en) | 1994-12-22 |
| HU9503517D0 (en) | 1996-03-28 |
| PL311869A1 (en) | 1996-03-18 |
| HUT77974A (hu) | 1999-01-28 |
| TW315358B (de) | 1997-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |