JPS6312680B2 - - Google Patents

Info

Publication number
JPS6312680B2
JPS6312680B2 JP14035980A JP14035980A JPS6312680B2 JP S6312680 B2 JPS6312680 B2 JP S6312680B2 JP 14035980 A JP14035980 A JP 14035980A JP 14035980 A JP14035980 A JP 14035980A JP S6312680 B2 JPS6312680 B2 JP S6312680B2
Authority
JP
Japan
Prior art keywords
ratio
bod
idt
treatment
oxidizing
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
Application number
JP14035980A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57113893A (en
Inventor
Shii Kuuan Chen Mitsusheru
Josefu Guresukobitsuchi Yuujin
Ruisu Supekutaa Maasharu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22176790&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS6312680(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of JPS57113893A publication Critical patent/JPS57113893A/ja
Publication of JPS6312680B2 publication Critical patent/JPS6312680B2/ja
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1205Particular type of activated sludge processes
    • C02F3/1215Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/006Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/308Biological phosphorus removal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00Liquid purification or separation
    • Y10S210/902Materials removed
    • Y10S210/903Nitrogenous
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00Liquid purification or separation
    • Y10S210/902Materials removed
    • Y10S210/906Phosphorus containing

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Removal Of Specific Substances (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Electric Clocks (AREA)
  • Activated Sludge Processes (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • Fats And Perfumes (AREA)
JP14035980A 1979-10-09 1980-10-07 Method of improving activated biomass Granted JPS57113893A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/083,196 US4271026A (en) 1979-10-09 1979-10-09 Control of activated sludge wastewater treating process for enhanced phosphorous removal

Publications (2)

Publication Number Publication Date
JPS57113893A JPS57113893A (en) 1982-07-15
JPS6312680B2 true JPS6312680B2 (enExample) 1988-03-22

Family

ID=22176790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14035980A Granted JPS57113893A (en) 1979-10-09 1980-10-07 Method of improving activated biomass

Country Status (13)

Country Link
US (1) US4271026A (enExample)
EP (1) EP0026938B1 (enExample)
JP (1) JPS57113893A (enExample)
AT (1) ATE4045T1 (enExample)
AU (1) AU531468B2 (enExample)
CA (1) CA1143486A (enExample)
DE (1) DE3064050D1 (enExample)
DK (1) DK421580A (enExample)
ES (1) ES495736A0 (enExample)
FI (1) FI803148L (enExample)
GR (1) GR70762B (enExample)
IL (1) IL61159A (enExample)
ZA (1) ZA806238B (enExample)

Families Citing this family (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353800A (en) * 1980-08-25 1982-10-12 Ferdinand Besik Method and an apparatus for biological treatment of waste waters
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
US4421648A (en) * 1981-06-01 1983-12-20 Ferdinand Besik Apparatus and a method for biological treatment of waste waters
US4731185A (en) * 1981-07-13 1988-03-15 Air Products And Chemicals, Inc. Biological wastewater treating system
JPS58139791A (ja) * 1982-02-12 1983-08-19 Ebara Infilco Co Ltd 有機性廃液の処理法
NL8201293A (nl) * 1982-03-29 1983-10-17 Gist Brocades Nv Fluid-bed reactor voor het zuiveren van afvalwater.
ATE22276T1 (de) * 1982-07-21 1986-10-15 Air Prod & Chem Verfahren fuer die biologische behandlung von abwasser.
US4488968A (en) * 1983-03-07 1984-12-18 Air Products And Chemicals, Inc. Removal of phosphates and BOD from wastewaters
US4488967A (en) * 1983-03-07 1984-12-18 Air Products And Chemicals, Inc. Treatment of wastewater containing phosphorus compounds
GB2155003B (en) * 1984-01-20 1987-12-31 Nishihara Env San Res Co Ltd Activated sludge method
US4650585A (en) * 1984-04-17 1987-03-17 Air Products And Chemicals, Inc. Method for minimizing diurnal swing in phosphorus content of effluent streams from wastewater treating plants
US4552663A (en) * 1984-07-31 1985-11-12 Air Products And Chemicals, Inc. Process for the removal of ammoniacal nitrogen in the BOD sorption zone of a wastewater treatment plant
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
DE3644770C1 (de) * 1986-12-30 1988-06-01 Linde Ag Verfahren zur Reinigung phosphathaltiger Abwaesser mittels biologischer Phosphorelimination sowie Anlage zur Durchfuehrung dieses Verfahrens
US4846965A (en) * 1987-09-14 1989-07-11 Clifft Ricky C Oxygen controlling wastewater treatment system
US4898672A (en) * 1987-09-14 1990-02-06 Clifft Ricky C Oxygen controlling wastewater treatment method
FR2621136A1 (enExample) * 1987-09-24 1989-03-31 Lyonnaise Eaux
US5013441A (en) * 1988-07-20 1991-05-07 Goronszy Mervyn C Biological nutrient removal with sludge bulking control in a batch activated sludge system
US4919815A (en) * 1989-02-06 1990-04-24 Zimpro/Passavant Inc. Two-stage anaerobic/aerobic treatment process
FR2667057B1 (fr) * 1990-09-25 1993-07-09 Degremont Reacteur perfectionne pour le traitement biologique des eaux residuaires.
IT1249625B (it) * 1991-06-10 1995-03-09 Enea Procedimento per il trattamento depurativo delle acque di scarico municipali, e impianto che utilizza il detto procedimento
US5182021A (en) * 1991-12-16 1993-01-26 Lehigh University Biological process for enhanced removal of ammonia, nitrite, nitrate, and phosphate from wastewater
US5288405A (en) * 1993-01-27 1994-02-22 Piedmont Olsen Hensley, Inc. Wastewater treatment with enhanced biological phosphorus removal and related purification processes
US5380438A (en) * 1993-08-17 1995-01-10 City Of Atlanta Treatment of wastewater through enhanced biological phosphorus removal
US5702499A (en) * 1994-01-18 1997-12-30 Sim Associates Waste conversion by liquid thermophilic aerobic digestion
EP0952885B1 (en) 1996-12-20 2010-09-22 Siemens Water Technologies Corp. Scouring method
US6096214A (en) 1997-12-01 2000-08-01 Freese And Nichols, Inc. Process for applying alternating anaerobic contact processing for the treatment of wastewater
AU2003236421B2 (en) * 1998-03-04 2006-12-14 Mikkel G. Mandt Surge Anoxic Mix Sequencing Batch Reactor Systems
NZ506595A (en) * 1998-03-04 2003-09-26 Mikkel G A method for treating waste water to reduce its solid content, biological oxygen demand, and nitrogenous content
US6190554B1 (en) * 1998-03-04 2001-02-20 Mikkel G. Mandt Surge anoxic mix sequencing batch reactor systems
JP3601976B2 (ja) * 1998-06-16 2004-12-15 シャープ株式会社 排水処理方法および排水処理装置
US8518704B2 (en) * 1999-08-03 2013-08-27 Advanced Micro Devices, Inc. System and method for monitoring and/or controlling attributes of multiple chemical mixtures with a single sensor
US6592757B2 (en) * 2000-02-01 2003-07-15 O'brien & Gere Engineers, Inc. Selector contact stabilization process and apparatus for wastewater treatment
US6565750B2 (en) 2000-08-31 2003-05-20 O'brien & Gere Engineers, Inc. Trickling filter system for biological nutrient removal
AUPR421501A0 (en) * 2001-04-04 2001-05-03 U.S. Filter Wastewater Group, Inc. Potting method
AUPR692401A0 (en) 2001-08-09 2001-08-30 U.S. Filter Wastewater Group, Inc. Method of cleaning membrane modules
US6712970B1 (en) * 2002-01-11 2004-03-30 Enviroquip, Inc. Sewage treatment process with phosphorus removal
US7247238B2 (en) 2002-02-12 2007-07-24 Siemens Water Technologies Corp. Poly(ethylene chlorotrifluoroethylene) membranes
AUPS300602A0 (en) 2002-06-18 2002-07-11 U.S. Filter Wastewater Group, Inc. Methods of minimising the effect of integrity loss in hollow fibre membrane modules
US6872313B1 (en) * 2002-09-23 2005-03-29 Agrimond Usa Corporation Domestic wastewater treatment system
JP4282598B2 (ja) 2002-10-10 2009-06-24 シーメンス・ウォーター・テクノロジーズ・コーポレーション 濾過装置及び該濾過装置を洗浄する方法
AU2002953111A0 (en) 2002-12-05 2002-12-19 U. S. Filter Wastewater Group, Inc. Mixing chamber
CN103285737B (zh) * 2003-08-29 2016-01-13 伊沃夸水处理技术有限责任公司 反洗
WO2005046849A1 (en) * 2003-11-14 2005-05-26 U.S. Filter Wastewater Group, Inc. Improved module cleaning method
WO2005092799A1 (en) * 2004-03-26 2005-10-06 U.S. Filter Wastewater Group, Inc. Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis
WO2005107929A2 (en) 2004-04-22 2005-11-17 Siemens Water Technologies Corp. Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials
EP1789164B1 (en) 2004-08-20 2013-07-03 Siemens Industry, Inc. Square mbr manifolding system
US8790515B2 (en) 2004-09-07 2014-07-29 Evoqua Water Technologies Llc Reduction of backwash liquid waste
WO2006029456A1 (en) * 2004-09-14 2006-03-23 Siemens Water Technologies Corp. Methods and apparatus for removing solids from a membrane module
NZ553771A (en) 2004-09-15 2010-11-26 Siemens Water Tech Corp Continuously variable aeration of membrane filtration system and flow control device when used in such application
US7172699B1 (en) 2004-10-13 2007-02-06 Eimco Water Technologies Llc Energy efficient wastewater treatment for nitrogen and phosphorus removal
US7591950B2 (en) 2004-11-02 2009-09-22 Siemens Water Technologies Corp. Submerged cross-flow filtration
JP2008525167A (ja) * 2004-12-24 2008-07-17 シーメンス・ウォーター・テクノロジーズ・コーポレーション 簡易ガス洗浄方法および当該技術分野の装置
SG2014010789A (en) * 2004-12-24 2014-06-27 Siemens Industry Inc Cleaning in membrane filtration systems
US9675938B2 (en) 2005-04-29 2017-06-13 Evoqua Water Technologies Llc Chemical clean for membrane filter
US7344643B2 (en) * 2005-06-30 2008-03-18 Siemens Water Technologies Holding Corp. Process to enhance phosphorus removal for activated sludge wastewater treatment systems
NZ565795A (en) 2005-08-22 2011-03-31 Siemens Water Tech Corp An assembly for water filtration using a tube manifold to minimise backwash
EP1928794A4 (en) * 2005-09-02 2012-05-09 Siemens Industry Inc ABSORBENT OF INERT SOLIDS FROM A WASTE TREATMENT PROCESS WITH LOW BELLY MUD
US7563363B2 (en) 2005-10-05 2009-07-21 Siemens Water Technologies Corp. System for treating wastewater
WO2007044415A2 (en) 2005-10-05 2007-04-19 Siemens Water Technologies Corp. Method and apparatus for treating wastewater
US7833415B2 (en) * 2005-10-26 2010-11-16 D.C. Water & Sewer Authority Method for treating raw sludge including a simultaneous or pulsed aerobic/anoxic digestion process
CA2629709A1 (en) * 2005-12-09 2007-06-14 Siemens Water Technologies Corp. Reduced backwash volume process
NZ569210A (en) * 2006-01-12 2012-03-30 Siemens Water Tech Corp Improved operating strategies in filtration processes
US7455765B2 (en) 2006-01-25 2008-11-25 Siemens Water Technologies Corp. Wastewater treatment system and method
US7473364B2 (en) * 2006-03-07 2009-01-06 Siemens Water Technologies Corp. Multivalent metal ion management for low sludge processes
US7569148B2 (en) * 2006-08-23 2009-08-04 Siemens Water Technologies Corp. Continuous membrane filtration and solids reduction
US20090255873A1 (en) * 2006-08-31 2009-10-15 Bruce Gregory Biltoft Low pressure backwash
WO2008051546A2 (en) * 2006-10-24 2008-05-02 Siemens Water Technologies Corp. Infiltration/inflow control for membrane bioreactor
WO2008098309A1 (en) * 2007-02-16 2008-08-21 Siemens Water Technologies Corp. Membrane filtration process and design
CA2682707C (en) * 2007-04-02 2014-07-15 Siemens Water Technologies Corp. Improved infiltration/inflow control for membrane bioreactor
US20100051545A1 (en) * 2007-04-04 2010-03-04 Warren Thomas Johnson Membrane module protection
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
WO2008153818A1 (en) * 2007-05-29 2008-12-18 Siemens Water Technologies Corp. Membrane cleaning with pulsed airlift pump
CN101678283B (zh) * 2007-05-29 2012-09-19 西门子工业公司 使用气升泵的膜清洗
CA2689406A1 (en) * 2007-06-28 2008-12-31 Siemens Water Technologies Corp. Cleaning method for simple filtration systems
WO2009026352A1 (en) * 2007-08-20 2009-02-26 Jon Inman Sattler System and method for processing wastewater
US8623213B2 (en) 2008-03-28 2014-01-07 Siemens Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US8894856B2 (en) * 2008-03-28 2014-11-25 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
EP2331242B1 (en) 2008-07-24 2018-09-05 Evoqua Water Technologies LLC Frame system for membrane filtration modules
AU2009281935A1 (en) * 2008-08-14 2010-02-18 Siemens Industry, Inc. Block configuration for large scale membrane distillation
US8652331B2 (en) * 2008-08-20 2014-02-18 Siemens Water Technologies Llc Membrane system backwash energy efficiency
JP4995215B2 (ja) * 2009-03-23 2012-08-08 前澤工業株式会社 汚水処理設備
WO2010141560A1 (en) * 2009-06-02 2010-12-09 Siemens Water Technologies Corp. Membrane cleaning with pulsed gas slugs and global aeration
AU2010257526A1 (en) 2009-06-11 2012-01-12 Siemens Industry, Inc Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane
WO2011068931A1 (en) * 2009-12-03 2011-06-09 Siemens Industry, Inc. Systems and methods for nutrient removal in biological treatment systems
EP2563501B1 (en) 2010-04-30 2019-05-15 Evoqua Water Technologies LLC Fluid flow distribution device
WO2012024279A1 (en) 2010-08-18 2012-02-23 Siemens Industry, Inc. Contact-stabilization/prime-float hybrid
US9359236B2 (en) 2010-08-18 2016-06-07 Evoqua Water Technologies Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
US9022224B2 (en) 2010-09-24 2015-05-05 Evoqua Water Technologies Llc Fluid control manifold for membrane filtration system
US9908800B2 (en) * 2011-04-14 2018-03-06 Global Water Group, Incorporated System and method for wastewater treatment
KR101964484B1 (ko) 2011-09-30 2019-04-01 에보쿠아 워터 테크놀로지스 엘엘씨 개선된 매니폴드 배열
CA2850522C (en) 2011-09-30 2021-03-16 Evoqua Water Technologies Llc Shut-off valve for isolation of hollow fiber membrane filtration module
US9533261B2 (en) 2012-06-28 2017-01-03 Evoqua Water Technologies Llc Potting method
WO2014052071A1 (en) 2012-09-26 2014-04-03 Evoqua Water Technologies Llc Membrane securement device
US9962865B2 (en) 2012-09-26 2018-05-08 Evoqua Water Technologies Llc Membrane potting methods
EP2900356A1 (en) 2012-09-27 2015-08-05 Evoqua Water Technologies LLC Gas scouring apparatus for immersed membranes
GB2527989B (en) 2013-05-06 2020-04-22 Evoqua Water Tech Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
US10427102B2 (en) 2013-10-02 2019-10-01 Evoqua Water Technologies Llc Method and device for repairing a membrane filtration module
US10322375B2 (en) 2015-07-14 2019-06-18 Evoqua Water Technologies Llc Aeration device for filtration system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730882A (en) * 1972-06-13 1973-05-01 Biospherics Inc Internal precipitation of phosphate in settling zone
US3756946A (en) * 1972-06-13 1973-09-04 Biospherics Inc Sewage treatment process
SU784754A3 (ru) * 1975-06-04 1980-11-30 Юнион Карбид Корпорейшн (Фирма) Способ биохимической очистки сточных вод, содержащих фосфор
US4042493A (en) * 1975-10-28 1977-08-16 Union Carbide Corporation Phosphate removal from BOD-containing wastewater
US4056465A (en) * 1976-04-12 1977-11-01 Air Products And Chemicals, Inc. Production of non-bulking activated sludge
US4162153A (en) * 1976-04-12 1979-07-24 Air Products And Chemicals, Inc. High nitrogen and phosphorous content biomass produced by treatment of a BOD-containing material
DE2641750A1 (de) * 1976-09-16 1978-03-23 Vysoka Skola Chem Tech Verfahren zur reinigung von abwasser mit einem hohen gehalt an organischen stoffen
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

Also Published As

Publication number Publication date
FI803148A7 (fi) 1981-04-10
FI803148L (fi) 1981-04-10
EP0026938B1 (en) 1983-07-06
ATE4045T1 (de) 1983-07-15
IL61159A (en) 1983-07-31
DE3064050D1 (en) 1983-08-11
DK421580A (da) 1981-04-10
ES8107131A1 (es) 1981-09-16
ES495736A0 (es) 1981-09-16
AU531468B2 (en) 1983-08-25
GR70762B (enExample) 1983-03-16
AU6304880A (en) 1981-04-16
CA1143486A (en) 1983-03-22
ZA806238B (en) 1981-09-30
EP0026938A1 (en) 1981-04-15
JPS57113893A (en) 1982-07-15
US4271026A (en) 1981-06-02
IL61159A0 (en) 1980-11-30

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