FI803148L - Kontroll av aktivslambehandlingsprocess av avloppsvatten foer att befraemja fosforreduktion - Google Patents

Kontroll av aktivslambehandlingsprocess av avloppsvatten foer att befraemja fosforreduktion

Info

Publication number
FI803148L
FI803148L FI803148A FI803148A FI803148L FI 803148 L FI803148 L FI 803148L FI 803148 A FI803148 A FI 803148A FI 803148 A FI803148 A FI 803148A FI 803148 L FI803148 L FI 803148L
Authority
FI
Finland
Prior art keywords
fosforreduktion
befraemja
aktivslambehandlingsprocess
avloppsvatten
control
Prior art date
Application number
FI803148A
Other languages
English (en)
Finnish (fi)
Other versions
FI803148A7 (fi
Inventor
Michael S Chen
Eugene J Greskovich
Marshall L Spector
Original Assignee
Air Prod & Chem
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=FI803148(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Air Prod & Chem filed Critical Air Prod & Chem
Publication of FI803148A7 publication Critical patent/FI803148A7/fi
Publication of FI803148L publication Critical patent/FI803148L/fi

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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/006—Water 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
    • 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
    • C02F3/308—Biological phosphorus removal
    • 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
    • Y10S210/903—Nitrogenous
    • 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)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (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)
  • Saccharide Compounds (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • Fats And Perfumes (AREA)
  • Activated Sludge Processes (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Electric Clocks (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
FI803148A 1979-10-09 1980-10-03 Kontroll av aktivslambehandlingsprocess av avloppsvatten foer att befraemja fosforreduktion FI803148L (fi)

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
FI803148A7 FI803148A7 (fi) 1981-04-10
FI803148L true FI803148L (fi) 1981-04-10

Family

ID=22176790

Family Applications (1)

Application Number Title Priority Date Filing Date
FI803148A FI803148L (fi) 1979-10-09 1980-10-03 Kontroll av aktivslambehandlingsprocess av avloppsvatten foer att befraemja fosforreduktion

Country Status (13)

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

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.
DE3273348D1 (en) * 1982-07-21 1986-10-23 Air Prod & Chem Biological wastewater treating system
US4488967A (en) * 1983-03-07 1984-12-18 Air Products And Chemicals, Inc. Treatment of wastewater containing phosphorus compounds
US4488968A (en) * 1983-03-07 1984-12-18 Air Products And Chemicals, Inc. Removal of phosphates and BOD from wastewaters
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
US4898672A (en) * 1987-09-14 1990-02-06 Clifft Ricky C Oxygen controlling wastewater treatment method
US4846965A (en) * 1987-09-14 1989-07-11 Clifft Ricky C Oxygen controlling wastewater treatment system
FR2621136A1 (cs) * 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
KR20000069628A (ko) 1996-12-20 2000-11-25 브라이언 디어 세척 방법
US6096214A (en) 1997-12-01 2000-08-01 Freese And Nichols, Inc. Process for applying alternating anaerobic contact processing for the treatment of wastewater
US6190554B1 (en) * 1998-03-04 2001-02-20 Mikkel G. Mandt Surge anoxic mix sequencing batch reactor systems
AU2003236421B2 (en) * 1998-03-04 2006-12-14 Mikkel G. Mandt Surge Anoxic Mix Sequencing Batch Reactor Systems
KR100753455B1 (ko) * 1998-03-04 2007-08-31 만트, 미켈 지. 서지 무산소 혼합의 연속 배치 반응기 시스템
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
US7938966B2 (en) 2002-10-10 2011-05-10 Siemens Water Technologies Corp. Backwash method
AU2002953111A0 (en) 2002-12-05 2002-12-19 U. S. Filter Wastewater Group, Inc. Mixing chamber
WO2005021140A1 (en) * 2003-08-29 2005-03-10 U.S. Filter Wastewater Group, Inc. Backwash
ATE549075T1 (de) * 2003-11-14 2012-03-15 Siemens Industry Inc Verbessertes modulreinigungsverfahren
US8758621B2 (en) * 2004-03-26 2014-06-24 Evoqua Water Technologies Llc 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
AU2005282211B2 (en) 2004-09-07 2011-04-21 Evoqua Water Technologies Llc Reduction of backwash liquid waste
EP1799334B1 (en) * 2004-09-14 2013-12-11 Siemens Water Technologies LLC Methods and apparatus for removing solids from a membrane module
CN100548452C (zh) 2004-09-15 2009-10-14 西门子水技术公司 一种薄膜过滤系统以及控制薄膜过滤系统中积垢的方法
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
AU2005318930B2 (en) * 2004-12-24 2010-06-03 Evoqua Water Technologies Llc Cleaning in membrane filtration systems
NZ562786A (en) 2005-04-29 2010-10-29 Siemens Water Tech Corp 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
SG164499A1 (en) 2005-08-22 2010-09-29 Siemens Water Tech Corp An assembly for water filtration using a tube manifold to minimise backwash
WO2007028149A2 (en) * 2005-09-02 2007-03-08 Siemens Water Technologies Corp. Screening of inert solids from a low-yield wastewater treatment process
US20070138090A1 (en) 2005-10-05 2007-06-21 Jordan Edward J Method and apparatus for treating wastewater
US7563363B2 (en) 2005-10-05 2009-07-21 Siemens Water Technologies Corp. System 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
US20080257822A1 (en) * 2005-12-09 2008-10-23 Warren Thomas Johnson Reduced Backwash Volume Process
SG168522A1 (en) * 2006-01-12 2011-02-28 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
WO2007103499A2 (en) * 2006-03-07 2007-09-13 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
NZ574640A (en) * 2006-08-31 2011-12-22 Siemens Water Tech Corp Method of backwashing membrane filtration system with gas from source used to scour or aerate membrane
WO2008051546A2 (en) * 2006-10-24 2008-05-02 Siemens Water Technologies Corp. Infiltration/inflow control for membrane bioreactor
AU2008215180A1 (en) * 2007-02-16 2008-08-21 Siemens Industry, Inc. Membrane filtration process and design
CA2682707C (en) * 2007-04-02 2014-07-15 Siemens Water Technologies Corp. Improved infiltration/inflow control for membrane bioreactor
CN101652169A (zh) * 2007-04-04 2010-02-17 西门子水处理技术公司 膜组件的保护
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
JP2010527773A (ja) * 2007-05-29 2010-08-19 シーメンス ウォーター テクノロジース コーポレイション エアリフトポンプを用いた膜洗浄
ES2384694T3 (es) 2007-05-29 2012-07-11 Siemens Industry, Inc. Limpieza de membranas con bomba impulsada por aire
JP2010531218A (ja) * 2007-06-28 2010-09-24 シーメンス ウォーター テクノロジース コーポレイション 単純な濾過システム用の洗浄方法
US20090050561A1 (en) * 2007-08-20 2009-02-26 Jon Inman Sattler System and method for processing wastewater
US8894856B2 (en) 2008-03-28 2014-11-25 Evoqua Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US8623213B2 (en) * 2008-03-28 2014-01-07 Siemens Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
CN102112213B (zh) 2008-07-24 2016-08-03 伊沃夸水处理技术有限责任公司 用于膜过滤模块的框架系统
AU2009281935A1 (en) * 2008-08-14 2010-02-18 Siemens Industry, Inc. Block configuration for large scale membrane distillation
KR20110044312A (ko) * 2008-08-20 2011-04-28 지멘스 워터 테크놀로지스 코포레이션 멤브레인 시스템의 향상된 역세척 에너지 효율
JP4995215B2 (ja) * 2009-03-23 2012-08-08 前澤工業株式会社 汚水処理設備
SG176298A1 (en) * 2009-06-02 2012-01-30 Siemens Industry Inc 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
US8685247B2 (en) * 2009-12-03 2014-04-01 Evoqua Water Technologies Llc Systems and methods for nutrient removal in biological treatment systems
EP2560922A4 (en) 2010-04-21 2015-10-07 Evoqua Water Technologies Pte Ltd METHOD AND SYSTEMS FOR WASTEWATER PROCESSING
EP2563501B1 (en) 2010-04-30 2019-05-15 Evoqua Water Technologies LLC Fluid flow distribution device
US9359236B2 (en) 2010-08-18 2016-06-07 Evoqua Water Technologies Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
WO2012024279A1 (en) 2010-08-18 2012-02-23 Siemens Industry, Inc. Contact-stabilization/prime-float hybrid
WO2012040412A1 (en) 2010-09-24 2012-03-29 Siemens Industry, Inc. 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
CA2850522C (en) 2011-09-30 2021-03-16 Evoqua Water Technologies Llc Shut-off valve for isolation of hollow fiber membrane filtration module
AU2013200833B2 (en) 2011-09-30 2015-09-17 Evoqua Water Technologies Llc Improved manifold arrangement
US9533261B2 (en) 2012-06-28 2017-01-03 Evoqua Water Technologies Llc Potting method
CN104684631A (zh) 2012-09-26 2015-06-03 伊沃夸水处理技术有限责任公司 膜固定设备
AU2013231145B2 (en) 2012-09-26 2017-08-17 Evoqua Water Technologies Llc Membrane potting methods
KR20150059788A (ko) 2012-09-27 2015-06-02 에보쿠아 워터 테크놀로지스 엘엘씨 침지된 막을 위한 가스 스코어링 장치
GB2527989B (en) 2013-05-06 2020-04-22 Evoqua Water Tech Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
EP3052221B1 (en) 2013-10-02 2022-12-14 Rohm & Haas Electronic Materials Singapore Pte. Ltd Device for repairing a membrane filtration module
EP3322511B1 (en) 2015-07-14 2022-09-07 Rohm & Haas Electronic Materials Singapore Pte. Ltd Aeration device for filtration system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756946A (en) * 1972-06-13 1973-09-04 Biospherics Inc Sewage treatment process
US3730882A (en) * 1972-06-13 1973-05-01 Biospherics Inc Internal precipitation of phosphate in settling zone
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
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
US4056465A (en) * 1976-04-12 1977-11-01 Air Products And Chemicals, Inc. Production of non-bulking activated sludge
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
EP0026938A1 (en) 1981-04-15
EP0026938B1 (en) 1983-07-06
IL61159A0 (en) 1980-11-30
AU6304880A (en) 1981-04-16
CA1143486A (en) 1983-03-22
JPS57113893A (en) 1982-07-15
DE3064050D1 (en) 1983-08-11
JPS6312680B2 (cs) 1988-03-22
ZA806238B (en) 1981-09-30
FI803148A7 (fi) 1981-04-10
ATE4045T1 (de) 1983-07-15
ES8107131A1 (es) 1981-09-16
DK421580A (da) 1981-04-10
AU531468B2 (en) 1983-08-25
GR70762B (cs) 1983-03-16
ES495736A0 (es) 1981-09-16
IL61159A (en) 1983-07-31
US4271026A (en) 1981-06-02

Similar Documents

Publication Publication Date Title
FI803148L (fi) Kontroll av aktivslambehandlingsprocess av avloppsvatten foer att befraemja fosforreduktion
HK38082A (en) Method of treating waste water and sludge product thereof
SE7907773L (sv) Forfarande for forbettrat utnyttjande av cellulas
AU3619884A (en) Non-expansive,rapid setting cement
EP0132609A3 (en) Biological wastewater treating system
ATE4057T1 (de) Verfahren zur herstellung von immobilisierten mikroorganismen.
IE830992L (en) Process for producing ribavirin
DE3061640D1 (en) Process for reabsorption and retention of phosphorus by activated biomass
KR920008193A (ko) 카르바스틴의 제조방법
DE3770952D1 (de) Verfahren zur herstellung von hydroxylaminen.
KR920701455A (ko) 발효에 의한 2-(4-히드록시페녹시)프로피온산의 제조 방법
ATE21117T1 (de) Gaerungsverfahren zur herstellung von alphaisopropylapfels|ure.
JPS5424457A (en) Process for swelling treatment of organic sludge
KR840008644A (ko) 원예재배용 클로레라 비료의 제조방법
KR830005867A (ko) 인체 프롤랙틴의 제조 방법
JPS5282774A (en) Decomposition of polyesters
KR850003736A (ko) 교차결합 녹말의 제조방법
SU626039A1 (ru) Способ автоматического регулировани процесса производства термической фосфорной кислоты
KR850005836A (ko) 3-위치가 치환된 2(3h)-벤즈티아졸론의 제조방법
DE3065924D1 (en) Process for the production of glycerol dehydrogenase
JPS5254082A (en) Method of fixing lipase to microbial cells
KR900006504A (ko) 감마-리놀렌산의 생산성이 높은 무코로 속균(Mucor sp) : KCTC 8405P, 및 이를 이용한 균체지방의 제조방법
KR840009285A (ko) 분지상 알카노인산의 제조방법
GB1100505A (en) Process for the manufacture of í¸-pregnene-11ª‰ and 11ª‡,17ª‡,21-triol-3,20-diones
JPS52105282A (en) Immobilization of enzyme

Legal Events

Date Code Title Description
FD Application lapsed

Owner name: AIR PRODUCTS AND CHEMICALS, INC.