ZA931218B - Simultaneous monitoring of multiple water treatment performance indicators. - Google Patents

Simultaneous monitoring of multiple water treatment performance indicators.

Info

Publication number
ZA931218B
ZA931218B ZA931218A ZA931218A ZA931218B ZA 931218 B ZA931218 B ZA 931218B ZA 931218 A ZA931218 A ZA 931218A ZA 931218 A ZA931218 A ZA 931218A ZA 931218 B ZA931218 B ZA 931218B
Authority
ZA
South Africa
Prior art keywords
water treatment
performance indicators
multiple water
treatment performance
simultaneous monitoring
Prior art date
Application number
ZA931218A
Other languages
English (en)
Inventor
John Richardson
Gary G Engstrom
John Arthur Kelly
Larry M Kye
Mark D Brickhouse
Scott J Kahel
Kenneth J Schlager
Original Assignee
Grace W R & Co
Biotronics Tech 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
Application filed by Grace W R & Co, Biotronics Tech Inc filed Critical Grace W R & Co
Publication of ZA931218B publication Critical patent/ZA931218B/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G01N33/1813—Specific cations in water, e.g. heavy metals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G01N33/182—Specific anions in water
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/12—Circuits of general importance; Signal processing
    • G01N2201/129—Using chemometrical methods

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
ZA931218A 1992-03-04 1993-02-22 Simultaneous monitoring of multiple water treatment performance indicators. ZA931218B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/845,889 US5242602A (en) 1992-03-04 1992-03-04 Spectrophotometric monitoring of multiple water treatment performance indicators using chemometrics

Publications (1)

Publication Number Publication Date
ZA931218B true ZA931218B (en) 1993-09-17

Family

ID=25296335

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA931218A ZA931218B (en) 1992-03-04 1993-02-22 Simultaneous monitoring of multiple water treatment performance indicators.

Country Status (16)

Country Link
US (1) US5242602A (xx)
EP (1) EP0559305A2 (xx)
JP (1) JPH0666718A (xx)
KR (1) KR930020163A (xx)
CN (1) CN1046031C (xx)
AU (1) AU669687B2 (xx)
BR (1) BR9300730A (xx)
CA (1) CA2090820C (xx)
FI (1) FI930940A (xx)
MY (1) MY131304A (xx)
NZ (1) NZ245904A (xx)
PH (1) PH29905A (xx)
SG (1) SG46421A1 (xx)
TR (1) TR27811A (xx)
TW (1) TW237517B (xx)
ZA (1) ZA931218B (xx)

Families Citing this family (110)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5948272A (en) * 1986-04-29 1999-09-07 Lemelson; Jerome H. System and method for detecting and neutralizing microorganisms in a fluid using a laser
US5480562A (en) * 1993-12-28 1996-01-02 Lemelson; Jerome H. Method of purifying water controlled by laser scanning
WO1994020834A1 (en) * 1993-03-01 1994-09-15 Axiom Analytical, Inc. Method of ensuring accurate identification and measurement of solutes
AU5522594A (en) * 1993-03-03 1994-09-08 W.R. Grace & Co.-Conn. A method of directly monitoring the concentrations of microbiocides in aqueous systems
NZ250956A (en) * 1993-03-03 1995-04-27 Grace W R & Co Monitoring concentrations of water treatment compositions using absorbance or emission spectra
US5550630A (en) * 1993-03-19 1996-08-27 The United States Of America As Represented By The Secretary Of Agriculture Spectrophotometric method for structural analysis of organic compounds, polymers, nucleotides and peptides
US5340468A (en) * 1993-03-31 1994-08-23 Hawthorne Treatment Systems, Inc. System for controlling addition of lime to reduce water alkalinity
SE509036C2 (sv) * 1993-06-29 1998-11-30 Foss Tecator Ab Förfarande för mätning av kemiska och fysikaliska parametrar för att karakterisera och klassificera vattensuspensioner
IT1264931B1 (it) * 1993-07-14 1996-10-17 Arcangelo Ventura Dispositivo per il controllo della qualita' di acque depurate particolarmente per impianti biologici di depurazione e simili
US5470482A (en) * 1993-12-27 1995-11-28 Uop Control process for simulated moving bed para-xylene separation
SE9401718L (sv) * 1994-05-18 1995-11-19 Eka Nobel Ab Sätt att bestämma parametrarna i papper
SE503101C2 (sv) * 1994-05-18 1996-03-25 Eka Nobel Ab Sätt att bestämma våtstyrkan hos papper och medel för processkontroll genom användning av sättet
SE9401707L (sv) * 1994-05-18 1995-11-19 Christer Bjoerklund Spektrofotometrisk metod att mäta kvalitets och styrke parametrar hos träd, virke trävaror, flis, spån, massa och papper
JP3261264B2 (ja) * 1994-07-13 2002-02-25 株式会社堀場製作所 多成分水溶液の分析方法およびその分析装置
SE503644C2 (sv) * 1994-10-14 1996-07-22 Eka Chemicals Ab Sätt att bestämma halten organiskt material i effluenter från massa- och pappersbruk
US5586049A (en) * 1994-10-19 1996-12-17 International Business Machines Corporation Apparatus and method for generating profiles of constituents of chemical mixtures
US5567625A (en) * 1994-10-19 1996-10-22 International Business Machines Corporation Apparatus and method for real-time spectral deconvolution of chemical mixtures
US5585919A (en) * 1994-10-19 1996-12-17 International Business Machines Corporation Error minimization apparatus and method for real-time spectral deconvolution of chemical mixtures
GB9422392D0 (en) * 1994-11-05 1995-01-04 Cognitive Solutions Ltd Detector for chemical analysis
US5616457A (en) * 1995-02-08 1997-04-01 University Of South Florida Method and apparatus for the detection and classification of microorganisms in water
SG38866A1 (en) * 1995-07-31 1997-04-17 Instrumentation Metrics Inc Liquid correlation spectrometry
US5680409A (en) * 1995-08-11 1997-10-21 Fisher-Rosemount Systems, Inc. Method and apparatus for detecting and identifying faulty sensors in a process
US6040578A (en) * 1996-02-02 2000-03-21 Instrumentation Metrics, Inc. Method and apparatus for multi-spectral analysis of organic blood analytes in noninvasive infrared spectroscopy
US5747806A (en) * 1996-02-02 1998-05-05 Instrumentation Metrics, Inc Method and apparatus for multi-spectral analysis in noninvasive nir spectroscopy
US5855791A (en) * 1996-02-29 1999-01-05 Ashland Chemical Company Performance-based control system
US5736405A (en) * 1996-03-21 1998-04-07 Nalco Chemical Company Monitoring boiler internal treatment with fluorescent-tagged polymers
US5925572A (en) * 1996-08-07 1999-07-20 University Of South Florida Apparatus and method for in situ pH measurement of aqueous medium
US5886903A (en) * 1996-10-10 1999-03-23 Domtar Inc. Method and knowledge-based system for diagnosis in biological treatment of waste water
US6023065A (en) * 1997-03-10 2000-02-08 Alberta Research Council Method and apparatus for monitoring and controlling characteristics of process effluents
US5985120A (en) * 1997-06-12 1999-11-16 University Of Massachusetts Rapid analysis of analyte solutions
CA2216046A1 (en) * 1997-09-18 1999-03-18 Kenneth Boegh In-line sensor for colloidal and dissolved substances
GB2329756A (en) * 1997-09-25 1999-03-31 Univ Bristol Assemblies of light emitting diodes
US6177276B1 (en) 1997-12-16 2001-01-23 Chemtreat, Inc. Oxidation and measurement of phosphonates in aqueous solutions
US6200134B1 (en) 1998-01-20 2001-03-13 Kerr Corporation Apparatus and method for curing materials with radiation
US6585933B1 (en) 1999-05-03 2003-07-01 Betzdearborn, Inc. Method and composition for inhibiting corrosion in aqueous systems
US6087182A (en) * 1998-08-27 2000-07-11 Abbott Laboratories Reagentless analysis of biological samples
GB9822729D0 (en) * 1998-10-20 1998-12-16 Wrc Plc Release system for a marker substance
US7454295B2 (en) 1998-12-17 2008-11-18 The Watereye Corporation Anti-terrorism water quality monitoring system
US9056783B2 (en) 1998-12-17 2015-06-16 Hach Company System for monitoring discharges into a waste water collection system
US6068012A (en) * 1998-12-29 2000-05-30 Ashland, Inc. Performance-based control system
DE69920680T2 (de) 1999-07-29 2005-11-03 Sony International (Europe) Gmbh Verfahren und Vorrichtung zur Erkennung von Kunststoffmaterialien mittels optischer Messungen
US6241788B1 (en) 1999-11-16 2001-06-05 Betzdearborn Inc. Method of stabilizing dye solutions and stabilized dye compositions
DE19963561A1 (de) * 1999-12-23 2001-07-05 Merck Patent Gmbh Verfahren und Vorrichtung zur Online-Analytik von Lösungsmittelgemischen
US7390669B2 (en) * 2000-02-24 2008-06-24 Georgia Tech Research Corporation Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream
US7320593B2 (en) 2000-03-08 2008-01-22 Tir Systems Ltd. Light emitting diode light source for curing dental composites
US6944485B1 (en) * 2000-04-20 2005-09-13 Keith W. Van Meter Hyperbaric resuscitation system and method
US6315909B1 (en) * 2000-05-01 2001-11-13 Nalco Chemical Company Use of control matrix for cooling water systems control
JP2003533690A (ja) * 2000-05-16 2003-11-11 ジークル・リミテッド 天然水の測光分析
NL1015440C2 (nl) * 2000-06-14 2001-12-17 Vma Vlastuin Mest Applicaties Inrichting voor chemisch analyseren van een zich in een houder bevindende afvalvloeistof, alsmede werkwijze voor het uitvoeren van een chemische analyse van een zich in een houder bevindende afvalvloeistof.
CA2411975C (en) * 2000-06-16 2007-08-28 Trojan Technologies Inc. Optical radiation sensor system and method for measuring radiation transmittance of a fluid
EP1297320B1 (en) 2000-06-27 2008-02-27 Alberta Research Council Multiple pathlength spectrophotometer
US6549861B1 (en) 2000-08-10 2003-04-15 Euro-Celtique, S.A. Automated system and method for spectroscopic analysis
US6675030B2 (en) 2000-08-21 2004-01-06 Euro-Celtique, S.A. Near infrared blood glucose monitoring system
US6821428B1 (en) * 2002-03-28 2004-11-23 Nalco Company Method of monitoring membrane separation processes
CN1678252B (zh) 2002-07-25 2011-06-29 乔纳森·S·达姆 传输热能的器械、提供预定方向的光的装置及发光装置
US7182597B2 (en) 2002-08-08 2007-02-27 Kerr Corporation Curing light instrument
AU2003298561A1 (en) * 2002-08-23 2004-05-13 Jonathan S. Dahm Method and apparatus for using light emitting diodes
JP4655447B2 (ja) * 2002-10-17 2011-03-23 栗田工業株式会社 水処理装置、水処理方法及び水処理プログラム
CA2512643A1 (en) * 2003-01-07 2004-07-29 Hach Company Classification of deviations in a process
US20050033127A1 (en) * 2003-01-30 2005-02-10 Euro-Celtique, S.A. Wireless blood glucose monitoring system
US8920619B2 (en) 2003-03-19 2014-12-30 Hach Company Carbon nanotube sensor
EP1491876A1 (en) * 2003-06-24 2004-12-29 Ecole Polytechnique FTIR ellipsometry device and process for characterization and further identification of samples of complex biogical materials, notably micro-organisms
US7538869B2 (en) * 2004-06-30 2009-05-26 Chemimage Corporation Multipoint method for identifying hazardous agents
JP4231757B2 (ja) * 2003-09-09 2009-03-04 株式会社堀場製作所 溶液中成分濃度測定方法
GB2410800B (en) 2004-02-06 2007-12-12 Statoil Asa Fingerprinting of hydrocarbon containing mixtures
GB2429772B (en) * 2004-04-19 2008-11-12 Trojan Techn Inc Optical radiation sensor system and method for measuring radiation transmittance of a fluid
US7179384B2 (en) * 2004-04-30 2007-02-20 Nalco Company Control of cooling water system using rate of consumption of fluorescent polymer
CN100594327C (zh) 2004-06-15 2010-03-17 汉高公司 大功率led电-光学器件组件
US7679058B2 (en) * 2004-12-16 2010-03-16 The University Of Georgia Research Foundation, Inc. Systems and method for predicting the lime requirement in soils
ATE513776T1 (de) * 2004-12-27 2011-07-15 Diversey Inc Verfahren zum schmieren eines fördersystems
JP4722513B2 (ja) * 2005-03-15 2011-07-13 倉敷紡績株式会社 過酢酸を含む酸溶液の濃度測定のための装置および方法
US8113830B2 (en) * 2005-05-27 2012-02-14 Kerr Corporation Curing light instrument
FR2888936B1 (fr) * 2005-07-21 2007-10-12 Papeteries Matussiere Forest Procede de controle de la qualite alimentaire d'un papier et dispositif pour sa mise en oeuvre
KR100764838B1 (ko) 2006-05-04 2007-10-09 삼성석유화학(주) 고순도 테레프탈산 폐수의 성상분석장치 및 이를 이용한성상분석방법
EP1859873A1 (en) * 2006-05-22 2007-11-28 JohnsonDiversey, Inc. Method and apparatus for washing a glass container
US8047686B2 (en) 2006-09-01 2011-11-01 Dahm Jonathan S Multiple light-emitting element heat pipe assembly
EP2083950A4 (en) 2006-11-24 2014-01-08 Aqualysis Pty Ltd ANALYZER OF CHEMICALS
SG152081A1 (en) 2007-10-18 2009-05-29 Yokogawa Electric Corp Metric based performance monitoring method and system
CA2714988A1 (en) * 2007-10-26 2009-04-30 Georgia Tech Research Corporation Sensor technique for black liquor oxidation control
DE102008039836B4 (de) * 2008-08-27 2012-08-09 Manfred Dausch Vorrichtung und Verfahren zur Bestimmung des Säuregehalts
US9072572B2 (en) 2009-04-02 2015-07-07 Kerr Corporation Dental light device
US9066777B2 (en) 2009-04-02 2015-06-30 Kerr Corporation Curing light device
CN101943658B (zh) * 2009-07-08 2012-05-30 上海衡伟信息技术有限公司 主元分析理论和光谱分析技术结合对水质连续监测的方法
US7960316B2 (en) * 2009-09-25 2011-06-14 Halliburton Energy Services, Inc. Corrosion inhibitor intensifier compositions and associated methods
WO2011153625A2 (en) * 2010-06-10 2011-12-15 Ramila Hishantha Peiris Method for fluorescence-based fouling forecasting and optimization in membrane filtration operations
CN102042965B (zh) * 2010-11-18 2012-07-11 上海衡伟信息技术有限公司 在线宽光谱水质分析仪
US8343771B2 (en) 2011-01-12 2013-01-01 General Electric Company Methods of using cyanine dyes for the detection of analytes
CN102279158A (zh) * 2011-08-09 2011-12-14 上海衡伟信息技术有限公司 光谱水质在线预警预报系统
CN102564965B (zh) * 2011-12-31 2014-10-08 聚光科技(杭州)股份有限公司 基于光谱检测技术的检测方法
EP2828640B1 (en) * 2012-03-19 2021-07-07 Ormeci Beckers, Banu PROCESSES for regulation and monitoring of an amount of flocculating agent added to a process stream
WO2014053971A1 (en) * 2012-10-01 2014-04-10 Abb Technology Ltd. A system and a method for tracking plant-wide fault
US9266797B2 (en) 2013-02-12 2016-02-23 Ecolab Usa Inc. Online monitoring of polymerization inhibitors for control of undesirable polymerization
WO2014144389A1 (en) * 2013-03-15 2014-09-18 Advantage Controls, Llc System and process for detecting phosphonate
WO2015075835A1 (ja) * 2013-11-25 2015-05-28 栗田工業株式会社 水処理設備の制御方法及び制御プログラム並びに水処理システム
US9399622B2 (en) 2013-12-03 2016-07-26 Ecolab Usa Inc. Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes
WO2016046719A1 (en) 2014-09-23 2016-03-31 Maytronics Ltd. Multi parameter swimming pool fluid analysis and regulating method and device
PL3259258T3 (pl) 2015-02-17 2021-05-04 Evonik Operations Gmbh Sposób epoksydacji olefiny nadtlenkiem wodoru
EP3059229A1 (en) 2015-02-17 2016-08-24 Evonik Degussa GmbH Method for the epoxidation of an olefin with hydrogen peroxide
US20170183243A1 (en) * 2015-03-26 2017-06-29 Doug Reitmeyer Systems and arrangements for mitigating environmental damage caused by storm water carried pollution
US20180297862A1 (en) * 2015-05-19 2018-10-18 Formarum Inc. Water treatment system and method
CN106706541A (zh) * 2015-07-17 2017-05-24 中国钢铁股份有限公司 分散剂浓度检测装置
US10351453B2 (en) * 2016-04-14 2019-07-16 Nch Corporation Composition and method for inhibiting corrosion
US11085118B2 (en) * 2016-04-14 2021-08-10 Nch Corporation Composition and method for inhibiting corrosion and scale
US11104587B2 (en) 2016-04-14 2021-08-31 Nch Corporation System and method for automated control, feed, delivery verification, and inventory management of corrosion and scale treatment products for water systems
US20180121889A1 (en) * 2016-10-28 2018-05-03 Wipro Limited Method and system for dynamically managing waste water treatment process for optimizing power consumption
IT201600122231A1 (it) * 2016-12-01 2018-06-01 Lw S R L Metodo per misurare la concentrazione di un additivo anti-sporcamento in un flusso di acqua salina circolante in un impianto di desalinizzazione e relative applicazioni.
EP3552013A4 (en) * 2017-10-09 2019-12-04 BL Technologies, Inc. INTELLIGENT SYSTEMS AND METHODS FOR DIAGNOSIS OF THE HEALTH STATUS OF PROCESSES AND ASSETS, DETECTION AND CONTROL OF ANOMALIES IN WASTEWATER OR DRINKING WATER SYSTEMS
US11307138B2 (en) * 2019-03-12 2022-04-19 Paul Hattingh Testing method for residual organic compounds in a liquid sample
EP3825283B1 (en) * 2019-11-21 2024-04-10 Grundfos Holding A/S A method for abating the presence of a selected chemical substance in wastewater flowing in a wastewater channel system
US11215624B2 (en) 2020-01-08 2022-01-04 Paul Lighton Fluid monitoring systems and methods

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5929073A (ja) * 1982-08-09 1984-02-16 Hitachi Plant Eng & Constr Co Ltd 腐植酸含有廃水処理の自動制御方法
SE8401773L (sv) * 1984-03-30 1985-10-01 Boh Optical Ab Frekvens- och effektreglering hos laserdioder
DE3625490A1 (de) * 1986-07-28 1988-02-04 Kernforschungsz Karlsruhe Multikomponenten-prozessanalysensystem
US4783314A (en) * 1987-02-26 1988-11-08 Nalco Chemical Company Fluorescent tracers - chemical treatment monitors
CA1325583C (en) * 1987-12-11 1993-12-28 Gary L. Baker Visual analytical tracer and method for detection and quantitative analysis for water treatment chemicals
US4992380A (en) * 1988-10-14 1991-02-12 Nalco Chemical Company Continuous on-stream monitoring of cooling tower water
US4966711A (en) * 1989-02-27 1990-10-30 Nalco Chemical Company Transition metals as treatment chemical tracers
US5121443A (en) * 1989-04-25 1992-06-09 Spectra-Physics, Inc. Neural net system for analyzing chromatographic peaks
DE69023859T2 (de) * 1989-09-20 1996-07-25 Kurashiki Boseki Kk Verfahren und Vorrichtung zur quantitativen Bestimmung von Chemikalien zur Behandlung von Halbleitern.
US5132096A (en) * 1990-03-23 1992-07-21 Nalco Chemical Company Monitoring performance of a water treating agent by measuring and resolving optical voltage analogs
US5006311A (en) * 1990-03-23 1991-04-09 Nalco Chemical Company Monitoring performance of a treating agent added to a body of water
US5121337A (en) * 1990-10-15 1992-06-09 Exxon Research And Engineering Company Method for correcting spectral data for data due to the spectral measurement process itself and estimating unknown property and/or composition data of a sample using such method
NZ250956A (en) * 1993-03-03 1995-04-27 Grace W R & Co Monitoring concentrations of water treatment compositions using absorbance or emission spectra
AU5522594A (en) * 1993-03-03 1994-09-08 W.R. Grace & Co.-Conn. A method of directly monitoring the concentrations of microbiocides in aqueous systems

Also Published As

Publication number Publication date
TW237517B (xx) 1995-01-01
EP0559305A2 (en) 1993-09-08
PH29905A (en) 1996-09-16
FI930940A (fi) 1993-09-05
CN1079301A (zh) 1993-12-08
KR930020163A (ko) 1993-10-19
CA2090820A1 (en) 1993-09-05
NZ245904A (en) 1995-03-28
MY131304A (en) 2007-08-30
EP0559305A3 (xx) 1995-07-05
JPH0666718A (ja) 1994-03-11
BR9300730A (pt) 1993-09-08
SG46421A1 (en) 1998-02-20
FI930940A0 (fi) 1993-03-03
CA2090820C (en) 2002-05-07
AU669687B2 (en) 1996-06-20
CN1046031C (zh) 1999-10-27
US5242602A (en) 1993-09-07
AU3319793A (en) 1993-09-09
TR27811A (tr) 1995-08-29

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