[go: up one dir, main page]

EP0599907A1 - Procede pour la determination et le dosage de la concentration de matieres actives pour le nettoyage et la desinfection dans des solutions aqueuses d'agents detergents et desinfectants - Google Patents

Procede pour la determination et le dosage de la concentration de matieres actives pour le nettoyage et la desinfection dans des solutions aqueuses d'agents detergents et desinfectants

Info

Publication number
EP0599907A1
EP0599907A1 EP92917156A EP92917156A EP0599907A1 EP 0599907 A1 EP0599907 A1 EP 0599907A1 EP 92917156 A EP92917156 A EP 92917156A EP 92917156 A EP92917156 A EP 92917156A EP 0599907 A1 EP0599907 A1 EP 0599907A1
Authority
EP
European Patent Office
Prior art keywords
concentration
cleaning
solution
iodine
active ingredient
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.)
Ceased
Application number
EP92917156A
Other languages
German (de)
English (en)
Inventor
Alfred Laufenberg
Mike Varpins
Alfred Werner-Busse
Friedhelm Siepmann
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.)
Ecolab Inc
Original Assignee
Henkel AG and Co KGaA
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 Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0599907A1 publication Critical patent/EP0599907A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0055—Metering or indication of used products, e.g. type or quantity of detergent, rinse aid or salt; for measuring or controlling the product concentration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/24—Apparatus using programmed or automatic operation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/135—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture
    • G05D11/138—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture by sensing the concentration of the mixture, e.g. measuring pH value
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/24—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4236—Arrangements to sterilize or disinfect dishes or washing liquids
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/30—Variation of electrical, magnetical or optical quantities
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/07—Consumable products, e.g. detergent, rinse aids or salt
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0324—With control of flow by a condition or characteristic of a fluid

Definitions

  • the invention relates to a method for determining the concentration of an active ingredient containing iodine / iodide in aqueous active ingredient solutions, in particular for cleaning or disinfecting containers such as bottles, barrels, kegs, boxes and tanks and / or pipelines in the food processing industry Industry as well as for industrial cleaning in continuous washing systems, the concentration of the active substances in the solution being measured by determining their iodine / iodide content.
  • phase separation In cleaning systems for closed systems (ClP systems) in which the cleaning or disinfection solution is used several times, dilution effects also occur due to mixed phases during the pre-rinsing and post-rinsing.
  • stacking used cleaning solutions which are usually pushed out of the pipelines with fresh water, it is necessary to control the point at which the returning solution is fed into the stacking container and the point at which the concentration of cleaning or disinfecting agent in the Rinsing water is no longer worth collecting, and above all, from which rinsing time the system can be filled with food again without the risk of contamination with cleaning or disinfection chemicals.
  • phase separation This process in CIP cleaning is referred to as "phase separation".
  • the precise measurement of the cleaning agent and disinfectant concentration in the cleaning or disinfecting solution or in the rinse water is of paramount importance.
  • the ClP process is the last process often a disinfection step. In particular, contamination of foods with the frequently toxic disinfectants must be avoided and the post-rinsing process should therefore be monitored particularly carefully.
  • the conductivity measurement is carried out as an ⁇ -line measurement method.
  • the safe implementation of this method requires a relatively high conductance of the active ingredient solution of usually at least 3 to 4 mS, which is only achieved by strongly alkaline or strongly acidic solutions.
  • dosing proportional to the bottle throughput Another common way of dosing active ingredient concentrates is dosing proportional to the bottle throughput. This method is based on the consideration that each bottle with the bottle cell carries a constant amount of cleaning solution out of the bath. However, this amount changes depending on the petrification of the bottle cells, the foam behavior of the solution and the control of the liquid flows between the various baths of industrial bottle cleaning machines. From operational practice it is known that the actual detergent concentration can vary from the target concentration by 50 hours or more in the course of a few days when dosing according to the methods mentioned. Lie technical defects of the dosing device, these can only be recognized and corrected after the elaborate manual concentration determination carried out at intervals of 1 to 5 days. In these cases, concentration fluctuations of up to a factor of 40 occur in operational practice.
  • the invention is therefore based on the object of providing a method of the type mentioned at the outset which operates reliably, precisely, quickly, less susceptibly to faults and continuously. It is also intended to automate the replenishment of the active ingredient enable.
  • the method according to the invention should be able to be used in an integrated cleaning technique called "cleaning in place”. These are large, coherent, fully automatic cleaning systems which automatically clean all storage tank and line systems after each production process. The cleaning processes are monitored by small computers, so that a predetermined optimal hygiene standard is produced again and again. This technology is used in the dairy, brewing and beverage industries.
  • the iodine ion concentration in the solution is measured potentiometrically by means of electrodes which selectively respond to iodine ions and the concentration of the active substance is determined from the measured values obtained, the iodine / iodide concentration in the solution being between 0 , 1 and 1000 ppm.
  • the iodine / iodide concentration in the solution is in the range between 1 and 20 ppm.
  • the method according to the invention is advantageously used to measure the concentration of active substance in the caustic baths and water zones of industrial bottle cleaning machines.
  • the method for measuring the active substance concentration of cleaning or disinfectant solutions is used for ClP processes in the food industry.
  • the method for measuring the active substance concentration in industrial continuous washing systems is used in particular for the cleaning of metal sheets or textiles, the objects to be cleaned, in particular, being dragged out of the active substance baths by part of the active substance solution.
  • the concentration of the active ingredient is preferably determined from the measured potential by means of a calibration curve which has been determined by the measured potentials of at least two different concentrations of the active ingredient in the solution to be monitored. Particularly reliable measured values are obtained since the solution present in practice with the typical impurities of the special cleaning and disinfection process is used for calibration. It has turned out to be advantageous if the measuring points used for the calibration comprise a concentration range between one and two decades.
  • direct potentiometry is advantageous when carrying out the method according to the invention, since it immediately delivers current measured values without great expense. Installation in an automatic metering device is also problem-free.
  • it is expedient to plot the potentials obtained against the logarithm of the concentrations, so that a calibration line is obtained.
  • Another aspect of the invention relates to the dosing / re-dosing of an active substance containing iodine / iodide into an aqueous active substance solution.
  • the metering is controlled by a control device which compares the actual concentration determined according to the invention with a predetermined target concentration.
  • An integrated cleaning technology (“cleaning in place”) can be built up with this dosing method.
  • pre-rinse or rinse water is separated from the aqueous active substance solution (phase separation) in ClP processes by controlling the phase separation by a device which compares the determined concentration of the active substance with a predetermined target concentration and controls valves for phase separation in accordance with the comparison result.
  • An iodide electrode and a common pH electrode were installed as the counter electrode in a flow cup.
  • the cleaning liquor was passed through the cup from a running bottle washing machine.
  • the amplified measurement signals were registered on a recorder.
  • a calibration curve was recorded, in which the potential of the original solution and the solution was measured after increasing the detergent concentration by a factor of 10.
  • the concentration of the detergent in the original solution was determined photometrically.
  • the calibration line was created by plotting the logarithm of the potentials against the concentration.
  • detergents were added in portions during the measurement.
  • the cleaning agent is the commercial product P3-Stabi1on AL liquid, an active ingredient concentrate for bottle cleaning, which is also suitable for removing aluminum foils, labels and capsules.
  • the results obtained are found in Table 1 for a cleaning solution with soiling and in Table 2 for a fresh cleaning solution.
  • Table 1 for a cleaning solution with soiling
  • Table 2 for a fresh cleaning solution.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Detergent Compositions (AREA)

Abstract

L'invention concerne un procédé pour la détermination de la concentration d'une matière active contenant de l'iode/iodure dans des solutions aqueuses de matières actives utilisées notamment pour le nettoyage ou la désinfection de récipients tels que bouteilles, fûts, tonnelets, caissons et réservoirs et/ou conduites, dans l'industrie de transformation alimentaire ainsi que pour le nettoyage industriel dans des installations de lavage en continu, procédé selon lequel la concentration de la matière active dans la solution est mesurée par l'intermédiaire d'une détermination de sa teneur en iode/iodure. L'invention vise à obtenir un procédé fiable, précis, rapide, fonctionnant en continu sans être sujet à des pannes, tout en permettant une automatisation du dosage ultérieur de la matière active. Le procédé selon l'invention devra en particulier s'insérer dans une technique intégrée de nettoyage dite de "cleaning in place". Ces avantages sont obtenus, conformément à l'invention, grâce au fait qu'on mesure par potentiométrie la concentration en ions iode dans la solution, au moyen d'électrodes répondant sélectivement aux ions iode, et qu'on détermine, à partir des valeurs de mesure obtenues, la concentration en matière active, la concentration en iode/iodure dans la solution étant comprise entre 0,1 et 1000 ppm. En particulier, la concentration en iode/iodure dans la solution est comprise entre 1 et 20 ppm.
EP92917156A 1991-08-22 1992-08-13 Procede pour la determination et le dosage de la concentration de matieres actives pour le nettoyage et la desinfection dans des solutions aqueuses d'agents detergents et desinfectants Ceased EP0599907A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4127663 1991-08-22
DE4127663A DE4127663A1 (de) 1991-08-22 1991-08-22 Verfahren zum bestimmen und regeln der konzentration von wirkstoffen zur reinigung und desinfektion in waessrigen reinigungs- und desinfektionsmittelloesungen
PCT/EP1992/001846 WO1993004361A1 (fr) 1991-08-22 1992-08-13 Procede pour la determination et le dosage de la concentration de matieres actives pour le nettoyage et la desinfection dans des solutions aqueuses d'agents detergents et desinfectants

Publications (1)

Publication Number Publication Date
EP0599907A1 true EP0599907A1 (fr) 1994-06-08

Family

ID=6438761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92917156A Ceased EP0599907A1 (fr) 1991-08-22 1992-08-13 Procede pour la determination et le dosage de la concentration de matieres actives pour le nettoyage et la desinfection dans des solutions aqueuses d'agents detergents et desinfectants

Country Status (8)

Country Link
US (1) US5441611A (fr)
EP (1) EP0599907A1 (fr)
JP (1) JPH06510118A (fr)
AR (1) AR248191A1 (fr)
BR (1) BR9206395A (fr)
CA (1) CA2116226A1 (fr)
DE (1) DE4127663A1 (fr)
WO (1) WO1993004361A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9418080U1 (de) * 1994-11-11 1996-03-14 Seibusch, Wilhelm, 86150 Augsburg Waschanlage
EP0725273A3 (fr) * 1995-01-31 1997-12-17 WALLACE & TIERNAN, INC. Méthode et système pour contrÔler continuellement le résidu déchloruration dans un écoulement de traitement
US5772971A (en) * 1996-07-05 1998-06-30 Symbollon Corporation Iodine-based microbial decontamination system
DE19814500A1 (de) * 1998-04-01 1999-10-14 Henkel Kgaa Automatische Kontrolle und Steuerung des Tensidgehalts in wäßrigen Prozeßlösungen
DE19959310A1 (de) * 1999-12-09 2001-06-21 Henkel Ecolab Gmbh & Co Ohg Messen und Steuern bei Wasch-, Reinigungs-, und Desinfektionsprozessen
DE19959311A1 (de) * 1999-12-09 2001-08-23 Henkel Ecolab Gmbh & Co Ohg Entschäumerzubereitung und deren Verwendung
DE10163017B4 (de) * 2001-12-20 2005-02-17 Siemens Ag Verfahren zum Betreiben eines Reaktionsbehälters
US20060286676A1 (en) * 2005-06-17 2006-12-21 Van Camp James R Fluorometric method for monitoring a clean-in-place system
WO2008095109A1 (fr) * 2007-02-01 2008-08-07 Johnsondiversey, Inc. Systèmes et procédés de commande de distributeur
DE102007022798A1 (de) † 2007-05-11 2008-11-13 Sig Technology Ag Verfahren und Vorrichtung zum gleichzeitigen Reinigen mehrerer Rohrleitungen oder Rohrleitungssysteme
DE102007036800A1 (de) * 2007-05-29 2008-12-04 Herbert Kannegiesser Gmbh Verfahren zur Nassbehandlung von Wäschestücken
DE102009027950A1 (de) * 2009-07-23 2011-01-27 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät
CN110709693B (zh) 2017-05-29 2022-10-21 联合利华知识产权控股有限公司 洗涤剂组合物和用于探测溶液中的标记分子的存在的方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172778A (en) * 1976-04-27 1979-10-30 U.S. Philips Corporation Ion-selective electrode

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770608A (en) * 1972-03-16 1973-11-06 Mead Corp Process controller
US4211623A (en) * 1978-12-27 1980-07-08 Orion Research Incorporated Halide electrode
US4550011A (en) * 1983-07-01 1985-10-29 Mccollum Roy L Sample flow cell for automatic halogen and pH control for water reservoirs
US4619739A (en) * 1985-01-14 1986-10-28 Kabushiki Kaisha Toshiba Method and apparatus for measuring halogen ion concentration

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172778A (en) * 1976-04-27 1979-10-30 U.S. Philips Corporation Ion-selective electrode

Also Published As

Publication number Publication date
JPH06510118A (ja) 1994-11-10
CA2116226A1 (fr) 1993-03-04
DE4127663A1 (de) 1993-02-25
AR248191A1 (es) 1995-06-30
US5441611A (en) 1995-08-15
WO1993004361A1 (fr) 1993-03-04
BR9206395A (pt) 1994-11-29

Similar Documents

Publication Publication Date Title
DE69534714T2 (de) Verfahren und vorrichtung zum steuern der zufuhr von wasserbehandlungschemikalien unter verwendung eines voltametrischen sensors
EP2171149B1 (fr) Procédé de nettoyage de conduites de dosage et dispoisitif pour un tel procede dans des machines de traitement de linge à commande automatique
EP0599907A1 (fr) Procede pour la determination et le dosage de la concentration de matieres actives pour le nettoyage et la desinfection dans des solutions aqueuses d'agents detergents et desinfectants
DE3533098A1 (de) Vorrichtung zum enthaerten von wasser
WO1994023286A1 (fr) Procede de mesure du degre de salissure d'un bain de lavage
EP0134199A1 (fr) Méthode et outillage pour la préparation d'une solution
DE2042927C3 (de) Verfahren und Vorrichtung zur Prüfung von ungereinigtem Rohwasser bei der Aufbereitung
EP0105842A1 (fr) Procédé et appareil pour la préparation de mélanges liquides
EP0097827B1 (fr) Contrôle de pureté par mesure de la conductivité électrique
DE19600857A1 (de) Verfahren zur Dosierung von Prozeßbädern
DE2819231A1 (de) Verfahren und vorrichtung zur behandlung von wasser
DE69413246T2 (de) Verfahren zum dosieren eines waschmittelproduktes
DE10209466B4 (de) Vorrichtung zum fortlaufenden Überwachen und Regeln von Prozesslösung
DE19646925C1 (de) Vorrichtung zur Messung der Oberflächenspannung von Flüssigkeiten
DE3217987C2 (fr)
EP0834739A2 (fr) Méthode et appareil pour la détermination de l'oxidabilité des substances contenues dans des eaux usées
DE4412576A1 (de) Sensorsystem zur Desinfektionsmittelerfassung und Dosierung in Textilwaschanlagen (Senking-Anlagen)
DE2536799A1 (de) Verfahren und vorrichtung zum analysieren einer loesung niedrigen ionengehaltes
DE3724335A1 (de) Verfahren und vorrichtung zur ueberwachung der partiellen dichte von metall und saeure in beizbaedern
DE3128439A1 (de) Verfahren und vorrichtung zur bestimmung von abwasserparametern
DE102016112729A1 (de) Spritzeinrichtung und Verfahren zum Betreiben einer Spritzeinrichtung
EP0019704A1 (fr) Procédé et appareil pour la précipitation chimique contrôlée de matières étrangères contenues dans un liquide
EP3875950A1 (fr) Détermination de chlorate doté d'une électrode ainsi que procédé et dispositif d'étalonnage de l'électrode
DE3217989C2 (fr)
DE69800841T2 (de) Verfahren zur optimalisierung eines betriebszyklus einer wasserbehandlungseinheit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19940214

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI NL SE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SIEPMANN, FRIEDHELM

Inventor name: WERNER-BUSSE, ALFRED

Inventor name: VARPINS, MIKE

Inventor name: LAUFENBERG, ALFRED

17Q First examination report despatched

Effective date: 19970404

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HENKEL-ECOLAB GMBH & CO. OHG

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ECOLAB GMBH & CO. OHG

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ECOLAB INC.

18R Application refused

Effective date: 20030424