EP1892349B1 - Container restoration agent and method of restoring containers filled with aqueous fluid - Google Patents

Container restoration agent and method of restoring containers filled with aqueous fluid Download PDF

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Publication number
EP1892349B1
EP1892349B1 EP06090146.9A EP06090146A EP1892349B1 EP 1892349 B1 EP1892349 B1 EP 1892349B1 EP 06090146 A EP06090146 A EP 06090146A EP 1892349 B1 EP1892349 B1 EP 1892349B1
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container
liquid
water
agent
fibre powder
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German (de)
French (fr)
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EP1892349A1 (en
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Wilhelm Klieboldt
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings

Definitions

  • the invention relates to a means and a method for the remediation of permanently filled with aqueous liquid containers, especially large containers, such as swimming pools, cisterns, fountains, tanks that have so small-sized leaks that you practically can not locate them.
  • the object of the invention is to provide a means and a method which enables the remediation of small-sized leaks permanently filled with solids-free aqueous liquid containers, without the need for emptying the defective container is required.
  • the remediation agent is stirred in an amount of 0.4 to 4 liters per 1000 liters of container liquid into the liquid in the container to be sanitized and circulated therein for a period of about 1 to 5 days.
  • the excess fiber powder content of the container refining agent according to the invention which is not required for the refurbishment, is filtered off from the container liquid; the excess amount of water glass solution not required for the remediation remains in the tank liquid.
  • the fiber powder is stirred into the waterglass solution introduced in the required amount.
  • the dispersion thus formed is virtually unlimited - at normal temperature.
  • the water glass solutions to be used for the present invention are known commercial products based on alkali silicates and water. They are commercially available as more or less viscous liquids, depending in particular on the solids content of alkali metal silicate and of nature as soda or potassium water glass available. Since the viscosities of sodium silicate solutions at comparable solids contents of alkali silicate are lower than those of potassium silicate solutions, containerization agents according to the invention preferably contain sodium silicate; the lower the viscosity of the water glass solution used, the more energy-saving the fiber particles can be dispersed therein.
  • organic fiber material in particular cellulose
  • the Faserpülver hot a relatively low bulk density. Then it is particularly easy to disperse in the viscous waterglass solution.
  • the bulk density of the Faserpulverteilchen should not exceed 200 g / l practical.
  • Fiber powder particles of this type obtained from fibrillated cellulose fibers have proven to be particularly advantageous for the novel compositions Purposes proved.
  • the fiber powder particles serve to bind the precipitated by the action of carbonic acid from the glass of water precipitated colloidal silica, so that they can harden at the leaks and close the leaks.
  • the pH of the inventive containerization agent is in the alkaline range, at about pH 10 - 10.5 (at 20 ° C). It must be ensured that, when using the container refining agent according to the invention, decomposition does not take place, for example, due to acidic constituents in the aqueous liquid present in the container basin. If this liquid has a pH of less than about pH 9, one uses for safety's sake a container according to the invention, which additionally contains up to about 15 wt .-% of sodium hydroxide solution to ensure that the pH of at least pH 9 of the Container liquid is not reduced during the treatment with the inventive agent. You can add the caustic soda to the agent as such, or stir them before adding the agent in the liquid-filled container in the container liquid.
  • the container refining agent according to the invention is suitable for sealing small-dimensioned leaks, such as, for example, pores and hairline cracks, up to a width of approximately 5 mm. It can containers, especially large containers, such as swimming pools and baths of all kinds be rehabilitated, made of different materials, such as concrete, reinforced concrete, natural stone, brick, composite material, such as plastic-proofed aluminum, or the required strength aus sodem plastic material, such as polyester (GFK ), can be created in any pelvic construction.
  • materials such as concrete, reinforced concrete, natural stone, brick, composite material, such as plastic-proofed aluminum, or the required strength aus sodem plastic material, such as polyester (GFK )
  • any coarse dirt e.g. by means of a pool floor cleaner, removed. Oily and greasy deposits on pelvic edges and surfaces must also be removed.
  • the water hardness of the basin filling It is also determined before the addition of the inventive agent for pelvic filling, the water hardness of the basin filling. If this is higher than 20 ° dH, the required softening is also carried out by adding caustic soda. If desired, the softening may also be carried out prior to the pH adjustment with any known softening agents, for example sodium carbonate. In any case, formed hardness precipitates must also be removed like other contaminants before the addition of the inventive agent on the swimming pool own filter pump and / or by means of the pelvic floor cleaning device. Thereafter, circulating pump and filter of the swimming pool are switched off or shut off.
  • the basin's own filter system can be started again.
  • the excess, not used for the repair of the damaged areas fiber content of the added inventive container refining be filtered off.
  • the filter is expediently backwashed to remove the fiber particles therefrom.
  • the excess, unused portion of water glass from the agent used remains in the pool water.
  • pH sinkers e.g. Hydrochloric acid
  • the tank filling water was treated with the aid of a water softening cartridge, after which the water hardness had dropped to 12 ° dH; the pH was then at pH 7.3.

Description

Die Erfindung betrifft ein Mittel und ein Verfahren zur Sanierung von permanent mit wässriger Flüssigkeit gefüllten Behältern, insbesondere Grossbehältern, wie beispielsweise Schwimmbecken, Zisternen, Springbrunnen, Tanks, die so gering-dimensionierte Undichtigkeiten aufweisen, dass man sie praktisch nicht orten kann.The invention relates to a means and a method for the remediation of permanently filled with aqueous liquid containers, especially large containers, such as swimming pools, cisterns, fountains, tanks that have so small-sized leaks that you practically can not locate them.

Aus der Offenlegungsschrift DE 42 19 680 A1 sind Arbeitsweisen bekannt, mit denen Bauteile, wie Behälterwände, Fundamente und dergleichen, die undicht geworden sind, wieder abgedichtet werden können. Neben einer möglichen Neuverfugung, einer Flächenversiegelung oder einer vollständig neuen Innenauskleidung bei Behältern, dient die Verkieselung nach der Bohrlochmethode, bei der bekanntermaßen als Verkieselungsmittel Wasserglaslösungen mit oder ohne Hydrophobierungsmittel und mit faserförmigen Stoffen, beispielsweise mit 0,01 bis 1% Carbonfasern eingesetzt werden, diesem Zweck. Bei allen diesen bisher bekannten Verfahren ist es jedoch erforderlich, zunächst die schadhaften Behälter vollständig zu leeren und eine unter Umständen langwierige Suche nach Leckagen durchzuführen. Das ist zeitraubend und technisch ausserordentlich aufwendig.From the publication DE 42 19 680 A1 Methods are known with which components such as container walls, foundations and the like, which have become leaky, can be re-sealed. In addition to a possible re-grouting, a surface seal or a completely new inner lining in containers, the Verkieselung the borehole method is used in the known as Verkieselungsmittel water glass solutions with or without water repellents and with fibrous materials, for example, with 0.01 to 1% carbon fibers, this Purpose. In all these previously known methods, however, it is necessary first to completely empty the defective containers and to carry out a possibly lengthy search for leaks. This is time consuming and technically extremely complex.

Die Aufgabe der Erfindung liegt darin, ein Mittel und ein Verfahren zur Verfügung zu stellen, das die Sanierung von gering-dimensionierte Undichtigkeiten aufweisenden, mit feststoff-freier wässriger Flüssigkeit permanent gefüllten Behältern ermöglicht, ohne dass eine Entleerung der schadhaften Behälter erforderlich ist.The object of the invention is to provide a means and a method which enables the remediation of small-sized leaks permanently filled with solids-free aqueous liquid containers, without the need for emptying the defective container is required.

Die Aufgabe wird durch das in Anspruch 1 angegebene Verfahren und das in Anspruch 6 angegebene Behältersanierungsmittel gelöst. Weiterbildungen und vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.The object is achieved by the method specified in claim 1 and the specified in claim 6 Behälteranierungsmittel. Further developments and advantageous embodiments will become apparent from the dependent claims.

Für die Durchführung des erfindungsgemässen Sanierungsverfahrens wird das Sanierungsmittel in einer Menge von 0,4 bis 4 Liter pro 1000 Liter Behälterflüssigkeit in die sich in dem zu sanierenden Behälter befindliche Flüssigkeit eingerührt und über einen Zeitraum von etwa 1 bis 5 Tagen darin zirkuliert. Nachdem die Undichtigkeiten abgedichtet sind, wird der überschüssige, für die Sanierung nicht benötigte Faserpulveranteil des erfindungsgemässen Behältersanierungsmittels aus der Behälterflüssigkeit abfiltriert; der überschüssige, für die Sanierung nicht benötigte Anteil an Wasserglaslösung verbleibt in der Behälterflüssigkeit.For carrying out the remediation process according to the invention, the remediation agent is stirred in an amount of 0.4 to 4 liters per 1000 liters of container liquid into the liquid in the container to be sanitized and circulated therein for a period of about 1 to 5 days. After the leaks have been sealed off, the excess fiber powder content of the container refining agent according to the invention, which is not required for the refurbishment, is filtered off from the container liquid; the excess amount of water glass solution not required for the remediation remains in the tank liquid.

Zur Herstellung erfindungsgemässer Behältersanierungsmittel wird das Faserpulver in die in erforderlicher Menge vorgelegte Wasserglaslösung eingerührt. Die so gebildete Dispersion ist - bei Normaltemperatur - praktisch unbegrenzt haltbar.For the preparation of container refining agents according to the invention, the fiber powder is stirred into the waterglass solution introduced in the required amount. The dispersion thus formed is virtually unlimited - at normal temperature.

Die für die vorliegende Erfindung einzusetzenden Wasserglaslösungen sind bekannte Handelsprodukte auf Basis von Alkalisilikaten und Wasser. Sie sind im Handel als mehr oder weniger stark viskose Flüssigkeiten, abhängig insbesondere vom Feststoffgehalt an Alkalisilikat und von der Natur als Natron- oder Kaliwasserglas, erhältlich. Da die Viskositäten von Natronwasserglaslösungen bei vergleichbaren Feststoffgehalten an Alkalisilikat niedriger liegen als die von Kaliwasserglaslösungen, enthalten erfindungsgemässe Behältersanierungsmittel vorzugsweise Natronwasserglas; je niedriger die Viskosität der eingesetzten Wasserglaslösung ist, desto energiesparender lassen sich die Faserteilchen darin dispergieren.The water glass solutions to be used for the present invention are known commercial products based on alkali silicates and water. They are commercially available as more or less viscous liquids, depending in particular on the solids content of alkali metal silicate and of nature as soda or potassium water glass available. Since the viscosities of sodium silicate solutions at comparable solids contents of alkali silicate are lower than those of potassium silicate solutions, containerization agents according to the invention preferably contain sodium silicate; the lower the viscosity of the water glass solution used, the more energy-saving the fiber particles can be dispersed therein.

Als Faserpulver lasst sich für die erfindungsgemässen Zwecke organisches Fasermaterial, insbesondere Cellulose, einsetzen. Vorteilhaft hot das Faserpülver ein relativ geringes Schüttgewicht. Dann lässt as sich besonders gut in der viskosen Wasserglaslösung dispergieren. Das Schüttgewicht der Faserpulverteilchen sollte 200 g/l zweckmässig nicht übersteigen. Aus fibrillierten Cellulosefasern gewonnene Faserpulverteilchen dieser Art haben sich als besonders vorteilhaft für die erfindungsgemässen Zwecke erwiesen. Die Faserpulverteilchen dienen dazu, die an den Leckagen durch Einwirkung der Luftkohlensäure aus dem Wasserglas ausgefällte kolloidale Kieselsäure zu binden, so dass diese an den Leckstellen härten und die Leckstellen verschliessen kann.As fiber powder, organic fiber material, in particular cellulose, can be used for the purposes according to the invention. Advantageously, the Faserpülver hot a relatively low bulk density. Then it is particularly easy to disperse in the viscous waterglass solution. The bulk density of the Faserpulverteilchen should not exceed 200 g / l practical. Fiber powder particles of this type obtained from fibrillated cellulose fibers have proven to be particularly advantageous for the novel compositions Purposes proved. The fiber powder particles serve to bind the precipitated by the action of carbonic acid from the glass of water precipitated colloidal silica, so that they can harden at the leaks and close the leaks.

Der pH-Wert des erfindungsgemässen Behältersanierungsmittels liegt im alkalischen Bereich, bei etwa pH 10 - 10,5 (bei 20° C). Es muss sichergestellt werden, dass beim,Einsatz der erfindungsgemässen Behältersanierungsmittel eine Zersetzung nicht etwa durch saure Bestandteile in der im Behälterbecken befindlichen wässrigen Flüssigkeit erfolgt. Sofern diese Flüssigkeit einen pH-Wert von weniger als etwa pH 9 aufweist, setzt man sicherheitshalber ein erfindungsgemässes Behältersanierungsmittel ein, das zusätzlich bis zu etwa 15 Gew.-% an Natronlauge enthält, um sicherzustellen, dass der pH-Wert von mindestens pH 9 der Behälterflüssigkeit während der Behandlungsdauer mit dem erfindungsgemässen Mittel nicht vermindert wird. Man kann die Natronlauge dem Mittel als solchem zusetzen, oder sie vor Zugabe des Mittels in den flüssigkeitsgefüllten Behälter in die Behälterflüssigkeit einrühren.The pH of the inventive containerization agent is in the alkaline range, at about pH 10 - 10.5 (at 20 ° C). It must be ensured that, when using the container refining agent according to the invention, decomposition does not take place, for example, due to acidic constituents in the aqueous liquid present in the container basin. If this liquid has a pH of less than about pH 9, one uses for safety's sake a container according to the invention, which additionally contains up to about 15 wt .-% of sodium hydroxide solution to ensure that the pH of at least pH 9 of the Container liquid is not reduced during the treatment with the inventive agent. You can add the caustic soda to the agent as such, or stir them before adding the agent in the liquid-filled container in the container liquid.

Aus handelsüblichen Gründen empfiehlt sich weiterhin eine Anfärbung des erfindungsgemässen Behältersanierungsmittels, was zweckmässig durch Zusatz eines vorzugsweise lebensmitteltauglichen Farbstoffs erfolgt. Es lässt sich damit auch die gute Verteilung des Mittels beim Zirkulieren in der Behälterflüssigkeit überprüfen.For commercial reasons, further recommends a staining of the novel Behälteranierungsmittels, which is conveniently carried out by adding a preferably food grade dye. It can thus also check the good distribution of the agent when circulating in the container liquid.

Das erfindungsgemässe Behältersanierungsmittel eignet sich zur Abdichtung von gering-dimensionierten Undichtigkeiten, wie beispielsweise Poren und Haarrisse, bis zu einer Breite von etwa 5 mm. Es können Behälter, insbesondere Grossbehälter,wie beispielsweise Schwimm- und Badebecken aller Art saniert werden, die aus unterschiedlichen Werkstoffen, wie Beton, Stahlbeton, Naturstein, Mauerstein, Verbundmaterial, wie kunststoffbestichtetem Aluminium, oder auch die erforderliche Festigkeit ausweisendem Kunststoffmaterial, wie Polyester(GFK), in beliebiger Beckenkonstruktion erstellt sein können.The container refining agent according to the invention is suitable for sealing small-dimensioned leaks, such as, for example, pores and hairline cracks, up to a width of approximately 5 mm. It can containers, especially large containers, such as swimming pools and baths of all kinds be rehabilitated, made of different materials, such as concrete, reinforced concrete, natural stone, brick, composite material, such as plastic-proofed aluminum, or the required strength ausweisendem plastic material, such as polyester (GFK ), can be created in any pelvic construction.

Bei der Durchführung des erfindungsgemässen Verfahrens, z.B. einer Schwimmbecken-Sanierung, wird zunächst eventuell vorhandener Grobschmutz, z.B. mittels eines Schwimmbeckenboden-Reinigungsgerätes, entfernt. Ölige und fettige Ablagerungen an Becken-rändern und -flächen müssen ebenfalls entfernt werden.In carrying out the process according to the invention, e.g. a pool refurbishment, any coarse dirt, e.g. by means of a pool floor cleaner, removed. Oily and greasy deposits on pelvic edges and surfaces must also be removed.

Es wird sodann der pH-Wert der Beckenfüllung gemessen und gegebenenfalls durch Zugabe von Natronlauge auf pH 9 bis pH 10 einreguliert.It is then measured the pH of the pool filling and optionally adjusted by addition of sodium hydroxide to pH 9 to pH 10.

Es wird vor der Zugabe des erfindungsgemässen Mittels zur Beckenfüllung ausserdem die Wasserhärte der Beckenfüllung ermittelt. Wenn diese höher als 20° dH liegt, erfolgt durch Zugabe von Natronlauge auch die erforderliche Enthärtung. Die Enthärtung kann gewünschtenfalls auch vor der pH-WErt-Einstellung mit beliebigen bekannten Enthärtungsmitteln, beispielsweise Natriumcarbonat, vorgenommen werden. In jedem Fall müssen gebildete Härteausfällungen ebenfalls wie sonstige Verschmutzungen vor der Zugabe des erfindungsgemässen Mittels über die Schwimmbad-eigene Filterpumpe und/ oder mittels des Beckenboden-Reinigungsgerätes entfernt werden. Danach werden Umwälzpumpe und Filter des Schwimmbeckens abgeschaltet bzw. abgesperrt.It is also determined before the addition of the inventive agent for pelvic filling, the water hardness of the basin filling. If this is higher than 20 ° dH, the required softening is also carried out by adding caustic soda. If desired, the softening may also be carried out prior to the pH adjustment with any known softening agents, for example sodium carbonate. In any case, formed hardness precipitates must also be removed like other contaminants before the addition of the inventive agent on the swimming pool own filter pump and / or by means of the pelvic floor cleaning device. Thereafter, circulating pump and filter of the swimming pool are switched off or shut off.

Es wird dann in dem wassergefüllten Schwimmbecken eine Umwälzung ohne Filter hergestellt, beispielsweise mittels einer Grundwasser-Schmutzpumpe oder einer sosntigen Tauchpumpe, die eigens in das schadhafte Schwimmbecken gestellt wrid, und es wird eine Umwälzung (ohne Filter) der Schwimmbecken-Waserfüllung eingeleitet. Alsdann wird das erfindungsgemässe Behältersanierungsmittel in der erforderlichen Menge, in der Regel 0,4 - 4 Liter Mittel pro 1000 Liter Schwimmbecken-Wasserfüllung, dem Füllwasser zugegeben. Die Umwälzung wird dann kontinuierlich über mehrere Tage weiterlaufen gelassen. Dabei wird in Abständen, etwa halbtäglich, auf Wasserverlust des Beckens geprüft. Wenn kein Wasseerverlust mehr festgestellt wird, nach etwa 1 bis 5 Tagen, wird die Umwälzung gestoppt und die dafür eingesetzte Pumpe aus dem Becken abgezogen und entfernt. Danach kann die beckeneigene Filteranlage wieder angestellt werden. Damit oder wahlweise zuvor mit einem gesonderten Filter werden die überschüssigen, für die Ausbesserung der Schadstellen nicht verbrauchten Faseranteile des zugesetzten erfindungsgemässen Behältersanierungsmittels abfiltriert. Der Filter wird zweckmässig rückgespült, um die Faserteilchen daraus zu entfernen. Der überschüssige, nicht verbrauchte Wasserglasanteil aus dem eingesetzten Mittel verbleibt im Beckenwasser.It is then made in the water-filled swimming pool a circulation without a filter, for example by means of a groundwater debris pump or a Sosntigen submersible pump, the wrid specially made in the damaged swimming pool, and it is a circulation (without filter) of the pool Waserfüllung initiated. Then the inventive container remover in the required amount, usually 0.4 - 4 liters of agent per 1000 liters of pool water filling, the filling water is added. The upheaval is then allowed to continue for several days continuously. It is tested at intervals, about half-day, for water loss of the pelvis. If no loss of water is detected, after about 1 to 5 days, the circulation is stopped and the pump used for this withdrawn from the tank and removed. After that, the basin's own filter system can be started again. Thus or optionally previously with a separate filter, the excess, not used for the repair of the damaged areas fiber content of the added inventive container refining be filtered off. The filter is expediently backwashed to remove the fiber particles therefrom. The excess, unused portion of water glass from the agent used remains in the pool water.

Es wird anschliessend durch Zugabe von pH-Sinkern, z.B. Salzsäure, der für das Schwimmbadwasser erforderliche pH-Wert von ca. 7 - 7,5 wieder eingestellt,und die beckeneigene Umwälzeinrichtung wird wieder in Betrieb genommen.It is then subsequently treated by addition of pH sinkers, e.g. Hydrochloric acid, the required for the swimming pool water pH value of about 7 - 7.5 set again, and the bark's own circulating device is put back into operation.

Im folgenden wird das erfidnungsgemässe Vorfahren am Beispiel einer Schwimmbad-Sanierung noch näher erläutert:

  • Ein schadhaftes Schwimmbecken, hergestellt aus Stahlbeton,
  • verfliest und verputzt, mit den Abmessungen Poolgrösse: Länge 7 m, Breite 4 m, Tiefe 2,2 m Füllwassermenge: ca. 62000 Liter
  • hatte einen Wasserverlust von ca. 500 Liter/Tag, der behoben werden sollte.
  • Es wurde festgestellt, dass die Wasserhärte der Poolfüllung 29° dH (bei Wassertemperatur von 20°C) betrug,
  • Der pH-WErt betrug pH 7,1.
In the following, the erfidnungsgemäße ancestor is explained in more detail using the example of a swimming pool renovation:
  • A damaged pool, made of reinforced concrete,
  • tiled and plastered, with dimensions pool size: length 7 m, width 4 m, depth 2.2 m filling water volume: about 62000 liters
  • had a water loss of about 500 liters / day, which should be corrected.
  • It was found that the water hardness of the pool filling was 29 ° dH (at water temperature of 20 ° C),
  • The pH value was 7.1.

Es wurde zunächst das Beckenfüllwasser mit Hilfe einer Enthärtungspatrone behandelt, Danach war die Wasserhärte auf 12° dH gesunken; der pH-Wert betrug danach pH 7,3.First, the tank filling water was treated with the aid of a water softening cartridge, after which the water hardness had dropped to 12 ° dH; the pH was then at pH 7.3.

Durch Zugabe von Natronlauge wurde der pH-Wert des Beckenwassers auf pH 9,8 angehoben. Geringe Härteausfällungen wurden unter Zusatz von Eisensulfat-Flockungsmittel abfiltriert. Alsdann wurde mittels eines unabhängig von der Filterpumpe im Becken arbeitenden Schwimmbeckenboden-Reinigungsgerätes auf dem Beckenboden und an den Becken-Innenwandungen abgesetzter Schmutz entfernt. Danach wurden die beckeneigenen Umwälz- und Filteranlagen abgestellt.By adding sodium hydroxide solution, the pH of the pool water was raised to pH 9.8. Low hardness precipitations were filtered off with the addition of iron sulphate flocculant. Then it was removed by means of a working independently of the filter pump in the pool swimming pool floor cleaning device on the bottom of the pool and on the inner walls of the pool deposited dirt. Thereafter, the basin's own recirculation and filtration systems were turned off.

Mittels einer eigens eingesetzten Tauchpumpe wurden gegen Mittag am ersten Arbeitstag 85 Liter des erfindungsgemässen Behältersanierungsmittels folgender Zusammensetzung 97 Gew.-% Natronwasserglas mit 28,8% Feststoffgehalt und einer Viscosität von 25 mPa.s 2,5 Gew.-% Cellulosefasern mit durchschnittlicher Faserlänge von 150 µm und Faserdicke von 20 µm sowie einem Schüttgewicht von 125 g/l und 0,02 Gew.-% Farbstoff Patentblau By means of a specially used submersible pump, around noon on the first working day, 85 liters of the inventive container refining agent of the following composition 97 wt .-% soda water glass with 28.8% solids content and a viscosity of 25 mPa.s 2.5% by weight of cellulose fibers with average fiber length of 150 microns and fiber thickness of 20 microns and a bulk density of 125 g / l and 0.02% by weight of dye Patent Blue

in das in dem Becken befindliche Beckenwasser eingespeist und unter gleichbleibenden Temperaturbedingungen mit einer Umpumpleistung von 8000 Liter pro Stunde kontinuierlich mit der Beckenflüssigkeit zirkuliert.fed into the pool water located in the basin and continuously circulated under constant temperature conditions with a pumping rate of 8000 liters per hour with the pool liquid.

Am zweiten Arbeitstag wurde in der Mittagszeit noch ein Wasserverlust von 12 cm/Min festgestellt; am dritten Arbeitstag zeigte sich am Morgen noch ein geringer Verlust, am Abend dieses dritten Arbeitstages wurde kein Wasserverlust mehr festgestellt. Auch am vierten Tag nach Arbeitsbeginn wurde kein Verlust mehr festgestellt.On the second working day at midday a water loss of 12 cm / min was detected; on the third working day there was still a slight loss in the morning, and no water loss was noticed on the evening of this third working day. Also on the fourth day after start of work no loss was determined.

Danach wurde die Tauchpumpe abgestellt und entfernt.Then the submersible pump was turned off and removed.

Es wurde die Pool-eigene Filteranlage wieder angestellt und damit der überschüssige, nicht verbrauchte Anteil an Faserpulver des überschüssigen erfindungsgemässen Behältersanierungsmittels aus dem Beckenwasser entfernt. Danach wurde durch Zugabe von Salzsäure der pH-Wtrt des Beckenwassers auf pH 7,1 eingestellt und die Anlage wurde wieder in Betrieb genommen. Überschüssiges, nicht verbrauchtes Wasserglas aus dem eingesetzten Behältersanierungsmittel verblieb im Beckenwasser.It was the pool-own filter system turned on again and thus the excess, unused portion of fiber powder of the excess inventive container refining agent removed from the pool water. Thereafter, the pH value of the pool water was adjusted to pH 7.1 by addition of hydrochloric acid and the system was put back into operation. Excess, unused water glass from the container refining agent used remained in the pool water.

Die Anlage wurde während der drei folgenden Monate beobachtet; es wurde in dieser Zeit kein Wasserverlust festgestellt. The plant was observed during the following three months; no water loss was detected during this time.

Claims (7)

  1. Method for restoring defective containers, filled with a solid-free liquid, by means of a container restoration agent which consists of an aqueous dispersion, the liquid phase of which is a water-glass solution, and the solid phase of which consists of fibre powder particles which are insoluble in the water-glass solution at temperatures of up to 50 °C, the composition having 95-98 wt.% water-glass solution and 2-5 wt.% fibre powder, characterised by the following method steps:
    a) the agent is added to the container liquid in an amount of between 0.4 to 4 litres per 1000 litres at a temperature of between 10 and 30 °C,
    b) the agent is continuously circulated in the container liquid over a period of between 1 and 5 days,
    c) the liquid loss of the container is monitored during this time period at regular intervals,
    d) if it is found that liquid is no longer being lost from the container, the circulation of the container liquid is stopped, and the excess fibre powder that is still present therein is filtered out of the container.
  2. Method according to claim 1, characterised in that the aqueous liquid is softened before the container restoration agent is added to the container liquid, advantageously by adding sodium carbonate.
  3. Method according to either claim 1 or claim 2, characterised in that the pH value of the container liquid is set at between pH 9 and pH 10, advantageously by adding sodium hydroxide solution.
  4. Method according to any of claims 1 to 3, characterised in that contaminants in the container liquid and/or on the inner wall of the container and/or at the bottom of the container are removed before the restoration agent is added to the container liquid.
  5. Method according to any of claims 1 to 4, characterised in that, after the excess fibre powder is filtered out after the circulation of the agent in the container liquid is stopped, contaminants in the container liquid and/or at the bottom of the container are removed and the pH value of the container liquid is reduced to the initial value by adding pH reducing agents.
  6. Container restoration agent consisting of an aqueous dispersion, the liquid phase of which is a water-glass solution, and the solid phase of which consists of fibre powder particles which are insoluble in the water-glass solution at temperatures of up to 50°C, the composition having 95-98 wt.% water-glass solution and 2-5 wt.% fibre powder, characterised in that up to 15 wt.% sodium hydroxide solution is also present.
  7. Container restoration agent according to claim 6 for carrying out the method according to any of claims 1 to 5, characterised in that the fibre powder is a cellulose fibre powder which consists of particles having an average fibre length of between 150 and 600 µm and an average fibre thickness of between 20 and 30 µm, and which has a powder density of between 100 and 200 g/l.
EP06090146.9A 2006-08-23 2006-08-23 Container restoration agent and method of restoring containers filled with aqueous fluid Active EP1892349B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06090146.9A EP1892349B1 (en) 2006-08-23 2006-08-23 Container restoration agent and method of restoring containers filled with aqueous fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06090146.9A EP1892349B1 (en) 2006-08-23 2006-08-23 Container restoration agent and method of restoring containers filled with aqueous fluid

Publications (2)

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EP1892349A1 EP1892349A1 (en) 2008-02-27
EP1892349B1 true EP1892349B1 (en) 2016-01-20

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EP06090146.9A Active EP1892349B1 (en) 2006-08-23 2006-08-23 Container restoration agent and method of restoring containers filled with aqueous fluid

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EP (1) EP1892349B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015203599A1 (en) * 2015-02-27 2016-09-01 Bacoga Technik Gmbh Liquid sealant for heating systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE734688C (en) * 1937-10-29 1943-04-21 Siemens Bauunion Gmbh Method for protecting concrete containers
US5165958A (en) * 1989-10-12 1992-11-24 Fosroc International Limited Method for the sealing of mine stoppings
DE4219680C2 (en) 1992-06-16 1999-01-14 Johann Memmen Process for silicification and waterproofing of masonry

Also Published As

Publication number Publication date
EP1892349A1 (en) 2008-02-27

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