DE4204697A1 - Water hardness and pH long term control e.g. in ponds, fish tanks etc. - by circulating part of water through ion exchange unit for reduced mineral content and volume of water circulated is regulated in relation to pH value - Google Patents

Water hardness and pH long term control e.g. in ponds, fish tanks etc. - by circulating part of water through ion exchange unit for reduced mineral content and volume of water circulated is regulated in relation to pH value

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Publication number
DE4204697A1
DE4204697A1 DE4204697A DE4204697A DE4204697A1 DE 4204697 A1 DE4204697 A1 DE 4204697A1 DE 4204697 A DE4204697 A DE 4204697A DE 4204697 A DE4204697 A DE 4204697A DE 4204697 A1 DE4204697 A1 DE 4204697A1
Authority
DE
Germany
Prior art keywords
water
hardness
exchange unit
ponds
term control
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.)
Withdrawn
Application number
DE4204697A
Other languages
German (de)
Inventor
Harald Winkler
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE4204697A priority Critical patent/DE4204697A1/en
Publication of DE4204697A1 publication Critical patent/DE4204697A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/14—Controlling or regulating
    • B01J47/15—Controlling or regulating for obtaining a solution having a fixed pH
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
    • G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/05—Conductivity or salinity
    • C02F2209/055—Hardness
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH

Abstract

In a new procedure for regulating the hardness and pH of water, a pH meter controls a water circuit containing an ion-exchange unit which greatly reduces the salt content of the circulated water before returning it to the main body of water. Also claimed is an application of this procedure to the long-term control of the hardness and pH of water, in which a circulating pump (P) delivers or draws a volume of water through an ion-exchange unit (VE) and then returns it to the main body of water. The flow rate of water through the pump is controlled by a pH measuring system (F,PHR). USE/ADVANTAGE - For long-term control of the hardness and pH of water, in fish tanks, ponds, etc. This is achieved in an accurate and economical manner without the addn. of chemicals, e.g. carbonic acid - to the water.

Description

Die Erfindung betrifft die Regelung der Härte und des pH- Wertes in Wasser in den sauren Bereich, gemäß dem Oberbegriff des Hauptanspruchs.The invention relates to the regulation of hardness and pH Value in water in the acidic range, according to the generic term of the main claim.

Der Härtegrad und der pH-Wert im Wasser von Aquarien, Teichen und ähnlichen stehenden Gewässern steigt häufig bei längeren Standzeiten an. Dies ist darauf zurückzuführen, daß beim Verdunstungsprozeß des Wassers die härtebildenden Teile im Wasser verbleiben und beim Nachfüllen immer wieder Wasser mit neuen härtebildenden Teilen hinzugefügt wird. Die Folge hiervon ist ein Anstieg der Gesamthärte und des pH-Wertes, der bei z. B. Fischen und Pflanzen gesundheitliche Schäden verursacht, die sich im Hinblick auf Lebensdauer und Vitalität negativ auswirken.The degree of hardness and the pH in the water of aquariums, ponds and similar stagnant water often rises with longer ones Downtimes. This is due to the fact that the Evaporation process of the water in the hardness forming parts Water remains and always water when refilling new hardness-forming parts is added. The consequence of which is an increase in total hardness and pH that at z. B. Fish and plant health damage causes that in terms of lifespan and vitality have a negative impact.

Die Folge von allgemein bekannten Umweltverhältnissen ist vielerorts das Expandieren von stehenden Gewässern in den alkalischen Bereich. Hier will die betreffende Erfindung für adäquate Abhilfe sorgen.The consequence of well-known environmental conditions is in many places the expansion of standing water in the alkaline range. Here, the invention in question for provide adequate remedy.

Bekannte Vorrichtungen zur Regelung des pH-Wertes in den neutralen oder sauren Bereich arbeiten mit Hilfe von Chemikalien - was sich hier als wenig praktikabel erweist - oder mit Kohlensäure, die aus Gasflaschen dem Wasser zugeführt wird.Known devices for regulating the pH in the neutral or acidic range work with the help of Chemicals - which turns out to be less practical here - or carbonated water supplied from gas cylinders becomes.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Weg zu finden, bei dem weder Chemikalien - s. o. - noch Kohlensäure aus Flaschen - u. a. zu häufiges Austauschen nötig - zu einer langfristigen, automatischen Regelbarkeit der Härte und des pH-Wertes in den sauren Bereich führt.The invention is therefore based on the object of finding a way find where neither chemicals - s. o. - still carbon dioxide from bottles - u. a. too frequent replacement necessary - to one long-term, automatic controllability of hardness and pH value in the acidic range.

Diese Aufgabe wird erfindungsgemäß gelöst durch die Verwendung eines Ionenaustauschers/Vollentsalzers, der mit einer Umwälzpumpe versehen ist, dessen Auslaß auf einen pH- Meßfühler gerichtet ist, die ihrerseits über einen pH- Dauerregler - auch als Festeinsatz möglich - die Tätigkeit eingangs genannter Umwälzpumpe regelt, und somit für deren Betrieb im Bedarfsfall sorgt. This object is achieved by the Use of an ion exchanger / demineralizer that works with a circulation pump, the outlet of which is at a pH Sensor is directed, which in turn over a pH Permanent control - also possible as a fixed assignment - the activity regulates the aforementioned circulation pump, and thus for their Operation in case of need ensures.  

Hierdurch wird etwas enthärtetes, saures Wasser der Gesamtmenge zugeführt, was ein Absinken des pH-Wertes der Gesamtwassermenge zur Folge hat. (Wenn jedoch bei umgekehrter Problematik zu weiches Wasser ständig härter gemacht werden soll, ist dieses Prinzip durch Verwendung eines entsprechenden Ionentauschers ebenfalls einsetzbar.)This will soften some of the softened, acidic water Total amount supplied, which is a decrease in the pH of the Total water volume results. (However, if the reverse is the case The problem of water that is too soft is made ever harder this principle is by using an appropriate one Ion exchanger can also be used.)

Im folgenden werden bevorzugte Ausführungsbeispiele der Erfindung anhand der beigefügten Skizze näher erläutert.Preferred embodiments of the Invention explained with reference to the accompanying sketch.

Fig. 1 zeigt den unter A beschriebenen Wasserkreislauf der Erfindung. Fig. 1 shows the water cycle of the invention described under A.

Fig. 2 zeigt den unter B beschriebenen Regel- und Versorgungsstromkreislauf der Erfindung. Fig. 2 shows the control and power supply circuit described in B of the invention.

Fig. 3 zeigt eine mögliche Installation der Erfindung außerhalb des Behälters. Fig. 3 shows a possible installation of the invention outside the container.

Fig. 4 zeigt eine mögliche Installation der Erfindung innerhalb des Behälters - Teich etc. Fig. 4 shows a possible installation of the invention within the container - pond etc.

Fig. 1: Im wesentlichen handelt es sich hierbei um 2 getrennte Kreisläufe. Fig. 1: Essentially, these are 2 separate circuits.

  • A) Der Wasserkreislauf führt über Leitung LA aus dem Behälter in den Ionentauscher/Vollentsalzer VE, in dem die Reduzierung der Härte und des pH-Wertes durch Erzeugung von Kohlensäure stattfindet. Über die Verbindungsleitung LP wird das enthärtete Wasser im Bedarfsfall von der Pumpe P angesaugt und über die Leitung LZ in Richtung des pH- Meßfühlers gepumpt.A) The water circuit leads from the tank via line LA in the ion exchanger / demineralizer VE, in which the Reduction of hardness and pH through generation of carbonic acid takes place. Via the connecting line LP If necessary, the softened water is pump P sucked in and via the line LZ in the direction of the pH Pumped sensor.
  • B) Der Meßkreislauf, der letztlich den Wasserkreislauf regelt, beginnt bei Meßfühler F, dessen Meßergebnis über die Elektroleitung EM zum pH-Dauerregler PHR - hier kann auch ein Festbaustein installiert werden - weitergegeben wird. Dieses Gerät wiederum steuert über das Stromzufuhrkabel EP die Tätigkeit der Pumpe, die im Bedarfsfall für kurze Zeit eingeschaltet wird und somit für ein Ausströmen des Wassers, wie unter A beschrieben, sorgt.B) The measuring circuit that ultimately regulates the water cycle, starts with sensor F, the measurement result of which Electric cable EM to the pH permanent controller PHR - here too a fixed component can be installed - passed on. This device in turn controls via the power supply cable EP the activity of the pump, if necessary for a short time is switched on and thus for an outflow of the Water, as described under A, provides.

Der in Fig. 3 gemachten Ausführung ist hinzuzufügen, daß es auch durchaus möglich ist, die Pumpe innerhalb des Behälters, abgekoppelt vom Ionentauscher/Vollentsalzer zu betreiben. Hierbei sowie bei Fig. 4 sei angemerkt, daß die Richtlinien des VDE zu beachten sind.The embodiment made in FIG. 3 is to be added that it is also entirely possible to operate the pump inside the container, decoupled from the ion exchanger / demineralizer. It should be noted here and in FIG. 4 that the guidelines of the VDE must be observed.

Zur Arbeitsweise der beschriebenen Erfindung sei darauf hingewiesen, daß die Wirksamkeit des Ionentauschers/ Vollentsalzers gegenüber des z. B. Enthärtungsverfahrens über Kohlensäure über einen wesentlich längeren Zeitraum vorhanden ist, sich aber auch durch die Erschöpfung der enthaltenen Kristalle irgendwann einmal einstellt. Dies wird durch einen Farbumschlag - Indikator - des Granulats angezeigt - die Kristalle müssen dann nach bekanntem Verfahren - Salzsäure - neutralisiert werden, um den Ionentauscher/Vollentsalzer wieder voll einsatzfähig zu machen.For the operation of the described invention is on indicated that the effectiveness of the ion exchanger / Demineraliser compared to the z. B. Softening process over Carbonic acid is present over a much longer period is, but also by the exhaustion of the contained Crystals at some point. This is done by a Color change - indicator - of the granules - the Crystals then have to be processed using a known method - hydrochloric acid - be neutralized to the ion exchanger / demineralizer to make it fully operational again.

Neben der längerfristigen Arbeitsweise, nach dem in dieser Erfindung beschriebenen Verfahren, liegen weitere Vorteile in seiner Ungefährlichkeit gegenüber der Neutralisation mit chemischen Substanzen und im wesentlich geringeren Kostenniveau gegenüber der pH-Wert-Regelung in den sauren Bereich mit Kohlensäure aus Gasflaschen.In addition to the longer-term method of working, according to this Methods described invention, further advantages are in its harmlessness to neutralization with chemical substances and much less Cost level compared to the pH regulation in the acidic Carbonated area from gas cylinders.

Claims (4)

1. Regelung der Härte und des pH-Wertes in Wasser in den sauren (oder alkalischen) Bereich, gekennzeichnet durch einen pH-Meter gesteuerten Regelkreis mittels Vollent­ salzer, der dem Wasser stark entsalzenes Wasser hinzufügt.1. Control of the hardness and the pH value in water in the acidic (or alkaline) range, characterized by a pH-meter-controlled control circuit by means of de-salting agent, which adds strongly desalinated water to the water. 2. Verfahren zur langfristigen, automatischen Regelung der Härte und des pH-Wertes in Wasser nach Anspruch 1, dadurch gekennzeichnet, daß eine Kreiselpumpe eine durch pH- Einstab-Meßkette gesteuerte Wassermenge durch einen Vollentsalzer drückt oder saugt und so entsalztes Wasser in das übrige Medium einbringt.2. Procedure for long-term, automatic regulation of Hardness and pH in water according to claim 1, characterized characterized in that a centrifugal pump has a pH Single-rod electrode controlled amount of water by a Demineraliser presses or sucks and so desalinated water brings in the rest of the medium. 3. Verfahren zur langfristigen, automatischen Regelung der Härte und des pH-Wertes in Wasser nach Anspruch 1 oder 2, gekennzeichnet durch die Wirkungsweise der durch den Steuerkreislauf bedingten, im Wirkungskreis ausgestoßenen, vollentsalzten Wassermenge, die sich mit der übrigen Wassermenge des Behälters (Aquarium, Teich etc.) vermischt und somit zur Senkung des pH-Wertes des gesamten Mediums beiträgt.3. Procedure for long-term, automatic regulation of Hardness and pH in water according to claim 1 or 2, characterized by the mode of operation of the Control circuit-related, expelled in the sphere of influence, demineralized amount of water that mixes with the rest The amount of water in the tank (aquarium, pond, etc.) is mixed and thus to lower the pH of the entire medium contributes. 4. Verfahren zur langfristigen, automatischen Regelung der Härte und des pH-Wertes in Wasser nach Anspruch 1 oder 2 oder 3, gekennzeichnet durch genannte Funktion und Arbeitsweise kann auch gegenüber der dargestellten Regelung in den sauren Bereich unter Verwendung eines entsprechenden Ionentauschers in den alkalischen Bereich (invers) regeln.4. Procedure for long-term, automatic regulation of Hardness and pH in water according to claim 1 or 2 or 3, characterized by said function and Operation can also be compared to the scheme shown in the acidic range using an appropriate Regulate the ion exchanger in the alkaline range (inverse).
DE4204697A 1992-02-17 1992-02-17 Water hardness and pH long term control e.g. in ponds, fish tanks etc. - by circulating part of water through ion exchange unit for reduced mineral content and volume of water circulated is regulated in relation to pH value Withdrawn DE4204697A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4204697A DE4204697A1 (en) 1992-02-17 1992-02-17 Water hardness and pH long term control e.g. in ponds, fish tanks etc. - by circulating part of water through ion exchange unit for reduced mineral content and volume of water circulated is regulated in relation to pH value

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4204697A DE4204697A1 (en) 1992-02-17 1992-02-17 Water hardness and pH long term control e.g. in ponds, fish tanks etc. - by circulating part of water through ion exchange unit for reduced mineral content and volume of water circulated is regulated in relation to pH value

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DE4204697A1 true DE4204697A1 (en) 1993-08-19

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DE4204697A Withdrawn DE4204697A1 (en) 1992-02-17 1992-02-17 Water hardness and pH long term control e.g. in ponds, fish tanks etc. - by circulating part of water through ion exchange unit for reduced mineral content and volume of water circulated is regulated in relation to pH value

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0806244A2 (en) * 1996-05-07 1997-11-12 Ecografica S.r.l. Process for controlling the pH value op liquids used in industrial processes and system for carrying out the process
WO2014155267A1 (en) * 2013-03-25 2014-10-02 Koninklijke Philips N.V. Method of controllable water softening and water softening system
CN104891604A (en) * 2015-05-19 2015-09-09 合肥天鹅制冷科技有限公司 Deionizer application system
CN105409835A (en) * 2015-11-05 2016-03-23 常州市武进区水产技术推广站 Method for industrial circulating flowing water breeding system in fishery

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0806244A2 (en) * 1996-05-07 1997-11-12 Ecografica S.r.l. Process for controlling the pH value op liquids used in industrial processes and system for carrying out the process
EP0806244A3 (en) * 1996-05-07 1998-01-14 Ecografica S.r.l. Process for controlling the pH value op liquids used in industrial processes and system for carrying out the process
WO2014155267A1 (en) * 2013-03-25 2014-10-02 Koninklijke Philips N.V. Method of controllable water softening and water softening system
CN104891604A (en) * 2015-05-19 2015-09-09 合肥天鹅制冷科技有限公司 Deionizer application system
CN105409835A (en) * 2015-11-05 2016-03-23 常州市武进区水产技术推广站 Method for industrial circulating flowing water breeding system in fishery

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