DE102010044966A1 - Manufacturing beverage, comprises processing fresh water into beverage water, preferably brewing water for producing beer, comprising e.g. producing saturated, lime water containing process solution, and producing a beverage water stream - Google Patents

Abstract

Manufacturing beverage (8), comprises processing fresh water into beverage water, preferably brewing water for producing beer, comprising: producing at least one saturated, lime water containing process solution by saturating a first partial stream (1) of fresh water with lime; mixing at least a partial volume of the process solution in a second partial stream (2) of fresh water in a predetermined mixing ratio, for producing a beverage water stream; and subsequently producing the beverage from the beverage water of the beverage water stream in a beverage manufacturing process. Manufacturing beverage (8), comprises processing fresh water into beverage water, preferably brewing water for producing beer, comprising: producing at least one saturated, lime water containing process solution by saturating a first partial stream (1) of fresh water with lime, preferably by adding lime milk into the fresh water of the first partial stream; mixing at least a partial volume of the process solution in a second partial stream (2) of fresh water in a predetermined mixing ratio, for producing a beverage water stream; and subsequently producing the beverage from the beverage water of the beverage water stream in a beverage manufacturing process. The process solution and/or the beverage water of the beverage water stream are clarified by membrane filtration in an apparatus for membrane filtration. An independent claim is also included for a beverage manufacturing plant for carrying out the beverage manufacturing process, comprising a lime saturation device, preferably a lime saturation container and/or a mixer, for forming at least one process solution, a pipeline system (20) with a pipeline for discharging the saturated first partial stream from the lime saturation device, a dosing area for mixing at least the partial volume of the process solution with the second partial stream of fresh water to form beverage water stream, and a beverage production system (7) for subsequently manufacturing the beverage from the beverage water of the beverage water stream in a beverage manufacturing process, where at least one device for membrane filtration of the process solution and/or the beverage water stream, is provided on the pipeline system.

Description

The invention relates to a beverage production process and a beverage production plant for carrying out the process. The beverage production process comprises the following process steps:
Preparing fresh water to beverage water, in particular brewing water for the production of beer, by preparing at least one saturated lime water containing process solution by saturating, preferably saturating, a first partial stream of fresh water with lime, preferably by adding lime in the fresh water of the first partial stream, and mixing at least a partial volume of the process solution in a second partial flow of the fresh water in a predetermined mixing ratio for producing a beverage water flow. Subsequently, a beverage is made from the beverage water of the beverage water stream in a beverage manufacturing process.

Such a beverage manufacturing process is from beer production, i. H. brewing beer, known. Both in the field of water decarbonization, d. H. In lime precipitation systems, as well as in beverage production, calcium plays an important role in several respects, so it is of interest to produce clear process solutions from white lime hydrate - a commercial solid. For example, in the beer production process, the calcium content in the brewing water at various stages of the production process is of crucial importance for the quality of the beer to be brewed. In addition to influencing the mash pH value, calcium improves the enzyme's activity, supports the formation of the boil and stimulates yeast multiplication and flocculation. Also important is the early precipitation of oxalates in the beer production process by calcium, which is necessary to avoid or reduce a technologically induced spontaneous foaming of the beer when opening a beer bottle, so called secondary Gushing.

In order to increase the calcium content of the brewing water, in particular in wort and beer, and / or to achieve a defined calcium content in the brewing water is in the DE 10 2005 061 492 B1 a generic method for the treatment of brewing water proposed in a beverage manufacturing process. In this case, after a saturation of the fresh water with lime in a Kalksättiger, in particular by the addition of lime, a hardening of brewing water to be treated fresh water with non-carbonate hardness, ie an enrichment of CaSO ₄ and CaCl ₂ made. Saturation is understood to mean subsaturation, saturation or supersaturation of the fresh water with lime. A lime-saturator is a container in which the lime-mixed fresh water is stored. The fresh water to be filtered remains in the container until the blended milk of lime has settled and the saturated lime water can be removed from the container in a cloud-free clear state. The process described is carried out in a flow process. For hardening while hydrochloric acid HCl and / or sulfuric acid H ₂ SO _{4 is added to} the saturated fresh water stream, so that a process solution with a high CaSO ₄ and CaCl ₂ concentration is formed, which is added to a second fresh water stream to obtain a brewing water stream with defined chemical properties , whereby a beverage produced therefrom has consistent quality properties. This preparation of the fresh water is usually carried out at least with respect to the addition of hydrochloric acid HCl and / or sulfuric acid H ₂ SO ₄ during the flow of the saturated fresh water through a conduit system. In this case, especially in the treatment of large volumes of fresh water, problems can occur in the exact setting of a stable pH of the brewing water or the process solution. Further, with a high water flow rate through the Kalksättiger, so large beverage production volumes, turbidity of the saturated fresh water flow can not always be avoided, since the residence time of the water in Kalksättiger decreases with increasing throughput volume and so complete sedimentation of lime particles in the water is not always guaranteed.

Cost-intensive in the production of the process solution is therefore the clarification of the lime water, which is usually sedimentation z. B. in lime saturators, since this requires large containers due to the low maximum possible flow rate. In addition, especially in the limit load range of such sedimentation facilities or even with frequent switching on and off the quality problems in the form of hazy processes that can lead to considerable difficulties in subsequent processes.

The invention has for its object to provide a beverage production process and a beverage production plant, which avoid disadvantages of the prior art, in particular wherein a turbidity of the beverage to be produced should be reliably avoided even at high beverage production quantities and / or undefined entry of alkalinity to be avoided.

This object is achieved by the method and the device according to the claims. The dependent claims represent preferred embodiments of the invention.

A beverage production process according to the invention comprises the following process steps:
Preparation of fresh water to beverage water, in particular brewing water for the production of beer, by
Producing at least one process solution containing saturated lime water by saturating, preferably saturating, a first partial stream of the fresh water with lime, preferably by adding lime milk into the fresh water of the first part stream,
Mixing at least a partial volume of the process solution into a second partial stream of the fresh water in a predetermined mixing ratio for producing a beverage water stream, and subsequently producing a beverage from the beverage water of the beverage water stream in a beverage production process.

Under the beverage water is understood to mean that with z. B. flavors is mixed to produce a finished drink. In this case, the process solution is understood to mean the fresh water saturated with lime of the first partial stream, it also being possible for there to already contain added acids therein. The process solutions may each have different degrees of limescale saturation and / or acid additions, i. H. Different acids can be added in different amounts to form the process solutions.

Fresh water is water that is suitable for the production of food. For example, it may be tap water or water from a suitable well. The fresh water can also z. B. be pretreated in a reverse osmosis process. As drinking water, the treated fresh water is referred to, as it is used below for beverage production. It must be in the beverage production process is not a brewing in the true sense of z. B. beer brewing act. The beverage production process can also z. B. concern the production of a soft drink, such as table water.

According to the invention, the process solution and / or the beverage water of the beverage water stream is clarified by membrane filtration in a device for membrane filtration. Of course, several membrane filters can be used.

It is such dull-free and clear, saturated with lime, ie water containing white chalk hydrate derived as filtrate from the membrane filtration. In particular, a clear process solution of white-lime hydrate is produced by the membrane filtration. The inventive method provides as a process solution undersaturated or saturated lime water or in a special embodiment process solution containing CaSO ₄ and / or CaCl ₂ , the advantageous z. B. can be used for beer production to increase the non-carbonate hardness.

In this way, large quantities of fresh water can be processed into process solutions in a short time. The saturation of the first partial stream of fresh water with lime takes place in a simple manner by adding lime milk into the first partial stream. The latter can be found both in a calcifier, d. H. a settling tank, as well as directly by introducing the milk of lime into a line carrying the first partial flow. If the addition of lime milk is made in the first partial stream without the use of a settling tank, then the inventive method can be carried out in a particularly space-saving running beverage production plant.

If at least one of the process solutions and / or the beverage water is clarified by membrane filtration, even larger amounts of process solution can be provided per unit time, since then the time-consuming settling process for clarifying the saturated lime water in the settling tank no longer has a quantitative effect. The membrane filtration is performed through a membrane filter, which is a filter with at least one microporous membrane, which is used as a filter.

The membrane filtration is advantageously a microfiltration, preferably an ultrafiltration, whereby a complete filtering of water-tainting lime particles is made possible. A distinction is made between microfiltration, nanofiltration and ultrafiltration over the degree of separation. If particles with the size 0.5-0.1 microns are separated, it is called microfiltration, the particles are 0.1-0.01 microns in size, then it is referred to as ultrafiltration. Very advantageously, the device for membrane filtration in the overflow (crossflow) is operated. As a result, an always sufficient amount of the saturated clear limestone water, i. H. the process solution for removal from the membrane filtration provided as a filtrate.

Particularly preferably, after the addition of lime milk into the fresh water of the first partial flow, the first partial flow passes through a preferably static mixer for saturating the lime water of the process solution. As a result, a better mixing of the milk of lime with the fresh water of the first partial flow is achieved in a direct introduction of the milk of lime into a line carrying the first partial flow. A mixer is a flow-through element with internal structures that causes turbulence in the mixer through flowing liquid. The mixer is referred to as static, if the internal structures static, ie not z. B. electrically driven, are executed. Such internal structures can, for. B. form partially overlapping in the flow direction Anströmflächen.

If the membrane filtration of the process solution is carried out immediately after passing through the mixer, lime deposits within a line carrying the first partial flow are largely avoided. By "immediate" is meant in particular that no addition of an acid between the mixer and the membrane filtration of the process solution in the mixed with lime milk first part stream, d. H. the process solution is made.

Advantageously, recirculation of saturated lime water and / or filter retentate from the membrane filtration device to a lime milk mixing device for lime milk admixing can be carried out. In the Kalkmilchmischvorrichtung the milk of lime is mixed for addition in the first part stream of fresh water. It is about 5 to 50 weight percent lime mixed in water in a container of Kalkmilchmischvorrichtung, in particular stirred. As a result, a supersaturated milk of lime, which has a thick consistency, is provided for addition to the first partial stream. The highly concentrated milk of lime is diluted to a concentration of 0.1 to 5% via the first partial stream and fed into this mixer to the static mixer.

The process solutions can each be introduced into a storage tank prior to addition to the second partial stream, so that a buffering of the process solution quantities with fluctuating beverage production quantity and / or a bridging of downtime, eg. As in cleaning and Kalkneuansatz, is possible.

In general, the addition of at least one acid, in particular HCl and / or H ₂ SO ₄ , and / or CO ₂ , can be carried out almost anywhere. For example:
Before the membrane filtration and / or in the fresh water streams and / or behind the membrane filtration before storing the process solution in a reservoir and / or in the second freshwater partial stream after adding lime water and / or in process solution streams after passing through pumps for their addition to individual beverage production steps , For this purpose, corresponding dosage points are provided on the line system at a beverage production plant according to the invention.

At least one acid, in particular HCl and / or H ₂ SO ₄ , is preferably added to at least one of the process solutions. The acid can be added to the process solution before or after the microfiltration, in particular before a possible storage. Preferably, the acid is added before the membrane filtration, since then occurring precipitates are filtered out of the process solution. It can also be the first or the second partial stream of the fresh water at least one acid, in particular HCl and / or H ₂ SO ₄ are added and / or it may be the drink water at least one acid, in particular HCl and / or H ₂ SO ₄ are added , There is thus a hardening of the fresh water to be treated with beverage water with non-carbonate hardness, ie an enrichment of CaSO ₄ and CaCl ₂ in the beverage water. For readjustment of the CaSO ₄ and CaCl ₂ concentration, HCl and / or H ₂ SO _{4 may be} added to the second partial stream and / or to the beverage water stream.

It can be made a storage of at least one of the process solutions in each case a container, in particular for their addition to the beverage water during the beverage production process. The stocking makes it possible to produce the process solution in consistent quantities and thus particularly stable. The storage takes place in each case one storage tank per process solution, the storage tanks are preferably made of plastic or stainless steel. Further, if necessary, a change in the water hardness of the beverage water in various stages of the preparation of the beverage can be made. This storage also enables the availability of the process solutions during a Kalkneuansatzes and / or a cleaning of the membrane filter device.

Particularly preferably, during the preparation of the fresh water to beverage water in one of the partial streams and / or in at least one of the process solutions and / or before the production of the beverage in the beverage water stream CO ₂ added, ie initiated. The CO ₂ addition can be made in a given amount or can be controlled variably.

As a result, the quality of the beverage water can be adjusted exactly and consistently, so that a beverage produced from it always has consistent properties after its production. The setting of a stable pH in process solution and thus in the beverage water is improved by the addition of CO ₂ . CO ₂ increases the buffering capacity of the beverage water in the neutral range. The CO ₂ metering can z. B. in the range of 1 to 5 meq per liter. The process according to the invention makes it possible to significantly improve the control of the process of formation of CaSO ₄ and / or CaCl ₂ from the reaction of Ca (OH) ₂ with hydrochloric acid HCl and / or sulfuric acid H ₂ SO ₄ in the process solution and / or in the beverage water. The CO ₂ is used to stabilize the pH in the process solution z. B. for beer and / or in beverage water in connection with the targeted hardening of the process solution and / or the beverage water by the reaction of Ca (OH) ₂ with hydrochloric acid HCl and / or sulfuric acid H ₂ SO ₄ used.

The CO ₂ can be metered into the lime-saturated first partial stream and / or into at least one of the process solutions and / or into the beverage water stream. As a result, the metered addition after leaching with lime, whereby the metered CO ₂ content can not decrease uncontrolled during the saturation process.

Advantageously, the CO _{2 is added} after the addition of the acid, in particular of HCl and / or H ₂ SO ₄ , whereby the hardening and thus the pH to be set still during the reaction of the acids with the lime dissolved in the water, ie Ca ( OH) ₂ , can be specifically controlled and influenced. In addition, CaCO ₃ precipitations are avoided.

The buffering of the water is preferably increased via the addition of CO ₂ and thus facilitates the establishment of a stable pH by the acids H ₂ SO ₄ and / or HCl. The addition of CO ₂ is usually not via a pH control. Preferably, a feedback of the pH to the dosage of H ₂ SO ₄ and / or HCl. The metered addition of CO ₂ can be regulated in such a way that a predetermined pH value is set in the beverage water. For this purpose, preferably the pH value in the beverage water is measured and adjusted via a control and / or feedback control, the CO ₂ addition, so that the pH remains permanently in the drink.

The inventive method is particularly suitable for use in beer brewing. Brewing water for the production of beer is then produced as beverage water. Preferably, at least one of the process solutions is added to the beverage water in at least one beer preparation step, in particular the mashing and / or refining and / or wort boiling, whereby a finer tuning of the beer quality is possible.

For monitoring and / or regulating the method steps of the method according to the invention, a pH measurement and / or a measurement of the electrical conductivity of the beverage water and / or the clarified saturated lime water and / or at least one of the process solutions can be made. For example, with an electrical conductivity of less than 8 millisiemens per cm of process solution after membrane filtration, it can be concluded that the concentration of lime in the process solution has dropped below the saturation limit, which should make it possible to add lime or make a new lime milk.

A beverage production plant according to the invention is set up to carry out the beverage production process according to the invention. The beverage production plant has a Kalkabsättigungsvorrichtung, preferably a Kalksättigungsbehälter and / or a mixer. Of course, several Kalkabsättigungsvorrichtungen may be present. The Kalkabsättigungsvorrichtung is for forming at least one process solution by saturating a first partial stream of fresh water with lime, preferably by adding lime in the first partial flow furnished. It is a line system with a line for discharging the saturated first partial stream from the Kalkabsättigungsvorrichtung, and a metering point for mixing at least a partial volume of the process solution in a second partial stream of fresh water in a predetermined mixing ratio to form a beverage water stream provided. Furthermore, a beverage production plant is provided for the subsequent production of a beverage from the beverage water of the beverage water stream in a beverage production process.

According to the invention, at least one device for membrane filtration of the process solution and / or the beverage water stream is provided on the line system.

In this case, at least one branch for the addition of at least one acid, in particular of HCl and / or H ₂ SO ₄ , is preferably provided on the line system, preferably in at least one of the process solutions and / or in the beverage water stream.

In a particularly advantageous embodiment of the beverage production plant according to the invention at least one device for metered addition of CO _{2 is} provided on the line system and / or the Kalkabsättigungsvorrichtung.

It goes without saying that process steps according to the invention are also covered by the beverage production method, which provide for the direct use of one or more process solutions without mixing with fresh water (second partial stream) for the production of a beverage or any other stream of industrial water. Moreover, the beverage production process according to the invention is also for the production of Fully suitable process solutions that do not have drinking water quality, ie can not be used as drinking water. In the method according to the invention, a container may be provided in front of or behind the static mixer or instead of the static mixer into which the lime milk / fresh-water mixture is introduced before it is subsequently fed to the membrane filtration.

The invention will be explained in more detail by means of embodiments with reference to the drawings.

The 1 shows an embodiment of a beverage production plant according to the invention for carrying out the beverage production process according to the invention.

The 2 shows a preferred embodiment of a beverage production plant according to the invention for carrying out the beverage production process according to the invention, in which the microfiltration is carried out before an acid addition to the process solution.

The figures of the drawings show the subject matter of the invention in a highly schematic manner and are not to scale. The individual components of the article according to the invention are shown so that their structure can be well shown.

In the 1 a beverage production plant according to the invention for carrying out the beverage production process according to the invention is shown. In the beverage production plant, a first and a second partial flow 1 . 2 initiated by fresh water. This fresh water is processed in the beverage production plant to beverage water, in particular to brewing water for the production of beer. A storm of this brewing water (drinking water stream or brewing water stream 5 ) is subsequently passed through a brewing water line 6 in a beverage production plant 7 initiated. The brewing water is used to make a beverage 8th processed from the brewing water in a beverage production process. The beverage production plant may be, for example, a beer brewing plant. This is a mash 10 and a laughter 11 and a wort boiling 12 made, which in the figure by dividing the symbolically represented beverage production plant 7 is shown.

The first partial flow 1 gets into a container 15 introduced, in which the saturation of the fresh water of the first partial stream 1 done with lime. In this container 15 it is a settling tank (Kalksättiger), so a sedimentation stage of the beverage production process in which the lime 16 , z. As lime, from a Kalkmilchvorrats- or mixing container 17 is initiated. The lime-saturated first partial flow 18 is via a pipe of a pipe system 20 the beverage production plant withdrawn as dull-free and clear saturated water from the Kalksättiger. The flow directions within the pipes of the pipe system 20 are symbolically represented in the figure by arrowheads on the lines and points at line crossings mean that at these points colliding fluid streams can be mixed together or transferred into each other.

On the line for the derivation of the saturated first partial flow 18 from the container 15 are branches 25 for the addition of HCl and / or H ₂ SO ₄ in the lime-saturated first part stream 18 So in the process solution 27 , intended. This addition is made via a metering pump 28 made in predetermined dosages. Next is on this line of the pipe system 20 a device for metering 29 of CO ₂ z. B. provided from a gas bottle. This addition 29 of CO ₂ takes place after the addition of HCl and / or H ₂ SO ₄ . Also this dosing 29 is done in a given dosage. It can continue via a pH sensor 30 on a pipe, through which the processed brewing water into the beverage production plant 7 is passed, the metered addition of acid are regulated so that a predetermined pH is set in the brewing water.

The process solution 27 is through the pipe system 20 via a metering point 33 , ie a preferably controllable branch, metered the second partial flow 2 the fresh water for forming the Brauwasserstromes 5 mixed in a given mixing ratio. Excess process solution 27 will be via a turnoff 35 in the pipe system 20 in a storage container 37 , z. As a tank made of plastic or stainless steel, for storing the process solution 27 initiated. Of course, the entire process solution can also be used 27 first in the container 37 be initiated and out of the container 37 in the second sub-stream 2 be mixed. The latter variant is in the figure by a dashed line 40 shown. Out of the container 37 can be an addition of the process solution in the drink 8th be made during the beverage manufacturing process. These are pipes with dosing pumps 42 for dosing the process solution 27 between the container 37 and the beverage production plant 7 intended. For example, an addition of the process solution 27 when mashing 10 and / or when refining 11 and / or wort boiling 12 be made. After mixing the brewing water from fresh water and process solution 27 may be another addition 45 from CO ₂ over another Metering device, z. B. an introduction valve to be made.

In the pipe system 20 is a device for membrane filtration (membrane filter) 50 the process solution 27 intended. The membrane filter 50 is before the turnoff 35 for the derivation of process solution 27 in the reservoir 37 and before their supply to the second partial flow 2 provided the fresh water, so that the process solution 27 completely the membrane filter 50 is passed through and filtered before being used for brewing water production. The addition of HCl and / or H ₂ SO ₄ in the process solution takes place in front of the membrane filter 50 ,

The filtration of the process solution 27 allows direct mixing in a mixer 51 of lime 16 , in particular lime milk, z. B. from a reservoir 53 , in the first partial stream 1 Make the fresh water, without causing the settling tank 15 must be passed through, as by the filtration in the membrane filter 50 adequate clarification of the process solution 27 is possible. In the illustrated embodiment of the system according to the invention is the direct interference 51 of lime 52 parallel to passing through the settling tank 15 intended for saturation with lime, so depending on the required amount of process solution 27 the direct interference 51 alternatively or in combination with the use of the settling tank can be used. Of course, only a settling tank 15 be present without the direct interference of milk of lime. The membrane filter 50 then serves to clarify the process solution and / or the beverage water in incomplete settling of the turbidity in the settling tank 15 ,

In 2 a further embodiment of a beverage production plant according to the invention for carrying out the beverage production process according to the invention is shown. Plant components that are made from 1 correspond, are denoted by the same reference numerals. In this embodiment, microfiltration is performed prior to acid addition to the process solution, ie branching 25 for the addition of HCl and / or H ₂ SO ₄ in the process solution after the microfiltration that is done the device for membrane filtration 50 is upstream of the ramifications 25 in the pipe system 20 arranged.

In the illustrated beverage production plant according to the invention lime milk is 70 , z. B. with a concentration of about twenty percent by weight lime in water, in the first part stream 1 introduced fresh water, so that then a lime content of about 0.1 to 5 weight percent lime in the fresh water is included. A settling tank is not available.

The lime milk 70 is in a Kalkmilchmischvorrichtung 71 set, with the lime milk 20 by mixing in lime 16 in fed from a water pipe water 75 in a container, e.g. B. mixed with stirring by means of a stirrer. After introducing the lime milk 70 in the first sub-stream 1 The lime milk fresh water mixture is passed through a static mixer 80 directed. Additionally or alternatively, in front of or behind the static mixer 80 a container may be arranged, is introduced into the lime-fresh water mixture. From this container is then after a certain residence time of this lime-fresh water mixture of the membrane filtration 50 fed.

As Kalkabsättigungsvorrichtung that for the introduction of lime ( 70 ) into the first sub-stream ( 1 ) existing introduction point in the pipe system can be used without a mixer.

The following is the lime milk fresh water mixture, ie the process solution 27 , through the membrane filtration device 50 (Membrane filter) passed. The device for membrane filtration 50 is so in the line system 20 arranged that the filter of the device for membrane filtration 50 can be operated in overflow. Thus, only part of the liquid introduced is discharged as filtrate and another part of the liquid (overflow of the filter surface) is via a return line 85 to the lime milk mixing device 71 returned and again for the application of lime milk 70 used. The latter part of the liquid can also be wholly or partly returned to the device for membrane filtration 50 be initiated. This is a line 90 provided, via adjustable branches 91 , the overflow outlet 93 of the membrane filter 50 and its supply line 94 combines.

The as filtrate from the device for membrane filtration 50 discharged process solution 27 From clear saturated lime water is subsequently to their quantitative buffering in a storage tank 96 initiated. From this storage tank 96 becomes the process solution 27 derived in each desired amount for further beverage production and / or further processed by the addition of at least one acid.

• – Herstellen mindestens einer abgesättigtes Kalkwasser enthaltenden Prozesslösung 27 durch Absättigen, bevorzugt Sättigen, eines ersten Teilstromes 1 des Frischwassers mit Kalk 16, bevorzugt durch Zugabe von Kalkmilch 70 in das Frischwasser des ersten Teilstroms 1,
• – Einmischen von zumindest einem Teilvolumen der Prozesslösung 27 in einen zweiten Teilstrom 2 des Frischwassers in einem vorgegebenen Mischungsverhältnis zur Herstellung eines Getränkewasserstroms 5, und nachfolgende Herstellung eines Getränkes 8 aus dem Getränkewasser des Getränkewasserstroms 5 in einem Getränkeherstellungsprozess.

Be proposed beverage production process with the process steps: processing of fresh water to beverage water, in particular brewing water for the production of beer by

• - Make at least one saturated process solution containing saturated lime water 27 by saturating, preferably saturating, a first partial flow 1 of fresh water with lime 16 . preferably by adding lime milk 70 into the fresh water of the first partial flow 1 .
• - Mixing in at least a partial volume of the process solution 27 into a second partial flow 2 the fresh water in a predetermined mixing ratio for the production of a beverage water stream 5 , and subsequent production of a beverage 8th from the beverage water of the beverage water stream 5 in a beverage manufacturing process.

This will be the process solution 27 and / or the beverage water of the beverage water stream 5 by membrane filtration in a membrane filtration device 50 clarified.

The invention is not limited to the embodiments given above. Rather, a number of variants are conceivable, which make use of the features of the invention even with fundamentally different type of execution.

QUOTES INCLUDE IN THE DESCRIPTION

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Cited patent literature

• DE 102005061492 B1 [0003]

Claims (16)

Beverage production process comprising the steps of preparing fresh water to beverage water, in particular brewing water for the production of beer, by - producing at least one process solution containing saturated lime water ( 27 ) by saturating, preferably saturating, a first substream ( 1 ) of the fresh water with lime ( 16 ), preferably by adding lime milk ( 70 ) into the fresh water of the first partial flow ( 1 ), - mixing at least a partial volume of the process solution ( 27 ) into a second substream ( 2 ) of the fresh water in a predetermined mixing ratio for the production of a beverage water stream ( 5 ), and subsequent production of a beverage ( 8th ) from the beverage water of the beverage water stream ( 5 ) in a beverage manufacturing process, characterized in that the process solution ( 27 ) and / or the beverage water of the beverage water stream ( 5 ) by membrane filtration in a membrane filtration device ( 50 ) is clarified. Beverage production process according to claim 1, characterized in that the membrane filtration is a microfiltration or an ultrafiltration and / or that the device for membrane filtration ( 50 ) is operated in overflow. Beverage production process according to one of claims 1 to 2, characterized in that after the addition of lime milk ( 70 ) into the fresh water of the first partial flow ( 1 ) the first partial flow is a preferably static mixer ( 80 ) to saturate the process solution ( 27 ) and Concentration Reduction of Lime Milk ( 70 ) goes through. Beverage production process according to claim 3, characterized in that the membrane filtration of the process solution ( 27 ) immediately after passing through the mixer ( 80 ) is made. Beverage production process according to one of claims 1 to 4, characterized in that a return of saturated lime water and / or filter retentate from the device for membrane filtration ( 50 ) to a lime milk mixing device ( 71 ) for mixing the milk of lime ( 70 ) is made. Beverage production method according to one of claims 1 to 5, characterized in that the process solutions ( 27 ) before addition to the second substream ( 2 ) each in a storage tank ( 96 . 37 ) be initiated. Beverage production method according to one of claims 1 to 6, characterized in that in at least one of the process solutions ( 27 ) Is at least one acid, in particular HCl and / or H ₂ SO ₄ is added, preferably wherein the acid is added before the membrane filtration and / or that (the first partial flow 1 ) or the second partial flow ( 2 ) of the fresh water, at least one acid, in particular HCl and / or H ₂ SO ₄ , is added, and / or that the beverage water of the beverage water stream ( 5 ) at least one acid, in particular HCl and / or H ₂ SO ₄ , is added. Beverage manufacturing method according to claim 7, characterized in that a storage of at least one of the process solutions ( 27 ) in each case a container ( 37 ), in particular for their addition in the beverage water, is made during the beverage production process. Beverage production method according to one of claims 1 to 8, characterized in that during the treatment of the fresh water to beverage water in one of the partial flows ( 1 . 2 ) and / or in at least one of the process solutions ( 27 ) and / or prior to the production of the beverage into the beverage water stream ( 5 ) CO ₂ added ( 29 . 45 ) becomes. Beverage production process according to claim 7 and 9, characterized in that the CO ₂ after the addition of the acid, in particular of HCl and / or H ₂ SO ₄ , dosed ( 29 . 45 ) becomes. Beverage production method according to one of claims 9 to 10, characterized in that the Zudosierencon acid is controlled so that a predetermined pH value is set in the beverage water. Beverage production process according to one of claims 1 to 11, characterized in that brewing water for the production of beer is produced as beverage water, preferably wherein at least one of the process solutions ( 27 ) in at least one beer preparation step, in particular mashing ( 10 ) and / or Purify ( 11 ) and / or wort boiling ( 12 ) is added to the beverage water. Beverage production method according to one of claims 1 to 12, characterized in that a pH measurement and / or a measurement of the electrical conductivity of the beverage water and / or the clarified saturated lime water and / or at least one of the process solutions ( 27 ) is made. Beverage manufacturing plant for carrying out the beverage production process according to one of claims 1 to 13, with A lime saturator, preferably a lime saturator ( 15 ) and / or a mixer ( 51 . 80 ), to train at least one process solution ( 27 ) by saturating a first substream ( 1 ) of fresh water with lime ( 16 ), preferably by adding lime milk ( 70 ) into the first sub-stream ( 1 ), - a pipeline system ( 20 ) with a line for the derivation of the saturated first substream ( 18 ) from the Kalkabsättigungsvorrichtung, and a metering point ( 33 ) for mixing in at least a partial volume of the process solution ( 27 ) into a second substream ( 2 ) of the fresh water in a predetermined mixing ratio for forming a beverage water stream ( 5 ), and - a beverage production plant ( 7 ) for the subsequent production of a beverage ( 8th ) from the beverage water of the beverage water stream ( 5 ) in a beverage production process, characterized in that on the piping system ( 20 ) at least one device for membrane filtration ( 50 ) of the process solution ( 27 ) and / or the beverage water stream ( 5 ) is provided. Drinks production plant according to claim 14, characterized in that on the line system ( 20 ) at least one branch ( 25 ) for adding at least one acid, in particular HCl and / or H ₂ SO ₄ , preferably in at least one of the process solutions ( 27 ) and / or in the beverage water stream ( 5 ) is provided. Drinks production plant according to one of claims 14 to 15, characterized in that on the line system ( 20 ) and / or the Kalkabsättigungsvorrichtung at least one device for dosing ( 29 . 45 ) of CO _{2 is} provided.

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