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    • 专利摘要:
    The invention relates to a method for bottling well water, comprising the step of providing well water comprising contents of iron and manganese, the method then comprising the step of aerating the well water and then the step of lowering the well water iron and manganese content of the source water of at least 20% by flowing the source water through a sand filter (5, 13, 14) comprising a layer of sand, in which layer the sand has a density of 2.5 to 2, 7 kg / l and has a bulk density of 1 to 2 kg / l, and which sand comprises the following composition: - 94 to 98% by weight of SiO 2; - 0.4 to 1.2% by weight of FeO3; - 1.3 to 2.5 weight percent of Al 2 O 3; - 0.05 to 0.4 weight percent CaO; and - 0.05 to 0.4 weight percent MgO. The invention also relates to a device, a use and a spring water obtained.
    公开号:BE1025220B1
    申请号:E2017/5968
    申请日:2017-12-20
    公开日:2018-12-06
    发明作者:Werner PYCKE
    申请人:Top Bronnen Nv；
    IPC主号:
    专利说明:

    METHOD AND I NRI CHTI NG FOR BOTTLING CREATING SOURCE WATER AND OBTAINED SOURCE WATER
    TECHNICAL DOMAIN N
    The invention relates to a method for bottling spring water according to the preamble of claim 1, to a device for bottling well water according to the preamble of claim 8, and to obtained spring water according to the preamble of claim 14.
    STAND OF THE TECHNIQUE
    JP2003290784A describes an apparatus consisting of an iron and manganese oxidation chamber and a fine sand filtration chamber with a back washing device. The iron and manganese oxidation chamber is provided with an aerator and an oxidation filter bed or biological oxidation filter bed. A fine sand layer filled with fine sand of 0.05 to 0.3 mm in grain size at a thickness of 5 to 150 cm is formed on a filter sand and filter gravel layer in the fine sand filtration chamber with the back washing device of a post stage. The back washing device for backwashing and regenerating the fine sand layer by passing the water through at a filtration rate of 10 to 300 m / day and, in the case of blockage, passing the water through the fine sand segment at 50 up to 900 m / day, is placed in the filter chamber.
    US4534867A describes a system for removing iron and / or other chemically reducing substances from drinking water with a pH between 5 and 9. The system comprises a tank for receiving the water containing a barrel of activated carbon. The untreated water is aerated prior to communication with the activated carbon. All the aerated water is allowed to flow through the bed and the activated carbon provides a catalytic action, substantially all of the oxidation taking place through the bed of activated carbon and the use of chemical oxidizing agents being avoided. The tank provides a reaction site for oxidation in the catalyst, precipitation of the oxidized ions and retention by filtration of the precipitated particles.
    DE1767223A1 describes a method for demineralizing water by aeration and subsequent filtration, wherein the aerated water is filtered through an activated carbon-containing catalytically active manganese compound.
    BE2017 / 5968
    Spring water obtained from natural sources does not always have the desired composition to be bottled directly in containers, such as bottles. Processing of the spring water to obtain a desired composition can best be carried out in a simple manner. Continuity of spring water processing is also of great importance, so as not to obtain unnecessary waiting times in the processing of the spring water.
    The present invention aims at least to find a solution for some of the above problems.
    SUMMARY OF THE UI TVI NDI NG
    In a first aspect, the present invention relates to a method for bottling well water according to claim 1.
    The measure for bottling well water according to a method according to the first aspect of the present invention is a very simple and, because of the specific densities and composition of the sand in the sand filter, a very efficient way of reducing the iron and manganese content of well water. to lower. Moreover, sand is a readily available raw material, which is advantageous for the usability of the process, also in the long term. A spring water with initially too high levels of iron and manganese can thus be optimally prepared for bottling in containers, such as bottles. A bottled spring water obtained in this way is ideally suited to be offered for human consumption.
    Preferred forms of the method are shown in claims 2 to 7.
    In a second aspect, the present invention relates to a device for bottling well water according to claim 8.
    The specific densities and composition of the sand in the sand filter of a bottled water preparation apparatus according to the second aspect of the present invention are ideally suited to the iron and manganese content of a spring water with an initially too high iron and manganese content. reduce the source water. A spring water obtained is ideally suited for
    BE2017 / 5968 human consumption and therefore also to be bottled in containers, such as bottles.
    Preferred forms of the device are shown in claims 9 to
    12.
    In a third aspect, the invention relates to a use of a device according to the second aspect of the present invention in a method according to the first aspect of the present invention, according to claim 13.
    In a fourth aspect, the present invention relates to spring water made bottled by using a method according to the first aspect of the present invention, according to claim 14.
    DESCRIPTION OF THE FL GUREN
    FIG. 1-4 show schematic representations of well water bottling devices, according to embodiments of the present invention.
    DETAILED DESCRIPTION
    The citation of numerical intervals by the end points includes all integers, fractions and / or real numbers between the end points, including these end points.
    The term spring water, as used in this text, is to be understood as water intended for human consumption that is extracted from an underground source.
    The term bottled-ready, as used in this text, is to be understood as referring to a state of spring water in which the composition of the spring water meets certain predetermined conditions and then is filled or bottled in containers such as bottles and as such offered to consumers as drinking water.
    The term density, as used in this text, can be understood as the ratio of the mass of a substance to the volume occupied by that mass.
    BE2017 / 5968
    The term bulk density, as used in this text, can be understood as the mass of a bulk material divided by the volume occupied by that material. The basic property of a said bulk material is that a bulk material comprises cavities in which other materials such as air, water or even other materials are present. As a result, a densely packed bulk material has a higher bulk density than a less densely packed bulk material.
    In a first aspect, the invention relates to a method for bottling well water, comprising the step of providing well water comprising contents of iron and manganese, the method then comprising the step of aerating the well water and then the step of reducing the iron and manganese content of the spring water by at least 20%, more preferably at least 30%, even more preferably at least 40%, even more preferably at least 50%, even more preferably at least 60 %, even more preferably at least 70%, even more preferably at least 80% and most preferably at least 90%, by flowing the well water through a sand filter comprising a layer of sand, in which layer the sand has a density of 2 to 3.2 kg / l, more preferably of 2.2 to 3 kg / l, even more preferably of 2.4 to 2.8 kg / l and even more preferably of 2, 5 to 2.7 kg / l, and in which layer the sand has a bulk density of 1 to 2 kg / l, more preferably from 1.2 to 1.8 kg / l and even more preferably from 1.4 to 1.6 kg / l, and which sand comprises the following composition:
    94 to 98, more preferably 95 to 97 and even more preferably 95.5 to
    96.5 weight percent of S102;
    - 0.4 to 1.2, more preferably 0.6 to 1.0 and even more preferably 0.7 to 0.9% by weight of FeCl 2;
    1.3 to 2.5, more preferably 1.5 to 2.3, even more preferably 1.7 to 2.1 and even more preferably 1.8 to 2.0 weight percent Al 2 O 3;
    - 0.05 to 0.4 and more preferably 0.1 to 0.3 weight percent CaO; and
    - 0.05 to 0.4 and more preferably 0.1 to 0.3 weight percent MgO.
    Flowing the spring water through a sand filter or sand filtration is a very robust method to remove suspended solids from the water. Sand filtration is usually considered a simple mechanical process, in which the processes of adsorption (physical and chemical), sedimentation, interception and diffusion play a role.
    BE2017 / 5968
    The step of aerating the spring water converts iron and manganese present in the spring water into iron oxide and manganese oxide, respectively. This iron oxide and manganese oxide can then be optimally retained by the sand filter during the step of flowing the spring water through the sand filter, whereby the iron and manganese content of the spring water can be reduced according to the above percentages.
    The measure for bottling well water according to a method according to the first aspect of the present invention is a very simple and, because of the specific densities and composition of the sand in the sand filter, a very efficient way of reducing the iron and manganese content of well water. to lower. Moreover, sand is a readily available raw material, which is advantageous for the usability of the process, also in the long term. A spring water with initially too high levels of iron and manganese can thus be optimally prepared for bottling in containers, such as bottles. A bottled spring water obtained in this way is ideally suited to be offered for human consumption. The measure of using said specific sand filter cannot be called obvious for a person skilled in the art. Such a person skilled in the art would rather opt for more complicated and more expensive methods of water purification, instead of making efforts to find a sand filter with optimum properties for reducing the iron and manganese content in spring water.
    According to a preferred embodiment, the spring water is provided by pumping up the spring water from an underground source. Said sand preferably has a white, off-white to yellow color. Preferably, said sand is poor in or free from clay, dust and organic matter other than sand. According to a preferred embodiment, the sand filter comprises, in addition to said layer of sand, an additional layer with identical properties which is placed against the first-mentioned layer. This ensures that in the event of a defect in one of the layers, the device can still properly retain or prevent said iron oxide and manganese oxide. According to a preferred embodiment, the sand filter subsequently comprises on one side of said layer of sand or subsequently on either side of said layer of sand another layer comprising large particles which ensures that the sand of said layer of sand cannot escape when the spring water passes through it flows.
    BE2017 / 5968
    According to a preferred embodiment, after the step of reducing the iron and manganese content, the spring water is filled or bottled in containers, such as bottles. Said containers, such as bottles, can be made of any suitable material as known in the art, of which polyethylene terephthalate and glass are non-limiting examples. Preferably, said containers are reusable or recyclable.
    According to a preferred embodiment, the spring water provided comprises an iron content of at least 0.1 mg / l, more preferably of at least 0.15 mg / l and even more preferably of at least 0.2 mg / l and a manganese content of at least 0 , 01 mg / l, more preferably of at least 0.015 mg / l and even more preferably of at least 0.02 mg / l, which iron content is lowered to a value between 0.0005 and 0.08 mg / l and which manganese content is reduced to a value between 0.0002 and 0.008 mg / l by flowing the spring water through the sand filter. Said final values of iron and manganese levels are very suitable for spring water for human consumption.
    According to a preferred embodiment, the step of flowing the spring water through a sand filter is still carried out in the event of a defect or during regeneration of the sand filter, because in the event of a defect or during regeneration of the sand filter, the spring water is diverted so that it can flow through another sand filter with the same specifications. This measure is optimal to ensure continuity of bottling well water according to the first aspect of the present invention.
    According to a preferred embodiment, the spring water flows through the sand filter at a flow rate of 10 to 20 m 3 per hour, more preferably from 12 to 18 m 3 per hour and even more preferably from 14 to 16 m 3 per hour. Such flow water flow rate is high enough to allow a smooth passage of spring water and therefore a smooth reduction of the iron and manganese content of the spring water while such flow rate is not too high to prevent sand from being flushed out when flowing of the spring water through the sand filter.
    According to a preferred embodiment, after the step of flowing the spring water through a sand filter, the spring water then flows through an activated carbon filter comprising a layer of activated carbon. Such flowing of the spring water through an activated carbon filter improves the taste and odor of the spring water, and removes any haze or cloudiness that may be present that
    BE2017 / 5968 could have been caused by the flow of the spring water through the sand filter.
    Carbon or carbon is a substance that has been used for a long time to absorb impurities and is perhaps the most powerful absorber known to man. Approximately 0.45 kg of activated carbon has an area of approximately 50 hectares and can absorb literally thousands of different chemicals. Activated carbon can be in the form of granular activated carbon or powdered block of carbon. The two most important factors that influence the efficiency of active carbon filtration are the amount of carbon and the amount of time a contaminant spends with it. The more carbon, the better. It also holds that the lower the flow rate of the water, the more time the contaminants will come into contact with the carbon and the more absorption will take place. Preferably the activated carbon is microporous and inert, the activated carbon comprises a grain size of 0.2 to 2.8 mm, more preferably of 0.4 to 2.6 mm and even more preferably of 0.5 to 2, 5 mm, and the activated carbon comprises a large internal surface area, up to 1500 m 2 per gram. Such a surface area is ideally suited to absorb organic molecules from the source water, the organic molecules adhering to the surface. Preferably in the activated carbon filter the activated carbon is provided according to a minimum bed depth of 600 to 900 mm, more preferably of 700 to 800 mm and even more preferably of 730 to 770 mm.
    In a preferred embodiment, the spring water flows through the activated carbon filter comprising a layer of activated carbon with a flow rate of 10 to 20 m 3 per hour, more preferably from 12 to 18 m 3 per hour and even more preferably from 14 to 16 m 3 per hour. Such a flow rate of flow of the spring water is high enough to ensure a smooth passage of spring water through the activated carbon filter and at the same time not too high so that a good absorption of contaminants by the activated carbon is guaranteed. The particle size also influences the removal rates of contaminants through the activated carbon filter. Carbon types that can be used to remove contaminants from spring water are bituminous, woody and coconut carbons.
    According to a preferred embodiment, after the step of flowing the spring water through a sand filter, or when performed after the step of flowing the spring water through an activated carbon filter comprising a layer of activated carbon, the spring water then flows through a filter candle. If during the
    BE2017 / 5968 flows of spring water through the sand filter, if sand were to be washed out, this sand is collected by the filter candle. This is important to guarantee the quality of the spring water.
    A filter candle or candle filter is used for microfiltration of liquids. A medium that ensures the actual filtration is in this case designed in the form of an elongated disposable element. One or more of these elements or candles are placed in a barrel. The candle is a hollow tube and is preferably filtered from the outside to the inside, so that the solid particles to be collected are collected on the outside. As solid parts are captured, the pressure drop across the element increases. With a certain pressure drop, the filtration is preferably stopped and the elements or candles are preferably replaced with new ones.
    A micronage corresponds to each candle, a particle size above which particles are retained or retained by the media. A distinction can be made between nominal filtration and absolute filtration. With nominal filtration, it is possible that a percentage of particles with the size of a specified micronage will pass through the candles. However, with absolute filtration, which is preferred according to a preferred embodiment of the present invention, it is guaranteed that all particles of the specified micronage and larger are retained. That is, the percentage that is retained in absolute filtration is almost 100%. Candles for nominal filtration are often made of a fibrous structure, such as resin-bonded fibers, wound rope of cotton or polypropylene thread, or meltblown fibers. Candles for absolute filtration are usually designed as membrane filters and work according to the principle of surface filtration. In order to increase the surface area here, a filter medium is pleated, whereby fine pleats are preferably applied.
    In a preferred embodiment, the spring water flows through the filter candle at a flow rate of 40 to 50 m 3 per hour, more preferably from 42 to 48 m 3 per hour and even more preferably from 44 to 46 m 3 per hour. Such a flow rate of flow of the spring water is high enough to ensure a smooth passage of spring water through the filter candle and at the same time not too high so that a good retention of said sand through the filter candle is guaranteed.
    In a preferred embodiment, the filter candle comprises three series-arranged segments and the spring water flows through the filter candle during the flow through the series-arranged segments, which series
    BE2017 / 5968 segments successively an elongated pre-filter comprising polypropylene, an elongated intermediate filter comprising glass fiber with an effective filtration area of 1400 to 1800 mm 2 and more preferably of 1500 to 1700 mm 2 per mm length of the intermediate filter, and an elongated sterile filter comprising polyethersulfone with an effective filtration surface of 2500 to 2900 mm 2 and more preferably of 2600 to 2800 mm 2 per mm length of the sterile filter.
    Pre-filter, intermediate filter and / or sterile filter are preferably pleated to increase the surface area for filtration, whereby fine pleats are preferably provided. The pre-filter and / or intermediate filter for removing impurities, including sand, preferably has a removal rating of 0.1 to 7 μm and preferably of 0.4 to 5.5 μm. The term removal rating is to be understood as the statistical probability of a filter to retain particles of a certain size under controlled conditions. Preferably, the sterile filter has a microbial rating of 0.01 to 1.5 μm and more preferably of 0.03 to 1.25 μm. The term microbial rating is to be understood as the statistical probability of a filter to retain micro-organisms of a certain size under controlled conditions. The pre-filter prevents clogging of the intermediate filter. The intermediate filter is suitable for retaining all or most of said sand. If said sand should escape through the intermediate filter, this sand will be retained by the sterile filter.
    In a preferred embodiment, after the step of flowing the spring water through a filter candle, the method comprises the step of flowing the spring water through a UV filter. This step is intended to kill any remaining microorganisms in the spring water. Any suitable UV filters as known in the art can be used for this.
    In a second aspect the invention relates to a device for bottling well water, comprising a pump for supplying well water, the device comprising after the pump a aerator for aerating the well water and after the aerator a sand filter for filtering of the well water, wherein the sand filter comprises a layer of sand, in which layer the sand has a density of 2 to 3.2 kg / l, more preferably of 2.2 to 3 kg / l, even more preferably of 2 4 to 2.8 kg / l and even more preferably from 2.5 to 2.7 kg / l, and in which layer the sand has a bulk density of 1 to 2 kg / l, more preferably from 1, 2 to 1.8 kg / l and even more preferably from 1.4 to 1.6 kg / l, and which sand comprises the following composition:
    BE2017 / 5968
    94 to 98, more preferably 95 to 97 and even more preferably 95.5 to 96.5 weight percent of S102;
    0.4 to 1.2, more preferably 0.6 to 1.0 and even more preferably 0.7 to
    0.9% by weight of FeCh;
    1.3 to 2.5, more preferably 1.5 to 2.3, even more preferably 1.7 to 2.1 and even more preferably 1.8 to 2.0 weight percent Al2 O3;
    - 0.05 to 0.4 and more preferably 0.1 to 0.3 weight percent CaO; and
    - 0.05 to 0.4 and more preferably 0.1 to 0.3 weight percent MgO.
    A sand filter is ideal for removing suspended solids from the spring water. Sand filtration is usually considered a simple mechanical process, in which the processes of adsorption (physical and chemical), sedimentation, interception and diffusion play a role.
    The aerator is adapted to aerate the spring water so that iron and manganese present in the spring water are converted into iron oxide and manganese oxide respectively. This iron oxide and manganese oxide can then be optimally retained by the sand filter when the pumped spring water is first aerated by said aerator and then flows through said sand filter. In this way the iron and manganese content of the spring water can be efficiently reduced.
    The specific densities and composition of the sand in the sand filter of a bottled water preparation apparatus according to the second aspect of the present invention are ideally suited to the iron and manganese content of a spring water with an initially too high iron and manganese content. reduce the source water. A spring water obtained is ideally suited for human consumption and therefore also to be bottled in containers, such as bottles. The selection of said specific sand filter is not obvious for a person skilled in the art. After all, such a person skilled in the art would rather opt for more complicated and more expensive arrangements for water purification, instead of making efforts to find a sand filter with optimum properties for reducing the iron and manganese content in spring water.
    According to a preferred embodiment, said water is pumped up with spring water from an underground source. Said sand preferably has a white, off-white to yellow color. Preferably said sand is poor in or free
    BE2017 / 5968 of clay, dust and organic matter other than sand. According to a preferred embodiment, the sand filter comprises, in addition to said layer of sand, an additional layer with identical properties which is placed against the first-mentioned layer. This ensures that in the event of a defect in one of the layers, the device can still properly retain said iron oxide and manganese oxide. According to a preferred embodiment, the sand filter subsequently comprises on one side of said layer of sand or subsequently on either side of said layer of sand another layer comprising large particles which ensures that the sand of said layer of sand cannot escape when the spring water passes through it flows.
    In a preferred embodiment, one or more additional sand filters, and preferably two additional sand filters, are arranged in parallel with said sand filter. The device according to the second aspect of the present invention is preferably arranged such that spring water can flow via pipes to any of said sand filters arranged in parallel, and that on the basis of the operation of the sand filters a specific sand filter is selected which is in operation is not regenerated or damaged at that time. The control of the spring water by means of said pipes to any of said sand filters arranged in parallel can be made possible, for example, by providing a multi-way valve on said pipes. The measure of sand filters arranged in parallel is optimal to ensure continuity of bottling of spring water using a device according to the second aspect of the present invention.
    In a preferred embodiment, after the sand filter, an activated carbon filter is arranged comprising a layer of activated carbon. Flowing well water through an activated carbon filter improves the taste and odor of the well water, and removes any haze or cloudiness that may be caused by an earlier flow of well water through the sand filter.
    Carbon or carbon is a substance that has been used for a long time to absorb impurities and is perhaps the most powerful absorbent known to man. Approximately 0.45 kg of activated carbon has an area of approximately 50 hectares and can absorb literally thousands of different chemicals. Activated carbon can be in the form of granular activated carbon or powdered block of carbon. The two most important factors that influence the efficiency of active carbon filtration are the amount of carbon and the amount of time a contaminant spends with it. The more carbon, the better. It also holds that the lower the flow rate of the water, the more time the contaminants will come into contact with the
    BE2017 / 5968 carbon and the more absorption will take place. Preferably the activated carbon is microporous and inert, the activated carbon comprises a grain size of 0.2 to 2.8 mm, more preferably of 0.4 to 2.6 mm and even more preferably of 0.5 to 2, 5 mm, and the activated carbon comprises a large internal surface area, up to 1500 m 2 per gram. Such a surface area is ideally suited to absorb organic molecules from the source water, the organic molecules adhering to the surface. Preferably in the activated carbon filter the activated carbon is provided according to a minimum bed depth of 600 to 900 mm, more preferably of 700 to 800 mm and even more preferably of 730 to 770 mm. The particle size also influences the removal rates of contaminants through the activated carbon filter. Carbon types that can be used to remove contaminants from spring water are bituminous, woody and coconut carbons.
    In a preferred embodiment, after the sand filter, and when present after the active carbon filter, a filter candle is arranged. If, during streams of spring water through the sand filter of the installation, sand were to leach, this sand is collected by the filter candle. This is important to guarantee the quality of spring water.
    A filter candle or candle filter is used for microfiltration of liquids. A medium that ensures the actual filtration is in this case designed in the form of an elongated disposable element. One or more of these elements or candles are placed in a barrel. The candle is a hollow tube and is preferably filtered from the outside to the inside, so that the solid particles to be collected are collected on the outside. As solid parts are captured, the pressure drop across the element increases. With a certain pressure drop, the filtration is preferably stopped and the elements or candles are preferably replaced with new ones.
    A micronage corresponds to each candle, a particle size above which particles are retained by the media. A distinction can be made between nominal filtration and absolute filtration. With nominal filtration, it is possible that a percentage of particles with the size of a specified micronage will pass through the candles. However, with absolute filtration, which is preferred according to a preferred embodiment of the present invention, it is guaranteed that all particles of the specified micronage and larger are retained. That is, the percentage that is retained in absolute filtration is almost 100%. Candles for nominal filtration are often made of a fibrous structure, such as resin-bound fibers, wound cotton rope or
    BE2017 / 5968 polypropylene thread, or meltblown fibers. Candles for absolute filtration are usually designed as membrane filters and work according to the principle of surface filtration. In order to increase the surface area here, a filter medium is pleated, whereby fine pleats are preferably applied.
    In a preferred embodiment said filter candle comprises three segments connected in series, which segments arranged in series successively an elongated prefilter comprising polypropylene, an elongated intermediate filter comprising glass fiber with an effective filtration surface of 1400 to 1800 mm 2 and more preferably of 1500 up to 1700 mm 2 per mm length of the intermediate filter, and an elongated sterile filter comprising polyether sulfone with an effective filtration area of 2500 to 2900 mm 2 and more preferably 2600 to 2800 mm 2 per mm length of the sterile filter.
    Pre-filter, intermediate filter and / or sterile filter are preferably pleated to increase the surface area for filtration, whereby fine pleats are preferably provided. The pre-filter and / or intermediate filter for removing impurities, including sand, preferably has a removal rating of 0.1 to 7 μm and preferably of 0.4 to 5.5 μm. The term removal rating is to be understood as the statistical probability of a filter to retain particles of a certain size under controlled conditions. Preferably, the sterile filter has a microbial rating of 0.01 to 1.5 μm and more preferably of 0.03 to 1.25 μm. The term microbial rating is to be understood as the statistical probability of a filter to retain micro-organisms of a certain size under controlled conditions. The pre-filter prevents clogging of the intermediate filter. The intermediate filter is suitable for retaining all or most of said sand. If said sand should escape through the intermediate filter, this sand will be retained by the sterile filter. The device according to the second aspect of the present invention is preferably adapted to flow spring water successively through said serially arranged pre-filter, intermediate filter and sterile filter.
    In a preferred embodiment, the device according to the second aspect of the present invention further comprises a UV filter after the filter candle. The presence of a UV filter is intended to be able to kill off any remaining microorganisms in the source water, by allowing the source water to flow through the UV filter. Any suitable UV filters as known in the art can be used for this.
    BE2017 / 5968
    In a third aspect, the invention relates to a use of a device according to the second aspect of the present invention in a method according to the first aspect of the present invention. Accordingly, all technical achievements and positive features of a device according to the second aspect of the present invention are combined with those of a method according to the first aspect of the present invention.
    In a fourth aspect, the present invention relates to spring water made bottled by applying a method according to the first aspect of the present invention, and preferably using a device according to the second aspect of the present invention, wherein the bottled prepared spring water has an iron content with a value between 0.0005 and 0.08 mg / l and a manganese content with a value between 0.0002 and 0.008 mg / l. Said final values of iron and manganese contents are very suitable for spring water for human consumption and therefore very suitable for bottling as such. Preferably, the bottled spring water also comprises a pH value between pH 6.8 and pH 7.5, 150 to 270 mg / l bicarbonates, 0.1 to 0.5 mg / l fluorine, 0.1 to 2 mg / l l nitrates, 0.001 to 0.05 mg / l nitrites and 0.001 to 0.1 mg / l ammonium. Preferably, the bottled spring water has a total hardness between 35 ° F and 43 ° F, an alkalinity between 15 and 20 mEq / l and a conductivity between 600 pS / cm and 1000 pS / cm.
    In the following, the invention is described on the basis of non-limiting examples or figures illustrating the invention, which are not intended or may be interpreted to limit the scope of the invention.
    EXAMPLES
    EXAMPLE 1
    Example 1 relates to a method and a device for bottling well water, according to embodiments of the present invention.
    To better illustrate Example 1, reference is made to Figs. 1. FIG. 1 shows a schematic representation of a device for bottling well water, according to embodiments of the present invention.
    BE2017 / 5968
    By means of a pump 2, spring water from an underground source is pumped up and received in a reservoir 1. From this reservoir 1, the spring water flows at a flow rate of 44 to 46 m 3 per hour via a water pipe 3 to an aerator 4, where the spring water is aerated is going to be. By aerating the spring water, iron and manganese present in the spring water are converted into iron oxide and manganese oxide respectively. The spring water then flows according to another water pipe 6 to and then through a sand filter 5. By flowing through the sand filter 5, iron oxide and manganese oxide are retained, whereby the iron and manganese content of the spring water is reduced. Because of a specific composition of the sand filter 5, the sand filter 5 is optimally suitable for this purpose. The sand filter comprises a layer of sand, in which layer the sand has a density of
    2.5 to 2.7 kg / l and has a bulk density of from 1.4 to 1.6 kg / l, and which sand is 95.5 to 96.5% by weight of S1O2, 0.7 to 0.9% by weight of FeO3, 1.8 to 2.0 weight percent Al 2 O 3, 0.1 to 0.3 weight percent CaO, and 0.1 to 0.3 weight percent MgO.
    According to Example 1, the spring water flows through the sand filter at a flow rate of 14 to 16 m 3 per hour. Such flow water flow rate is high enough to allow a smooth passage of spring water and therefore a smooth reduction of the iron and manganese content of the spring water while such flow rate is not too high to prevent sand from being flushed out when flowing of the spring water through the sand filter.
    Finally, the spring water is sent via a subsequent water pipe 7 to another pump 8, whereafter the spring water is further distributed via another water pipe 9 for human consumption.
    EXAMPLE 2
    Example 2 relates to a method and a device for bottling well water, according to embodiments of the present invention.
    To better illustrate Example 2, reference is made to Figs. 2. FIG. 2 shows a schematic representation of a device for bottling well water, according to embodiments of the present invention.
    BE2017 / 5968
    The method and device according to Example 2 are identical to those described above
    Example 1, with the exception of two additional sand filters 13, 14 which are arranged in parallel with said sand filter 5, and the associated additional possibilities.
    At the step of flowing the spring water through a sand filter 5, 13 and 14, a person responsible for the device now has the choice to have the spring water flow through one of the three sand filters 5, 13, 14 according to the flow rates that are mentioned in Example 1. To this end, the device comprises a multi-way valve 10 which receives aeration water from the aerator 4 via a water pipe 6, after which the source water can flow via a pipe 11, 12, 17 to and through one of the three sand filters 5,
    13, 14. On the basis of the operation of the sand filters 5, 13, 14 a specific sand filter 5, 13, 14 can be selected which is in operation and is not regenerated or is not damaged. The sand filters 5, 13, 14 arranged in parallel are optimally suitable for ensuring the continuity of the bottling of spring water using a device according to the second aspect of the present invention.
    Finally, the spring water is sent via a subsequent water pipe 7, 15, 16 to another pump 8, after which the spring water is further distributed via another water pipe 9 for human consumption.
    EXAMPLE 3
    Example 3 relates to a method and a device for bottling well water, according to embodiments of the present invention.
    To better illustrate Example 3, reference is made to Figs. 3. FIG. 3 shows a schematic representation of a device for bottling well water, according to embodiments of the present invention.
    The method and device according to Example 3 are identical to those described for Example 2, with the exception of three activated carbon filters 18, 19, 20 which are arranged in parallel after the three sand filters 5, 13, 14, and the associated additional features and steps.
    After the step of flowing spring water through one of the three sand filters 5, 13,
    14, as described above for Example 2, it flows in Example 3
    BE2017 / 5968 spring water according to a pipe 7, 21, 22 further to and through an activated carbon filter 18, 19, 20. Through the three activated carbon filters 18, 19, 20 in parallel to each other and moreover directed to the three arranged in parallel placing sand filters 5, 13, 14, the spring water that has flowed through one of the sand filters 5, 13, 14 can always flow easily and without too many detours to an activated carbon filter 18, 19, 20 comprising a layer of activated carbon. Such flowing of the well water through an activated carbon filter 18, 19, 20 improves the taste and odor of the well water, and removes from it any haze or turbidity that may be caused by the well water flowing through the sand filter 5, 13, 14. Said activated carbon in the example according to Example 3 is microporous and inert, and comprises a grain size of 0.5 to 2.5 mm, and comprises a large internal surface area, of 500 to 1500 m 2 per gram. Such a surface area is ideally suited to absorb organic molecules from the source water, the organic molecules adhering to the surface. In the activated carbon filter 18, 19, 20, the activated carbon is provided according to a minimum bed depth of 730 to 770 mm.
    According to Example 3, the spring water flows through the activated carbon filter 18, 19, 20 comprising a layer of activated carbon with a flow rate of 14 to 16 m 3 per hour. Such a flow rate of flow of the spring water is high enough to ensure a smooth passage of spring water through the activated carbon filter 18, 19, 20 and at the same time not too high, so that a good absorption of contaminants by the activated carbon is guaranteed.
    Finally, the spring water is sent via a subsequent water pipe 23, 24, 25 to another pump 8, after which the spring water is further distributed via another water pipe 9 for human consumption.
    EXAMPLE 4
    Example 4 relates to a method and a device for bottling well water, according to embodiments of the present invention.
    To better illustrate Example 4, reference is made to Figs. 4. FIG. 4 shows a schematic representation of a device for bottling well water, according to embodiments of the present invention.
    The method and apparatus of Example 4 are identical to those described for Example 3, with the exception of a filter candle 26 comprising three in series
    BE2017 / 5968 segments 27, 28, 29 arranged after the three activated carbon filters 18, 19, 20, and the associated additional features and steps.
    After an activated carbon filter 18, 19, 20, the spring water flows through a water pipe 23, 24, 25 through the filter candle 26. Flow of spring water within the filter candle 26 and from the filter candle 26 takes place by means of an additional water pipe 30. If during the If the spring water flows through the sand filter 5, 13, 14 and if sand is leached, this sand is collected by the filter candle 26. This is important to guarantee the quality of the spring water. The serially arranged segments 27, 28, 29 concern an elongated pre-filter 27 comprising polypropylene, an elongated intermediate filter 28 comprising glass fiber with an effective filtration surface of 1500 to 1700 mm 2 per mm length of the intermediate filter 28, and an elongated sterile filter 29 comprising polyethersulfone with an effective filtration area of 2600 to 2800 mm 2 per mm length of the sterile filter 29.
    According to Example 4, the spring water flows through the filter candle 26 at a flow rate of 44 to 46 m 3 per hour. Such a flow rate of flow of the spring water is high enough to ensure a smooth passage of spring water through the filter candle 26 and at the same time not too high so that a good retention of said sand through the filter candle 26 is guaranteed.
    EXAMPLE 5
    Example 5 concerns the comparison of the composition and properties of a spring water that has been pumped up as described above in Example 1 and has not been further treated, and the composition and properties of that spring water after bottling it according to one of the methods and one of the devices as described in any of Examples 1 to 4. The former spring water is referred to as untreated spring water, and the latter spring water is referred to as bottled spring water. Data from the untreated spring water and the bottled spring water are shown in Table 1 below.
    Table 1 Composition, pH, total hardness, alkalinity and conductivity of spring water that has been pumped up as described above in Example 1 that has not been further treated, hereinafter referred to as "untreated spring water", and of that spring water after bottling it according to one of the methods and
    BE2017 / 5968 one of the devices as described in one of Examples 1 to 4, here called "bottled spring water"
    untreated spring water bottled spring water pH 7.15 7.41 bicarbonates (mg / l) 408.7 213.5 fluorine (mg / l) 0.444 0.308 nitrates (mg / l) 0.406 0.295 nitrites (mg / l) 0.008 0.008 ammonium (mg / l) 0.007 0.012 iron (mg / l) 0.213 0.007 manganese (mg / l) 0.032 0.002 total hardness (° F) 44.7 39 alkalinity (mEq / l) 33.4 17.5 conductivity (pS / cm) 824 813
    By making the spring water ready for bottling, the pH has risen slightly and the total hardness, alkalinity and conductivity have fallen slightly. The content of bicarbonates, fluorine and nitrates has decreased as a result. The content of nitrites has remained constant and the content of ammonium has risen slightly.
    When the spring water is made ready for bottling, the iron and manganese content of the spring water is reduced by more than 90% by flowing the spring water 10 through a sand filter 5, 13, 14.
    This indicates that the specific densities and composition of the sand in the sand filter 5, 13, 14 as mentioned above in Example 1 are ideally suited to reduce the iron and manganese content of a spring water with an initially too high iron and manganese content , and thus make the spring water bottled. The resulting bottled spring water is ideal for human consumption and therefore also for bottling in containers, such as bottles.
    权利要求:
    Claims (5)
    [1]
    - 1.3 to 2.5% by weight of Al2 O3;
    - 0.05 to 0.4 weight percent CaO; and
    - 0.05 to 0.4 weight percent MgO.
    Device according to claim 8, wherein one or more additional sand filters (13, 14) are arranged in parallel with said sand filter (5).
    Device as claimed in claim 8 or 9, wherein after the sand filter (5, 13, 14) an active carbon filter (18, 19, 20) comprising a layer of activated carbon is arranged.
    Device according to any of claims 8 to 10, wherein after the sand filter (5, 13, 14), and when present after the activated carbon filter (18, 19, 20), a filter candle (26) is arranged.
    Device according to claim 11, wherein said filter candle (26) comprises three series-connected segments (27, 28, 29), which series-arranged segments (27, 28, 29) successively comprise an elongated pre-filter (27) comprising polypropylene , an elongated intermediate filter (28) comprising glass fiber with an effective filtration area of 1400 to 1800 mm 2 per mm length of the intermediate filter (28), and an elongated sterile filter
    BE2017 / 5968 (29) comprising polyethersulfone with an effective filtration area of 2500 to 2900 mm 2 per mm length of the sterile filter (29).
    Use of a device according to one of claims 8 to 12 in a method according to one of claims 1 to 7.
    - 1.3 to 2.5% by weight of Al2 O3;
    - 0.05 to 0.4 weight percent CaO; and
    - 0.05 to 0.4 weight percent MgO.
    Method for bottling well water, comprising the step of providing well water comprising contents of iron and manganese, characterized in that the method then comprises the step of aerating the well water and then the step of lowering at least 20% of the iron manganese content of the well water by flowing the well water through a sand filter (5, 13, 14) comprising a layer of sand, in which layer the sand has a density of 2.5 to 2, 7 kg / l, and in which layer the sand has a bulk density of 1 to 2 kg / l, and which sand comprises the following composition:
    - 94 to 98% by weight of S102;
    - 0.4 to 1.2 weight percent of FeCh;
    [2]
    Method according to claim 1, wherein the spring water provided comprises an iron content of at least 0.1 mg / l and a manganese content of at least 0.01 mg / l, which iron content is reduced to a value between 0.0005 and 0.08 mg / l and which manganese content is reduced to a value between 0.0002 and 0.008 mg / l by flowing the spring water through the sand filter (5, 13, 14).
    [3]
    Method according to claim 1 or 2, wherein the step of flowing the spring water through a sand filter (5, 13, 14) is still carried out in the event of a defect or regeneration of the sand filter (5, 13, 14) in that in the event of a defect or regeneration of the sand filter bypassing the well water so that it can flow through another sand filter (5, 13, 14) with the same specifications.
    [4]
    A method according to any one of claims 1 to 3, wherein the spring water flows through the sand filter (5, 13, 14) at a flow rate of 10 to 20 m 3 per hour.
    The method of any one of claims 1 to 4, wherein after the step of flowing the well water through a sand filter (5, 13, 14), the well water then passes through an activated carbon filter (18, 19, 20) comprising a layer of activated carbon.
    The method according to any of claims 1 to 5, wherein after the step of flowing the spring water through a sand filter (5, 13, 14), or when performed after the step of flowing the spring water through an active carbon filter ( 18, 19, 20) comprising a layer of activated carbon, the spring water then flows through a filter candle (26).
    BE2017 / 5968
    The method of claim 6, wherein the filter candle (26) comprises three serially arranged segments (27, 28, 29) and the spring water flows through the filter candle (26) sequentially through the serially arranged segments (27, 28, 29), which series-arranged segments (27, 28, 29) successively comprise an elongated prefilter (27) comprising polypropylene, an elongated intermediate filter (28) comprising glass fiber with an effective filtration surface of 1400 to 1800 mm 2 per mm length of the intermediate filter (28), and an elongated sterile filter (29) comprising polyether sulfone with an effective filtration area of 2500 to 2900 mm 2 per mm length of the sterile filter (29).
    Device for bottling well water, comprising a pump (2) for supplying well water, characterized in that after the pump (2) the device comprises an aerator (4) for aerating the well water and after the aerator (4) comprises a sand filter (5, 13, 14) for filtering the well water, the sand filter (5, 13, 14) comprising a layer of sand, in which layer the sand has a density of 2 to 3, 2 kg / l, and in which layer the sand has a bulk density of 1 to 2 kg / l, and which sand comprises the following composition:
    - 94 to 98% by weight of S102;
    - 0.4 to 1.2 weight percent of FeCh;
    [5]
    14. Well water made bottled by applying a method according to any one of claims 1 to 7, wherein the bottled well water comprises an iron content with a value between 0.0005 and 0.08 mg / l and a manganese content with a value between 0.0002 and 0.008 mg / l.
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    同族专利:
    公开号 | 公开日
    BE1025220B9|2018-12-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1767223A1|1968-04-13|1971-08-12|Adsorptionstech Lab|Process for the demanganization of water|
    US4534867A|1983-08-24|1985-08-13|Culligan International Company|System for removing iron and/or other chemically reducing substances from potable water|
    JP2003290784A|2002-04-02|2003-10-14|Kaihatsu Kogyo:Kk|Iron and manganese remover and method for the same|
    法律状态:
    2019-01-16| FG| Patent granted|Effective date: 20181206 |
    优先权:
    申请号 | 申请日 | 专利标题
    BE20175968A|BE1025220B9|2017-12-20|2017-12-20|Method and device for bottling spring water and obtained spring water|BE20175968A| BE1025220B9|2017-12-20|2017-12-20|Method and device for bottling spring water and obtained spring water|
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