WO2003085198A2 - Schnellwirkendes mittel für die zubereitung von kalt-und heissgetränken aus trinkwasser - Google Patents
Schnellwirkendes mittel für die zubereitung von kalt-und heissgetränken aus trinkwasser Download PDFInfo
- Publication number
- WO2003085198A2 WO2003085198A2 PCT/EP2003/003632 EP0303632W WO03085198A2 WO 2003085198 A2 WO2003085198 A2 WO 2003085198A2 EP 0303632 W EP0303632 W EP 0303632W WO 03085198 A2 WO03085198 A2 WO 03085198A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- mass
- composition according
- fibers
- cellulose fibers
- Prior art date
Links
Classifications
-
- 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
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/04—Processes using organic exchangers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
-
- 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
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/16—Organic material
- B01J39/18—Macromolecular compounds
- B01J39/22—Cellulose or wood; Derivatives thereof
-
- 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
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Definitions
- the invention relates to a fast-acting agent for the preparation of cold and hot drinks from drinking water, in particular coffee or tea.
- drinking water For the preparation of cold and hot drinks, such as As coffee or tea, drinking water also affects the taste of the drink.
- the quality of the drinking water varies widely, particularly with regard to the hardness, which is influenced by calcium and magnesium compounds.
- a slightly iridescent film forms on the surface and on the wall of the tea or drinking vessel there is an unsightly deposit, which is caused by the drinking water used.
- filter devices with water filters in the form of filter cartridges or filter cartridges.
- the usual filters generally contain a mixture of weakly acidic cation exchangers in the H form and an activated carbon portion.
- the filters have only a limited absorption capacity and their performance is weakened after only a short runtime.
- the filter cartridges must be inserted into the filter device, changed monthly and kept in constant contact with water.
- the actual water filter should be washed regularly and protected from the sun.
- the filtered water should be used within two days. Silver is used as a germicide in dissociable form.
- the filter cartridges must be pre-soaked in water for 20 minutes before use. Due to the initially too high effect, the first two fillings have to be filtered
- the invention has for its object to provide a fast-acting agent for the preparation of cold and hot drinks from drinking water, which is easy to use, has a uniformly constant effect, eliminates the risk of microbes and after a relatively short treatment time of the drinking water to a noticeable improves the taste of the beverage.
- phosphate ester groups have the advantage of binding calcium and heavy metal traces very firmly in contrast to carboxymethyl sulfate ester or other cation-exchanging groups. An H + ion is released when the ester group is present as a neutral alkali salt, thus further reducing the carbonate hardness. Any carbamide groups present do not influence these processes.
- the chemical conversion takes place e.g. by phosphorylation of the cellulose fibers with phosphoric acid or ammonium phosphate up to a phosphorus content of 3 to 8 mass%.
- a combined phosphorylation and carbamidation has also proven to be advantageous, in which the cellulose fibers are additionally carbamidated with urea, up to a nitrogen content in the form of carbamide groups of at least 1% by mass, preferably up to 4% by mass.
- Such fibers can be produced under particularly gentle conditions and the ion exchange capacity is higher at the same phosphorus content than with pure phosphorylation products.
- cellulose-containing materials which are carbamidated with urea and phosphorylated with phosphoric acid or ammonium phosphate (DE 19753 196 A1 and DE 199 24435 A1) are used as biosorbent or filter material with an ion-exchanging effect.
- the modified cellulose can be used in various forms, such as, for example, as a fleece piece, as paper-like strips or as loose fibers.
- the agent does not act as a filter and does not bind the flavor and aroma substances in the drink. This was considered unlikely by experts. This also affects the effect that occurs after a short treatment time or immersion phase.
- the agent can be added to a tea bag or introduced in the form of fibers into a liquid-permeable bag to be suspended, which is then suspended in the container filled with brewing water or the cold drinking water.
- the modified cellulose fibers as a starting material for the production of filled or unfilled tea bags, if appropriate in conjunction with conventional tea bag production material. Tests have also shown that after the treatment of drinking water according to the invention the otherwise typical tap water taste has completely disappeared.
- a nitrogen content higher than 4% by mass does not lead to any further improvement, but has an adverse effect on the pollution of the waste water in the manufacturing process. It is therefore expedient in the production to maintain a molar ratio of urea to phosphorus of 2.5: 1 to 4.5: 1.
- the carbamidation and the resulting nitrogen content in the end product improve the mechanical properties of the fibers.
- Fibers with a P content of 5 to 6.5% by mass and an N content of 2 to 3% by mass have proven to be particularly suitable. These fibers have a capacity of 100 to 130 mg copper / g dried fiber. Tests have shown that with one gram of these fibers the total hardness of one liter of water can be reduced by approx. 10 ° dH. It has also been shown that, for example, hardness reductions of just 3 ° dH have a strong, positive influence on the appearance and taste of black teas, which can only be achieved by brewing in the presence of the fibers. Furthermore, it was found that with very hard water with more than 20 ° dH an amount of approx. 2.5 to 3.5 g fibers per liter of drinking water is completely sufficient to achieve the desired effect.
- the operational The amount of modified cellulose per liter of drinking water should be between 0.5 g and 4 g, depending on the hardness of the drinking water used. With decreasing hardness, the amount used can be reduced accordingly. Intensive contact between the drinking water and the fibers or other forms of application favors the effect, fleeces must not be too densely compacted and should, if possible, disintegrate in the water. Their weight per unit area can be 100 to 500 g / m 2 . Papers made from the fibers should be as permeable to water as possible and have basis weights of 50 to 200 g / m. The agent can be brought into contact with the drinking water before or during the heating of the water or also during the brewing process.
- the modified cellulose fibers can be used alone or in a mixture with other heat-resistant fibers. They can be used both as loose fibers or as non-wet-strengthened fleece in a water-permeable bag and in the form of paper-like strips.
- the softening and heavy metal removal effect of the modified fibers which is known per se due to ion exchange, occurs so quickly that even if its addition can only begin during the brewing process of tea or coffee and the like, almost the same effect is still achieved. A sufficient effect is achieved after only a treatment time of a few minutes, preferably 3 to 10 minutes.
- the agent can also remain in the drinking water for a longer period of time, but in extreme cases all softening and heavy metal removal processes are completed after 30 minutes at the latest.
- the modified cellulose fibers are in the ammonium form according to the production known per se from the aforementioned publications and can be converted into the sodium form by treatment with a saline solution.
- the potassium and magnesium forms are particularly preferred because they are suitable to compensate for deficits in the mineral supply. An excess supply is also excluded if comparatively very hard water with 25 ° dH (total hardness) is treated with an excess fiber and only beverages produced with it are consumed (approx. 2 liters per day per person).
- the modified cellulose fibers are intended for single use only and, in their respective form of application, allow an exact predetermined dosage for the respective amount of water. Since a pre-swelling of the fibers is not necessary, a possible microbe infestation no longer plays a role in the known water filters.
- the modified cellulose fibers are inexpensive to manufacture and are easy to use. They have a handy size and can be brought into contact with the drinking water either as a hanging bag or as a strip.
- a fleece of the dimensions 6 cm x 9 cm (basis weight 500 g / m 2 ) modified according to the invention is already completely sufficient for the treatment of a drinking water quantity of 1 liter of very hard water. After use, they can be easily disposed of, for example with the organic waste of coffee and tea residues.
- the agent according to the invention has considerable advantages in its application. It can be used immediately, achieves an even and constant effect during use and does not require any additional filter devices or maintenance.
- Fibers were produced in a known manner from pine sulfate pulp.
- the fibers have an ion exchange capacity of 120 mg copper / g fiber.
- the fibers in the ammonium form were then through
- washing in a column converted into the following with various saline solutions and / or acids into the following forms: A1: with saturated saline in the neutral sodium form.
- A2 with a saturated potassium chloride solution, which was adjusted to pH 3.5 with hydrochloric acid, in a mixed acid / potassium form.
- A3 with dilute magnesium sulfate solution acidified to pH 4 with sulfuric acid in a mixed acid-.magnesium form.
- A4 Fibers according to A1 were converted on a conventional paper machine to wet-strengthened paper with the addition of 25% pine sulfate pulp with a
- Fibers according to A3 were converted on a conventional paper machine to wet-strengthened paper with the addition of 25% pine sulfate pulp with a
- A6 Fibers according to A2 were processed to form a fleece without the addition of wet strength agents or other fibers with a weight per unit area of 500 g / m 2 .
- A7 Fibers according to A3 were processed into a fleece without the addition of wet strength agents or other fibers with a weight per unit area of 500 g / m 2 .
- the coffee cups filled with coffee were provided with a number key for identification, which was only known to a person who did not take part in the assessment.
- the coffee was checked by 5 test persons in each case. Gradations could be assessed according to given questions.
- the mean values were taken from the hidden evaluations.
- the coffee produced without immersing the fleece in the coffee water has a significantly bland and somewhat bitter taste and a significantly less aromatic smell.
- Coffee was brewed under the same conditions as in Example 1, with a piece of paper (dimensions 12 cm ⁇ 20 cm) in the sodium form, produced according to A4, being placed as a folded sheet into the water storage container instead of the fleece.
- a 1 liter kettle was filled with drinking water from the city of Halle / Saale and a commercial tea bag (6.5 cm x 11 cm) was placed in it, which produced a 6 cm x 9 cm piece of fleece in the acidic potassium form according to A6.
- the cooker was switched on. It became hot immediately after the automatic shutdown
- Tea was prepared with drinking water from the city of Halle / Saale under the same conditions as in Example 4.
- the "Meßmer Ceylon” variety was used as tea and, instead of the paper strips, another bag of tea bag material filled with 0.6 g of fiber in the acidic potassium form, prepared in accordance with A2, was used in the water.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
- Packages (AREA)
- Non-Alcoholic Beverages (AREA)
- Tea And Coffee (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003227575A AU2003227575A1 (en) | 2002-04-09 | 2003-04-08 | Rapid-action agent for preparing cold and hot beverages from drinking water |
CA002482140A CA2482140A1 (en) | 2002-04-09 | 2003-04-08 | Rapid-action agent for preparing cold and hot beverages from drinking water |
EP03724974A EP1507921A2 (de) | 2002-04-09 | 2003-04-08 | Schnellwirkendes mittel für die zubereitung von kalt-und heissgetränken aus trinkwasser |
US10/511,005 US20050175758A1 (en) | 2002-04-09 | 2003-04-08 | Rapid-action agent for preparing cold and hot beverages from drinking water |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10215642.5 | 2002-04-09 | ||
DE2002115642 DE10215642A1 (de) | 2002-04-09 | 2002-04-09 | Schnellwirkendes Mittel für die Zubereitung von Kalt- und Heißgetränken aus Trinkwasser |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003085198A2 true WO2003085198A2 (de) | 2003-10-16 |
WO2003085198A3 WO2003085198A3 (de) | 2004-12-09 |
Family
ID=28684867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/003632 WO2003085198A2 (de) | 2002-04-09 | 2003-04-08 | Schnellwirkendes mittel für die zubereitung von kalt-und heissgetränken aus trinkwasser |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050175758A1 (de) |
EP (1) | EP1507921A2 (de) |
AU (1) | AU2003227575A1 (de) |
CA (1) | CA2482140A1 (de) |
DE (1) | DE10215642A1 (de) |
WO (1) | WO2003085198A2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007003410A1 (de) * | 2007-01-23 | 2008-07-31 | Produktions- Und Umweltservice Gmbh | Ionenaustausch-Filterpatrone aus modifizierten Naturfasergarnen zur Entfernung von Partikeln, Schwermetallen und Härtebildnern in der Wasseraufbreitung und deren Herstellung |
DE102012007150A1 (de) * | 2012-04-12 | 2013-10-17 | Bwt Water+More Gmbh | Kartusche zur Trinkwasseraufbereitung sowie Verfahren zur Aufbereitung von Trinkwasser |
US9932249B2 (en) | 2012-04-12 | 2018-04-03 | Bwt Water+More Gmbh | Ion exchange cartridge for treating drinking water |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2012212392A1 (en) * | 2011-02-01 | 2013-05-09 | Australian Biorefining Pty Ltd | Cellulose phosphate powder product and process for manufacture thereof, and application to removal of contaminants from aqueous solutions |
AU2015203191B2 (en) * | 2011-02-01 | 2017-03-09 | Australian Biorefining Pty Ltd | Cellulose phosphate powder product and process for manufacture thereof, and application to removal of contaminants from aqueous solutions |
CN105866203B (zh) * | 2016-03-29 | 2018-06-29 | 福建农林大学 | 一种基于电子舌检测信息的白毫银针滋味等级判别方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4083904A (en) * | 1973-05-16 | 1978-04-11 | Sumitomo Chemical Company, Limited | Method for manufacturing phosphorylated cellulose ester membranes for use in the separation or concentration of substances |
DE19850286A1 (de) * | 1998-10-30 | 2000-05-04 | Eisu Innovative Ges Fuer Techn | Verfahren zur Herstellung von Biosorbentien |
DE19924435A1 (de) * | 1999-05-28 | 2000-11-30 | Eisu Innovative Ges Fuer Techn | Filter aus Filterpapier oder papierartigem Vliesstoff |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3510433A (en) * | 1967-06-05 | 1970-05-05 | Wright Chem Corp | Water treating composition and method |
JP2653423B2 (ja) * | 1995-03-29 | 1997-09-17 | 工業技術院長 | リン酸カルシウム化合物−セルロース繊維複合材料及びその製造法 |
ATE191520T1 (de) * | 1996-02-14 | 2000-04-15 | Akzo Nobel Nv | Cellulosefasern und filamenten mit hoher bruchdehnung |
DE19834916A1 (de) * | 1997-09-09 | 1999-03-11 | Oeste Franz Dietrich | Filterpapier für die Wasserreinigung |
ES2180223T3 (es) * | 1997-12-01 | 2003-02-01 | Eisu Innovative Ges Fur Techni | Biosorbentes y procedimiento para su produccion. |
DE19804882A1 (de) * | 1998-02-09 | 1999-08-12 | Herzog Stefan | Filterhilfsmittel |
DE19842528A1 (de) * | 1998-08-03 | 2000-03-23 | Franz Dietrich Oeste | Imprägnierte Fasermaterialien zur Wasser-, Getränke- und Nahrungsmittel-Reinigung |
KR20040031776A (ko) * | 2001-07-18 | 2004-04-13 | 도꾸리쯔교세이호진 상교기쥬쯔 소고겡뀨죠 | 세정재, 세정 시스템, 표백재 및 환경 보전 조성물 |
-
2002
- 2002-04-09 DE DE2002115642 patent/DE10215642A1/de not_active Withdrawn
-
2003
- 2003-04-08 WO PCT/EP2003/003632 patent/WO2003085198A2/de not_active Application Discontinuation
- 2003-04-08 CA CA002482140A patent/CA2482140A1/en not_active Abandoned
- 2003-04-08 AU AU2003227575A patent/AU2003227575A1/en not_active Abandoned
- 2003-04-08 EP EP03724974A patent/EP1507921A2/de not_active Withdrawn
- 2003-04-08 US US10/511,005 patent/US20050175758A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4083904A (en) * | 1973-05-16 | 1978-04-11 | Sumitomo Chemical Company, Limited | Method for manufacturing phosphorylated cellulose ester membranes for use in the separation or concentration of substances |
DE19850286A1 (de) * | 1998-10-30 | 2000-05-04 | Eisu Innovative Ges Fuer Techn | Verfahren zur Herstellung von Biosorbentien |
DE19924435A1 (de) * | 1999-05-28 | 2000-11-30 | Eisu Innovative Ges Fuer Techn | Filter aus Filterpapier oder papierartigem Vliesstoff |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007003410A1 (de) * | 2007-01-23 | 2008-07-31 | Produktions- Und Umweltservice Gmbh | Ionenaustausch-Filterpatrone aus modifizierten Naturfasergarnen zur Entfernung von Partikeln, Schwermetallen und Härtebildnern in der Wasseraufbreitung und deren Herstellung |
DE102007003410B4 (de) * | 2007-01-23 | 2012-07-12 | Produktions- Und Umweltservice Gmbh | Ionenaustausch-Filterpatrone aus modifizierten Naturfasergarnen zur Entfernung von Partikeln, Schwermetallen und Härtebildnern in der Wasseraufbreitung und deren Herstellung |
DE102012007150A1 (de) * | 2012-04-12 | 2013-10-17 | Bwt Water+More Gmbh | Kartusche zur Trinkwasseraufbereitung sowie Verfahren zur Aufbereitung von Trinkwasser |
US9932249B2 (en) | 2012-04-12 | 2018-04-03 | Bwt Water+More Gmbh | Ion exchange cartridge for treating drinking water |
US10118841B2 (en) | 2012-04-12 | 2018-11-06 | Bwt Water+More Gmbh | Cartridge for the treatment of drinking water and method for purifying drinking water |
Also Published As
Publication number | Publication date |
---|---|
US20050175758A1 (en) | 2005-08-11 |
EP1507921A2 (de) | 2005-02-23 |
AU2003227575A1 (en) | 2003-10-20 |
DE10215642A1 (de) | 2003-11-06 |
WO2003085198A3 (de) | 2004-12-09 |
CA2482140A1 (en) | 2003-10-16 |
AU2003227575A8 (en) | 2003-10-20 |
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