CN102060365B - Disposable defluorinating bag for removing fluorine from drinking water - Google Patents
Disposable defluorinating bag for removing fluorine from drinking water Download PDFInfo
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- CN102060365B CN102060365B CN 201010555646 CN201010555646A CN102060365B CN 102060365 B CN102060365 B CN 102060365B CN 201010555646 CN201010555646 CN 201010555646 CN 201010555646 A CN201010555646 A CN 201010555646A CN 102060365 B CN102060365 B CN 102060365B
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Abstract
The invention discloses a disposable defluorinating bag for removing fluorine from drinking water, which comprises an accommodating bag for accommodating a filtering medium, wherein the filtering medium is accommodated in the accommodating bag and comprises activated zeolite powder and magnesium oxide powder in a weight ratio of (10-40):(20-50); and the accommodating bag is made of a water permeable material. Compared with the prior art, the provided disposable defluorinating bag has the remarkable characteristic of convenience of use, and because the filtering medium is an environmentally-friendly material, the used bag can be directly discarded. In addition, because the provided disposable defluorinating bag is convenient to manufacture, low in cost and convenient to use, the bag is particularly suitable for households, hotels or other offices. Experimental results prove that: the provided disposable defluorinating bag has an ideal effect of removing fluoride ions from water.
Description
Technical field
The present invention relates to water treatment field, be specifically related to a kind of disposable defluorination bag for removing the drinking water fluorine.
Background technology
Fluorine is one of trace element of needed by human, and the suitable fluorine mass concentration of drinking water is 0.5～1mg/L.When fluorine contains quantity not sufficient in the drinking water, easily suffer from dental caries; If but the long-term drinking mass concentration is higher than 1mg/L, can cause that then the fluorine dental plaque is sick; Long-term drinking fluorine mass concentration is that the water of 3～6mg/L can cause fluorosis of bone.
At present, owing to the reasons such as pollution of industry and agricultural, cause the fluorine-containing underground water that exceeds standard of China to distribute very extensive.At northwest arid area, approximately there are 7,000 ten thousand people to drink the water that fluorinated volume exceeds standard, caused fluorine poisoning in various degree.Many countries and regions in the world, the problem that also all exists Fluorine of Drinking Water in various degree to exceed standard.Therefore, defluorinating process is the important topic of domestic and international environmental protection and health field always, especially since nearly two, 30 years, a large amount of research has been carried out in the processing of fluorinated water both at home and abroad, some progress that the research of defluorinating process and relevant basic theory is also obtained.At present, the defluorination method of fluorinated water has chemical precipitation method, coagulation sedimentation, absorption method etc.
Chemical precipitation method refers generally to calcium salt precipitation method, and namely feeding lime and soluble calcium salt in the waste water such as calcium sulfate and calcium chloride etc., make F
-And Ca
2+Generate CaF
2The precipitation and remove.Lime and calcium sulfate low price, but solubility is little, can only add with emulsion, because the CaF that generates
2Precipitation is wrapped in Ca(OH)
2Or CaSO
4Particle surface makes it and can not be fully utilized, thereby consumption is very large, and suspension content is higher in the water.In the prior art, generally adopt chemical coprecipitation that industrial fluoride waste is processed, be not suitable for for the treatment of drinking water.
Coagulant sedimentation refers to utilize the aluminum salts such as aluminum sulfate, polymeric aluminum that fluorinated water is processed.When making aluminum sulfate, the best pH of coagulation is 6.4～7.2, but dosage is larger, need add 150～1000g according to different situations water per ton, and this can make and contain a certain amount of dissolved aluminum harmful to health in the water.Therefore be not suitable for the processing of drinking water yet.
Absorption method refers to utilize adsorbent that fluorinated water is processed, at present adsorbent commonly used active fruit shell carbon, bamboo charcoal, activated carbon fiber, bentonite, bauxite arranged, redly carry, the tens of kinds of adsorbents such as active charing aluminium, terres rares adsorbent, calcium hydroxy phosphate, flyash, humic acid, lignin.In the prior art, when selecting above-mentioned adsorbent, also needing simultaneously to be equipped with preferably using method, generally is to adopt industrialized adsorbent bed, fixed bed, fluid bed etc., fluorinated water is contacted with adsorbent in said apparatus, thereby reach the effect of defluorination.Although the said apparatus defluorination has good effect since safeguard cumbersome, therefore and be not suitable for the drinking water treatment of home terminal.
Summary of the invention
The technical problem that the present invention solves is, a kind of disposable defluorination bag for removing Fluorine of Drinking Water is provided, compared with prior art, disposable defluorination bag provided by the invention is easy to use, is particluarly suitable for the drinking water terminal use occasions such as family, hotel, office and uses.
In order to solve above technical problem, the invention provides a kind of disposable defluorination bag for removing the drinking water fluorine, comprising:
Be used for holding the bag container of filter medium, in described accommodating belt filter medium be housed, described filter medium comprises that weight ratio is active zeolite powder and the magnesia powder of 10～40:20～50, and the material of described bag container is dank material.
Preferably, the material of described bag container is filter paper or gauze.
Preferably, be connected with at described bag container and carry rope.
Preferably, to divide the weight ratio with magnesia powder be 15～35:25～45 to described active zeolite.
Preferably, the granularity of described active zeolite powder is 44 μ m～124 μ m.
Preferably, the granularity of described active zeolite powder is 55 μ m～110 μ m.
Preferably, the granularity of described magnesia powder is 35 μ m～125 μ m.
Preferably, the granularity of described magnesia powder is 35 μ m～125 μ m.
Preferably, described filter medium also comprises the tamarind composite of 25 weight portions～45 weight portions
The invention provides a kind of disposable defluorination bag for removing the drinking water fluorine, the invention provides a bag container, the material of described bag container is dank material, in described bag container filter medium is arranged.Compared with prior art, the characteristics of disposable defluorination bag maximum provided by the invention are easy to use, because filter medium is environment-friendly materials, can directly abandon after therefore using.In addition since disposable defluorination bag provided by the invention easy to make, cost is low, easy to use, be particularly suitable for being convenient to use in family, hotel or other office spaces.Experimental result shows, disposable defluorination bag provided by the invention has desirable effect for the fluorine ion of removing in the water.
The specific embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, but should be appreciated that these describe just as further specifying the features and advantages of the present invention, rather than to the restriction of claim of the present invention.
A kind of disposable defluorination bag for removing fluorine in the water drinking water provided by the invention comprises:
Be used for holding the bag container of filter medium, in described accommodating belt filter medium be housed, described filter medium comprises that weight ratio is active zeolite powder and the magnesia powder of 10～40:20～50, and the material of described bag container is dank material.
Active zeolite powder of the present invention is that natural zeolite powder obtains through activation processing.The activation processing of natural zeolite can adopt following method: first natural zeolite powder is cleaned up, dries with deionized water, take by weighing the zeolite of certain mass, be immersed in the certain density activator solution, fully stir and be no less than 2 hours, filter after the neutralization, clean up dry for standby with deionized water.
Activator can be the HCl of 0.05～0.3mol/L, the H of 0.01～0.05mol/L
2SO
4, the mixed solution of the HCl of the NaCl of 0.2-1.0mol/L, the NaOH of 0.05-0.25mol/L or 0.03～0.15mol/L and the NaCl of 0.2-1.0mol/L.When activator is HCl and NaCl mixed solution, optium concentration NaCl is 0.8mol/L, and HCl is 0.09mol/L, and the time when adopting activator that zeolite is carried out activation processing should be no less than 2 hours usually, preferably be no less than 4 hours, can activate fully fully this moment.
Natural zeolite can also carry out activation processing by following technique: be the hydrochloric acid of 4-10wt% or sulfuric acid impregnation process 10～20 hours with natural zeolite powder concentration, in sodium carbonate or caustic alkali and after the washing, poach is 30～60 minutes again, to boil the Zeolite dehydration that has, then at 350 ℃～580 ℃ roasting temperatures, then be crushed to needed granularity.
Zeolite can be removed contained impurity and DDGS in the mineral remittance through after the activation processing, etches abundant hole and vestibule in mineral structure, increases its contact area, thus the character such as the absorption of raising zeolite, ion-exchange.In the present invention, the granularity of active zeolite powder is preferably 44 μ m～124 μ m, more preferably 55 μ m～110 μ m, more preferably 68 μ m～95 μ m.
Magnesia powder is commonly called as magnesia or lamp powder, and English name is Magnesium oxide, and molecular formula is MgO, and molecular weight is 40.30, magnesia odorless, tasteless, water insoluble and ethanol.Magnesia is exposed in the air, easily absorbs moisture and carbon dioxide, generates magnesium hydroxide with the water reaction.Magnesium hydroxide is a kind of alkalescent material, is a kind of environmentally friendly water treatment agent, has good adsorption effect for fluorine.Magnesium oxide granularity among the present invention is preferably 35 μ m～125 μ m, is preferably 45 μ m～95 μ m, more elects 55 μ m～85 μ m as.Magnesian activity of the present invention represents to be preferably 80～120mg1/g with iodine absorption value, and specific area is preferably 5～20m
3/ g.
A kind of preferred embodiment in, filter medium provided by the invention also comprises the tamarind composite of 25 weight portions～45 weight portions, and described tamarind composite is to be tamarind to be loaded on cationic ion-exchange resin and the calcium chloride form with described tamarind composite.
Described tamarind gum composite prepares by the following method, comprising:
Get the weight ratio that the tamarind rubber powder mixes with water according to 1:3～1:8 and be mixed to get the first mixture, preferred, the weight ratio of described tamarind rubber powder and water is 1:3～1:5, more preferably 1:4;
In described the first mixture, add cationic ion-exchange resin and be mixed to get the second mixture, the weight ratio of described cationic ion-exchange resin and described prince sieve rubber powder is 1:2～2:1,1:1 more preferably, the average grain diameter of described cationic ion-exchange resin is preferably 0.15～5mm, more preferably 0.25～0.84mm;
Described the second mixture is heated to boiling, Separation of Solid and Liquid, the solid particle of obtaining joins to mix in the calcium chloride water and obtains the 3rd mixture, the mass concentration of described calcium chloride water is preferably 10%～50%, more preferably 25%～35%, the weight ratio of the calcium chloride in the described calcium chloride water and tamarind rubber powder is preferably 1:4～1:6;
With described the 3rd mixture heating, heating-up temperature is preferably 40 ℃～60 ℃, is preferably 45 ℃～55 ℃, filters, and drying obtains the tamarind gum composite.
Cationic ion-exchange resin and calcium chloride are as ion-exchanger, the present invention loads on tamarind gum respectively and can make above-mentioned substance that absorption and the exchange of fluorine are reached more preferably effect on cationic ion-exchange resin and the calcium chloride, so not only improve and remove efficient, and the raising capacity, and prolonged service life of cationic ion-exchange resin and these two kinds of ion-exchangers of calcium chloride.
Tamarind gum (tamarind gum), also claim tamarind seed polysaccharide glue or tamarind gum, belong to the water soluble polymer adhesive, it can absorb the fluorine ion in the water, the present invention loads on it on cationic ion-exchange resin and the calcium chloride, therefore tamarind is combined to the adsorption process of 4-TBP and the desalination processes of cationic ion-exchange resin and calcium chloride, can improve exchange capacity and to the exchange efficiency of fluorine ion, thereby also prolonged the service life of cationic ion-exchange resin.Preferred use particle diameter is 45 μ m～100 μ m among the present invention, and more preferably the tamarind carbohydrate gum powder of 55 μ m～85 μ m is as raw material.
The cationic ion-exchange resin for preparing in the described tamarind gum composite can be weak-acid cation-exchange resin, also can be storng-acid cation exchange resin or their mixture, the storng-acid cation exchange resin in the described cationic ion-exchange resin mixture and the volume ratio of weak-acid cation-exchange resin are 1:2～2:1.The object lesson of middle strong acidity cationic ion-exchange resin of the present invention can be sulfonic acid or the sodium salt of styrene divinyl copolymer, the sodium salt shape HGR-W2 of article number such as The Dow Chemical Co.'s system, but be not limited to this.The object lesson of weak-acid cation-exchange resin can be acrylic acid (or 2-methacrylic acid) divinylbenzene copolymer or its sodium salt, the sodium salt shape MAG-3 of article number such as The Dow Chemical Co.'s system, but be not limited to this.
According to the present invention, the material of described bag container is preferably degradable filter paper or gauze, the effect of bag container is to hold filter medium, and prevent that filter medium from exposing from bag container, but bag container needs water freely to enter, so the hole of bag container should be less than the particle diameter of filter medium, the wrapping paper that can use disposable bags to make tea, the material selection of bag container belongs to those skilled in the art's common practise, as long as can satisfy above-mentioned requirements.In addition, arrange on can also bag container and carry rope, in use, in the water of disposable defluorination bag bubble in cup, carrying rope and riding over the wall of cup outside, after bubble a period of time, disposable defluorination bag is brought out from water get final product by carrying rope.
Compared with prior art, the characteristics of disposable defluorination bag maximum provided by the invention are easy to use, because filter medium is environment-friendly materials, can directly abandon after therefore using.In addition since disposable defluorination bag provided by the invention easy to make, cost is low, easy to use, be particularly suitable for being convenient to use in family, hotel or other office spaces.Experimental result shows, disposable defluorination bag provided by the invention has desirable effect for the fluorine ion of removing in the water.
Below with specific embodiment effect of the present invention is described, but protection scope of the present invention is not limited by the following examples.
Embodiment 1
The natural zeolite powder that with granularity is first 50 μ m～75 μ m cleans up with deionized water, and oven dry is immersed in the HCl solution of 0.3mol, stirs 7 hours, uses among the NaOH and rear filtration, cleans up dry for standby with deionized water again.
Embodiment 2 granularities are
First natural zeolite powder is cleaned up with deionized water, oven dry is immersed in the HCl solution of 0.3mol, stirs 8 hours, with among the NaOH and after, poach 30 minutes filters drying, 450 ℃ of calcinings 3 hours, then after being crushed to granularity and being 50 μ m～75 μ m, clean up dry for standby with deionized water.
Embodiment 3
Get tamarind rubber powder 1000g, add pure water 5000ml mixing and stirring and obtain the first mixture;
In described the first mixture, add storng-acid cation exchange resin 1000g and be mixed to get the second mixture;
Described the second mixture is heated to boiling, Separation of Solid and Liquid, it is that 35% calcium chloride water gathers to mix and obtains the 3rd mixture that the solid particle of obtaining joins mass concentration, the weight ratio of calcium chloride and tamarind rubber powder is 1:2;
The 3rd mixture is heated to 55 ℃, filters, drying obtains the tamarind gum composite.
Embodiment 4
Bag container is selected filter paper, and the granularity of magnesia powder is 55 μ m～80 μ m, and iodine absorption value is 80～120mg1/g, and specific area is 5～20m
3/ g;
The active zeolite powder of getting 10g embodiment 1 preparation be encased in the bag container after the 20g magnesia powder mixes, make a stay cord on the limit of bag container and obtain disposable defluorination bag.
Embodiment 5
Bag container is selected filter paper, and the granularity of magnesia powder is 55 μ m～80 μ m, and iodine absorption value is 80～120mg1/g, and specific area is 5～20m
3/ g;
The active zeolite powder of getting 10g embodiment 2 preparation be encased in the bag container after the 12.5g magnesia powder mixes, make a stay cord on the limit of bag container and obtain disposable defluorination bag.
Embodiment 6
Bag container is selected filter paper, and the granularity of magnesia powder is 55 μ m～80 μ m, and iodine absorption value is 80～120mg1/g, and specific area is 5～20m
3/ g;
Be encased in the bag container after the tamarind gum composite of getting active zeolite powder, 12.5g magnesia powder, 15g embodiment 3 preparations of 10g embodiment 1 preparation mixes, make a stay cord on the limit of bag container and obtain disposable defluorination bag.
Embodiment 7
Bag container is selected filter paper, and the granularity of magnesia powder is 55 μ m～80 μ m, and iodine absorption value is 80～120mg1/g, and specific area is 5～20m
3/ g;
Be encased in the bag container after the tamarind gum composite of getting active zeolite powder, 12.5g magnesia powder, 20g embodiment 3 preparations of 10g embodiment 1 preparation mixes, make a stay cord on the limit of bag container and obtain disposable defluorination bag.
Comparative example 1
Bag container is selected filter paper, and the granularity of magnesia powder is 55 μ m～80 μ m, and iodine absorption value is 80～120mg1/g, and specific area is 5～20m
3/ g;
Be encased in the bag container after the tamarind gum composite of getting 3 preparations of 12.5g magnesia powder, 20g embodiment mixes, make a stay cord on the limit of bag container and obtain disposable defluorination bag.
Comparative example 2
Bag container is selected filter paper;
Be encased in the bag container after the tamarind gum composite of getting the active zeolite powder of 10g embodiment 1 preparation and 20g embodiment 3 preparations mixes, make a stay cord on the limit of bag container and obtain disposable defluorination bag.
Get embodiment 4,5,6,7 and comparative example 1, comparative example 2 preparations disposable to go out fluorine bag immersion capacity be in the boiling water of 1L, soak time is 5 minutes, respectively to boiling water before immersion and the fluorine content after soaking test, referring to table 1:
Fluorine content in the water before and after the disposable defluorination bag of table 1 use soaks, unit: mg/L
As can be seen from Table 1, utilize disposable defluorination bag of the present invention to obtain good effect for removing the fluorine of quoting in the water, the disposable defluorination bag that has especially wherein added the tamarind gum composite has more significantly effect.
Above disposable defluorination bag to the fluorine for removing drinking water provided by the present invention is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (6)
1. a disposable defluorination bag that is used for removing the drinking water fluorine is characterized in that, comprising:
Be used for holding the bag container of filter medium, in described bag container filter medium be housed, described filter medium comprises that weight ratio is active zeolite powder and the magnesia powder of 10～40:20～50, also comprises the tamarind gum composite of 25 weight portions～45 weight portions;
The material of described bag container is filter paper or gauze;
Described tamarind gum composite is tamarind gum to be loaded on cationic ion-exchange resin and the calcium chloride form;
Described tamarind gum composite manufacture method is:
The tamarind rubber powder is mixed according to the weight ratio of 1:3～1:8 with water, obtain the first mixture;
Add cationic ion-exchange resin and be mixed to get the second mixture in described the first mixture, the weight ratio of described cationic ion-exchange resin and described tamarind rubber powder is 1:2～2:1;
Described the second mixture is heated to boiling, Separation of Solid and Liquid, the solid particle of obtaining joins to mix in the calcium chloride water and obtains the 3rd mixture;
With described the 3rd mixture heating, to filter, drying obtains the tamarind gum composite.
2. disposable defluorination bag according to claim 1 is characterized in that, is connected with at described bag container and carries rope.
3. disposable defluorination bag according to claim 1 is characterized in that, the weight ratio of described active zeolite powder and magnesia powder is 15～35:25～45.
4. according to claim 1 to 3 each described disposable defluorination bags, it is characterized in that, the granularity of described active zeolite powder is 44 μ m～124 μ m.
5. disposable defluorination bag according to claim 4 is characterized in that, the granularity of described active zeolite powder is 55 μ m～110 μ m.
6. according to claim 1 to 3 each described disposable defluorination bags, it is characterized in that, the granularity of described magnesia powder is 35 μ m～125 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010555646 CN102060365B (en) | 2010-11-23 | 2010-11-23 | Disposable defluorinating bag for removing fluorine from drinking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010555646 CN102060365B (en) | 2010-11-23 | 2010-11-23 | Disposable defluorinating bag for removing fluorine from drinking water |
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| Publication Number | Publication Date |
|---|---|
| CN102060365A CN102060365A (en) | 2011-05-18 |
| CN102060365B true CN102060365B (en) | 2013-03-27 |
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|---|---|---|---|
| CN 201010555646 Expired - Fee Related CN102060365B (en) | 2010-11-23 | 2010-11-23 | Disposable defluorinating bag for removing fluorine from drinking water |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107822445A (en) * | 2017-12-16 | 2018-03-23 | 宁波科邦华诚技术转移服务有限公司 | A kind of cup lid spiral agitating type fluorine-filtering cup |
| CN107960820A (en) * | 2017-12-16 | 2018-04-27 | 宁波科邦华诚技术转移服务有限公司 | A kind of spiral fluorine-filtering cup |
| CN109626628A (en) * | 2018-12-07 | 2019-04-16 | 江西赣锋循环科技有限公司 | A kind of processing method of high fluorine waste water |
| CN113384935A (en) * | 2021-07-14 | 2021-09-14 | 武汉钜能科技有限责任公司 | Oil-absorbing decoloring filter bag and preparation method thereof |
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| CN2199190Y (en) * | 1994-04-05 | 1995-05-31 | 于祚斌 | Multifunctional household apparatus for removing arsenic of drinking water |
| CN1554590A (en) * | 2003-12-21 | 2004-12-15 | 谢丰伟 | Method for purifying drinking water by using artificial quartz sand instead of natural sand |
| CN2737780Y (en) * | 2004-10-29 | 2005-11-02 | 朱静风 | Drinking water filtering bag |
| CN201223746Y (en) * | 2008-07-14 | 2009-04-22 | 天津市西海康体环保科技有限公司 | Pocket type apparatus for filtering water |
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2010
- 2010-11-23 CN CN 201010555646 patent/CN102060365B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2199190Y (en) * | 1994-04-05 | 1995-05-31 | 于祚斌 | Multifunctional household apparatus for removing arsenic of drinking water |
| CN1554590A (en) * | 2003-12-21 | 2004-12-15 | 谢丰伟 | Method for purifying drinking water by using artificial quartz sand instead of natural sand |
| CN2737780Y (en) * | 2004-10-29 | 2005-11-02 | 朱静风 | Drinking water filtering bag |
| CN201223746Y (en) * | 2008-07-14 | 2009-04-22 | 天津市西海康体环保科技有限公司 | Pocket type apparatus for filtering water |
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