CN1616145A - Process for preparing high efficiency modified fluorine reducd water purifying filter material - Google Patents
Process for preparing high efficiency modified fluorine reducd water purifying filter material Download PDFInfo
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- CN1616145A CN1616145A CN 200310105502 CN200310105502A CN1616145A CN 1616145 A CN1616145 A CN 1616145A CN 200310105502 CN200310105502 CN 200310105502 CN 200310105502 A CN200310105502 A CN 200310105502A CN 1616145 A CN1616145 A CN 1616145A
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- water purification
- regeneration
- fluorine
- filtrate
- preparation technology
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Abstract
The present invention belongs to the field of water processing filtering material producing technology, and includes the preparation of filtering material and the regeneration of filtering material. The preparation process of the filtering material includes crushing aluminosilicate ore material to 10-30 mesh, high temperature activation at 100-800 deg.c for 1-2 hr, cooling to room temperature, water rinsing, and final modification with aluminum sulfate solution for 2-5 hr. The regeneration of the filtering material deactivated after reaction with fluorine containing water is to soak in 2-4 mol/L concentration aluminum sulfate solution as the regenerating agent for 4-10 hr, and the regenerated filtering material may be reused. Compared with available technology, the preparation process has simple process, low cost and other advantages.
Description
1, technical field
The present invention relates to a kind of production technology of water treatment filter material, specifically a kind of high effective and modified preparation technology who falls fluorine water purification filtrate.
2, technical background
1) understands fluorine element
Fluorine is a physiology element the most active in the human body, can suppress or stimulate the activity of some enzyme element, and most of fluoride is present in the rock, and the excessive absorption of human body can cause fluorine poisoning.
2) understanding of endemic fluorosis, distribution and harm
Endemic fluorosis is under the specific geology condition influence in rich fluorine district, the people lives in this environment, and is long-term by the fluorine of drinking-water absorption above physiological requirements, and a kind of slow poisoning illness that causes, mainly being fluorine dental plaque and fluorosis of bone clinically, is a kind of endemic disease of serious harm human health.
Endemic fluorosis is being widely distributed in the whole world, the existing report of more than 30 countries in five continents.The distribution of China fluorine poisoning lesion is also very wide, comprises numerous areas such as Beijing, Inner Mongol, Shandong, Ningxia.
Fluorine poisoning is very serious to wrecking of lesion human body, and is also quite big to the destruction of productivity, caused white elephant for the lesion people's life.
3) necessity of fluorine falls in modify-water
Endemic fluorosis is very harmful, is familiar with by people, and external research work is carried out early.In China, though that research work is carried out is later, the effort through many professionals has also had certain progress, to the occurrence regularity of understanding fluorine poisoning with carry out preventing and controlling, has played important function.But, the essential measure of prevention endemic fluorosis, main still modify-water, the major measure of modify-water is drawn the low fluorine water except looking for low fluorine water source, other places on the spot, adopting physics and chemistry method reducing fluoride content and improving water quality also is a very important approach, adopt which kind of method reducing fluoride content and improving water quality actually, select according to the natural conditions and the economic condition of poisoning lesion.
4) present, the method for domestic and international reducing fluoride content and improving water quality
Both at home and abroad the reducing fluoride content and improving water quality method is mainly by three kinds of medication, ion exchange adsorption and electrochemical processes.
Medication comprises that again the aluminum sulfate method falls fluorine, alum method and fall that fluorine falls in fluorine, aluminium chloride method, limestone-based process falls fluorine, expansion local method and calcium phosphate method and falls fluorine etc.; Ion exchange adsorption comprises that again the activated alumina method falls fluorine, phosphate method and fall fluorine, ion-exchange-resin process and fall that fluorine falls in fluorine, sulfonated coal, sulfonation wood chip method falls fluorine and fluorine etc. falls in the bone meal method.Medication utilizes the flocculating setting principle of aluminium salt to fall fluorine usually, and this method is simple to operate, grasps easily, but certain side effect is arranged; Ion exchange adsorption is selected different filtrates for use, and the ion-exchange absorption characteristic according to filtrate and F generation adopts tower operation, forms two filter beds, and exchange is fallen fluorine with the ion exchange adsorption that regeneration is used alternatingly.This method equipment is simple, and is similar to water softening, easy and simple to handle.The domestic method that adopts aluminium oxide and quartz sand development defluoridation filter material in addition, but cost an arm and a leg, be difficult for promoting.
3, summary of the invention
The purpose of this invention is to provide a kind of preparation technology filtrate simple, that make and not only have good water purification performance, also can do regeneration and handle, make the regeneration filtrate still have the high effective and modified production technology of falling fluorine water purification filtrate of very strong regenerability by regenerative agent.
The objective of the invention is to realize in the following manner, the high effective and modified preparation technology who falls fluorine water purification filtrate comprises the preparation of filtrate and the regeneration of filtrate, and the preparation process of filtrate is to contain SiO
2, TiO
2, Al
2O
3, Fe
2O
3, FeO, MnO, MgO, CaO, Na
2O, K
2O and H
2O
+Aluminosilicate ore Deng composition is a raw material, optional mountain sedimentary rock or volcano intrusive rock or both mixtures of getting fire of aluminosilicate ore, after the pulverizing, filter out granularity 10-30 purpose ore under 100 ℃-800 ℃ high temperature activation processing 1-2 hour, granularity to choose with the 10-20 order be good, temperature preferably is controlled between 350 ℃-450 ℃, high-temperature activation disposes, water is washed behind the cool to room temperature, removing foreign ion, last is that the aluminum sulfate solution of 2-4mol/L carries out the modification processing and promptly got the water purification filtrate in 2-5 hour with concentration again; The regeneration step of filtrate is that the reaction of filtrate and fluorinated water loses activity that to be with concentration that the aluminum sulfate solution of 2-4mol/L is done the regenerative agent immersion just reusable more than 4-10 hour in the back, regeneration after filtrate uses is handled, divide static immersing and two kinds of processing modes of dynamic countercurrent, static immersing regeneration must be more than 6-10 hour, dynamic countercurrent regeneration must be more than 4-8 hour, discarded liquid after regeneration is handled is handled with calcium oxide, to remove F saturated in the liquid
-, in case the direct discharging of liquid is brought pollution to environment.
The invention has the beneficial effects as follows, adopt the filtrate absorption property of this explained hereafter good, can reduce the concentration of fluorine ion in the high-fluorine water greatly, filtrate still can continue to fall fluorine after handling through regeneration, and the trend of using better and better is arranged, simultaneously, this filtrate has also that wearability is good, mechanical strength is high and advantage such as good stability.
4, the specific embodiment
1) preparation of filtrate
Select an amount of high-quality volcanic deposit rock for use, after the pulverizer pulverizing, choose the particle of granularity between the 10-20 order, calcination activation processing under 400 ℃ of high temperature, calcination finishes, naturally cool to water flushing after the room temperature, last is that the aluminum sulfate solution of 2-4mol/L carries out the modification processing and promptly got the water purification filtrate in 2-5 hour with concentration again.
2) filling of filtrate and preliminary treatment
With the water purification filtrate that makes pack into the bottom have in the filtering tank of sieve plate, put one deck 20 purpose nylon graticule mesh above the sieve plate, spread above-mentioned filtrate 30 cm thicks of 10-20 mm particle size on the net, the above-mentioned filtrate of the 10-20 order granularity of packing into then is to being full of the exchange adsorption column.
3) operation
Open outlet valve, allow current flow through filtrate with the flow velocity of 2.8m/h, filtered water is earlier from mouthful discharging of taking a sample to check, and in time check the concentration of fluorine in the discharge water with surveying the fluorine device, after the standard that reaches is promptly less than 1mg/L, close the mouth of taking a sample to check, open the valve that flows into water purifying tank, this water is for drinking.During normal the operation, took a sample to check once in 2 hours at interval, when fluorine concentration was above standard promptly greater than 1mg/L, valve-off was calculated the clean water treatment amount immediately.
4) regeneration is handled
End of run will exchange surplus water emptying in the adsorption column from the mouth of taking a sample to check, injection aluminum sulfate regenerated liquid, discharged 5-10 minute, check with the PH test paper, when PH equals 4.5 left and right sides, valve-off, regenerated liquid gets final product to surpass the filtrate height that makes with said method, soaked 6 hours, and every discharging in 2 hours once, divided four times again the regenerated liquid emptying, open inlet valve, press the operation method and continue operation.
The life cycle of filtrate
Use repeatedly through being not less than 200 times proves, falls fluorine after the filtrate that adopts this production technology to make is handled through regeneration, and the trend of using better and better is arranged.From the structure and the physical property of filtrate, this inorganic ions exchange adsorbing substance really wearability, mechanical strength and stable aspect have special advantage.
The preparation technology of high efficiency modified fluorine reducd water purifying filter material of the present invention is compared with existing technology, and has raw material Easily purchase, technology is simple, production cost is low, be easy to processing, easy to use, the characteristics such as purifying water effect is good, Thereby, have good value for applications.
Claims (5)
1, the high effective and modified preparation technology who falls fluorine water purification filtrate, it is characterized in that with the aluminosilicate ore be raw material, after the pulverizing, with grinding particle size 10-30 purpose ore under 100 ℃-800 ℃ high temperature activation processing 1-2 hour, water is washed behind the cool to room temperature, and last is that the aluminum sulfate solution of 2-4mol/L carries out the modification processing and promptly got the water purification filtrate in 2-5 hour with concentration again.
2, the high effective and modified preparation technology who falls fluorine water purification filtrate according to claim 1 is characterized in that the aluminosilicate ore is one or both a mixture of volcanic deposit rock and volcano intrusive rock.
3, the high effective and modified preparation technology who falls fluorine water purification filtrate according to claim 1 is characterized in that preferably selecting grinding particle size to carry out high-temperature activation at 10-20 purpose ore and handles.
4, the high effective and modified preparation technology who falls fluorine water purification filtrate according to claim 1, temperature preferably is controlled between 350 ℃-450 ℃ when it is characterized in that carrying out the high-temperature activation processing.
5, the high effective and modified preparation technology who falls fluorine water purification filtrate according to claim 1, it is characterized in that filtrate and fluorinated water react the aluminum sulfate solution do regeneration processing that the back usable concentration that loses activity is 2-4mol/L, its processing mode is divided two kinds of static immersing and dynamic countercurrents, static immersing regeneration must be more than 6-10 hour, and dynamic countercurrent regeneration must be more than 4-8 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310105502 CN1616145A (en) | 2003-11-11 | 2003-11-11 | Process for preparing high efficiency modified fluorine reducd water purifying filter material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310105502 CN1616145A (en) | 2003-11-11 | 2003-11-11 | Process for preparing high efficiency modified fluorine reducd water purifying filter material |
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| CN1616145A true CN1616145A (en) | 2005-05-18 |
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| CN 200310105502 Pending CN1616145A (en) | 2003-11-11 | 2003-11-11 | Process for preparing high efficiency modified fluorine reducd water purifying filter material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101406823B (en) * | 2007-10-10 | 2010-11-03 | 宜兴市得力耐磨炉料有限公司 | Method for producing high-efficient defluorination active micropore ceramic stuffing |
| WO2012024911A1 (en) * | 2010-08-27 | 2012-03-01 | 江苏永冠给排水设备有限公司 | Method for regenerating filter material used in removing fluorine from drinking water |
| CN109055748A (en) * | 2018-08-30 | 2018-12-21 | 西北矿冶研究院 | Defluorination chlorine agent and preparation method thereof and method for defluorination chlorine using same |
-
2003
- 2003-11-11 CN CN 200310105502 patent/CN1616145A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101406823B (en) * | 2007-10-10 | 2010-11-03 | 宜兴市得力耐磨炉料有限公司 | Method for producing high-efficient defluorination active micropore ceramic stuffing |
| WO2012024911A1 (en) * | 2010-08-27 | 2012-03-01 | 江苏永冠给排水设备有限公司 | Method for regenerating filter material used in removing fluorine from drinking water |
| CN109055748A (en) * | 2018-08-30 | 2018-12-21 | 西北矿冶研究院 | Defluorination chlorine agent and preparation method thereof and method for defluorination chlorine using same |
| CN109055748B (en) * | 2018-08-30 | 2020-09-25 | 西北矿冶研究院 | Defluorination chlorine agent and preparation method thereof and method for defluorination chlorine using same |
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