CN101637715B - Filter medium for removing diethylstilbestrol in water and preparation method thereof - Google Patents
Filter medium for removing diethylstilbestrol in water and preparation method thereof Download PDFInfo
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- CN101637715B CN101637715B CN200910168249A CN200910168249A CN101637715B CN 101637715 B CN101637715 B CN 101637715B CN 200910168249 A CN200910168249 A CN 200910168249A CN 200910168249 A CN200910168249 A CN 200910168249A CN 101637715 B CN101637715 B CN 101637715B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- RGLYKWWBQGJZGM-ISLYRVAYSA-N diethylstilbestrol Chemical compound C=1C=C(O)C=CC=1C(/CC)=C(\CC)C1=CC=C(O)C=C1 RGLYKWWBQGJZGM-ISLYRVAYSA-N 0.000 title claims abstract description 30
- 229960000452 diethylstilbestrol Drugs 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 53
- 229960000892 attapulgite Drugs 0.000 claims abstract description 40
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 40
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 40
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 39
- 239000004113 Sepiolite Substances 0.000 claims abstract description 38
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 22
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000003651 drinking water Substances 0.000 claims abstract description 12
- 235000020188 drinking water Nutrition 0.000 claims abstract description 12
- 238000005245 sintering Methods 0.000 claims abstract description 10
- 238000005303 weighing Methods 0.000 claims description 25
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 19
- 235000013312 flour Nutrition 0.000 claims description 17
- 239000004575 stone Substances 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 15
- 230000004913 activation Effects 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 238000006386 neutralization reaction Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 abstract description 13
- 239000003795 chemical substances by application Substances 0.000 abstract description 12
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 238000007654 immersion Methods 0.000 description 6
- -1 titanate ester Chemical class 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 239000003905 agrochemical Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229910008051 Si-OH Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910006358 Si—OH Inorganic materials 0.000 description 2
- 239000002156 adsorbate Substances 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 229940011871 estrogen Drugs 0.000 description 2
- 239000000262 estrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000009827 Prunus armeniaca Nutrition 0.000 description 1
- 244000018633 Prunus armeniaca Species 0.000 description 1
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 238000003975 animal breeding Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000018678 bone mineralization Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002124 endocrine Effects 0.000 description 1
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- 235000013305 food Nutrition 0.000 description 1
- 235000012631 food intake Nutrition 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- 239000005335 volcanic glass Substances 0.000 description 1
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Abstract
The invention discloses a preparation method of a filter medium for removing diethylstilbestrol in water. The preparation method comprises the following steps: a) mixing raw materials containing ultrahigh molecular weight polyethylene, active carbon, sepiolite powder, attapulgite powder and hole forming agent, wherein the weight ratio of the ultrahigh molecular weight polyethylene, the active carbon, the sepiolite powder, the attapulgite powder and the hole forming agent is 200-350:50-100:40-100:50-100:50-120; and b) pressing, sintering and cooling the obtained mixture in a mould. The invention also discloses the filter medium prepared according to the preparation method. Compared with the prior art, the invention can remove the diethylstilbestrol in the water with a removal rate of over 95 percent so as to achieve the aim of improving the water quality; in addition, the method is simple, and the raw materials for preparing the filter medium are widely available and have low cost. The technical scheme is in particular applicable for the treatment of drinking water polluted by the diethylstilbestrol.
Description
Technical field
The present invention relates to a kind of filter medium that is used for removing the water diethylstilbestrol and preparation method thereof.
Background technology
Industry causes water resource to be seriously damaged with developing rapidly of agricultural; Industrial wastewater discharge is in rivers, lake; Agricultural chemicals, agrochemical be the discharging wantonly of use and house refuse and sanitary wastewater in a large number; The water quality variation that these all cause underground water and surface water causes producing in the water a lot of harmful materials.Water pollutes more and more becomes the severe problem that influences people's life.
Most species is a kind of in the environment incretion interferent, is the incretion interferent with estrogen active.Mainly contain natural estrogen, industrial products (agricultural chemicals), surfactant, titanate ester, medicine class (diethylstilbestrol) etc.The overwhelming majority is long-term accumulated in human and other biological body easily, disturbs normal endocrine metabolism of organism and reproductive function.
Diethylstilbestrol, vehicle economy S claims DES again, and popular name is the Diethylstilbestrol, and chemical name is a biphenol.Because of it can promote the synthetic of albumen, accelerate to put on weight and the bone calcification, reduce food consumption simultaneously, the short length of usually being used as pig, ox, sheep, chicken, duck, fish, shrimp increases the meat agent.Also often use at aspects such as human cosmetics, beauty treatment, rich breasts.But diethylstilbestrol can cause cancer, also can bring disaster to the next generation in the medication of animal pregnancy duration, so many countries have banned use of diethylstilbestrol, China also began to ban use of in 1999.Because the multiple effectiveness of finding successively later on that substitutes medicine of urging long animal production can not show a candle to diethylstilbestrol, makes its use in animal-breeding remain incessant after repeated prohibition.At the city domestic sewage of many countries and regions, culture in water, the surface water and show higher detection concentration, even in drinking water seedbed, running water output water and water distributing network, also detect again and again, the water quality safety of drinking water in serious threat.
At present, also there is not a kind of method that can efficiently remove the diethylstilbestrol in the drinking-water.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of filter medium that is used for removing the water diethylstilbestrol, and this filter medium cost is low, and when being used for removing the water diethylstilbestrol, clearance is high.
In order to solve above technical problem, the present invention adopts following technical scheme:
A kind of preparation method of filter medium that is used for removing the water diethylstilbestrol comprises the steps:
The raw material that a) will comprise ultra-high molecular weight polyethylene, active carbon, sepiolite powder, attapulgite powder and gas generation agent mixes, and the weight ratio of said ultra-high molecular weight polyethylene, active carbon, sepiolite powder, attapulgite powder and gas generation agent is 200～350: 50～100: 40～100: 50～100: 50～120;
B) mixture of step a) gained is suppressed sintering, cooling in mould.
Preferably, the weight ratio of said ultra-high molecular weight polyethylene, active carbon, sepiolite powder, attapulgite powder and gas generation agent is: 300～310: 80～90: 70～80: 60～70: 110～120.The inventor finds, the weight ratio of said ultra-high molecular weight polyethylene, active carbon, sepiolite powder, attapulgite powder and gas generation agent is in this scope the time, and the filter medium of preparation is significantly improved to the clearance of diethylstilbestrol.
Said ultra-high molecular weight polyethylene is a weight average molecular weight greater than 1,000,000 polyethylene, and preferably using weight average molecular weight is 250～4,000,000 polyethylene.Ultra-high molecular weight polyethylene can obtain from domestic production producer, and the product of M-I (molecular weight is 150 ± 500,000), M-II (molecular weight is 250 ± 500,000), M-III (molecular weight is 350 ± 500,000), M-IV specifications such as (molecular weight are greater than 4,000,000) can be provided like Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be.An effect of ultra-high molecular weight polyethylene is bonding and the effect that forms the filter medium skeleton, utilizes ultra-high molecular weight polyethylene to pass through compacting in addition, and the filter medium that sintering obtains forms micropore easily, can play the effect of diethylstilbestrol in the adsorbed water.The particle diameter of ultra-high molecular weight polyethylene is 74～89 microns.
Active carbon is a kind of porous material, and it has like cellular pore structure, huge specific area, special surface functional group, stable physics and chemical property, is good adsorbent, catalyst or catalyst carrier.Can be divided into wood activated charcoal according to raw material sources different activities charcoal, like cocoanut active charcoal, apricot shell active carbon, wooden burgy etc.; The mineral raw material active carbon is the active carbon that raw material is processed like various coals and oil and elaboration products thereof; The active carbon that other raw material is processed, the active carbon of processing like scrap rubber, waste plastics etc.Be that the active carbon intensity in source is higher, absorption property is better wherein with the coconut husk material.The specific area of preferred active carbon is not less than 500 meters squared per gram, more preferably is not less than 1000 meters squared per gram.
Active carbon is impurity, the especially medical activated carbon in the adsorbed water efficiently, and as the product through the relevant drug surveilance standard of country, impurity content is lower, and surface area is bigger, and adsorption effect is also better.Select for use medical activated carbon can guarantee that filter medium directly is used for the processing of drinking water.In addition, the employing particle diameter is 74～89 microns a medical activated carbon, and effect can be better.
Sepiolite can be divided into two types of hot-liquid type sepiolite and appositional pattern sepiolites according to the reason that forms, and is commonly referred to α-type sepiolite and β-type sepiolite.The hot-liquid type sepiolite ore deposit is formed by the hydrothermal solution direct crystallization or is formed through the low temperature hot liquid alteration by volcanic glass, the mineral that contain magnesium, often originates in the dolomitic limestone that is rich in magnesium, the white clouds matter Dali rock; Normal and the carbonate rock of appositional pattern sepiolite deposit, clay rock symbiosis are generated by diagenesis.Hot-liquid type sepiolite is the fibre bundle shape, MgO (magnesia) and SiO
2(silica) content is high, Al
2O
3(aluminium oxide) content is low, is rich magnesium sepiolite; The appositional pattern sepiolite is argillaceous, but observation still is fibrous under electron microscope, modified meerschaum Al
2O
3Content is high, Mg and SiO
2Content is low, is rich meerschalminite.Sepiolite has big specific area and pore volume, and passage and the space of running through total are arranged, and there are three types of activated centres in the sepiolite surface: the oxygen atom in (1) silicon-oxy tetrahedron layer, thus oxygen atom provides weak electric charge to carry out the absorption to adsorbate; (2) hydrone of position and magnesium ion coordination on the edge of, they can form hydrogen bond with adsorbate; (3) at tetrahedral outer surface; Si-O-Si bond fission and the Si-OH ion cluster that produces; Come the electric charge of compensate for residual through a proton or a polyhydroxylated molecule, these ion clusters distribute along the spacing of fiber axis with 5 dusts, and its quantity depends on the size of fiber and the scarce cave of crystal.These Si-OH ion clusters can with the interaction of molecules that is attracted on the sepiolite outer surface, can also form covalent bond with some organic reagents.These activated centres make that the absorption property of sepiolite is fabulous, comprise the organic compound that adsorbs nonpolar or low pole.Preferred use particle diameter is 18～150 microns a sepiolite powder.The sepiolite powder specific area that particle diameter is little is big, brings into play suction-operated more easily.Better through the sepiolite powder effect of activation processing, can make acid activation, for example working concentration be 0.1～20% sulfuric acid 20～100 ℃ of immersion treatment 1～15h of temperature (hour).
Attapulgite is a monoclinic system, and its desirable chemical formula does; Mg
5(H
2O)
4[Si
4O
10]
2(OH)
2, the chemical composition theoretical value is MgO 23.83%, SiO
256.96%, H
2O 19.21%.The attapulgite of occurring in nature often has Al
3+, Fe
3+Deng isomorphous replacement, rich Al
3+, Fe
3+Mutation be called aluminium attapulgite and iron attapulgite.Composition like the aluminium attapulgite powder of the Dragon King of Xuyi County, Jiangsu Province mountain products is SiO
258.38%, MgO 12.10%, Al
2O
39.50%, CaO 0.40%, TiO
20.56%, MnO 0.05%, Fe
2O
3+ FeO 5.26%, Na
2O1.10%, K
2O 1.24%.Because attapulgite has the major path of similar zeolite in structure, therefore have good adsorption and decoloration performance, and radioactive substance is had the good adsorption performance.SiO in the absorption property of attapulgite powder and the mineral
2Content relevant, the high more absorption affinity of content is strong more, the performance of the attapulgite powder after acid activation is handled is better.The attapulgite powder is preferably 74～89 microns attapulgite powder.
The acid activation method of attapulgite powder is more, and sulfuric acid process, salt acid system, sulfuric acid-mixed in hydrochloric acid method etc. are arranged.Like application number is the soak activating process that the patent of invention of CN90105849.1 discloses a kind of attapulgite powder, comprises the about 0.5～100cm of the volume of fritter
3The Concave-convex clay rod raw ore; Using concentration is the inorganic acid solution of 1～15wt%; Like sulfuric acid, hydrochloric acid solution etc., static immersion 2～100 hours is filtered extruding in flakes; 280～350 ℃ of following activation 30～50 minutes, the decolorizing ability that is ground into 50～100 microns was 250 ± 5 active attapulgite stone flour with revolving drier.
Gas generation agent is selected at least a in Celogen Az, food-grade carbonic hydroammonium, the oxalic acid.As preferably, gas generation agent is Celogen Az or food-grade carbonic hydroammonium.Wherein, food-grade carbonic hydroammonium is also claimed AMMONIUM BICARBONATE FOOD GRADE, distinguishes mutually with technical grade carbonic hydroammonium.Though technical grade carbonic hydroammonium also has the effect of sending out the hole, it may contain the impurity of insalubrity, should not be as the raw materials for production of drinking water filter medium.Gas generation agent is one type and is prone to the decomposition a large amount of gases of generation and causes a material of sending out the hole effect that wherein azo compound, sodium acid carbonate, carbonic hydroammonium, ammonium carbonate, sulphonyl nitrile compounds, oxalic acid etc. are its typical representatives.Wherein, preferably use food-grade carbonic hydroammonium.
Pressing pressure can be chosen as 0.4～1.0MPa, and sintering temperature is: 230～240 ℃, sintering time is 120～150 minutes, and being cooled to 40～60 ℃ promptly can the demoulding.
Though the present invention has carried out comparatively detailed description for several kinds of used in the step a) among above-mentioned preparation method raw materials, the present invention is not limited to this kind theory or other any theory.Still be not sure of for the concrete chemical change between them, the variation of structure in the preparation process.The filter medium that these several kinds of raw materials are prepared through above-mentioned PROCESS FOR TREATMENT can effectively be removed the diethylstilbestrol in the water, and synergy is arranged, and can the diethylstilbestrol in the water fully be absorbed.
In the present invention; For blend step; Can think that any low shear mixer or agitator that can significantly not change diameter of particle and size distribution all is suitable for; Such as the agitator with blunt impeller blade, drum-type blender, spiral agitator etc., rotating speed will be looked the type of blender and decide, but is advisable with the dust of avoiding kicking up.
Mixed powder is filled in the pre-designed mould, and with its compacting, pressure generally is not more than 1MPa through pressurization, and adapts with the material of mould therefor; Mould can be by aluminium, cast iron, steel or any suitable made that can bear relevant pressure and temperature.Can be in the mould inner surface release agent application, that can select silicone oil or any other for use can be adsorbed onto the commercially available releasing agent on the filter medium hardly, also can use processing release papers such as aluminium foil.
The present invention also provides following technical scheme: a kind of filter core that uses above-mentioned filter medium.
The present invention also provides following technical scheme: a kind of purifier comprises above-mentioned filter medium or filter core.
The present invention also provides a kind of water dispenser that comprises above-mentioned purifier.
With respect to prior art, the invention has the advantages that the technical scheme that is proposed can remove the diethylstilbestrol in the water, clearance reaches more than 95%; Thereby reach the purpose of improving water quality; And method is simple, and the raw material sources of preparation filter medium are extensive, and cost is low.
Technical scheme provided by the present invention is specially adapted to by the processing of the drinking-water of diethylstilbestrol pollution.
The specific embodiment
For further understanding the present invention, above-mentioned technical scheme is done further elaboration and explanation below in conjunction with embodiment.
Embodiment 1
The concrete steps of present embodiment may further comprise the steps:
(1) take by weighing ultra-high molecular weight polyethylene powder 200g (gram), said ultra-high molecular weight polyethylene is the M-III type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 3,500,000, and particle diameter is 74～89 microns;
(2) take by weighing medicinal active powdered carbon 100g, the particle diameter of said medical activated carbon is 74～89 microns;
(3) take by weighing sepiolite powder 40g, said sepiolite powder is handled through following method and obtained: the sepiolite powder with 74～89 microns cleans up with deionized water; Oven dry; Be immersed among 0.05 the HCl 6 hours, clean up with the alkali neutralization and with deionized water then, oven dry promptly gets;
(4) take by weighing modified attapulgite stone flour 100g, said modified attapulgite stone flour is handled through following method and is obtained:
With the attapulgite powder, use the hydrochloric acid solution of concentration as 5wt% (mass fraction), static immersion 48 hours is filtered extruding in flakes, 300 ℃ of following activation 40 minutes, is ground into 74～89 microns modified attapulgite stone flours with revolving drier;
(5) take by weighing food-grade carbonic hydroammonium 50g, purity reaches more than 99.99%;
(6) above-mentioned five kinds of powder are put into the mechanical agitator stirring mixed in 10 minutes;
(7) being packed into diameter is in the 50mm tubular die, in the hydraulic pressure pressed of 0.4MPa, 230 ℃ of sintering temperatures 150 minutes;
(8) naturally cool to 50 ℃ of demouldings then, promptly get the tubulose filter core of many minute apertures.
Embodiment 2
The concrete steps of present embodiment may further comprise the steps:
(1) take by weighing ultra-high molecular weight polyethylene powder 350g, said ultra-high molecular weight polyethylene is the M-III type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 3,500,000, and particle diameter is 74～89 microns;
(2) take by weighing medicinal active powdered carbon 50g, the particle diameter of said medical activated carbon is 74～89 microns;
(3) take by weighing sepiolite powder 100g, said sepiolite powder is handled through following method and obtained: the sepiolite powder with 74～89 microns cleans up with deionized water; Oven dry; Be immersed among 0.05 the HCl 6 hours, clean up with the alkali neutralization and with deionized water then, oven dry promptly gets;
(4) take by weighing modified attapulgite stone flour 50g, said modified attapulgite stone flour is handled through following method and is obtained:
With the attapulgite powder, use the hydrochloric acid solution of concentration as 5wt% (mass fraction), static immersion 72 hours is filtered extruding in flakes, 300 ℃ of following activation 50 minutes, is ground into 74～89 microns modified attapulgite stone flours with revolving drier;
(5) take by weighing Celogen Az 120g, purity reaches more than 99.99%;
(6) above-mentioned five kinds of powder are put into the mechanical agitator stirring mixed in 10 minutes;
(7) being packed into diameter is in the 50mm tubular die, in the hydraulic pressure pressed of 0.6MPa, 240 ℃ of sintering temperatures 120 minutes;
(8) naturally cool to 40 ℃ of demouldings then, promptly get the tubulose filter core of many minute apertures.
Embodiment 3
The concrete steps of present embodiment may further comprise the steps:
(1) take by weighing ultra-high molecular weight polyethylene powder 300g, said ultra-high molecular weight polyethylene is the M-III type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 3,500,000, and particle diameter is 74～89 microns;
(2) take by weighing medicinal active powdered carbon 90g, the particle diameter of said medical activated carbon is 74～89 microns;
(3) take by weighing sepiolite powder 70g, said sepiolite powder is handled through following method and obtained: the sepiolite powder with 74～89 microns cleans up with deionized water; Oven dry; Be immersed among 0.05 the HCl 6 hours, clean up with the alkali neutralization and with deionized water then, oven dry promptly gets;
(4) take by weighing modified attapulgite stone flour 70g, said modified attapulgite stone flour is handled through following method and is obtained:
With the attapulgite powder, use the hydrochloric acid solution of concentration as 5wt% (mass fraction), static immersion 72 hours is filtered extruding in flakes, 300 ℃ of following activation 50 minutes, is ground into 74～89 microns modified attapulgite stone flours with revolving drier;
(5) take by weighing food-grade carbonic hydroammonium 100g, purity reaches more than 99.99%;
(6) above-mentioned five kinds of powder are put into the mechanical agitator stirring mixed in 10 minutes;
(7) being packed into diameter is in the 50mm tubular die, in the hydraulic pressure pressed of 0.6MPa, 240 ℃ of sintering temperatures 120 minutes;
(8) naturally cool to 40 ℃ of demouldings then, promptly get the tubulose filter core of many minute apertures.
Embodiment 4
The concrete steps of present embodiment may further comprise the steps:
(1) take by weighing ultra-high molecular weight polyethylene powder 310g, said ultra-high molecular weight polyethylene is the M-III type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 3,500,000, and particle diameter is 74～89 microns;
(2) take by weighing medicinal active powdered carbon 80g, the particle diameter of said medical activated carbon is 74～89 microns;
(3) take by weighing sepiolite powder 80g, said sepiolite powder is handled through following method and obtained: the sepiolite powder with 74～89 microns cleans up with deionized water; Oven dry; Be immersed among 0.05 the HCl 6 hours, clean up with the alkali neutralization and with deionized water then, oven dry promptly gets;
(4) take by weighing modified attapulgite stone flour 60g, said modified attapulgite stone flour is handled through following method and is obtained:
With the attapulgite powder, use the hydrochloric acid solution of concentration as 5wt% (mass fraction), static immersion 72 hours is filtered extruding in flakes, 300 ℃ of following activation 50 minutes, is ground into 74～89 microns modified attapulgite stone flours with revolving drier;
(5) take by weighing food-grade carbonic hydroammonium 110g, purity reaches more than 99.99%;
(6) above-mentioned five kinds of powder are put into the mechanical agitator stirring mixed in 10 minutes;
(7) being packed into diameter is in the 50mm tubular die, in the hydraulic pressure pressed of 0.6MPa, 240 ℃ of sintering temperatures 120 minutes;
(8) naturally cool to 40 ℃ of demouldings then, promptly get the tubulose filter core of many minute apertures.
The table of comparisons raw materials used among the embodiment 1～4 is as shown in table 1.
Table 1
Embodiment 5
Get the tubulose filter core 1,2,3,4 of the many minute apertures of embodiment 1～4 gained; The liner two-layer nonwoven, the outsourcing two-layer nonwoven wraps polypropylene porous net at skin again; Bonding the going up in filter core two ends connects end cap, is positioned in stainless steel or the plastic casing, is used for Drinking Water; Through detecting, this filter core is good, as shown in table 2 to the removal effect of the diethylstilbestrol in the drinking water.The needs that are fit to very much the home terminal drinking water treatment.
Table 2 uses filter core to handle the water unit of front and back: mg/L (mg/litre)
Can find out that from table 3 diethylstilbestrol that utilizes filter core of the present invention to remove in the water has been obtained good effect.
In addition the water before and after handling has also been carried out the test of sundry item, test result is as shown in table 3.
Table 3 uses filter core to handle the water of front and back
Can find out from table 3, utilize filter core of the present invention when removing diethylstilbestrol, muddy thing and bacterial micro-organism also had a good effect of removing.
With respect to prior art, the invention has the advantages that the technical scheme that is proposed can remove the diethylstilbestrol in the water, clearance reaches more than 95%; Thereby reach the purpose of improving water quality; And method is simple, and the raw material sources of preparation filter medium are extensive, and cost is low.
In addition, in removing water, in the diethylstilbestrol, also can remove muddy thing and bacterial micro-organism in the water, especially also higher to the clearance of bacterial micro-organism.
Technical scheme provided by the present invention is specially adapted to by the processing of the drinking-water of diethylstilbestrol pollution.
More than carried out detailed introduction to filter medium provided by the present invention and preparation method thereof and by the filter core that this filter medium is processed.Used specific embodiment in this specification principle of the present invention and embodiment have been set forth, for one of ordinary skill in the art, according to the thought of the present invention part that on the specific embodiment and range of application, possibly in implementation process, can change.Therefore, the content of this specification record should not be construed as limitation of the present invention.
Claims (1)
1. filter medium application aspect the diethylstilbestrol in removing drinking water, said preparation method of filter medium comprises the steps:
(1) take by weighing ultra-high molecular weight polyethylene powder 200g (gram), said ultra-high molecular weight polyethylene is the M-III type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 3,500,000, and particle diameter is 74～89 microns;
(2) take by weighing medicinal active powdered carbon 100g, the particle diameter of said medical activated carbon is 74～89 microns;
(3) take by weighing sepiolite powder 40g, said sepiolite powder is handled through following method and obtained: the sepiolite powder with 74～89 microns cleans up with deionized water; Oven dry; Be immersed among 0.05 the HCl 6 hours, clean up with the alkali neutralization and with deionized water then, oven dry promptly gets;
(4) take by weighing modified attapulgite stone flour 100g, said modified attapulgite stone flour is handled through following method and is obtained:
With the attapulgite powder, use the hydrochloric acid solution of concentration as 5wt% (mass fraction), leave standstill and soaked 48 hours, filter extruding in flakes, 300 ℃ of following activation 40 minutes, be ground into 74～89 microns modified attapulgite stone flours with revolving drier;
(5) take by weighing food-grade carbonic hydroammonium 50g, purity reaches more than 99.99%;
(6) above-mentioned ultra-high molecular weight polyethylene powder, medicinal active powdered carbon, sepiolite powder, modified attapulgite stone flour, food-grade carbonic hydroammonium are put into the mechanical agitator stirring mixed in 10 minutes;
(7) being packed into diameter is in the 50mm tubular die, in the hydraulic pressure pressed of 0.4MPa, 230 ℃ of sintering temperatures 150 minutes;
(8) naturally cool to 50 ℃ of demouldings then, promptly get the tubulose filter core of many minute apertures.
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| CN102167418B (en) * | 2011-03-22 | 2012-11-07 | 重庆大学 | Method for removing ethinyl estradiol in domestic sewage by adsorption of waste wool fibers |
| CN103463870B (en) * | 2013-06-20 | 2015-08-19 | 天长市天乐电器厂 | Filter core of a kind of filtering noxious gas and preparation method thereof |
| CN103463868B (en) * | 2013-06-20 | 2015-08-19 | 天长市天乐电器厂 | A kind of active carbon air filter element and preparation method thereof |
| CN107159160A (en) * | 2017-05-31 | 2017-09-15 | 广州市拓沃卫浴科技有限公司 | Incretion interferent bis-phenol E filter medium, filter core and preparation method in a kind of removal drinking water |
| CN107308917A (en) * | 2017-05-31 | 2017-11-03 | 广州市拓沃卫浴科技有限公司 | Filter medium, filter core and the preparation method of asbestos in a kind of removal drinking water |
| CN108745281A (en) * | 2018-05-21 | 2018-11-06 | 泉州万利得节能科技有限公司 | A kind of nano-mineral activated carbon and preparation method thereof |
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| CN101402475A (en) * | 2008-09-28 | 2009-04-08 | 中国海洋大学 | Process for producing magnesium oxide/absorbent charcoal composite material and uses thereof |
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