CN102976436A - Method for removing disinfection by-product chloroacetic acid in water by adsorption of covalent triazine porous polymer material - Google Patents
Method for removing disinfection by-product chloroacetic acid in water by adsorption of covalent triazine porous polymer material Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 55
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 54
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 49
- 239000006227 byproduct Substances 0.000 title claims abstract description 48
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000002861 polymer material Substances 0.000 title claims abstract description 28
- 229940106681 chloroacetic acid Drugs 0.000 title abstract description 4
- BHXFKXOIODIUJO-UHFFFAOYSA-N benzene-1,4-dicarbonitrile Chemical compound N#CC1=CC=C(C#N)C=C1 BHXFKXOIODIUJO-UHFFFAOYSA-N 0.000 claims abstract description 9
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims abstract description 8
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 7
- 150000002500 ions Chemical class 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 239000011592 zinc chloride Substances 0.000 claims abstract description 4
- 235000005074 zinc chloride Nutrition 0.000 claims abstract description 4
- 239000002594 sorbent Substances 0.000 claims description 20
- 239000002253 acid Substances 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000010828 elution Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000047 product Substances 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000460 chlorine Substances 0.000 abstract description 9
- 229910052801 chlorine Inorganic materials 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 9
- 235000020188 drinking water Nutrition 0.000 abstract description 8
- 239000003651 drinking water Substances 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- AOGYCOYQMAVAFD-UHFFFAOYSA-N chlorocarbonic acid Chemical compound OC(Cl)=O AOGYCOYQMAVAFD-UHFFFAOYSA-N 0.000 abstract 3
- 239000003463 adsorbent Substances 0.000 abstract 2
- JXTHNDFMNIQAHM-UHFFFAOYSA-N dichloroacetic acid Chemical compound OC(=O)C(Cl)Cl JXTHNDFMNIQAHM-UHFFFAOYSA-N 0.000 description 38
- 229960005215 dichloroacetic acid Drugs 0.000 description 19
- 239000011148 porous material Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 10
- 239000008399 tap water Substances 0.000 description 10
- 235000020679 tap water Nutrition 0.000 description 10
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000645 desinfectant Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- ZHXAZZQXWJJBHA-UHFFFAOYSA-N triphenylbismuthane Chemical compound C1=CC=CC=C1[Bi](C=1C=CC=CC=1)C1=CC=CC=C1 ZHXAZZQXWJJBHA-UHFFFAOYSA-N 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000003206 sterilizing agent Substances 0.000 description 3
- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical compound OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 2
- 230000000711 cancerogenic effect Effects 0.000 description 2
- 231100000315 carcinogenic Toxicity 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
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- 239000012528 membrane Substances 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical class ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 1
- 206010019273 Heart disease congenital Diseases 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010029350 Neurotoxicity Diseases 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 206010044221 Toxic encephalopathy Diseases 0.000 description 1
- 150000001243 acetic acids Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
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- 239000011261 inert gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000001570 ionothermal synthesis Methods 0.000 description 1
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- 238000000746 purification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- -1 small molecules carboxylic acid Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
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- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
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- 238000010792 warming Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a method for removing a disinfection by-product chloroacetic acid in water by the adsorption of a covalent triazine porous polymer material, wherein the covalent triazine porous polymer material is formed by synthesising zinc chloride anhydrous with terephthalonitrile via an ion thermal copolymerization method. The polluted water generating the disinfection by-product, namely, chlorocarboxylic acid, after chlorine disinfection, is treated by taking the material as an adsorbent and via the method disclosed by the invention, wherein in the conditions of 25 DEG C and a pH of 3-7, the triazine porous polymer material represents a very high adsorption removal rate for chlorocarboxylic acid. Additionally, the adsorbent in the method disclosed by the invention is simple in preparation, moderate in adsorption conditions, convenient to operate, and wide in application range. The method disclosed by the invention is used for removing the disinfection by-product chlorocarboxylic acid in water, especially in drinking water, as well as has good economic and environmental benefits.
Description
Technical field
The invention belongs to water-treatment technology field, relate to the removal method of disinfection byproduct (DBP) chloracetic acid in a kind of water, particularly relate to a kind of method of utilizing covalency triazine porous material absorption to remove disinfection byproduct (DBP) chloracetic acid in the water body.
Background technology
When disinfection by-product of drinking water (Disinfection byproducts, DBPs) referred to adopt sterilizing agent that tap water is carried out disinfection, owing to contain some natural organic matters (NOM) in the tap water, both reacted the carcinogenic compound of generation.The DBPs serious harm mankind's health, nowadays, DBPs has become one of study hotspot of drinking water safety.
Disinfection by-product of drinking water is of a great variety, the difference with the variation of sterilizing agent, disinfection technology and source hydrochemical compositions.When the chlorine disinfectant methods such as use chlorine, chloramines, dioxide peroxide, the disinfection byproduct (DBP) of generation mainly is volatile haloform (THMs) and nonvolatile halogenated acetic acids (HAAs).Wherein common HAAs such as dichloro acetic acid (DCAA), chloracetic acid (TCAA) etc. have been proved to be has " three cause " effect to rodent.Experimentation on animals finds, that HAAs has is carcinogenic, reproduction, development toxicity, and finds that the DCAA of high dosage has obvious neurotoxicity, when the dosage of DCAA and TCAA increases, can cause heart malformations.In the unconventional index of water quality and limit value of Drinking Water in China water quality standard (GB5749-2006), DBPs(is comprised THMs, DCAA, TCAA etc.) relevant regulations all arranged.
The method of control disinfection byproduct (DBP) roughly has three classes at present, is respectively to remove disinfection by-product matter; Traditional sterilizing agent etc. is replaced in disinfection byproduct (DBP) and selection that the removal sterilizing process has produced.Wherein, for the chlorinated carboxylic acid that has produced because of the chlorine disinfectant process in the tap water, the method that usually adopts deep layer to purify is such as ion exchange method, ultra-filtration and secondary filter method, electroosmose process and reverse osmosis method etc.Reverse osmosis method is fine for removing in the water disinfection byproduct (DBP) effect, but its cost is higher, and the utilization ratio of water is restricted, and it is applicable to the processing of individuality or local water quality.In addition membrane separation process, heated and boiled, adsorption filtration, or utilize organic volatility to adopt blow-off method that application is also arranged.But short, easy pollution in the work-ing life of film, difficult cleaning and cost are high, have limited the widespread use of membrane separation process; Heated and boiled is only suitable for the terminal user, is unsuitable for focusing on of water factory.
Absorption method is a kind of organic pollutants in water body removal method commonly used, has the advantages such as efficient height, energy consumption are low, non-secondary pollution.Gac is as sorbing material commonly used, has stronger hydrophobicity, not showing very high adsorption efficiency aspect the micromolecular carboxylic acid of absorption, have and report that gac is all not high to the loading capacity of chloracetic acid, therefore limit its application aspect drinking water deep purification.
The triazine porous material of covalency is the type material that grew up in recent years, has specific surface area height, even, the mechanical stability advantages of higher in duct, especially is suitable as sorbing material.But the chloracetic acid of making trace in the sorbent material Adsorption tap water with this material has not yet to see report.
Summary of the invention
The objective of the invention is for the disinfection byproduct (DBP) concentration in the tap water not high, it is poor that existing absorption method is removed efficient, the shortcoming such as the little and adsorption rate of loading capacity is low, use the characteristic of the porous aerotex of covalency, be applied in the disinfection byproduct (DBP) chloracetic acid removal in the water body, provide a kind of triazines porous material absorption of covalency to remove in the water body, particularly the method for Disinfection Byproducts in Drinking Water chloracetic acid.
Purpose of the present invention can reach by following measures:
The method of disinfection byproduct (DBP) chloracetic acid in a kind of covalency triazine porous polymer material Adsorption water is characterized in that: covalency triazine porous polymer material is contained in the water body of chloro acetic acid the Adsorption chloracetic acid as the sorbent material input.
Preferably, it is 3 ~ 7 that described method drops into the pH value with covalency triazine porous polymer material as sorbent material, adsorb in the water body that contains chloro acetic acid that preferred pH (can adopt mineral acid commonly used or alkali to regulate) in 4.0 ± 0.2 scopes, remove chloracetic acid, adsorption temp is 15~35 ℃, preferred 25 ℃, adsorption time is 1~3d.The starting point concentration of chloracetic acid is 10~100 mg/L in the water body, and covalency triazine porous material is the preferred 1:4000 of 1:3000~5000(with the mass ratio that contains the water body of disinfection byproduct (DBP) chloracetic acid).
The triazine porous polymer material that utilizes covalency of the present invention carries out the method for Adsorption to the disinfection byproduct (DBP) chloracetic acid in the tap water, and general steps is as follows:
1. by the synthetic covalency triazine porous polymer material of the hot copolymerization method of ion;
2. make sorbent material with synthetic covalency triazine porous polymer material, the disinfection byproduct (DBP) chloracetic acid in the water is carried out Adsorption.
The sorbent material covalency triazine porous polymer material that adopts among the present invention is to adopt the hot copolymerization method of ion synthetic by Zinc Chloride Anhydrous and terephthalonitrile, and concrete synthetic method is: with anhydrous ZnCl
2Vacuumize sealing after mixing with terephthalonitrile, be heated to 350 ~ 450 ℃ of lower 30 ~ 50h of maintenance.With product with the preferred 1M of 0.8 ~ 1.2M() salt acid elution 10 ~ 20h, washing is dry at last.Anhydrous ZnCl wherein
2With the mol ratio of terephthalonitrile be 1:10 ~ 1, preferred 1:1.ZnCl
2Be vacuum-sealed in the silica tube with the mixture of terephthalonitrile, heat riser is retort furnace, preferred 400 ℃ of temperature of reaction, preferred 40h of reaction times.Reaction product behind distilled water wash, washing by soaking in the hydrochloric acid of 1M, last water and tetrahydrofuran (THF) washing, drying.
The required raw material of synthetic materials of the present invention need be stored in the atmosphere of inert gases, and synthetic reaction process carries out all the time in a vacuum.The synthetic yield of the synthetic aerotex of the hot copolymerization method of ion is higher than 80%.
The concrete synthetic method of the covalency triazine porous polymer material among the present invention sees document for details: Kuhn, P.; Antonietti, M.; Thomas, A. Porous covalent triazine-based frameworks prepared by ionothermal synthesis. Angew. Chem. Int. Ed. 2008,47,3450-3453.
The present invention is take the triazine porous polymer material of covalency as sorbent material, and in water body, particularly the disinfection byproduct (DBP) chloracetic acid in the tap water carries out adsorption treatment, and absorption can be adopted dynamic successive processes or static intermittent process.The polluted-water that the present invention processes is through having produced the drinking water resource of micro-disinfection byproduct (DBP) after the chlorine disinfectant.Said disinfection byproduct (DBP) chloracetic acid mainly refers to the small molecules carboxylic acid that the by product chlorine that produces in the tap water chlorine disinfectant process replaces among the present invention, comprises Mono Chloro Acetic Acid (MCA), dichloro acetic acid (DCA) and trichoroacetic acid(TCA) (TCA) etc.
Experimental result shows that covalency triazine porous polymer material has obvious adsorption to chloracetic acid.When pH=4, covalency triazine porous material can reach 99.4mg/g to the maximal absorptive capacity of chloracetic acid.Compare as the method for disinfection byproduct (DBP) in the sorbent material Adsorption water body with gac with tradition, adsorptive capacity is significantly improved.For example in the test of absorption dichloro acetic acid, the maximal absorptive capacity to dichloro acetic acid is 43.8mg/g to gac in pH value 5 ~ 6 o'clock, and the maximal absorptive capacity of triazine porous polymer material can reach 64.9mg/g.This good adsorption effect may be because the triazine porous material of covalency can produce strong electrostatic attraction effect with the disinfection byproduct (DBP) chloracetic acid in water body, simultaneously aerotex material specific surface area high, be rich in the duct, more adsorption site can be provided.
The present invention compared with prior art has remarkable advantage.It is sorbent material that the present invention adopts covalency triazine porous polymer material, effectively in the Adsorption water, and the little pollution of by product chloracetic acid that particularly produces owing to chlorine disinfectant in the tap water, the highest adsorption efficiency can be up to 99%, adsorption conditions is gentle, and is easy to operate, applied widely.The present invention is used for removing the disinfection byproduct (DBP) chloracetic acid of tap water, has good environmental benefit.
Embodiment
In following examples of the present invention, the triazine porous polymer material of covalency is synthetic by the hot copolymerization process of following ion:
1. be the anhydrous ZnCl of 1:1 with mol ratio
2Fully grind evenly the silica tube of packing at glove box with terephthalonitrile.
2. the silica tube that reaction raw materials will be housed is evacuated to 10
-2Pa, tube sealing.
3. silica tube is put into retort furnace and is warming up to 400 ℃, and reaction 40h then is cooled to room temperature.Keep vacuum state in the whole reaction process in the silica tube.
4. with the reaction product distilled water wash, use again 1M salt acid soak, then successively with distilled water and tetrahydrofuran (THF) washing, 150 ℃ of vacuum-drying 12h.
The BET specific surface area of the triazine porous material that the hot copolymerization method of ion is synthetic is 765.99m
2/ g, pore volume 0.39 cm
3/ g, mean pore size 2.01nm.The XRD figure spectrum shows 2
θAt 7.2 °, 12.8 ° and 15.1 ° obvious characteristic peak is arranged, represent respectively 100,110 and 200 crystal faces in triazine crystal hexagon duct.And represent the characteristic peak of fragrant lamella 001 crystal face at 26.2 ° of Shi You.
Embodiment 1
Make sorbent material with the synthetic covalency aerotex material of aforesaid method, process the micro-polluted water that contains dichloro acetic acid: adsorption experiment carries out in being furnished with the vial of teflon gasket (volume is 40ml).The mass ratio of sorbent material and polluted water is 1:4000, pH=3 ~ 7, and adsorption temp is 25 ℃, and the starting point concentration of dichloro acetic acid is 3~50mg/L in the polluted water, and adsorption time is 1 ~ 3d.Filtering separation after the absorption, recording the dichloro acetic acid maximal absorptive capacity is 64.87mg/g, final clearance is 62.6% to 99%.
Comparative Examples 1
Take commercial gac as sorbent material, process the micro-polluted water that contains dichloro acetic acid.
The adsorption experiment condition is: sorbent material and polluted water mass ratio are 1:4000, pH=3 ~ 7, and adsorption temp is 25 ℃, and the starting point concentration of dichloro acetic acid is 3~50mg/L, and adsorption time is 1 ~ 3d, and recording the dichloro acetic acid maximal absorptive capacity is 43.79mg/g.As seen, under the same terms, the adsorptive capacity of dichloro acetic acid on the triazine material is significantly higher than commercial gac.
Embodiment 2
The preparation of sorbent material is the same.Take synthetic triazine porous material as sorbent material, processing contains chloroacetic micro-polluted water.
The adsorption experiment condition is: sorbent material and polluted water mass ratio are 1:4000, pH=3 ~ 7, and adsorption temp is 25 ℃, chloroacetic starting point concentration is 2~30mg/L, adsorption time is 1 ~ 3d, and recording the Mono Chloro Acetic Acid maximal absorptive capacity is 45.46mg/g, and clearance is 48.5% to 99%.
Embodiment 3
The preparation of sorbent material is the same.Take synthetic triazine porous material as sorbent material, process the micro-polluted water that contains trichoroacetic acid(TCA).
The adsorption experiment condition is: sorbent material and polluted water mass ratio are 1:4000, pH=3 ~ 7, and adsorption temp is 25 ℃, the starting point concentration of trichoroacetic acid(TCA) is 10~100mg/L, adsorption time is 1 ~ 3d, and the maximal absorptive capacity that records trichoroacetic acid(TCA) is mg/g, and clearance is 78.3% to 99%.
As seen synthetic triazine porous polymer material is when the absorption chlorinated carboxylic acid, and the chlorine replacement degree of chlorinated carboxylic acid is higher, and molecular dimension is larger, and adsorption effect is more obvious.
Embodiment 4
The method of disinfection byproduct (DBP) chloracetic acid is with embodiment 1 in the covalency triazine porous polymer material Adsorption water.The clearance of pH value of solution=4.19 time trichoroacetic acid(TCA) is 86.4%.PH value of solution=3.09 phosphatic the clearance of some trichoroacetic acid(TCA) is 59.9%.The clearance of pH value of solution=6.7 o'clock trichoroacetic acid(TCA) is 50.59%.
Embodiment 5
The method of disinfection byproduct (DBP) chloracetic acid is with embodiment 1 in the covalency triazine porous polymer material Adsorption water.The clearance of pH value of solution=3.98 time dichloro acetic acid is 58.8%.PH value of solution=3.11 phosphatic the clearance of some dichloro acetic acid is 40.3%.The clearance of pH value of solution=6.61 o'clock dichloro acetic acid is 23.5%.
Embodiment 6
The method of disinfection byproduct (DBP) chloracetic acid is with embodiment 1 in the covalency triazine porous polymer material Adsorption water.PH value of solution=4.03 time chloroacetic clearance is 41.5%.PH value of solution=3.01 phosphatic the clearance of some Mono Chloro Acetic Acid is 12.3%.PH value of solution=6.54 an o'clock chloroacetic clearance is 11.15%.
As seen synthetic aerotex material is when the absorption chlorinated carboxylic acid, and pH value of solution can all reach the Adsorption efficient of maximum 4.0 ± 0.2 scopes in the time.Being higher or lower than this pH scope all can cause adsorption efficiency to decrease.
Claims (9)
1. the method for disinfection byproduct (DBP) chloracetic acid in the covalency triazine porous polymer material Adsorption water, it is characterized in that: with covalency triazine porous polymer material as sorbent material, input contains in the water body of disinfection byproduct (DBP) chloracetic acid, chloracetic acid in the Adsorption water.
2. the method for disinfection byproduct (DBP) chloracetic acid in the Adsorption water according to claim 1, it is characterized in that: the starting point concentration of described disinfection byproduct (DBP) chloracetic acid is 10~100 mg/L.
3. the method for disinfection byproduct (DBP) chloracetic acid in the Adsorption water according to claim 1 is characterized in that: described covalency triazine porous polymer material is 1:3000~5000 with the mass ratio that contains the water body of disinfection byproduct (DBP) chloracetic acid.
4. the method for disinfection byproduct (DBP) chloracetic acid in the Adsorption water according to claim 1 is characterized in that: the described pH=3 that contains the water body of disinfection byproduct (DBP) chloracetic acid ~ 7.
5. the method for disinfection byproduct (DBP) chloracetic acid in the Adsorption water according to claim 4 is characterized in that: the pH of the described water body that contains the disinfection byproduct (DBP) chloracetic acid is in 4.0 ± 0.2 scopes.
6. the method for disinfection byproduct (DBP) chloracetic acid in the Adsorption water according to claim 1, it is characterized in that: described adsorption temp is 15~35 ℃, adsorption time is 1~3d.
7. the method for disinfection byproduct (DBP) chloracetic acid to 6 described arbitrary Adsorption water according to claim 1, it is characterized in that: described method may further comprise the steps:
1) by the synthetic covalency triazine porous polymer material of the hot copolymerization method of ion;
2) make sorbent material with synthetic covalency triazine porous polymer material, input contains in the water body of disinfection byproduct (DBP) chloracetic acid, and the chloracetic acid in the water is carried out Adsorption.
8. the method for disinfection byproduct (DBP) chloracetic acid in the Adsorption water according to claim 7, it is characterized in that: the preparation method of described covalency triazine porous polymer material is, with anhydrous ZnCl
2Vacuumize sealing after mixing with terephthalonitrile, be heated to 350 ~ 450 ℃ of lower 30 ~ 50h of maintenance, with the salt acid elution 10 ~ 20h of product with 0.8 ~ 1.2M, at last washing drying.
9. the method for disinfection byproduct (DBP) chloracetic acid in the Adsorption water according to claim 8, it is characterized in that: described Zinc Chloride Anhydrous and terephthalonitrile are Powdered, the mol ratio of Zinc Chloride Anhydrous and terephthalonitrile is 1:10 ~ 1.
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CN102633409A (en) * | 2012-04-26 | 2012-08-15 | 复旦大学 | Technological method for controlling disinfection by-product and pathogenic microorganism risk of drinking water |
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CN102502914A (en) * | 2011-11-08 | 2012-06-20 | 上海理工大学 | Method for removing chloroacetic acid in drinking water and absorption column used by same |
CN102633409A (en) * | 2012-04-26 | 2012-08-15 | 复旦大学 | Technological method for controlling disinfection by-product and pathogenic microorganism risk of drinking water |
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CN106902886A (en) * | 2017-02-24 | 2017-06-30 | 东华大学 | One kind goes chloroacetic method in water removal using the polymer supported Pd catalyst of covalent triazine |
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CN109517187A (en) * | 2018-12-12 | 2019-03-26 | 中国科学院兰州化学物理研究所 | A kind of preparation method of covalent triazine framework polymer under open system |
CN109517187B (en) * | 2018-12-12 | 2020-12-01 | 中国科学院兰州化学物理研究所 | Preparation method of covalent triazine framework polymer under open system |
CN114752068A (en) * | 2021-12-29 | 2022-07-15 | 西湖大学 | Preparation method of structure-controllable and adjustable covalent triazine-based material |
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