CN104667887B - A kind of modified resin for low concentration arsenic-containing water arsenic removal and preparation method thereof - Google Patents
A kind of modified resin for low concentration arsenic-containing water arsenic removal and preparation method thereof Download PDFInfo
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- CN104667887B CN104667887B CN201510042851.7A CN201510042851A CN104667887B CN 104667887 B CN104667887 B CN 104667887B CN 201510042851 A CN201510042851 A CN 201510042851A CN 104667887 B CN104667887 B CN 104667887B
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- 239000011347 resin Substances 0.000 title claims abstract description 106
- 229920005989 resin Polymers 0.000 title claims abstract description 106
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 67
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- FGIWMSAVEQNPPQ-UHFFFAOYSA-N arsenic;hydrate Chemical compound O.[As] FGIWMSAVEQNPPQ-UHFFFAOYSA-N 0.000 title claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000004411 aluminium Substances 0.000 claims description 28
- 238000001035 drying Methods 0.000 claims description 14
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 206010013786 Dry skin Diseases 0.000 claims description 12
- 159000000013 aluminium salts Chemical class 0.000 claims description 11
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 11
- 239000012901 Milli-Q water Substances 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 32
- 229910052742 iron Inorganic materials 0.000 abstract description 14
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 abstract description 12
- 238000001179 sorption measurement Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 6
- 230000002079 cooperative effect Effects 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 239000002384 drinking water standard Substances 0.000 abstract description 2
- 230000008929 regeneration Effects 0.000 abstract description 2
- 238000011069 regeneration method Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 20
- 239000002131 composite material Substances 0.000 description 9
- 238000001914 filtration Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000007062 hydrolysis Effects 0.000 description 7
- 238000006460 hydrolysis reaction Methods 0.000 description 7
- 239000003651 drinking water Substances 0.000 description 5
- 235000020188 drinking water Nutrition 0.000 description 5
- LDHBWEYLDHLIBQ-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide;hydrate Chemical compound O.[OH-].[O-2].[Fe+3] LDHBWEYLDHLIBQ-UHFFFAOYSA-M 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- XFBXDGLHUSUNMG-UHFFFAOYSA-N alumane;hydrate Chemical compound O.[AlH3] XFBXDGLHUSUNMG-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 240000000163 Cycas revoluta Species 0.000 description 3
- 235000008601 Cycas revoluta Nutrition 0.000 description 3
- 230000000640 hydroxylating effect Effects 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 208000008316 Arsenic Poisoning Diseases 0.000 description 1
- 229910017251 AsO4 Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000009297 electrocoagulation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a kind of modified resin for low concentration arsenic-containing water arsenic removal and preparation method thereof.The modified resin is that fully load is obtained in being further continued for impregnated in liquor ferri trichloridi after resin impregnated in aluminum trichloride solution into fully load.The present invention has loaded iron, the aluminum high to arsenic adsorption capacity simultaneously, and the two generates cooperative effect, substantially increase the arsenic removal ability of modified resin, arsenic removal efficiency is up to more than 99%, water after resin adsorption treatment modified by this invention contains arsenic concentration up to 0.001mg/L, less than the 0.01mg/L of national newest drinking water standard.This material is also applied to the treatment of other sewage containing low-concentration arsenic for the treatment of, and goes out water outlet arsenic less than 50ppb.The modified resin is in solid granular, easily separated, can be placed into filter, and flexibly, can be not only used for Static Adsorption can also make packed column Dynamic Adsorption, and adsorption capacity stabilization to type of service, and usage cycles are long, and easy regeneration is reused, efficiency high.
Description
Technical field
The invention belongs to arsenic-containing water processing technology field.More particularly, to a kind of for low concentration arsenic-containing water arsenic removal
Modified resin and preparation method thereof.
Background technology
Arsenic is widely present in nature rock, soil, as industrial development promotes a large amount of poisonous continuous release and transports of arsenic extremely
In water body, soil environment, so that some areas such as China Hunan, Yunnan, Inner Mongol water body arsenic content is much exceeded, there occurs ground
Side's property arsenic poisoning event.Due to build-up effect of the arsenic in human body, long-term Excess free enthalpy arsenic can to human liver, nerve, blood,
Skin causes the serious harms such as canceration.1993, the World Health Organization will drink Water jet cleaning safety limit and be reduced to 10 μ g/L.Mesh
The preceding newest implementation of China《Standards for drinking water quality》(GB5749-2006) water supply quality content containing arsenic is by old plant in
0.05mg/L be reduced to 0.01mg/L.
Existing dearsenicating method mainly has absorption method, the precipitation method, ion-exchange, counter-infiltration, electrocoagulation etc., its shortcoming
Time-consuming the low goods of operating cost high, complex process, efficiency.Coagulant sedimentation generally requires a large amount of coagulant of input etc. and very
It is difficult by the range of the near safe concentration of arsenic concentration, while also produce a large amount of sludge, its is mishandling may to cause secondary to environment
Pollution.Comparatively, although can reach drinking water standard using special membrane filter system, it is because of complicated multistep treatment
Technique and high operating cost significantly limit popularization and application.In view of the contrast of various method and technologies is weighed, absorption method is removed
The advantages of arsenic is because of easy to operate, reusable, efficient, low cost, strong flexibility is widely developed, with wide application
Prospect.The development and application of the sorbing material good for new function admirable, effect of removing arsenic is significant.
The content of the invention
The technical problem to be solved in the present invention be overcome the shortcomings of it is existing except arsenic adsorbent material, there is provided one kind be applied to it is low dense
The modified resin of the arsenic removal work of arsenic-containing water is spent, is realized to the efficient of the low concentration arsenic-containing water body such as drinking water, surface water, underground water
Treatment.
Another object of the present invention is to provide the preparation method and application of above-mentioned modified resin.
Above-mentioned purpose of the present invention is achieved through the following technical solutions：
It is that resin be impregnated in into alchlor the invention discloses a kind of modified resin for low concentration arsenic-containing water arsenic removal
After fully being loaded in solution, fully load is obtained in being further continued for impregnated in liquor ferri trichloridi.The load of alchlor makes subsequently
The resin surface that is supported on of iron is distributed more uniformly, and the two absorption to arsenic produces cooperative effect, and what is finally obtained is modified
Resin is basic more than 99% to the clearance of arsenic, especially goes for the arsenic removal work of low concentration arsenic-containing water, arsenic removal efficiency
It is very high.
Wherein it is preferred to, the resin is large hole cation exchanger resin.It is highly preferred that the resin is D113 resins.
The preparation method of the above-mentioned modified resin for low concentration arsenic-containing water arsenic removal, comprises the following steps：
S1. by resin in 40~95 DEG C of 1~24h of drying；
S2. the mass ratio of resin 5~20% is accounted for according to aluminium salt, by the dried resins of S1 add to Fresh 0.5~
1.5M（It is preferred that 0.5M）AlCl3·6H2In O solution, 0.5~2 h is stirred under vacuum, alchlor is fully adsorbed and be wrapped in tree
In fat surface and hole, and complete hydrolysis form nano-aluminum hydroxide；
S3. step S2 be stirred under vacuum after, 1h is stirred in atmosphere, make alchlor fully adsorb be wrapped in resin surface and
In hole, and complete hydrolysis form nano-aluminum hydroxide, and filtering is washed 2~5 times, in 40~95 DEG C of dryings, must carry aluminium resin；
S4. the mass ratio of resin 5~30% is accounted for according to molysite, under nitrogen protection, the load aluminium resin of S3 is added to fresh
Prepare 0.5~1.5M（It is preferred that 0.5M）FeCl3·6H2In O solution, 0.5~2 h is stirred；
S5. 0.5~2 h and then in air is stirred, resin surface aluminium hydrate nano is because of coordination and surface hydroxyl
The adsorbable fixed Fe of base effect3+, then Fe3+It is uniformly distributed aluminium resin surface is carried, and then hydrolysis, gradually deposition formation are received
Rice hydrated ferric oxide is fixed；Last milli-Q water, filters, 40~95 DEG C dryings colourless to filtrate, obtains modified resin（I.e.
It is loaded with the resin of iron aluminium composite material）.
Wherein it is preferred to, the mass ratio that aluminium salt described in step S2 accounts for resin is 10~15%；Molysite described in step S4 accounts for tree
The mass ratio of fat is 10~15%.
Preferably, step S2, S3, S4 or mixing speed described in S5 are 150~1000r/min.
The modified resin for being loaded with iron aluminium composite material prepared according to above-mentioned preparation method is also in protection of the invention
Within the scope of.
Application of the above-mentioned modified resin for being loaded with iron aluminium composite material in terms of the arsenic removal of low concentration arsenic-containing water, also in this hair
Within bright protection domain.
When the modified resin for being loaded with iron aluminium composite material provided by the present invention is applied to the arsenic removal of arsenic-containing water, suitable pH
Be worth is 5.5~7.5.The pH of the water environments such as general drinking water, underground water is 6~8, and arsenic is often with HAsO4 2-、AsO4 3-Form exist and
Concentration is relatively low, therefore for the arsenic treatment of general natural water, material of the present invention can direct plunge into wherein or cross packed column.
And the pH of arsenic-containing water need to be adjusted to 5.5~7.5 first for the low concentration arsenic-containing water that industry is produced and be advisable.
Modified resin of the invention has loaded iron, the aluminum high to arsenic adsorption capacity simultaneously, and the two generates collaboration
Effect, substantially increases the arsenic removal ability of modified resin, and gained modified resin stable performance can Reusability.
The invention has the advantages that：
The invention discloses a kind of arsenic removal modified resin and preparation method thereof, its drip irrigation device is：（1）It is modified macroporous
Resin is fully loaded in impregnated in aluminum trichloride solution；（2）Continued to impregnated in and fully load in liquor ferri trichloridi.Trichlorine
Changing the load of aluminium makes the resin surface that is supported on of follow-up iron be distributed more uniformly, and the two absorption to arsenic produces collaboration effect
Should, the clearance to arsenic in low concentration arsenic-containing water is up to more than 99%, and the removal effect to arsenic in low concentration arsenic-containing water shows very much
Write.Water after resin adsorption modified by this invention can be reduced to 0.001mg/L containing arsenic concentration, less than 0.01mg/L, be especially suitable for
In Removal of Arsenic in Drinking Water, going out by water outlet arsenic up to standard for drinking after being processed.
Likewise, the modified resin for being loaded with iron aluminium composite material of the invention is also suitable for being produced in other industry for the treatment of or life
The treatment of the raw sewage containing low-concentration arsenic, and go out water outlet arsenic less than 50ppb, effect of removing arsenic is good, applied widely.
In addition, the present invention can be not only used for Static Adsorption when the treatment of arsenic sewage is contained for drinking water and other low concentrations
Also packed column Dynamic Adsorption can be made, modified resin is in solid granular, easily separated, can be placed into filter, uses shape
Formula is flexible.
The adsorption capacity stabilization of modified resin of the invention, usage cycles are long, easily regeneration reuse, efficiency high.
Specific embodiment
The present invention is further illustrated below in conjunction with specific embodiment, but embodiment does not do any type of to the present invention
Limit.Unless stated otherwise, the reagent for using of the invention, method and apparatus are the art conventional reagent, method and apparatus.
Unless stated otherwise, following examples agents useful for same and material are purchased in market.
The preparation of the modified resin of embodiment 1
1st, preparation method is comprised the following steps：
S1. resin is dried into 10h in 60 DEG C；
S2. the mass ratio of resin 13% is accounted for according to aluminium salt, the dried resins of S1 is added to the 0.5M's of Fresh
AlCl3·6H2In O solution, the 1h of vacuum 600r/min stirrings at normal temperatures；
S3. after step S2 is stirred under vacuum, 600r/min stirrings 1h, makes alchlor fully adsorb and is wrapped in tree in atmosphere
In fat surface and hole, and complete hydrolysis form nano-aluminum hydroxide, and filtering is washed 3 times, in 60 DEG C of dryings, must carry aluminium resin；
S4. the mass ratio of resin 13% is accounted for according to molysite, under nitrogen protection, the load aluminium resin of S3 is added to fresh and is matched somebody with somebody
The FeCl of the 0.5M of system3·6H2In O solution, the 2h of 600r/min stirrings at normal temperatures；
S5. and then in air 600r/min stirs 6h, and resin surface aluminium hydrate nano is because of coordination and surface
The adsorbable fixed Fe of hydroxylating effect3+, then Fe3+It is uniformly distributed aluminium resin surface is carried, and then hydrolyzes, gradually deposits formation
Nano hydrated ferric oxide is fixed.Milli-Q water, filtering, 60 DEG C dryings colourless to filtrate, obtain modified resin, that is, carry iron aluminium
The modified resin of composite.
The preparation of the modified resin of embodiment 2
1st, preparation method is comprised the following steps：
S1. resin is dried into 10h in 60 DEG C；
S2. the mass ratio of resin 15% is accounted for according to aluminium salt, the dried resins of S1 is added to the 0.5M's of Fresh
AlCl3·6H2In O solution, the 1h of vacuum 600r/min stirrings at normal temperatures；
S3. after step S2 is stirred under vacuum, 600r/min stirrings 1h, makes alchlor fully adsorb and is wrapped in tree in atmosphere
In fat surface and hole, and complete hydrolysis form nano-aluminum hydroxide, and filtering is washed 3 times, in 60 DEG C of dryings, must carry aluminium resin；
S4. the mass ratio of resin 10% is accounted for according to molysite, under nitrogen protection, the load aluminium resin of S3 is added to fresh and is matched somebody with somebody
The FeCl of the 0.5M of system3·6H2In O solution, the 2h of 600r/min stirrings at normal temperatures；
S5. and then in air 600r/min stirs 6h, and resin surface aluminium hydrate nano is because of coordination and surface
The adsorbable fixed Fe of hydroxylating effect3+, then Fe3+It is uniformly distributed aluminium resin surface is carried, and then hydrolyzes, gradually deposits formation
Nano hydrated ferric oxide is fixed.Milli-Q water, filtering, 60 DEG C dryings colourless to filtrate, obtain modified resin, that is, carry iron aluminium
The modified resin of composite.
The preparation of the modified resin of embodiment 3
1st, preparation method is comprised the following steps：
S1. resin is dried into 10h in 60 DEG C；
S2. the mass ratio of resin 10% is accounted for according to aluminium salt, the dried resins of S1 is added to the 0.5M's of Fresh
AlCl3·6H2In O solution, the 1h of vacuum 600r/min stirrings at normal temperatures；
S3. after step S2 is stirred under vacuum, 600r/min stirrings 1h, makes alchlor fully adsorb and is wrapped in tree in atmosphere
In fat surface and hole, and complete hydrolysis form nano-aluminum hydroxide, and filtering is washed 3 times, in 60 DEG C of dryings, must carry aluminium resin；
S4. the mass ratio of resin 15% is accounted for according to molysite, under nitrogen protection, the load aluminium resin of S3 is added to fresh and is matched somebody with somebody
The FeCl of the 0.5M of system3·6H2In O solution, the 2h of 600r/min stirrings at normal temperatures；
S5. and then in air 600r/min stirs 6h, and resin surface aluminium hydrate nano is because of coordination and surface
The adsorbable fixed Fe of hydroxylating effect3+, then Fe3+It is uniformly distributed aluminium resin surface is carried, and then hydrolyzes, gradually deposits formation
Nano hydrated ferric oxide is fixed.Milli-Q water, filtering, 60 DEG C dryings colourless to filtrate, obtain modified resin, that is, carry iron aluminium
The modified resin of composite.
The comparative example of embodiment 4
1st, load aluminium resin is prepared in accordance with the following methods：
S1. resin is dried into 10h in 60 DEG C；
S2. the mass ratio of resin 13% is accounted for according to aluminium salt, the dried resins of S1 is added to the 0.5M's of Fresh
AlCl3·6H2In O solution, the 1h of vacuum 600r/min stirrings at normal temperatures；
S3. after step S2 is stirred under vacuum, 600r/min stirrings 1h, makes alchlor fully adsorb and is wrapped in tree in atmosphere
In fat surface and hole, and complete hydrolysis form nano-aluminum hydroxide, and filtering is washed 3 times, in 60 DEG C of dryings, must carry aluminium resin.
2nd, load sago cycas fat is prepared in accordance with the following methods：
S1. resin is dried into 10h in 60 DEG C；
S4. the mass ratio of resin 13% is accounted for according to molysite, under nitrogen protection, resin is added to the 0.5M of Fresh
FeCl3·6H2In O solution, the 2h of 600r/min stirrings at normal temperatures；
S5. and then in air 600r/min stirs 6h, Fe3+It is uniformly distributed in resin surface, and then hydrolyzes, gradually sinks
Product forms nano hydrated ferric oxide and is fixed.Milli-Q water, filtering, 60 DEG C dryings colourless to filtrate, obtain carrying sago cycas fat.
3rd, aluminium salt and molysite mixed liquor
Preparation method is comprised the following steps：
S1. by the AlCl of the 0.5M of Fresh3·6H2O solution, the 1h of vacuum 600r/min stirrings at normal temperatures；
S2. after step S1 is stirred under vacuum, 600r/min stirs 1h in atmosphere；
S3. the solution of S2 is added to the FeCl of the 0.5M of Fresh3·6H2In O solution, 600r/min at normal temperatures
Stirring 2h；
S5. and then in air 600r/min stirs 6h, obtains aluminium salt and molysite mixed liquor.
4th, the removal efficiency of arsenic compares in low concentration arsenic-containing water
With initial arsenic concentration as 5mg/L, pH be 5.5~7.5 arsenic-containing water for object, with load iron prepared by embodiment 1~3
The modified resin of aluminium composite material and the load aluminium resin of above-mentioned preparation, load sago cycas fat are material, respectively to low concentration arsenic-containing water
Carry out arsenic removal effect.
Result is as shown in table 1.
Table 1
As shown in Table 1, load generates cooperative effect while iron, aluminium, substantially increases removing for modified resin
Arsenic ability；And aluminium salt is used cooperatively merely with molysite, not good arsenic removal rate, only the two is according to certain ratio
Example, by suitable process conditions, while loading to large hole cation exchanger resin（Such as D113 resins）On, could realize very
Excellent arsenic removal effect.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, the technology of the art
Equal replacement or conversion that personnel are done on the basis of the present invention, within protection scope of the present invention.
Claims (5)
1. the preparation method of a kind of modified resin for low concentration arsenic-containing water arsenic removal, it is characterised in that comprise the following steps：
S1. by resin in 40~95 DEG C of 1~24h of drying；
S2. the mass ratio of resin 5~20% is accounted for according to aluminium salt, the dried resins of S1 is added the AlCl of 0.5~1.5M3·6H2O
In solution, 0.5~2 h is stirred under vacuum；
S3. after step S2 is stirred under vacuum, 1h is stirred in atmosphere, filtered, washed 2~5 times, in 40~95 DEG C of dryings, obtain load aluminium
Resin；
S4. the mass ratio of resin 5~30% is accounted for according to molysite, under nitrogen protection, the load aluminium resin of S3 0.5~1.5M is added into
FeCl3·6H2In O solution, 0.5~2 h is stirred；
S5. 0.5~2 h and then in air is stirred, milli-Q water filters colourless to filtrate, and 40~95 DEG C of dryings are obtained
Modified resin；
The resin is D113 resins.
2. preparation method according to claim 1, it is characterised in that aluminium salt described in step S2 account for the mass ratio of resin for 10~
15%；The mass ratio that molysite described in step S4 accounts for resin is 10~15%.
3. preparation method according to claim 1, it is characterised in that step S2, S3, S4 or mixing speed described in S5 are 150
~1000r/min.
4. the modified resin for low concentration arsenic-containing water arsenic removal that any methods described of claims 1 to 3 is prepared.
5. application of the modified resin described in claim 4 in terms of the arsenic removal of low concentration arsenic-containing water.
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| CN105367699A (en) * | 2015-12-16 | 2016-03-02 | 宁波争光树脂有限公司 | Arsenic macroreticular adsorption resin and preparation method and application thereof |
| CN106986410B (en) * | 2017-05-23 | 2020-06-16 | 滨州学院 | Method for separating 2-naphthalenesulfonic acid in wastewater by using iron-loaded aluminum macroporous resin |
| CN107473332B (en) * | 2017-10-10 | 2020-09-04 | 中国地质大学（武汉） | Method for treating high-hardness high-arsenic underground water through ion exchange of Fe-based resin |
| CN109078608A (en) * | 2018-08-31 | 2018-12-25 | 中国环境科学研究院 | Arsenic-removing adsorption agent and preparation method and application based on iron modified activated aluminum oxide |
| CN111945018B (en) * | 2020-09-15 | 2022-11-11 | 昆明理工大学 | Method for treating arsenic in arsenic-containing solution by using anion resin and red mud |
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| CA2579031C (en) * | 2006-03-03 | 2011-03-29 | Rohm And Haas Company | Method for producing an arsenic-selective resin |
| US7407587B1 (en) * | 2006-03-24 | 2008-08-05 | Layne Christensen Company | Method and sorbent for selective removal of contaminants from fluids |
| CN101049972A (en) * | 2007-05-10 | 2007-10-10 | 桂林工学院 | Method for synthesizing composite hydroxide of iron and aluminum, and application |
| CN101249417B (en) * | 2008-03-28 | 2010-12-08 | 合肥工业大学 | Concave-convex bar stone clay-trihydrate alumina/iron nano composite adsorbing agent, preparation and applications |
| CN102580701B (en) * | 2012-01-18 | 2014-12-24 | 西安蓝晓科技新材料股份有限公司 | Preparation method of arsenic removal resin |
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