CN108675407A - Magnetic more metal composite organic polymer phosphate radical removers and preparation method thereof - Google Patents
Magnetic more metal composite organic polymer phosphate radical removers and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Removal Of Specific Substances (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to the reparation of natural water Pollution Chemistry and water treatment agent preparation field, a kind of more metal composite organic polymer phosphate radical removers of magnetism and preparation method thereof are particularly disclosed.Magnetic more metal composite organic polymer phosphate radical removers, it is characterised in that：To carry out copolymerization as raw material using acrylamide and cationic monomer, cationic polyacrylamide high-molecular compound is prepared, then combined with ferroferric oxide magnetic fluid, polyvalent metal ion, the product obtained from.Present invention process is simple, reaction condition is mild, collective effect is acted on using polyvalent metal ion complexing, electrostatic interaction and Magneto separate, it effectively improves the separation Yu recycling of phosphate radical in natural water, recycle effect, phosphorus loop structure in the ecosystem of Optimizing City, and remover does not remain in water body, will not cause secondary pollution to water body.
Description
（One）Technical field
The present invention relates to the reparation of natural water Pollution Chemistry and water treatment agent preparation field, more particularly to a kind of more metals of magnetism are multiple
Close organic polymer phosphate radical remover and preparation method thereof.
（Two）Background technology
Eutrophication is one of Environmental Pollution problem of the natural waters such as lake, reservoir, bay.Body eutrophication can be led
Algae and other hydroplankton abnormality proliferations are caused, makes the decline of Dissolved Oxygen in Water amount, water quality deterioration, generates peculiar smell, is serious
The ornamental value for influencing water body, in water body biobalance state be broken, the stability of biology and diversity degradation, it is abnormal to increase
It grows algae and secretes toxicant into water body, threaten the health of the mankind and other biological, serious prestige is constituted to water environment, Ecology
The side of body.It is generally believed that total phosphorus in water concentration is more than 0.02 mgL-1It is the critical concentration of body eutrophication, P elements conduct
Minimum limitation factor pair algal grown plays a key effect.Therefore, the method for removing phosphate radical in natural water, which becomes, administers water
Hot and difficult issue in body eutrophication research.
In recent years, China strictly controls eutrophication water point source and Non-point Source Pollutants discharge, but water quality eutrophy
Change situation is not clearly better so that endogenous pollution problem is increasingly prominent.Water body internal contamination is mainly derived from deposit, sinks
The existing forms of phosphorus mainly form bound phosphorus with elements such as aluminium, iron, calcium in product object, are the important sources of endogenous polyamine.Ring
When border condition changes, the phosphorus of these forms can be converted into resolvability phosphorus and enter Interstitial Water, and then diffuse to overlying water.
In natural water, sanitary sewage and industrial wastewater, the existing forms of phosphorus mainly have orthophosphates, polymeric phosphate
（Pyrophosphate, metaphosphate and polyphosphate）With the forms such as the phosphate of combination；The existing forms of phosphorus are further divided into
Suspended state phosphorus and dissolved phosphorus.There is transformation between the different existing forms of phosphorus, Quadrafos acid condition or
Orthophosphates can be hydrolyzed under the action of enzyme.Orthophosphates ionizes in water body, can generate H3PO4、H2PO4 -、HPO4 2-With
PO4 3-, for pH value in 6-9 water bodys, the form that is primarily present is H2PO4 -And HPO4 2-.Orthophosphates can be used as nutriment by algae
It directly absorbs, therefore, in the research for removing natural water phosphate radical, mainly removes orthophosphates.
Since the circulating system structure optimization and improved efficiency, existing control measure of ignoring phosphorus are limited to the dirt of part and end
Object emission control is contaminated, it is of high cost, ecological efficiency is low, fail effectively to contain the main body eutrophication trend in China.
Currently, it is more to the removal theory and methods of phosphorus in sanitary sewage and industrial wastewater, it is heavy to can be summarized as chemistry
Shallow lake and microbial process.Chemical precipitation method mainly adds the water treatment agents such as lime, aluminium salt, molysite in sewage disposal process,
Phosphate not soluble in water is generated with the phosphate radical effect in sewage, the phosphoric acid in sewage is removed in a manner of sediment separate out
Root.The methods of crystallization, electrolysis, reverse osmosis, ion exchange, absorption are also used for the removal of phosphor in sewage acid group.
It is traditional biological dephosphorization and denitrification dephosphorization to be studied in microbial process dephosphorization more.Traditional biological dephosphorization profit
Phosphate is discharged under anaerobic with polyP bacteria (phosphate accumulating organisms, PAOs), aerobic
Under the conditions of superfluous absorb phosphatic characteristic and realize phosphate in separation sewage；Denitrification dephosphorization is thin by denitrification dephosphorization
Bacterium (denitrifying phosphorous removing bacteria, DPB) is served as under anaerobic environment using nitrate nitrogen
Electron acceptor carries out poly- phosphorus and realizes the phosphate detached in sewage.The rich phosphorous sludge of generation discharges final removal by excess sludge
Phosphorus in sewage.Widely used microorganism dephosphorization sewage treatment process is mainly anoxic-aerobic process (AO), anaerobic-anoxic-
Aerobic process (A2O), sequence intermittent activated sludge process (SBR), oxidation ditch process, membrane Bio-reactor Technology (MBR) with
And the improvement of these techniques derives technique.
Phytoremediation technology is absorption, volatilization, conversion and the degradation using plant and its rhizosphere circle microorganism system
Remove the phosphate radical in water body.Artificial swamp is the work of physical-chemical process and the phosphate radical in bioanalysis synergistic effect removal water body
Skill removes the phosphate radical in water body by matrix, water plant and the collective effect of microorganism.Artificial swamp is to retain phosphorus
Achieve the purpose that detach with water body in systems, traditional microbiological method is that the phosphorus discharge system that will be separated realizes dephosphorization.
Control natural water deposit Endogenous Phosphorus pollution measure mainly have in-situ passivation, covering in situ and bed mud dredging,
The hydraulic engineerings such as artificial aeration, mechanical salvaging, the training of channel, regular moisturizing.
Chemical precipitation method is simple for process, easy to operate, reliable for operation, and operating cost is low, and P elements separative efficiency is high, uses extensively
In high content of phosphorus Industrial Wastewater Treatment.In order to form good phosphate radical deposition condition, precipitating reagent dosage is larger, cause metal from
It is remained in the waste water of son after treatment also more.Higher metal ion residual may generate chronic murder by poisoning to the ecosystem and make
With.
In order to overcome deficiency existing for chemical precipitation method dephosphorization in technique for treating industrial wastewater, people constantly to develop new sink
Shallow lake agent and its technique for applying.Dephosphorization precipitating reagent is by small molecule to macromolecule, from single type to compound.It reports more main
Have, SO is introduced in chlorine root and the compound molysite or aluminium polychloride (PAC) of sulfate radical4 2-, chlorine is introduced in bodied ferric sulfate (PFS)
Root etc.；Cationic compound precipitants have compound, Mg-Al composite of iron aluminium etc..In recent years, polyvalent metal ion and the compound system of macromolecule
Standby multifunctional flocculants are of great interest.
It is not difficult to find out, either water body purification method and technique main purpose are removal sewage or water body for these sewage disposals
In phosphate radical, not P elements separation in sewage or water body with recycle, optimization phosphorus circulating system structure, realize phosphorus
Element order cycle is as final purpose；Natural water is since water surface area is big, hydrology-water quality complicated condition, Phosphorus in Sediments member
Plain source-remittance space-time conversion, while numerous ecological environment functions are carried, be not suitable for using similar sanitary sewage or Industry Waste
P elements separation, recovery method and treatment process in water；Chemical precipitation method dephosphorization process is to realize to generate under gravity field action
Phosphorous insoluble matter detached with water body, reach water body dephosphorized purpose, by the dephosphorization process of gravitational settling theory be not suitable for from
Right water body, the endogenous dirt of the pollutants such as phosphorus, metal ion in natural water can be become by being deposited on the phosphorous sediment of water bottom
Dye source.Therefore, phosphate radical and the recycling in exploitation removal natural water, recycle the New Phosphorus acid group that P elements are taken into account and remove
Agent has important practical significance.
（Three）Invention content
That in order to compensate for the shortcomings of the prior art, the present invention provides a kind of preparation processes is simple, reaction condition is mild, separating effect
Good more metal composite organic polymer phosphate radical removers of magnetism and preparation method thereof.
The present invention is achieved through the following technical solutions：
A kind of more metal composite organic polymer phosphate radical removers of magnetism, it is characterised in that：For with acrylamide and cation
Monomer is that raw material carries out copolymerization, is prepared cationic polyacrylamide high-molecular compound, then with ferroso-ferric oxide
Magnetic fluid, polyvalent metal ion combine, the product obtained from.
High-molecular compound is bonded by the present invention with ferroso-ferric oxide, polyvalent metal ion, forms magnetic more metal composites
Organic high molecular compound obtains magnetic more metal composite organic polymer phosphate radical removers, with phosphate radical in natural water
Effect generates magnetic phosphorous insoluble matter, the phosphate radical in efficiently separating natural water outside plus under magnetic fields, and realize recycling,
The P elements in natural water are recycled, the conventional chemical precipitation method is solved and is not suitable for removing the phosphate radical in natural water,
The phosphorous sediment for being deposited on water bottom can asking as endogenous pollution sources of pollutants such as phosphorus, metal ions in natural water
Topic.
The present invention the technical solution that more has be：
The cationic monomer is dimethyl diallyl ammonium chloride, dimethylaminoethyl methacrylate, acrylic acid diformazan ammonia
It is one or more in base ethyl ester, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, acrylyl oxy-ethyl-trimethyl salmiac.
The polyvalent metal ion is iron, aluminium, magnesium, copper, zinc, lead, calcium, tin, lanthanum, one kind in cerium soluble-salt or more
Kind.
The preparation method of the above-mentioned more metal composite organic polymer phosphate radical removers of magnetism, includes the following steps：
（1）Deionized water is added in the reactor, adds acrylamide and cationic monomer, is warming up to 50-100 DEG C, is added
The initiator for accounting for acrylamide and cationic monomer gross mass 0.1-2.0%, is stirred to react 30-180min, obtains cation poly- third
Acrylamide aqueous solution；
（2）Cationic polyacrylamide aqueous solution is warming up to 50-100 DEG C, be added ferroferric oxide magnetic fluid, polyvalent metal from
Son is stirred to react 60-180min, obtains product.
Its preferred technical solution is：
Step（1）In, the mass ratio of acrylamide and cationic monomer is 1：0.5-1.2.
Initiator is sodium peroxydisulfate, potassium peroxydisulfate, ammonium persulfate, sodium thiosulfate-potassium peroxydisulfate initiation system, thio sulphur
Sour sodium-ammonium persulfate causes system or sodium thiosulfate-hydrogen peroxide causes system.
It is slowly added into copolymerization system in 10-30min after initiator water dissolution.
Step（2）In, the additive amount of ferroferric oxide magnetic fluid is the 10-30% of acrylamide quality, polyvalent metal ion
Additive amount be acrylamide quality 10-30%.
The present invention uses cation polypropylene amine compounds and Fe3O4Magnetic fluid, polyvalent metal ion combined method prepare magnetic
The more metal composite organic polymer phosphate radical removers of property；Magnetic material, polyvalent metal ion are gone for macromolecule phosphate radical
Except the preparation of agent, makes phosphate radical remover that there is magnetism, and have very strong associativity with the phosphate radical in water body, pass through Magneto separate
Mode strengthens phosphate radical separating effect in natural water, realizes the separation with recycling of phosphate radical in natural water, recycles, excellent
Change phosphorus loop structure in urban ecological system.
Present invention process is simple, and reaction condition is mild, utilizes polyvalent metal ion complexing, electrostatic interaction and Magneto separate
Collective effect is acted on, the separation Yu recycling of phosphate radical in natural water is effectively improved, recycles effect, Optimizing City ecosystem
Phosphorus loop structure in system, and remover does not remain in water body, will not cause secondary pollution to water body.
（Four）Specific implementation mode
The present invention is described in further details below by specific embodiment.
Embodiment 1：
The preparation method of the more metal composite organic polymer phosphate radical removers of magnetism of the present embodiment, including：
（1）It is prepared by cationic polyacrylamide：Appropriate amount of deionized water is added in reactor, 3g acrylamides, stirring is added
Uniformly, 1.5g dimethyl diallyl ammonium chlorides are added, are stirred evenly, are warming up to 50-100 DEG C.Weigh reaction monomers total amount
Sodium persulfate aqueous solution is slowly added drop-wise to above-mentioned reaction by 0.1-2.0% sodium peroxydisulfates with appropriate water dissolution in 10-30 minutes
In system, then react 30-180 minutes；
（2）It is prepared by magnetic more metal composite organic polymers：Above-mentioned cationic polyacrylamide aqueous solution is warming up to 50-100
DEG C, the Fe of acrylamide quality 10% is added3O4The aluminum soluble salt of acrylamide quality 10% is added in magnetic fluid, stirs 60-180
Minute.Obtain magnetic more metal composite organic polymer phosphate radical removers.
Embodiment 2：
The preparation method of the more metal composite organic polymer phosphate radical removers of magnetism of the present embodiment, including：
（1）It is prepared by cationic polyacrylamide：Appropriate amount of deionized water is added in reactor, 3g acrylamides, stirring is added
Uniformly, 6g dimethylaminoethyl methacrylates are added, are stirred evenly, reaction monomers total amount 0.1-2.0% thiosulfuric acids are weighed
Sodium is warming up to 50-100 DEG C with being added in reaction system after appropriate water dissolution.Weigh the identical mistake of sodium thiosulfate mole
Hydrogen peroxide is slowly added drop-wise in above-mentioned reaction system by hydrogen oxide in 10-30 minutes, then is reacted 30-180 minutes；
（2）It is prepared by magnetic more metal composite organic polymers：Above-mentioned cationic polyacrylamide aqueous solution is warming up to 50-100
DEG C, the Fe of acrylamide quality 30% is added3O4The soluble magnesium salt of acrylamide quality 30% is added in magnetic fluid, stirs 60-180
Minute.Obtain magnetic more metal composite organic polymer phosphate radical removers.
Embodiment 3：
The preparation method of the more metal composite organic polymer phosphate radical removers of magnetism of the present embodiment, including：
（1）It is prepared by cationic polyacrylamide：Appropriate amount of deionized water is added in reactor, 3g acrylamides, stirring is added
Uniformly, 3g dimethylaminoethyl acrylates are added, are stirred evenly, reaction monomers total amount 0.1-2.0% sodium thiosulfate is weighed,
With being added in reaction system after appropriate water dissolution, it is warming up to 50-100 DEG C.Weigh the identical over cure of sodium thiosulfate mole
Sour ammonium, with appropriate water dissolution.Slowly ammonium persulfate aqueous solution is added drop-wise in above-mentioned reaction system in 10-30 minutes, then instead
It answers 30-180 minutes；
（2）It is prepared by magnetic more metal composite organic polymers：Above-mentioned cationic polyacrylamide aqueous solution is warming up to 50-100
DEG C, the Fe of acrylamide quality 15% is added3O4The soluble lanthanum salt of acrylamide quality 30% is added in magnetic fluid, stirs 60-180
Minute.Obtain magnetic more metal composite organic polymer phosphate radical removers.
Embodiment 4：
The preparation method of the more metal composite organic polymer phosphate radical removers of magnetism of the present embodiment, including：
（1）It is prepared by cationic polyacrylamide：Appropriate amount of deionized water is added in reactor, 3g acrylamides, stirring is added
Uniformly, 4.5g MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chlorides are added, are stirred evenly.Weigh reaction monomers total amount 0.1-2.0%
Sodium thiosulfate is warming up to 50-100 DEG C with being added in reaction system after appropriate water dissolution.Weigh sodium thiosulfate mole
Identical potassium peroxydisulfate, with appropriate water dissolution.Persulfate aqueous solution is slowly added drop-wise to above-mentioned reactant in 10-30 minutes
In system, then react 30-180 minutes；
（2）It is prepared by magnetic more metal composite organic polymers：Above-mentioned cationic polyacrylamide aqueous solution is warming up to 50-100
DEG C, the Fe of acrylamide quality 20% is added3O4The soluble cerium salt of acrylamide quality 10% is added in magnetic fluid, stirs 60-180
Minute.Obtain magnetic more metal composite organic polymer phosphate radical removers.
Embodiment 5：
The preparation method of the more metal composite organic polymer phosphate radical removers of magnetism of the present embodiment, including：
（1）It is prepared by cationic polyacrylamide：Appropriate amount of deionized water is added in reactor, 3g acrylamides, stirring is added
Uniformly, then it is separately added into 0.7g acrylyl oxy-ethyl-trimethyl salmiacs, 0.8g dimethyl diallyl ammonium chlorides, stirring is equal
It is even, it is warming up to 50-100 DEG C.Reaction monomers total amount 0.1-2.0% sodium peroxydisulfates are weighed, with appropriate water dissolution, in 10-30 minutes
Slowly sodium persulfate aqueous solution is added drop-wise in above-mentioned reaction system, then is reacted 30-180 minutes；
（2）It is prepared by magnetic more metal composite organic polymers：Above-mentioned cationic polyacrylamide aqueous solution is warming up to 50-100
DEG C, the Fe of acrylamide quality 25% is added3O4The soluble zinc salt of acrylamide quality 15% is added in magnetic fluid, stirs 60-180
Minute.Obtain magnetic more metal composite organic polymer phosphate radical removers.
Embodiment 6：
The preparation method of the more metal composite organic polymer phosphate radical removers of magnetism of the present embodiment, including：
（1）It is prepared by cationic polyacrylamide：Appropriate amount of deionized water is added in reactor, 3g acrylamides, stirring is added
Uniformly, then it is separately added into 3g dimethylaminoethyl methacrylates, 3g MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chlorides, stirring is equal
It is even.Reaction monomers total amount 0.1-2.0% sodium thiosulfate is weighed, with being added in reaction system after appropriate water dissolution, is warming up to
50-100℃.The identical hydrogen peroxide of sodium thiosulfate mole is weighed, is slowly added drop-wise to hydrogen peroxide in 10-30 minutes
In above-mentioned reaction system, then react 30-180 minutes；
（2）It is prepared by magnetic more metal composite organic polymers：Above-mentioned cationic polyacrylamide aqueous solution is warming up to 50-100
DEG C, the Fe of acrylamide quality 30% is added3O4The soluble pink salt of acrylamide quality 30% is added in magnetic fluid, stirs 60-180
Minute.Obtain magnetic more metal composite organic polymer phosphate radical removers.
Embodiment 7：
The preparation method of the more metal composite organic polymer phosphate radical removers of magnetism of the present embodiment, including：
（1）It is prepared by cationic polyacrylamide：Appropriate amount of deionized water is added in reactor, 3g acrylamides, stirring is added
Uniformly, 1g dimethyl diallyl ammonium chlorides, 1g dimethylaminoethyl methacrylates, 1g acrylic acid diformazan ammonia are separately added into then
Base ethyl ester, stirs evenly, and is warming up to 50-100 DEG C.Reaction monomers total amount 0.1-2.0% sodium peroxydisulfates are weighed, with appropriate water dissolution,
Slowly sodium persulfate aqueous solution is added drop-wise in above-mentioned reaction system in 10-30 minutes, then is reacted 30-180 minutes；
（2）It is prepared by magnetic more metal composite organic polymers：Above-mentioned cationic polyacrylamide aqueous solution is warming up to 50-100
DEG C, the Fe of acrylamide quality 10% is added3O4The aluminum soluble salt of acrylamide quality 10% is added in magnetic fluid, and acryloyl is added
The soluble magnesium salt of amine quality 10% stirs 60-180 minutes.Obtain magnetic more metal composite organic polymer phosphate radical removals
Agent.
Embodiment 8：
The preparation method of the more metal composite organic polymer phosphate radical removers of magnetism of the present embodiment, including：
（1）It is prepared by cationic polyacrylamide：Appropriate amount of deionized water is added in reactor, 3g acrylamides, stirring is added
Uniformly, 1g dimethyl diallyl ammonium chlorides, 1g dimethylaminoethyl methacrylates, 1g acrylic acid diformazan ammonia are separately added into then
Base ethyl ester, 1.5g MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chlorides weigh reaction monomers total amount 0.1-2.0% sodium thiosulfate, use
It is added in reaction system after appropriate water dissolution, is warming up to 50-100 DEG C.Weigh the identical persulfuric acid of sodium thiosulfate mole
Potassium, with appropriate water dissolution.Slowly persulfate aqueous solution is added drop-wise in above-mentioned reaction system in 10-30 minutes, then is reacted
30-180 minutes；
（2）It is prepared by magnetic more metal composite organic polymers：Above-mentioned cationic polyacrylamide aqueous solution is warming up to 50-100
DEG C, the Fe of acrylamide quality 25% is added3O4The aluminum soluble salt of acrylamide quality 10% is added in magnetic fluid, and acryloyl is added
The soluble magnesium salt of amine quality 10%, the soluble copper salt of acrylamide quality 10% is added, stirs 60-180 minutes.Obtain magnetic
The more metal composite organic polymer phosphate radical removers of property.
Embodiment 9：
Initiator is sodium peroxydisulfate, other are identical as example 3.
Embodiment 10：
Initiator is sodium thiosulfate and ammonium persulfate oxidation-reduction trigger system, other are identical as example 8.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations.
Heretofore described cationic monomer includes but not limited to that cationic monomer includes but not limited to two allyl of dimethyl
Ammonium chloride, dimethylaminoethyl methacrylate, dimethylaminoethyl acrylate, methylacryoyloxyethyl trimethyl ammonia chloride
Ammonium, acrylyl oxy-ethyl-trimethyl salmiac and/or its mixture are not taking off the cationic monomer using other types
Under the premise of present inventive concept, magnetic more metal composite organic polymer phosphate radical removers are prepared, should be regarded as belonging to this hair
Bright protection domain.
Heretofore described polyvalent metal ion includes but not limited to iron, aluminium, magnesium, copper, zinc, lead, calcium, tin, lanthanum, and cerium is solvable
Property salt and/or its mixture, for the polyvalent metal ion using other types, without departing from the inventive concept of the premise,
Magnetic more metal composite organic polymer phosphate radical removers are prepared, should be regarded as belonging to the scope of protection of the present invention.
Contain-NH in cationic polyacrylamide molecule2, the functional groups such as-COO-, be easy to and Fe3O4It is magnetic fluid, solvable
Property polyvalent metal ion combine, preparation condition is mild, easy to operate.
Contain-NH in magnetic more metal composite organic polymer molecules2, polyvalent metal ion, be easy to and phosphate anion
Magnetic phosphorous insoluble matter is formed, the phosphate radical in efficiently separating natural water outside plus under magnetic fields, and realize recycling, cycle profit
With the P elements in natural water.
Using the above scheme, magnetic material is prepared for phosphate radical removal in natural water with recycling medicament, utilizes magnetic
Field action is realized the separation with recycling of phosphate radical in natural water, is recycled, phosphorus loop structure in the ecosystem of Optimizing City.
Claims (8)
1. a kind of more metal composite organic polymer phosphate radical removers of magnetism, it is characterised in that：For with acrylamide and sun from
Sub- monomer is that raw material carries out copolymerization, cationic polyacrylamide high-molecular compound is prepared, then aoxidize three with four
Ferrofluid, polyvalent metal ion combine, the product obtained from.
2. the more metal composite organic polymer phosphate radical removers of magnetism according to claim 1, it is characterised in that：It is described
Cationic monomer is dimethyl diallyl ammonium chloride, dimethylaminoethyl methacrylate, dimethylaminoethyl acrylate, first
It is one or more in base acrylyl oxy-ethyl-trimethyl salmiac, acrylyl oxy-ethyl-trimethyl salmiac.
3. the more metal composite organic polymer phosphate radical removers of magnetism according to claim 1, it is characterised in that：It is described
Polyvalent metal ion is one or more in iron, aluminium, magnesium, copper, zinc, lead, calcium, tin, lanthanum, cerium soluble-salt.
4. the preparation method of the more metal composite organic polymer phosphate radical removers of magnetism according to claim 1, special
Sign is to include the following steps：（1）Deionized water is added in the reactor, adds acrylamide and cationic monomer, is warming up to
50-100 DEG C, the initiator for accounting for acrylamide and cationic monomer gross mass 0.1-2.0% is added, is stirred to react 30-180min,
Obtain cationic polyacrylamide aqueous solution；（2）Cationic polyacrylamide aqueous solution is warming up to 50-100 DEG C, four oxygen are added
Change three ferrofluids, polyvalent metal ion, be stirred to react 60-180min, obtains product.
5. the preparation method of the more metal composite organic polymer phosphate radical removers of magnetism according to claim 4, special
Sign is：Step（1）In, the mass ratio of acrylamide and cationic monomer is 1：0.5-1.2.
6. the preparation method of the more metal composite organic polymer phosphate radical removers of magnetism according to claim 4, special
Sign is：Step（1）In, initiator is sodium peroxydisulfate, potassium peroxydisulfate, ammonium persulfate, sodium thiosulfate-potassium peroxydisulfate primosome
System causes in system, sodium thiosulfate-ammonium persulfate or sodium thiosulfate-hydrogen peroxide causes system.
7. the preparation method of the more metal composite organic polymer phosphate radical removers of magnetism according to claim 4, special
Sign is：Step（1）In, it is slowly added into copolymerization system in 10-30min after initiator water dissolution.
8. the preparation method of the more metal composite organic polymer phosphate radical removers of magnetism according to claim 4, special
Sign is：Step（2）In, the additive amount of ferroferric oxide magnetic fluid is the 10-30% of acrylamide quality, polyvalent metal ion
Additive amount be acrylamide quality 10-30%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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