CN102718279A - Method for removing humic acid pollutants from water by magnetic polyaniline adsorbent - Google Patents
Method for removing humic acid pollutants from water by magnetic polyaniline adsorbent Download PDFInfo
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- CN102718279A CN102718279A CN2012101813594A CN201210181359A CN102718279A CN 102718279 A CN102718279 A CN 102718279A CN 2012101813594 A CN2012101813594 A CN 2012101813594A CN 201210181359 A CN201210181359 A CN 201210181359A CN 102718279 A CN102718279 A CN 102718279A
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Abstract
The invention discloses a method for removing humic acid pollutants from water by magnetic polyaniline adsorbent, which comprises the following steps: adding magnetic Fe3O4@SiO2-PANI as an adsorbent into to-be-purified water body, wherein the mass magnetic Fe3O4@SiO2-PANI is 0.0004-0.0008 times more than the mass of water, utilizing the magnetic Fe3O4@SiO2-PANI to adsorb the humic acid pollutants in the water for 1.0min to 24h under the situations that the temperature is 15-35 degrees centigrade; pH value is 2.0-10.0; and concentration of Ca2<+> is 0-20 mmol/L; in external magnetic field, separating the adsorbent from the adsorption system to obtain the purified water body without the humic acid pollutants. The method takes Fe3O4@SiO2-PANI as the adsorbent, which is significantly better than the adsorption performance of traditional adsorption materials (such as activated carbon). The method is simple to operate and has low cost.
Description
Technical field
The invention belongs to the water body purification processing technology field, relate to the method for removing humic acid in the water body, particularly a kind of magnetic polyaniline sorbent material Fe that utilizes
3O
4SiO
2-PANI removes the method for humic acid pollutants in the water.
Background technology
Humic acid is the macromole poly-ring aromatic compounds of multiple functional groups such as a kind of phenolic hydroxy group, carboxyl, alcoholic extract hydroxyl group, is a kind of important reductive organic matter in the water body, is a kind of organic colloid of complicacy.Soil ulmin in the natural water body derives from agron lower-molecular-weight component, waterplant and low etc. planktonic decomposition, accounts for 50%～90% of total organic matter in the water.Humic acid in the water body can cause various environment and health problem.Humic acid can produce offending color and smell in water body.Humic acid be prone to water in the chlorhexidine-containing disinfectant reaction produce the multiple toxic byproduct that has; Like trichloromethane, chloracetic acid, chlorinated phenol, chloro ketone, chloro aldehyde etc.; These by products become the little object that pollutes strict control in drinking water source to the effect that the people has " carcinogenic, teratogenesis, mutagenesis ".Humic acid ionization in water forms electronegative anionoid polymerization ionogen; The contained multiple functional group in surface can carry out complex reaction with the metals ion that coexists in the water or interact with other organic pollutant; Formation has the polymer substance of complex construction; Cause combined pollution, influence migration and the conversion in water of heavy metal and organic pollutant, increased the degree of difficulty of administering; Humic acid is similar sponge structure in the pH value near time neutral; This structure causes it to have very big interior external surface area; Top oxygen-containing functional group can capture inorganic and organic small molecules, so the normal part of the small organic molecule in the natural water body is attracted on the humic acid molecule; Humic acid can be adsorbed on the surface of colloid and suspended substance (clay, bacterium, virus, algae etc.), strengthens electronegativity, the stability and dispersed of these PM for particulate matters.Therefore how efficiently removing humic acid in the water becomes the focus of current environment research.
At present, be used for the acid-treated method of water humic and mainly contain biological process, flocculence, membrane filtration and chemical catalytic oxidation method etc.But because humic acid itself is difficult to by biological degradation; The film that potential safety hazard property, the membrane filtration that flocculation agent exists exists that the water-soluble humic acid of small molecular weight is difficult to remove, calcium, the isoionic influence of magnesium cause in the natural water body pollutes and the restriction of economic dispatch condition, and chemical catalytic oxidation running cost is high, device is complicated, treatment capacity is limited.The limitation of traditional treatment method highlights day by day, therefore, presses for a kind of safer, treatment process efficiently.Absorption method has good application prospects as the treatment process of less energy-consumption, high security, also more and more receives people's attention.
The advantage of absorption method is that the organism of reluctant metals ion of biological process and difficult degradation is had treatment effect preferably.Generally speaking, have bigger specific surface area and high pore volume on the sorbent material, help obtaining adsorption efficiency efficiently, it also can form various chemical bonds through various reactive groups in surface and adsorbate, reaches the organic purpose of enrichment selectively.Use maximum sorbent materials at present acticarbon, resin sorbent are arranged.And there is certain problem in acticarbon in application process; Soil ulmin can pass through electric charge mass transfer, hydrogen bond action, hydrophobic interaction formation macromole complex compound in solution; These macromole complex compounds possibly cause the duct of gac to stop up in the process that forms, thereby it is inner to stop more soil ulmin to get into gac; And macroporous adsorbent resin is not good to the hydrophilic small molecules organism adsorption effect in the soil ulmin, and the salt resistance of absorbent resin has much room for improvement and the production cost height.
In the soil ulmin water treatment procedure; An amino type sorbent material is widely used; Like chitosan, SEPIGEL 305 and aminoresin all is common amino type sorbing material; It relies on protonated amino of adsorbent surface and the dissociated carboxyl of humic acid and phenolic hydroxyl group to form mixture, thereby reaches the purpose of removing humic acid in the water.
In recent years, the synthetic of conducting polymer become one of Materials science important field of research, and the environmental stability of polyaniline is good; Chemical property is stable; The specific conductivity controllability is high, and synthesis technique is simply ripe, and the humic acid in the water body is had avidity preferably.Contain a large amount of amino and imino group in the polyaniline molecule; Can with heavy metal ion, organic pollutant generation complexing or the redox reaction in the water; And then the pollution substance in the removal water, but therefore saturated back of its absorption and the water body separation difficulty that desire purifies have hindered its application.
Superparamagnetic nanomaterial is the research focus of material in recent years, and it not only has the big specific surface area of nano material, stronger surface energy, and high surfactivity, and have strong magnetic, it is separated easily.Superparamagnetic nanomaterial by magnetic core be rich in active polymer shell and form.Magnetic core is made up of magnetic nano-particle usually, and the oxide compound of iron is (like Fe
3O
4) nanoparticle has high magnetic intensity and superparamagnetism, often is used as the nuclear of magnetic adsorbent.Silicon-dioxide is received to have than high chemical stability, can be used as polymer shell.
At present, magnetic Nano material is commonly used aspect water surrounding makes the sorbent treatment water pollutant, and like heavy metal, dyestuff etc., but the organism report is fewer in the planar water.The early-stage Study discovery of this seminar, polyaniline sorbent material have soil ulmin in the water adsorbs removal effect preferably, but absorption back sorbent material separation difficulty; Therefore; The synthesizing magnetic polyaniline material, and use it for the removal of soil ulmin, can effectively solve and separate difficult problem.Humic acid pollutants does not also appear in the newspapers in the magnetic polyaniline sorbent material removal water and utilize.
Summary of the invention
The object of the present invention is to provide a kind of method of utilizing magnetic polyaniline sorbent material to remove humic acid pollutants in the water, this method is utilized magnetic Fe
3O
4SiO
2-PANI removes the middle humic acid pollutants that anhydrates as sorbent material, and sorbent material separates with water body easily, and can behind wash-out, use repeatedly, and purification rate is high and simple to operate, with low cost.
For achieving the above object, the present invention has adopted following technical scheme:
The magnetic polyaniline sorbent material that in the water body that desire purifies, adds 0.0004～0.0008 times of water body quality; Utilize the humic acid pollutants in the magnetic polyaniline adsorbents adsorb water body; The magnetic polyaniline sorbent material in the water body is collected in the absorption back under the effect of externally-applied magnetic field, then magnetic polyaniline sorbent material is separated the purifying water body that has obtained removing humic acid pollutants with water body.
The starting point concentration of humic acid pollutants is 4.5～52mg/L in the water body that said desire purifies.
The water body that said desire purifies places encloses container; Externally-applied magnetic field is the magnet that is placed on the encloses container lower end; (guaranteeing that selected strong magnets surface area can cover the encloses container floorage), under externally-applied magnetic field magnetic guiding, the sorption of magnetic polyaniline sorbent material is in the encloses container bottom.
Said magnetic polyaniline sorbent material is Fe
3O
4SiO
2-PANI.
Said Fe
3O
4SiO
2The preparation method of-PANI is:
1) with FeCl
36H
2O and FeCl
24H
2O be dissolved in after according to 2: 1 mixed in molar ratio in the hydrochloric acid of 0.1～0.5mol/L mixed solution A; In 1.0～1.5mol/L NaOH aqueous solution, drip mixed solution A while stirring then; The volume ratio of the mixed solution A and the NaOH aqueous solution is 1: 9; Dropwise back aging reaction 1～2h under 80～85 ℃, nitrogen protection condition and get the solid synthetics, with the solid synthetics with deionized water wash after under 40～50 ℃ of conditions vacuum drying obtain Fe
3O
4
2) with absolute ethyl alcohol and deionized water according to 4: 1 volume ratio mix mixing solutions B, with Fe
3O
4Successively with joining after 0.05～0.1mol/L hydrochloric acid, the washed with de-ionized water among the mixing solutions B; Ultrasonic 25～the 30min of water-bath then; Adding massfraction after water-bath is ultrasonic at ambient temperature while stirring and be 28～30% ammoniacal liquor makes pH reach 11; Drip tetraethoxy (TEOS) then, every 0.5g Fe
3O
4Need to add the 1.0mL tetraethoxy, under 50～60 ℃ of conditions, stir 11～12h behind the adding tetraethoxy and get throw out, throw out filtration, cleaning, drying are obtained Fe
3O
4SiO
2
3) with Fe
3O
4SiO
2With aniline join successively in the deionized water mixture, Fe
3O
4SiO
2With the mass ratio of aniline be 3: 2; In mixture, add massfraction while stirring and be 35% hydrochloric acid and make pH reach 3, add hydrochloric acid afterreaction 1～2h, be cooled to 0～5 ℃ then; Add ammonium persulfate aqueous solution after the cooling while stirring; Aniline is 1: 2～2: 1 with the amount of substance ratio of ammonium persulphate, and polyreaction 6～7h under nitrogen protection obtains Fe with throw out filtration, cleaning, drying after the polyreaction completion then
3O
4SiO
2-PANI.
Said Fe
3O
4SiO
2-PANI takes off absorption under alkaline condition, realize regeneration.
Said Fe
3O
4SiO
2The renovation process of-PANI is: the Fe that will be adsorbed with humic acid pollutants
3O
4SiO
2-PANI places 0.01～0.05mol/L NaOH aqueous solution concussion 10～12h under 15～25 ℃ to take off absorption, the NaOH aqueous solution and Fe
3O
4SiO
2The mass ratio of-PANI is 1500～2000:1, and the Fe after the absorption is taken off in collection
3O
4SiO
2-PANI, the water cleaning many times is neutral to pH, can reuse.
The temperature of water body is that 15～35 ℃, pH are 2.0～10.0 in the said adsorption process, Ca in the water body
2+Ionic concentration is 0～20mmol/L, and adsorption time is 1.0min～24h.
Compared with prior art, the present invention has following beneficial technical effects:
The present invention is with magnetic polyaniline sorbent material Fe
3O
4SiO
2-PANI absorption is also removed humic acid pollutants in the water body; Magnetic polyaniline sorbent material shows the absorption property that obviously is superior to traditional sorbing material (like gac), has improved purification rate, simultaneously because the magnetic that magnetic polyaniline sorbent material itself is had; Its separation is quite easy; Therefore, the present invention has simple to operate, advantage with low cost.
Further, Fe
3O
4SiO
2The maximal absorptive capacity of-PANI is 36.53mg/g, and the maximal absorptive capacity of gac is 2.51mg/g, with Fe
3O
4SiO
2-PANI is as sorbent material, and adsorption rate is fast, and 2～3h just can reach adsorption equilibrium, and low pH and high Ca
2+Ionic concn is of value to the absorption of humic acid in the water.And collection Fe
3O
4SiO
2Behind-the PANI, utilize NaOH solution to carry out Fe
3O
4SiO
2The desorption of-PANI (taking off absorption), after desorption is accomplished, Fe
3O
4SiO
2-PANI can recycle; And the regeneration rate that takes off for the first time absorption is 76.8%, and the absorption regeneration experiment is adsorbed, taken off in circulation, regenerates after five times, and the regeneration rate that takes off absorption is 80.6%, takes off the absorption regeneration rate and remains unchanged basically.The present invention is with Fe
3O
4SiO
2-PANI is used for micro-polluted water, and (starting point concentration is that 4mg/L～51mg/L) removal of humic acid pollutants has good economic benefit and environmental benefit.The humic acid pollutants starting point concentration is in the water of 4.5mg/L, and the humic acid clearance reaches more than 90.4%; Starting point concentration is in the water of 23mg/L, and the humic acid clearance reaches about 62.2%; Starting point concentration is in the water of 51mg/L, and the humic acid clearance reaches about 35%.
Embodiment
Detection below in conjunction with concrete embodiment and humic acid removal effect is done further detailed description to the present invention, and said is to explanation of the present invention rather than qualification.
Embodiment 1
Fe as sorbent material
3O
4SiO
2-PANI, present embodiment specifically adopt chemical oxidization method to synthesize:
With 0.04mol FeCl
36H
2O and 0.02mol FeCl
24H
2Be dissolved in after O mixes and get mixed solution A in the 50ml0.5mol/L hydrochloric acid; In the 450ml 1.5mol/L NaOH aqueous solution, drip mixed solution A while stirring then; Dropwise back aging reaction 1h under 80 ℃, nitrogen protection condition and get the solid synthetics, with the solid synthetics with deionized water wash after under 50 ℃ of conditions vacuum drying obtain Fe
3O
4
With 0.5g Fe
3O
4Successively through 0.1mol/L hydrochloric acid, join after going dried up cleaning among the mixing solutions B that 240ml absolute ethyl alcohol and 60ml deionized water form; The ultrasonic 30min of water-bath then; Ultrasonic power is 80kW, adds massfraction after water-bath is ultrasonic at ambient temperature while stirring and is 28～30% ammoniacal liquor and make pH reach 11, drips 1.0mL tetraethoxy (TEOS) then; Under 50 ℃ of conditions, stir 12h behind the adding tetraethoxy and get throw out, with obtaining Fe after throw out filtration, cleaning, the drying
3O
4SiO
2
With 0.3g Fe
3O
4SiO
2With 0.2g aniline join successively in the 50ml deionized water mixture; In mixture, adding massfraction while stirring and be 35% hydrochloric acid makes pH reach 3; Add hydrochloric acid afterreaction 1h, be cooled to 0～5 ℃ then, add while stirring after the cooling ammonium persulfate aqueous solution (with the 0.26g ammonium persulphate be dissolved in the 2ml deionized water ammonium persulfate aqueous solution); Polyreaction 6h under nitrogen protection obtains Fe with throw out filtration, cleaning, drying after the polyreaction completion then
3O
4SiO
2-PANI.
With Fe
3O
4SiO
2-PANI is as sorbent material, and handling humic acid pollution starting point concentration is the contaminated water of 27.9mg/L, and this contaminated water is mixed by humic acid pollutants and deionized water.For the ease of the calculating of clearance, will contain the water that humic acid pollutes and be placed in the closed container, in closed container, add the Fe that contains 0.0005 times of quality that humic acid pollutes then
3O
4SiO
2-PANI adds Fe
3O
4SiO
2The pH of water body is 5～6 behind the-PANI, and 25 ℃ of constant-temperature shaking absorption, adsorption time is 24h then, collects Fe behind the absorption 24h
3O
4SiO
2-PANI, the adsorptive capacity that records humic acid is 31.36mg/g, the clearance of humic acid is 56.19%.The absorption of humic acid is meant the content of every gram adsorbents adsorb humic acid, and the clearance of humic acid is meant the humic acid concentration that is adsorbed and the ratio of starting point concentration.
Embodiment 2
With embodiment 1, with Fe
3O
4SiO
2-PANI is as sorbent material, and adsorption conditions is 15 ℃ of constant-temperature shaking absorption, and other conditions are constant, and the adsorptive capacity that records humic acid is 23.34mg/g, and clearance is 42.65%.
Embodiment 3
With embodiment 1, with Fe
3O
4SiO
2-PANI is as sorbent material, and adsorption conditions is 35 ℃ of constant-temperature shaking absorption, and other conditions are constant, and the adsorptive capacity that records humic acid is 36.95mg/g, and clearance is 66.55%.
It is thus clear that under the same terms, along with the rising of temperature, the adsorptive capacity of humic acid and clearance all increase accordingly.
Embodiment 4
With embodiment 1, with Fe
3O
4SiO
2-PANI is as sorbent material, and adsorption time is 10min in the adsorption conditions, and other conditions are constant, and the adsorptive capacity that records humic acid is 12.32mg/g, and the clearance of humic acid is 22.08%;
Embodiment 5
With embodiment 1, with Fe
3O
4SiO
2-PANI is as sorbent material, and adsorption time is 616min in the adsorption conditions, and other conditions are constant, and the adsorptive capacity that records humic acid is 14.15mg/g, and the clearance of humic acid is 49.29%;
This shows that before absorption reached balance, the adsorptive capacity of humic acid increased along with the increase of time gradually, and adsorption time is long more, the clearance of humic acid is high more.
Embodiment 6
With embodiment 1, with Fe
3O
4SiO
2-PANI in the adsorption conditions, is 2 (acidic conditionss) with pH regulator as sorbent material, and other conditions are constant, and the adsorptive capacity that records humic acid is 52.02mg/g, and the clearance of humic acid is 94.16%;
With embodiment 1, with Fe
3O
4SiO
2-PANI in the adsorption conditions, is 6.0 with pH regulator as sorbent material, and other conditions are constant, and the adsorptive capacity that records humic acid is 28.47mg/g, and the clearance of humic acid is 51.28%;
With embodiment 1, with Fe
3O
4SiO
2-PANI in the adsorption conditions, is 9.1 (alkaline conditions) with pH regulator as sorbent material, and other conditions are constant, and the adsorptive capacity that records humic acid is 12.99mg/g, and the clearance of humic acid is 23.27%;
This shows Fe
3O
4SiO
2-PANI reduces along with the rising of pH the adsorptive capacity of humic acid in the water, and low pH helps the removal of humic acid in the water.
Embodiment 7
With embodiment 1, with Fe
3O
4SiO
2-PANI is as sorbent material, in the adsorption conditions, and Ca in water
2+Concentration is carried out for the 2.5mmol/L condition, and other conditions are constant, and the adsorptive capacity that records humic acid is 50.92mg/g, and the clearance of humic acid is 92.17%; Work as Ca
2+When concentration reached 15mmol/L, other conditions were constant, and the adsorptive capacity that records humic acid is 52.24mg/g, and the clearance of humic acid is 93.5%.
This shows Fe
3O
4SiO
2-PANI raises along with the increase of ionic strength to the absorption of humic acid in the water.
Embodiment 8
With embodiment 1, after adsorption equilibrium, collect Fe
3O
4SiO
2-PANI is a desorbing agent with the 0.01mol/L NaOH aqueous solution, in closed container, takes off absorption, 15～25 ℃ of constant-temperature shaking, the NaOH aqueous solution and Fe
3O
4SiO
2The mass ratio of-PANI is 1500～2000: 1, takes off adsorption time 10～12h, and it is 76.8% that mensuration is taken off adsorption rate (taking off adsorption rate is humic acid quality and the adsorbent humic acid mass ratio that takes off absorption) for the first time.Taking off absorption back sorbent material and use the deionized water cleaning many times, is neutral to pH, carries out adsorption experiment once more, and experiment condition is with embodiment 1.Absorption regeneration experiment is adsorbed, is taken off in circulation, regenerate after five times, and taking off absorption regeneration rate (taking off the absorption regeneration rate is this absorption humic acid quality and the humic acid mass ratio that adsorbs for the first time of sorbent material) is 80.6%.
This shows Fe
3O
4SiO
2-PANI can take off absorption to humic acid absorption in the water after saturated in the NaOH of 0.01mol/L solution, regenerate that adsorptive capacity remains unchanged basically after five times, shows that this sorbent material has better recyclability, can be recycled.
Embodiment 9
With embodiment 1, with Fe
3O
4SiO
2Be sorbent material, humic acid is not had tangible adsorption.This shows that the polyaniline on the magnetic adsorbent has played key effect to the adsorption of humic acid.
Claims (8)
1. method of utilizing magnetic polyaniline sorbent material to remove humic acid pollutants in the water; It is characterized in that: may further comprise the steps: the magnetic polyaniline sorbent material that in the water body that desire purifies, adds 0.0004～0.0008 times of water body quality; Utilize the humic acid pollutants in the magnetic polyaniline adsorbents adsorb water body; The magnetic polyaniline sorbent material in the water body is collected in the absorption back under the effect of externally-applied magnetic field, then magnetic polyaniline sorbent material is separated the purifying water body that has obtained removing humic acid pollutants with water body.
2. according to the said a kind of method of utilizing magnetic polyaniline sorbent material to remove humic acid pollutants in the water of claim 1, it is characterized in that: the starting point concentration of humic acid pollutants is 4.5～52mg/L in the water body that said desire purifies.
3. according to the said a kind of method of utilizing magnetic polyaniline sorbent material to remove humic acid pollutants in the water of claim 1; It is characterized in that: the water body that said desire purifies places encloses container; Externally-applied magnetic field is the magnet that is placed on the encloses container lower end; Under externally-applied magnetic field magnetic guiding, the sorption of magnetic polyaniline sorbent material is in the encloses container bottom.
4. according to the said a kind of method of utilizing magnetic polyaniline sorbent material to remove humic acid pollutants in the water of claim 1, it is characterized in that: said magnetic polyaniline sorbent material is Fe
3O
4SiO
2-PANI.
5. according to the said a kind of method of utilizing magnetic polyaniline sorbent material to remove humic acid pollutants in the water of claim 4, it is characterized in that: said Fe
3O
4SiO
2The preparation method of-PANI is:
1) with FeCl
36H
2O and FeCl
24H
2O be dissolved in after according to 2: 1 mixed in molar ratio in the hydrochloric acid of 0.1～0.5mol/L mixed solution A; In 1.0～1.5mol/L NaOH aqueous solution, drip mixed solution A while stirring then; The volume ratio of the mixed solution A and the NaOH aqueous solution is 1: 9; Dropwise back aging reaction 1～2h under 80～85 ℃, nitrogen protection condition and get the solid synthetics, with the solid synthetics with deionized water wash after under 40～50 ℃ of conditions vacuum drying obtain Fe
3O
4
2) with absolute ethyl alcohol and deionized water according to 4: 1 volume ratio mix mixing solutions B, with Fe
3O
4With joining after 0.05～0.1mol/L hydrochloric acid, the washed with de-ionized water among the mixing solutions B, the ultrasonic 25～30min of water-bath adds ammoniacal liquor at ambient temperature while stirring and makes pH reach 11 after water-bath is ultrasonic then, drips tetraethoxy then, every 0.5g Fe successively
3O
4Need to add the 1.0mL tetraethoxy, under 50～60 ℃ of conditions, stir 11～12h behind the adding tetraethoxy and get throw out, throw out filtration, cleaning, drying are obtained Fe
3O
4SiO
2
3) with Fe
3O
4SiO
2With aniline join successively in the deionized water mixture, Fe
3O
4SiO
2With the mass ratio of aniline be 3: 2; In mixture, add hydrochloric acid while stirring and make pH reach 3, add hydrochloric acid afterreaction 1～2h, be cooled to 0～5 ℃ then; Add ammonium persulfate aqueous solution after the cooling while stirring; Aniline is 1: 2～2: 1 with the amount of substance ratio of ammonium persulphate, and polyreaction 6～7h under nitrogen protection obtains Fe with throw out filtration, cleaning, drying after the polyreaction completion then
3O
4SiO
2-PANI.
6. according to the said a kind of method of utilizing magnetic polyaniline sorbent material to remove humic acid pollutants in the water of claim 4, it is characterized in that: said Fe
3O
4SiO
2-PANI takes off absorption under alkaline condition, realize regeneration.
7. according to the said a kind of method of utilizing magnetic polyaniline sorbent material to remove humic acid pollutants in the water of claim 4, it is characterized in that: said Fe
3O
4SiO
2The renovation process of-PANI is: the Fe that will be adsorbed with humic acid pollutants
3O
4SiO
2-PANI places 0.01～0.05mol/L NaOH aqueous solution concussion 10～12h under 15～25 ℃ to take off absorption, the NaOH aqueous solution and Fe
3O
4SiO
2The mass ratio of-PANI is 1500～2000:1, and the Fe after the absorption is taken off in collection
3O
4SiO
2-PANI, the water cleaning many times is neutral to pH, can reuse.
8. according to the said a kind of method of utilizing magnetic polyaniline sorbent material to remove humic acid pollutants in the water of claim 1, it is characterized in that: the temperature of water body is that 15～35 ℃, pH are 2.0～10.0 in the said adsorption process, Ca in the water body
2+Ionic concentration is 0～20mmol/L, and adsorption time is 1.0min～24h.
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