CN108993387A - A kind of method of contents of many kinds of heavy metal ion in the carbon-based magnetic material Adsorption waste water of fluorine doped - Google Patents
A kind of method of contents of many kinds of heavy metal ion in the carbon-based magnetic material Adsorption waste water of fluorine doped Download PDFInfo
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- CN108993387A CN108993387A CN201810890876.6A CN201810890876A CN108993387A CN 108993387 A CN108993387 A CN 108993387A CN 201810890876 A CN201810890876 A CN 201810890876A CN 108993387 A CN108993387 A CN 108993387A
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/027—Compounds of F, Cl, Br, I
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28009—Magnetic properties
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
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- C02F2101/20—Heavy metals or heavy metal compounds
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Abstract
The invention discloses the methods of contents of many kinds of heavy metal ion in a kind of carbon-based magnetic material Adsorption waste water of fluorine doped.This method comprises the following steps: (1) adjusting and contain Cu2+、Pb2+、Zn2+、Ni2+And Cd2+The concentration and pH value of the industrial wastewater of five metal ion species add the magnetic carbon material of solid absorbent Fluorin doped, form mixing suspension;(2) mixing suspension concussion is handled, after treatment, separates and recovers solid absorbent, the water body after detection processing.Reaction temperature of the present invention is lower, and short processing time, process is simple, not only reduces the energy consumption in adsorption process, also improves the efficiency of absorption, saves the time.The present invention can be directly separated by filtration using the magnetic carbon material of Fluorin doped as adsorbent with waste water solution;Simultaneously prepare the adsorbent raw material have it is from a wealth of sources, adsorption activity is higher, and easily separated, cheap, corrosion-free and environmental-friendly, stability is good, can be recycled.
Description
Technical field
The present invention relates to contain Cu2+、Pb2+、Zn2+、Ni2+And Cd2+The improvement field of five kinds of ion waste waters, and in particular to a kind of
The method of contents of many kinds of heavy metal ion in the carbon-based magnetic material Adsorption waste water of fluorine doped.
Background technique
The quickening of social modernization's process, so that problem of environmental pollution grows in intensity, wherein the water pollution of earth surface is asked
Topic has become international hot topic.Modern industry causes contained heavy metal ion type in the sewage of discharge to be got over concentration
Come it is more, such as chromium, mercury, cadmium, lead, copper, zinc and arsenic etc. [Journal of Hazardous materials, 2009,161
(2–3):1103-1108].The presence of these heavy metal ion has seriously affected environment water safety, has threatened human health.Root
It is provided according to China environmental protection office, every heavy metal species ion has certain safe limit [Water in drinking water
Research,2007,41(10):2101-2108].For some problems existing at present, scientific research circle at present has developed one
A little technologies are with heavy-metal ion removal, including cyaniding, chemical precipitation, chemical reduction method, ion exchange and hyperfiltration
[Separation and Purification Technology,2002,26(2):137-146;Journal of
Hazardous materials,2009,167(1):260-267;Advances in Environmental Research,
2003,7(2):471-478;Journal of Hazardous materials,2003,97(1):49-57;Journal of
Hazardous materials,2009,170(2):1119-1124].But there is more apparent defect in these methods.
Recent studies have found that being had a clear superiority using absorption method, cost is relatively low and efficient [ACS Applied Materials&
Interfaces, 2013,5 (3): 598-604], it can more effectively remove heavy metal.
Magnetic carbon nano-composite material has been got over due to its excellent removing heavy metals ion energy and the characteristic being easily isolated
To get over the attention by educational circles.The preparation of magnetic carbon nano-composite material is usually to cross the magnetic gold of introducing in carbon material preparation process
Belong to salt (such as Fe), to assign its excellent magnetism, facilitates quick separating [the Journal of after absorption is completed
Materials Chemistry A,2015,3(18):9817-9825].Since last year, surface is carried out into magnetic carbon material
It is modified and adulterates and be applied to environmental treatment and be increasingly becoming a hot spot [Carbon 2016;109:640-649;Carbon
2017;115:503-514].Our research confirms that heteroatomic introducing can effectively adjust the surface electronic characteristic of adsorbent,
To enhance its suction-operated to heavy metal ion.For example, the magnetic mesoporous carbon material of N doping is as adsorbent with excellent
It is different to remove chromium ion removal capacity, adsorbance is reachable~2000mg/g [Carbon 2016;109:640-649].Meanwhile no
It can be with the metal removal ability of Effective Regulation magnetism carbon material with Heteroatom doping.According to literature survey, F atom ratio N atom tool
There is higher electronegativity, can preferably regulate and control the cloud density of carbon material surface, moreover, we have demonstrated that the magnetic of doping
Property carbon material to hexavalent chromium have preferable absorption property.It is especially more but to the treatment effect of other metal ions
The research of the system that metal ion species coexist, this aspect does not have precedent both at home and abroad at present.Meanwhile the Fluorin doped that this patent uses
Magnetic carbon material be adsorbent administer industrial wastewater contents of many kinds of heavy metal ion do not have relevant report also at present, this is also this research
Maximum bright spot.
Based on this, it is used to remove the Cu in industrial wastewater using the magnetic carbon material of Fluorin doped2+、Pb2+、Zn2+、Ni2+With
Cd2+Ion proposes Cu in Adsorption industrial wastewater simultaneously2+、Pb2+、Zn2+、Ni2+And Cd2+The method of ion, the research method
Report is had not yet to see in related fields.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of magnetic carbon material removal work of Fluorin doped
Cu in industry waste water2+、Pb2+、Zn2+、Ni2+And Cd2+The method of ion.This method is using the magnetic carbon material of Fluorin doped as solid absorption
Agent handles the Cu in absorption industrial wastewater by concussion2+、Pb2+、Zn2+、Ni2+And Cd2+Ion, process is simple, safe operation,
To the Cu in waste water2+、Pb2+、Zn2+、Ni2+And Cd2+The separative efficiency of ion is high, and treated solid absorbent easily separated time
It receives and utilizes.
The purpose of the present invention is achieved through the following technical solutions.
A kind of method of contents of many kinds of heavy metal ion in the carbon-based magnetic material Adsorption waste water of fluorine doped, including walk as follows
It is rapid:
(1) it adjusts and contains Cu2+、Pb2+、Zn2+、Ni2+And Cd2+The concentration and pH value of the industrial wastewater of five metal ion species, then
The magnetic carbon material of solid absorbent Fluorin doped is added, forms mixing suspension;It is magnetic in the magnetic carbon material of the Fluorin doped
Doping particle is Fe, and the content of F is 0.1~3.0wt%, and the content of Fe is 0.1~3wt%;
(2) mixing suspension obtained by step (1) is heated, and carries out concussion processing;After treatment separates and recovers solid
Adsorbent, the aqueous solution after detection processing.
It is described to contain Cu in step (1) in the above method2+、Pb2+、Zn2+、Ni2+And Cd2+The Industry Waste of five metal ion species
In water, the concentration of every metal ion species is 0.001~1000mg/L.
In the above method, in step (1), described adjust contains Cu2+、Pb2+、Zn2+、Ni2+And Cd2+The work of five metal ion species
The pH value of industry waste water is 1~7.
In the above method, in step (1), the preparation of the magnetic carbon material of the Fluorin doped is the following steps are included: by trimerization
Cyanamide and nine water ferric nitrates are dispersed in alcohol solvent, are dried, are subsequently placed into tube furnace at 60~130 DEG C, in nitrogen gas
It is warming up to 650~900 DEG C under atmosphere and keeps the temperature 1~4 hour, room temperature is down to after heat preservation, takes out, obtains the magnetic carbon materials of Fluorin doped
Material;The mass ratio of the quality of the melamine and nine Ferric Chloride Hydrateds is (0.1~10): 1.
In the above method, in step (1), the solid absorbent is 0.001~100g/ relative to the concentration of industrial wastewater
L。
In the above method, in step (2), it is 30~60 DEG C that the heating, which is heated to temperature,.
In the above method, in step (2), the rate of the concussion processing is 10~400rpm.
In the above method, in step (2), the time of the concussion processing is 0.01~20h.
After wastewater treatment, the solid absorbent of recycling uses 1M sodium hydroxide, 0.1M hydrochloric acid solution and deionized water
Solution cleaning and regeneration obtains clean regenerated solids adsorbent, and reenters at waste water next time as solid absorbent
In reason.
Compared with prior art, the invention has the advantages that and the utility model has the advantages that
(1) reaction temperature of the present invention is lower, and short processing time, process is simple, and safe operation not only reduces adsorption process
In energy consumption, also improve the efficiency of absorption, save the time.
(2) for the present invention using the magnetic carbon material sorbent activity of Fluorin doped as adsorbent, adsorbent and waste water solution can
Directly it is separated by filtration;The magnetic carbon material of Fluorin doped, which prepares raw material, simultaneously has from a wealth of sources, and adsorbent adsorption activity is higher,
Easily separated, cheap, corrosion-free and environmental-friendly, stability is good, the advantages that can be recycled.
Specific embodiment
Below in conjunction with specific embodiment, invention is further described in detail, but protection scope of the present invention is not limited to
In the range of embodiment statement.
In following embodiment, the magnetic carbon material of solid absorbent Fluorin doped is original with Kynoar and nine water ferric nitrates
Material one-step method is pyrolyzed, and is specifically comprised the following steps:
It takes 2g Kynoar and nine water ferric nitrate of 6g to be dispersed in 200mL alcohol solvent, is dried at 110 DEG C, then
It is put into tube furnace, rises to 800 DEG C in a nitrogen atmosphere with the heating rate of 10 DEG C/min and is kept for 2 hours, then to temperature
It is down to room temperature, takes out, obtains the magnetic carbon material of Fluorin doped.
In the magnetic carbon material for the Fluorin doped being prepared, the content of F is 2.65wt%, and the content of Fe is 2.01wt%.
The detection of ion concentration before and after the processing is analyzed using atomic absorption spectrum.
In addition, adsorption capacity qe(mg/g) it obtains according to the following formula:
qe=(C0-Ce) × V/m × 100% (1)
Wherein C represents ion concentration, unit mg/L;V represents the volume of chromium solution, unit L;M represents solid absorbent
Quality, unit g.
Embodiment 1
It (1) is 4.85, Cu by pH value2+、Pb2+、Zn2+、Ni2+And Cd2+The respective concentration of ion is the Industry Waste of 250mg/L
Magnetic carbon material (the 2g/L, relative to waste water of water and Fluorin doped;In the magnetic carbon material of Fluorin doped, the content of F is
The content of 2.65wt%, Fe are added in closed conical flask for 2.01wt%) and mix, and form mixing suspension;
(2) mixing suspension is heated to 30 DEG C, in isothermal vibration device with the frequency processing 0.1h of 200rpm after, from cone
Liquid-solid phase mixture is taken out in shape bottle, is filtered, and solid absorbent and treated aqueous solution are obtained.
To treated, aqueous solution carries out atomic absorption spectroscopy, and adsorbent used in this application is to Cu2+、Pb2+、
Zn2+、Ni2+And Cd2+The removal ability of ion is respectively 122.5mg/g, 103.7mg/g, 81.2mg/g, 10.7mg/g,
93.8mg/g。
Embodiment 2~5
It (1) is 7, Cu by pH value2+、Pb2+、Zn2+、Ni2+And Cd2+The respective concentration of ion industrial wastewater as shown in Table 1
And the magnetic carbon material (2g/L, relative to waste water of Fluorin doped;In the magnetic carbon material of Fluorin doped, the content of F is
The content of 2.65wt%, Fe are added in closed conical flask for 2.01wt%) and mix, and form mixing suspension;
(2) mixing suspension is heated to 30 DEG C, in isothermal vibration device with the frequency processing 0.5h of 200rpm after, from cone
Liquid-solid phase mixture is taken out in shape bottle, is filtered, and solid absorbent and treated aqueous solution are obtained.
To treated, aqueous solution carries out atomic absorption spectroscopy, and the removal of each ion the results are shown in Table 1.
Table 1
As shown in Table 1, with the promotion of concentration of metal ions, the adsorption capacity of the magnetic carbon material of Fluorin doped is obtained greatly
It is promoted.
Embodiment 6~9
It (1) is 7, Cu by pH value2+、Pb2+、Zn2+、Ni2+And Cd2+Respective concentration is that industrial wastewater, the fluorine of 250mg/L is mixed
Miscellaneous magnetic carbon material (2g/L, relative to waste water;In the magnetic carbon material of Fluorin doped, the content of F is 2.65wt%, and Fe's contains
Amount is added in closed conical flask for 2.01wt%) and mixes, and forms mixing suspension;
(2) mixing suspension is heated to 30 DEG C, with the frequency processing of 200rpm in isothermal vibration device, handles the time such as
Shown in table 2, liquid-solid phase mixture is taken out from conical flask, is filtered, obtain solid absorbent and treated aqueous solution.
To treated, aqueous solution carries out atomic absorption spectroscopy, and the removal of each ion the results are shown in Table 2.
Table 2
As shown in Table 2, the extension of sonication treatment time is conducive to improve the magnetic carbon material counterweight metal ion of Fluorin doped
Adsorption capacity.
Embodiment 10~13
It (1) is 7, Cu by pH value2+、Pb2+、Zn2+、Ni2+And Cd2+The respective concentration of ion is the industrial wastewater of 250mg/L
And the magnetic carbon material of Fluorin doped is added in closed conical flask and mixes, the additive amount such as table of the magnetic carbon material of Fluorin doped
(in the magnetic carbon material of Fluorin doped, the content of F is 2.65wt%, and the content of Fe is 2.01wt%) shown in 3, forms mix suspending
Liquid;
(2) mixing suspension is heated to 30 DEG C, with the frequency processing 0.5h of 200rpm in isothermal vibration device, from taper
Liquid-solid phase mixture is taken out in bottle, is filtered, and solid absorbent and treated aqueous solution are obtained.
To treated, aqueous solution carries out atomic absorption spectroscopy, and the removal of each ion the results are shown in Table 3.
Table 3
As shown in Table 3, the addition concentration of the magnetic carbon material of Fluorin doped is improved to the removal capacity of heavy metal ion gradually
Decline, this is because there are extra active sites to be not engaged in absorption, adsorbent is still potential not to be played.
Embodiment 14~15
(1) by Cu2+、Pb2+、Zn2+、Ni2+And Cd2+The respective concentration of ion is that the industrial wastewater of 250mg/L and fluorine are mixed
Miscellaneous magnetic carbon material (2g/L, relative to waste water;In the magnetic carbon material of Fluorin doped, the content of F is 2.65wt%, and Fe's contains
Amount is added in closed conical flask for 2.01wt%) and mixes, and adjusts pH value to value as shown in table 4, forms mixing suspension;
(2) mixing suspension is heated to 30 DEG C, with the frequency processing 0.5h of 200rpm in isothermal vibration device, from taper
Liquid-solid phase mixture is taken out in bottle, is filtered, and solid absorbent and treated aqueous solution are obtained.
To treated, aqueous solution carries out atomic absorption spectroscopy, and the removal of each ion the results are shown in Table 4.
Table 4
As shown in Table 4, the pH value of waste water influences the performance of the magnetic carbon material of Fluorin doped smaller.
Embodiment 16~18
It (1) is 7, Cu by pH value2+、Pb2+、Zn2+、Ni2+And Cd2+The respective concentration of ion is the industrial wastewater of 250mg/L
And the magnetic carbon material (2g/L, relative to waste water of Fluorin doped;In the magnetic carbon material of Fluorin doped, the content of F is
The content of 2.65wt%, Fe are added in closed conical flask for 2.01wt%) and mix, and form mixing suspension;
(2) mixing suspension temperature is heated to value as shown in table 5, in isothermal vibration device with the frequency of 200rpm at
0.5h is managed, liquid-solid phase mixture is taken out from conical flask, is filtered, obtains solid absorbent and treated aqueous solution.
To treated, aqueous solution carries out atomic absorption spectroscopy, and the removal of each ion the results are shown in Table 5.
Table 5
As shown in Table 5, the treatment temperature of waste water is affected to the performance of the magnetic carbon material of Fluorin doped, with processing temperature
The magnetic carbon material of the rising of degree, Fluorin doped steps up the absorption property of each ion.
Embodiment 19~22
(1) by Cu2+、Pb2+、Zn2+、Ni2+And Cd2+The respective concentration of ion is that the industrial wastewater of 250mg/L and fluorine are mixed
Miscellaneous magnetic carbon material (2g/L, relative to waste water;In the magnetic carbon material of Fluorin doped, the content of F is 2.65wt%, and Fe's contains
Amount is added in closed conical flask for 2.01wt%) and mixes, and adjusting pH value is 7, forms mixing suspension;
(2) mixing suspension temperature is heated to 30 DEG C, with the rate processing time in table 6 in isothermal vibration device
0.5h takes out liquid-solid phase mixture from conical flask, is filtered, and obtains solid absorbent and treated aqueous solution.
To treated, aqueous solution carries out atomic absorption spectroscopy, and the removal of each ion the results are shown in Table 6.
Table 6
As shown in Table 6, the concussion rate of waste water is affected to the performance of the magnetic carbon material of Fluorin doped, at ultrasound
The rising of power is managed, the magnetic carbon material of Fluorin doped steps up the absorption property of each ion, but when concussion rate is excessively high
When, it is unfavorable for adsorbing instead.
Stability embodiment 23~26
(1) by Cu2+、Pb2+、Zn2+、Ni2+And Cd2+The respective concentration of ion is that the industrial wastewater of 250mg/L and fluorine are mixed
Miscellaneous magnetic carbon material (2g/L, relative to waste water;In the magnetic carbon material of Fluorin doped, the content of F is 2.65wt%, and Fe's contains
Amount is added in closed conical flask for 2.01wt%) and mixes, and adjusting pH value is 7, forms mixing suspension;
(2) mixing suspension is heated to 30 DEG C, time 0.5h is handled with the revolving speed of 200rpm in isothermal vibration device, from
Liquid-solid phase mixture is taken out in conical flask, is filtered, and solid absorbent and treated aqueous solution are obtained;
(3) solid absorbent replaces by the sodium hydroxide solution, 0.1mol/L hydrochloric acid solution and deionized water of 1mol/L
After cleaning, drying, used next time;And treated aqueous solution atomic absorption spectroscopy, calculate each heavy metal from
The removal effect of son.It is so recycled 5 times, the results are shown in Table 8 for the removal measured.
Table 7
As shown in Table 7, it reuses 5 times, the variation in the case where pH value is 7 of each ion remaval efficiency less, illustrates fluorine
The magnetic carbon material of doping can be recycled, so as to reduce the cost of adsorbent.
Claims (8)
1. the method for contents of many kinds of heavy metal ion in a kind of carbon-based magnetic material Adsorption waste water of fluorine doped, which is characterized in that packet
Include following steps:
(1) it adjusts and contains Cu2+、 Pb2+、 Zn2+、Ni2+And Cd2+The concentration and pH value of the industrial wastewater of five metal ion species, add
The magnetic carbon material of solid absorbent Fluorin doped forms mixing suspension;It is magnetic-doped in the magnetic carbon material of the Fluorin doped
Particle is Fe, and the content of F is 0.1 ~ 3.0 wt%, and the content of Fe is 0.1 ~ 3 wt%;
(2) mixing suspension obtained by step (1) is heated, and carries out concussion processing;After treatment separates and recovers solid absorption
Agent, the aqueous solution after detection processing.
2. described to contain Cu the method according to claim 1, wherein in step (1)2+、 Pb2+、 Zn2+、Ni2+With
Cd2+In the industrial wastewater of five metal ion species, the concentration of every metal ion species is 0.001 ~ 1000 mg/L.
3. the method according to claim 1, wherein described adjust contains Cu in step (1)2+、 Pb2+、 Zn2+、
Ni2+And Cd2+The pH value of the industrial wastewater of five metal ion species is 1 ~ 7.
4. the method according to claim 1, wherein in step (1), the system of the magnetic carbon material of the Fluorin doped
It is standby the following steps are included: melamine and nine water ferric nitrates are dispersed in alcohol solvent, dry at 60 ~ 130 DEG C, then put
Enter in tube furnace, is warming up to 650 ~ 900 DEG C in a nitrogen atmosphere and keeps the temperature 1 ~ 4 hour, room temperature is down to after heat preservation, take out, obtain
To the magnetic carbon material of Fluorin doped;The mass ratio of the quality of the melamine and nine Ferric Chloride Hydrateds is (0.1 ~ 10): 1.
5. the method according to claim 1, wherein the solid absorbent is relative to Industry Waste in step (1)
The concentration of water is 0.001 ~ 100 g/L.
6. the method according to claim 1, wherein in step (2), the heating be heated to temperature be 30 ~
60℃。
7. the method according to claim 1, wherein the rate of the concussion processing is 10 ~ 400 in step (2)
rpm。
8. the method according to claim 1, wherein in step (2), the time of the concussion processing is 0.01~
20h。
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CN114160095A (en) * | 2021-11-11 | 2022-03-11 | 江苏裕隆环保有限公司 | Method for removing multiple heavy metal ions in wastewater through adsorption of rare earth lanthanum-doped magnetic zeolite material |
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