CN105944698A - Adsorbent for heavy metal ions in industrial wastewater and preparation method of adsorbent - Google Patents
Adsorbent for heavy metal ions in industrial wastewater and preparation method of adsorbent Download PDFInfo
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- 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
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
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- 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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
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- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/223—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material containing metals, e.g. organo-metallic compounds, coordination complexes
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
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- 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
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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
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Abstract
The invention provides a preparation method of an adsorbent for heavy metal ions in industrial wastewater. The preparation method comprises the following specific steps: firstly, preparing modified composite powder; secondly, preparing a composite crosslinking adsorbent; thirdly, preparing a magnetic composite crosslinking adsorbent. According to the adsorbent provided by the invention, active medical stone powder and sepiolite are compounded to serve as a base raw material of the adsorbent; the characteristics that the active medical stone powder and the sepiolite have high specific surface area, complex channel structures and excellent adsorption sites are sufficiently combined, so that the adsorption activity of the adsorbent adopting a single raw material is greatly improved. In addition, a quaternary ammonium salt tetramer surfactant and sodium dodecyl sulfate are adopted to firstly modify the active medical stone powder and the sepiolite, and further the alternating performance and the adsorbing performance of the active medical stone powder and the sepiolite are improved; polyvinyl alcohol and chitosan are introduced to perform a crosslinking reaction, so that the stability and the strength of the adsorbent are improved, and pollutants such as the heavy metal ions, dye and petrochemical pollutants in the industrial wastewater can be efficiently cleared by high-efficiency adsorption of the adsorbent.
Description
Technical field
The invention belongs to technical field of waste water processing, be specifically related to a kind of industrial wastewater adsorbent for heavy metal and system thereof
Preparation Method.
Background technology
Along with expanding economy, the chemical plant of various places gets more and more, the focus being treated as all circles' concern of trade effluent,
Traditional plating, process hides, Treatment of Metal Surface, printing and dyeing, petrochemical industry and the wastewater discharge containing other organic pollutions increase day by day
Add.Dyestuff is first kinds of pollution matter common in waste water, mostlys come from weaving, leather, papermaking, rubber, plastics, cosmetics, system
In the production process of the industrial circle such as medicine and food.Dyestuff be widely used in promotion economic development while, also create big
The waste water from dyestuff of amount is discharged in environment water, result in the pollution of natural water.Therefore, to the improvement of waste water from dyestuff, oneself becomes
One of study hotspot of water treatment field.In early days, conventional dye waste water treatment method mainly includes flocculent precipitation, chemical oxygen
Change method, membrane separation process and biological degradation method.Although these methods can reduce containing of dyestuff in waste water from dyestuff to a certain extent
Amount, but still there is defect miscellaneous, such as, because adsorption rate is low, processing cost is too high and becomes waste water from dyestuff composition
The bad adaptability changed, result is that the removal effect to dyestuff is not good enough, is additionally also possible to produce poisonous and harmful in processing procedure
By-product or a large amount of mud, thus cause secondary pollution.Process for treating heavy-metal waste water mainly has three classes: chemical reaction is removed
Method, Adsorption Concentration separation removal method and microorganism or plant removal method.The first kind is that heavy metal ions in wastewater passes through chemistry
The method that reaction removes includes neutralization precipitation method, sulphide precipitation, ferrite coprecipitation, chemical reduction method, electrochemistry also
Former method and high molecular heavy metals trapping agent method etc.；Equations of The Second Kind is to make the heavy metal in waste water in the condition not changing its chemical form
Under carry out the method adsorbing, concentrate, separate, including absorption, solvent extraction, evaporation and freezing method, ion exchange and membrance separation etc.；
3rd class be made by microorganism or the flocculation of plant, absorb, accumulate, method that heavy metal in waste water is removed in the effect such as enrichment, its
Include bioflocculation, biochemical process and plant ecological reparation etc..The conventional processes of heavy metal wastewater thereby generally exists into
The shortcomings such as this height, reaction is slow, easily cause secondary pollution, low concentration wastewater process is difficult.Adsorption treatment technology is a kind of simple effective
The technology processing waste water, extensively should have in the process containing heavy metal ion industrial wastewater, waste water from dyestuff, petrochemical wastewater etc.
With.At present, the active charcoal of Industrial Wastewater Treatment common technology adsorbs, zeolite exchange etc..Activated carbon is because it is expensive, regeneration multiple
The feature such as miscellaneous, it is difficult to large-scale use.
Summary of the invention
The technical problem to be solved is to provide a kind of based on callable adsorbent of magnetic and preparation method thereof,
With solve prior art exist adsorbent expensive, adsorption effect is poor, and adsorption efficiency is low, difficult for regeneration and regenerate after weak effect
Problem.
For solving the problems referred to above, the technical solution used in the present invention is:
The preparation method of a kind of industrial wastewater adsorbent for heavy metal, comprises the steps:
(1) preparation of modified composite granule: the meerschaum of the active maifanite powder and 20-40 part that take 15-30 part is scattered in
In the solvent of 100-180 part, and ultrasonic vibration 1-2h at room temperature, then drip the quaternary ammonium salt four cohesive surface activating agent of 6-12 part
Being modified reaction with the sodium lauryl sulphate of 4-8 part, described modified-reaction is carried out under water-bath, and reaction temperature is 75-85
DEG C, the response time is 4-8 hour, modified complete after carry out filtering, wash, be dried, pulverize, it is thus achieved that modification composite granule, described work
Property maifanite powder be that medical stone granule: heats after crushed and last natural cooling obtains；
(2) preparation of composite crosslinking adsorbent: the modified composite granule that step (1) obtains is joined the polyethylene of 10-15 part
Mixing and stirring in the chitosan of alcohol and 6-12 part, then joins said mixture being fixed in boric acid solution and hands over
Connection, solidfied material is cleaned, is dried, i.e. obtains composite crosslinking adsorbent；
(3) preparation of magnetic coupling crosslinking adsorbent: the composite crosslinking adsorbent that step (2) obtains is joined 30-40 part
In mixed molysite solution, at N2Under protection, under the conditions of 50 DEG C, stirring reaction 20-30 min i.e. obtains a described industrial wastewater huge sum of money
Belong to ion adsorbent.
Wherein, the preparation method of described quaternary ammonium salt four cohesive surface activating agent is: at the 250mL there-necked flask equipped with condensing tube
In, adding dehydrated alcohol 50mL, ethylenediamine 5.5g, room temperature carries out magnetic agitation, adds epoxychloropropane with 10/min
35.8g, 50 DEG C of back flow reaction 4h after dropping, obtain four cohesive surface surfactant intermediate after decompression distillation, for faint yellow half
Clear viscous liquids, takes this intermediate 20g, and dehydrated alcohol and deionized water mixed solution 50mL with volume ratio as 1:l are molten
Agent, then drip 7.9gN, N-dimethyl dodecyl base tertiary amine, it is warming up to 80 DEG C, reacts 1h, decompression distillation, recrystallization, vacuum is done
Dry acquisition white powdery solids is quaternary ammonium salt four cohesive surface activating agent.
Described boric acid solution is saturated boric acid solution；During being fixed crosslinking, temperature controls between 5 to 15 DEG C, crosslinking
Time be 2-12h.
Described mixed molysite be mol ratio be the FeSO of 1:1.5-2.54·7H2O and FeC13·6H2The mixture of O.
After adding mixed molysite solution in described step (3), being slowly added dropwise 1-2 part concentration during stirring is 28%
Ammonia, ammonia finishes and is warming up to 50 DEG C again.
In described step (1), solvent is in toluene, N,N-dimethylformamide, DMAC N,N' dimethyl acetamide, oxolane
One or more.
Described industrial wastewater is one or more in the waste water containing heavy metal ion, dyeing waste water, petrochemical wastewater.
The technique effect of the present invention is: (1) adsorbent of the present invention carries out compound work with activity maifanite powder and meerschaum
Based on adsorbent material, fully combine the two and there is high-ratio surface agent, complicated pore passage structure and the spy of excellent adsorption site
Property, greatly improve the single raw material adsorption activity as adsorbent；It addition, the present invention uses quaternary ammonium salt four cohesive surface activating agent
First activity maifanite powder and meerschaum are modified with sodium lauryl sulphate so that activity maifanite powder and Hai Pao
The organic group that stone surface inserting molecular weight is the biggest, improves it and replaces performance and absorption property, subsequently by introducing polyvinyl alcohol
Carry out cross-linking reaction with chitosan and on the one hand improve stability and the intensity of adsorbent, on the other hand access at adsorbent surface
Abundant activated adoption group, makes gained adsorbent energy efficient absorption remove the pollutant in industrial wastewater, as heavy metal ion,
Dyestuff and petrochemical industry pollutant etc..(2) adsorbent of the present invention is owing to having magnetic, and after absorption, described adsorbent can be 20
Thoroughly reclaim under minute interior magnetic field, it is not necessary to filter, settle, the extra process such as be centrifuged.
Detailed description of the invention
Below in conjunction with embodiment, technical scheme is further elaborated:
Embodiment 1
The preparation method of a kind of industrial wastewater adsorbent for heavy metal, comprises the steps:
(1) preparation of modified composite granule: take the active maifanite powder of 15 parts and the meerschaum of 20 parts is scattered in the first of 100 parts
In benzene, and ultrasonic vibration 1h at room temperature, the quaternary ammonium salt four cohesive surface activating agent of then dropping 6 parts and the dodecyl sulfur of 4 parts
Acid sodium is modified reaction, and described modified-reaction is carried out under water-bath, and reaction temperature is 75 DEG C, and the response time is 4 hours, modified
Carrying out after complete filtering, wash, be dried, pulverize, it is thus achieved that modified composite granule, described activity maifanite powder is medical stone granule:
Heating after crushed last natural cooling obtain；
(2) preparation of composite crosslinking adsorbent: the modified composite granule that step (1) obtains is joined 10 parts polyvinyl alcohol and
Mixing and stirring in the chitosan of 6 parts, then joins being fixed crosslinking in saturated boric acid solution by said mixture,
Crosslinking temperature controls between 10 DEG C, and the time of crosslinking is 8h, and solidfied material is cleaned, dried, and i.e. obtains composite crosslinking adsorbent；
(3) preparation of magnetic coupling crosslinking adsorbent: the composite crosslinking adsorbent that step (2) obtains is joined the mixing of 30 parts
In iron salt solutions, at N2Under protection, being under agitation slowly added dropwise 1 part of concentration is the ammonia of 28%, 50 DEG C of conditions after dropping
Lower stirring reaction 20min i.e. obtains described industrial wastewater adsorbent for heavy metal.
Embodiment 2
The preparation method of a kind of industrial wastewater adsorbent for heavy metal, comprises the steps:
(1) preparation of modified composite granule: take the active maifanite powder of 30 parts and the meerschaum of 40 parts is scattered in the N of 180 parts,
In dinethylformamide, and ultrasonic vibration 2h at room temperature, the quaternary ammonium salt four cohesive surface activating agent of then dropping 12 parts and 8 parts
Sodium lauryl sulphate be modified reaction, described modified-reaction is carried out under water-bath, and reaction temperature is 85 DEG C, the response time
Be 8 hours, modified complete after carry out filtering, wash, be dried, pulverize, it is thus achieved that modification composite granule, described active maifanite powder
It is that medical stone granule: heats after crushed and last natural cooling obtains；
(2) preparation of composite crosslinking adsorbent: the modified composite granule that step (1) obtains is joined 15 parts polyvinyl alcohol and
Mixing and stirring in the chitosan of 12 parts, then joins said mixture being fixed in saturated boric acid solution and hands over
Connection, crosslinking temperature controls between 10 DEG C, and the time of crosslinking is 8h, and solidfied material is cleaned, dried, and i.e. obtains composite crosslinking absorption
Agent；
(3) preparation of magnetic coupling crosslinking adsorbent: the composite crosslinking adsorbent that step (2) obtains is joined the mixing of 40 parts
In iron salt solutions, at N2Under protection, being under agitation slowly added dropwise 1 part of concentration is the ammonia of 28%, 50 DEG C of conditions after dropping
Lower stirring reaction 30 min i.e. obtain described industrial wastewater adsorbent for heavy metal.
Embodiment 3
The preparation method of a kind of industrial wastewater adsorbent for heavy metal, comprises the steps:
(1) preparation of modified composite granule: take the active maifanite powder of 25 parts and the meerschaum of 30 parts is scattered in described in 150 and walks
Suddenly in (1), solvent is one or more in toluene, N,N-dimethylformamide, DMAC N,N' dimethyl acetamide, oxolane,
Described activity maifanite powder is that medical stone granule: heats after crushed and last natural cooling obtains.
Described industrial wastewater is one or more in the waste water containing heavy metal ion, dyeing waste water, petrochemical wastewater.
The technique effect of the present invention is: (1) adsorbent of the present invention carries out compound work with activity maifanite powder and meerschaum
Based on adsorbent material, fully combine the two and there is high-ratio surface agent, complicated pore passage structure and the spy of excellent adsorption site
Property, greatly improve the single raw material adsorption activity as adsorbent；It addition, the present invention uses quaternary ammonium salt four cohesive surface activating agent
First activity maifanite powder and meerschaum are modified with sodium lauryl sulphate so that activity maifanite powder and Hai Pao
The organic group that stone surface inserting molecular weight is the biggest, improves it and replaces performance and absorption property, subsequently by introducing polyvinyl alcohol
Carry out cross-linking reaction with chitosan and on the one hand improve stability and the intensity of adsorbent, on the other hand access at adsorbent surface
Abundant activated adoption group, makes gained adsorbent energy efficient absorption remove the pollutant in industrial wastewater, as heavy metal ion,
Dyestuff and petrochemical industry pollutant etc..
(2) adsorbent of the present invention is owing to having magnetic, and after absorption, described adsorbent can be under 20 minutes interior magnetic fields
Thoroughly reclaim, it is not necessary to filter, settle, the extra process such as be centrifuged.
Embodiment 4
The preparation method of a kind of industrial wastewater adsorbent for heavy metal, comprises the steps:
(1) preparation of modified composite granule: take the active maifanite powder of 15 parts and the meerschaum of 20 parts is scattered in the first of 100 parts
In benzene, and ultrasonic vibration 1h at room temperature, the quaternary ammonium salt four cohesive surface activating agent of then dropping 6 parts and the dodecyl sulfur of 4 parts
Acid sodium is modified reaction, and described modified-reaction is carried out under water-bath, and reaction temperature is 75 DEG C, and the response time is 4 hours, modified
Carrying out after complete filtering, wash, be dried, pulverize, it is thus achieved that modified composite granule, described activity maifanite powder is medical stone granule:
Heating after crushed last natural cooling obtain；
(2) preparation of composite crosslinking adsorbent: the modified composite granule that step (1) obtains is joined 10 parts polyvinyl alcohol and
Mixing and stirring in the chitosan of 6 parts, then joins being fixed crosslinking in saturated boric acid solution by said mixture,
Crosslinking temperature controls between 10 DEG C, and the time of crosslinking is 8h, and solidfied material is cleaned, dried, and i.e. obtains composite crosslinking adsorbent；
(3) preparation of magnetic coupling crosslinking adsorbent: the composite crosslinking adsorbent that step (2) obtains is joined the mixing of 30 parts
In iron salt solutions, at N2Under protection, being under agitation slowly added dropwise 1 part of concentration is the ammonia of 28%, 50 DEG C of conditions after dropping
Lower stirring reaction 20min i.e. obtains described industrial wastewater adsorbent for heavy metal.
Embodiment 5
The preparation method of a kind of industrial wastewater adsorbent for heavy metal, comprises the steps:
(1) preparation of modified composite granule: take the active maifanite powder of 30 parts and the meerschaum of 40 parts is scattered in the N of 180 parts,
In dinethylformamide, and ultrasonic vibration 2h at room temperature, the quaternary ammonium salt four cohesive surface activating agent of then dropping 12 parts and 8 parts
Sodium lauryl sulphate be modified reaction, described modified-reaction is carried out under water-bath, and reaction temperature is 85 DEG C, the response time
Be 8 hours, modified complete after carry out filtering, wash, be dried, pulverize, it is thus achieved that modification composite granule, described active maifanite powder
It is that medical stone granule: heats after crushed and last natural cooling obtains；
(2) preparation of composite crosslinking adsorbent: the modified composite granule that step (1) obtains is joined 15 parts polyvinyl alcohol and
Mixing and stirring in the chitosan of 12 parts, then joins said mixture being fixed in saturated boric acid solution and hands over
Connection, crosslinking temperature controls between 10 DEG C, and the time of crosslinking is 8h, and solidfied material is cleaned, dried, and i.e. obtains composite crosslinking absorption
Agent；
(3) preparation of magnetic coupling crosslinking adsorbent: the composite crosslinking adsorbent that step (2) obtains is joined the mixing of 40 parts
In iron salt solutions, at N2Under protection, being under agitation slowly added dropwise 1 part of concentration is the ammonia of 28%, 50 DEG C of conditions after dropping
Lower stirring reaction 30 min i.e. obtain described industrial wastewater adsorbent for heavy metal.
Comparative example 1
Preparation method is same as in Example 1, and unique difference is not use activity maifanite powder.
Comparative example 2
Preparation method is same as in Example 1, and unique difference is that modified feedstock is only with quaternary ammonium salt four cohesive surface activating agent.
Comparative example 3
Preparation method is same as in Example 1, and unique difference is not carry out the cross-linking reaction of step (2).
Adsorption experiment I: embodiment 1-5 and comparative example 1-3 are to the absorption containing heavy metal ion industrial wastewater.
Take the Cu being respectively 8.Omg/L containing each ion concentration2+, Ni2+, Zn2+, Hg2+, Fe3+Industrial wastewater
50mL, each addition adsorbent 0.05g, 100r/min constant temperature oscillation 2h, ICP (inductively coupled plasma atomic emission at 25 DEG C
Instrument) detect metal ion change before and after reaction, its result is as shown in table 1.
Can be drawn by table 1, the adsorbent of embodiment 1-5 all demonstrates good absorption property, and is better than comparative example 1-3
Adsorbent.
Adsorption experiment II: embodiment 1-5 and comparative example 1-3 are to the absorption containing Congo red printing and dyeing industrial waste water.
Accurately weigh 0 05g adsorbent in 250mL conical flask, add 50.OmL, be 100mg/L's containing Congo red concentration
Dyeing waste water solution, 100r/min at 25 DEG C, constant temperature oscillation, to balance, takes supernatant at regular intervals from bottle in adsorption process
Liquid, uses spectrophotometric determination solution concentration, and its result is as shown in table 2.
Can be drawn by table 2, the adsorbent of embodiment 1-5 all demonstrates good suction to the dyeing waste water solution containing Congo red
Attached performance and recycling performance, and it is better than the adsorbent of comparative example 1-3.
Finally it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention,
Although being described in detail the present invention with reference to previous embodiment, for a person skilled in the art, it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent.
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (8)
1. the preparation method of an industrial wastewater adsorbent for heavy metal, it is characterised in that comprise the steps:
(1) preparation of modified composite granule: the meerschaum of the active maifanite powder and 20-40 part that take 15-30 part is scattered in
In the solvent of 100-180 part, and ultrasonic vibration 1-2h at room temperature, then drip the quaternary ammonium salt four cohesive surface activating agent of 6-12 part
Being modified reaction with the sodium lauryl sulphate of 4-8 part, described modified-reaction is carried out under water-bath, and reaction temperature is 75-85
DEG C, the response time is 4-8 hour, modified complete after carry out filtering, wash, be dried, pulverize, it is thus achieved that modification composite granule, described work
Property maifanite powder be that medical stone granule: heats after crushed and last natural cooling obtains；
(2) preparation of composite crosslinking adsorbent: the modified composite granule that step (1) obtains is joined the polyethylene of 10-15 part
Mixing and stirring in the chitosan of alcohol and 6-12 part, then joins said mixture being fixed in boric acid solution and hands over
Connection, is subsequently cured thing and cleans, dries, i.e. obtain composite crosslinking adsorbent；
(3) preparation of magnetic coupling crosslinking adsorbent: the composite crosslinking adsorbent that step (2) obtains is joined 30-40 part
In mixed molysite solution, at N2Under protection, under the conditions of 50 DEG C, stirring reaction 20-30 min i.e. obtains a described industrial wastewater huge sum of money
Belong to ion adsorbent.
Preparation method the most according to claim 1, it is characterised in that the preparation side of described quaternary ammonium salt four cohesive surface activating agent
Method is: equipped with in the 250mL there-necked flask of condensing tube, adding dehydrated alcohol 50mL, ethylenediamine 5.5g, room temperature carries out magnetic force and stirs
Mix, add epoxychloropropane 35.8g, 50 DEG C of back flow reaction 4h after dropping with 10/min, obtain four after decompression distillation and gather
Surfactant-intermediate, for faint yellow translucent thick liquid, takes this intermediate 20g, adds the anhydrous second that volume ratio is 1:l
Alcohol and deionized water mixed solution 50mL are solvent, then drip 7.9gN, N-dimethyl dodecyl base tertiary amine, are warming up to 80 DEG C, instead
Answering 1h, decompression distillation, recrystallization, vacuum drying obtains white powdery solids and is quaternary ammonium salt four cohesive surface activating agent.
Preparation method the most according to claim 1, it is characterised in that described boric acid solution is saturated boric acid solution；Carry out
During immobilization crosslinking, temperature controls between 5 to 15 DEG C, and the time of crosslinking is 2-12h.
Preparation method the most according to claim 1, it is characterised in that described mixed molysite be mol ratio be 1:1.5-
The FeSO of 2.54·7H2O and FeC13·6H2The mixture of O.
Preparation method the most according to claim 1, it is characterised in that after adding mixed molysite solution in described step (3),
Being slowly added dropwise 1-2 part concentration during stirring is the ammonia of 28%, and ammonia finishes and is warming up to 50 DEG C again.
Preparation method the most according to claim 1, it is characterised in that in described step (1), solvent is toluene, N, N-diformazan
One or more in base Methanamide, DMAC N,N' dimethyl acetamide, oxolane.
7. the adsorbent that method described in an any one of claim 1-6 prepares.
8. the application in processing industrial wastewater of the adsorbent described in a claim 7, it is characterised in that described industrial wastewater is
One or more in waste water containing heavy metal ion, dyeing waste water, petrochemical wastewater.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430492A (en) * | 2016-11-17 | 2017-02-22 | 郑州诚合信息技术有限公司 | Reinforced coagulant for industrial wastewater as well as preparation method and application of reinforced coagulant |
| CN106824136A (en) * | 2017-03-21 | 2017-06-13 | 郑州汉东科技有限公司 | A kind of adsorbent for Industrial Wastewater Treatment and preparation method thereof |
| CN108083450A (en) * | 2017-12-10 | 2018-05-29 | 常州市鼎日环保科技有限公司 | A kind of RE waste water complexing agent |
| CN111233069A (en) * | 2020-01-17 | 2020-06-05 | 郑州大学 | Permeable reactive barrier active material and preparation method thereof |
| CN115212851A (en) * | 2022-08-12 | 2022-10-21 | 中交（广州）建设有限公司 | Heavy metal wastewater treatment material, preparation method and application thereof, and post-treatment method |
-
2016
- 2016-07-05 CN CN201610521481.XA patent/CN105944698A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430492A (en) * | 2016-11-17 | 2017-02-22 | 郑州诚合信息技术有限公司 | Reinforced coagulant for industrial wastewater as well as preparation method and application of reinforced coagulant |
| CN106824136A (en) * | 2017-03-21 | 2017-06-13 | 郑州汉东科技有限公司 | A kind of adsorbent for Industrial Wastewater Treatment and preparation method thereof |
| CN108083450A (en) * | 2017-12-10 | 2018-05-29 | 常州市鼎日环保科技有限公司 | A kind of RE waste water complexing agent |
| CN108083450B (en) * | 2017-12-10 | 2021-03-02 | 陈云兰 | Complexing agent for rare earth wastewater |
| CN111233069A (en) * | 2020-01-17 | 2020-06-05 | 郑州大学 | Permeable reactive barrier active material and preparation method thereof |
| CN115212851A (en) * | 2022-08-12 | 2022-10-21 | 中交（广州）建设有限公司 | Heavy metal wastewater treatment material, preparation method and application thereof, and post-treatment method |
| CN115212851B (en) * | 2022-08-12 | 2023-09-22 | 中交（广州）建设有限公司 | Heavy metal wastewater treatment material, preparation method, application and post-treatment method |
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Application publication date: 20160921 |