CN109879394A - A kind of high performance agent for removing fluorin and the application in industrial wastewater - Google Patents
A kind of high performance agent for removing fluorin and the application in industrial wastewater Download PDFInfo
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- CN109879394A CN109879394A CN201910319768.8A CN201910319768A CN109879394A CN 109879394 A CN109879394 A CN 109879394A CN 201910319768 A CN201910319768 A CN 201910319768A CN 109879394 A CN109879394 A CN 109879394A
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Abstract
A kind of application the present invention relates to high performance agent for removing fluorin and in industrial wastewater, the chemical agent are the composite drug of organic polymer cationic polymer and nanometer ferrosilite polymer, compound coagulant (WS-F-803#)；The content of nanometer ferrosilite polymer is 5%-30% in compound coagulant (WS-F-803#), and the content of organic polymer cationic polymer is 3%-10%；Fluorine ion in various fluorine-containing industrial wastewaters can be down within 1 mg/L by the medicament.
Description
Technical field
The present invention relates to water treatment fields, are related to phosphate fertilizer plants, fluorine correlation chemical products (such as hydrofluoric acid, sodium fluoride
Deng) sewage of the industries such as manufacturing enterprise, brick/ceramic/glass manufacturing enterprise, fluoro-containing pesticide enterprise, coal chemical industry, coking industry
Middle fluoride ion removing, specifically a kind of high performance agent for removing fluorin and the application in industrial wastewater.
Background technique
Fluorine is electronegativity in the periodic table of elements, the strongest element of reactivity, is also lived just because of the high reaction of fluorine element
Property, cannot exist in nature with simple substance form.Fluorine nature mainly with inorganic fluorine (such as fluorine-containing mineral, free fluorine from
Son etc.) and the presence of Organic fluoride (such as freon) form.In earth geological environment, using inorganic fluorine as Main Morphology.
There are three the natural source of fluorine is main, first is that the weathering of fluorine-containing mineral (such as fluor-apatite, fluorite, ice crystal)；Two
It is the gas containing hydrogen fluoride that volcanic eruption is discharged into air；Third is that marine aerosol, it is estimated that can produce 20,000 tons every year.
Wherein, one, two sources are total generates ten thousand tons of about 6-600 every year.
In water body, as water body pH and relatively low hardness, inorganic fluorine element often exists in the form of fluorine ion.Cause
This, compared to the aquatile lived in hard water or seawater, the aquatile in soft water is more vulnerable to the influence of fluorine ion.
The fluoride ion concentration levels of surface water and geographical location and the distance dependent apart from emission source, unpolluted water
Bulk concentration is substantially between 0.01-0.3 mg/L, and concentration is substantially between 1.2-1.5 mg/L in seawater；Underground heat and volcano
Activity will increase fluorine ions in water body concentration (concentration can reach 25-50 mg/L in such as hot spring)
Mankind's activity equally will increase fluoride ion concentration levels in surface water.Such as there is case in multiple countries, close to electrolysis
In the river of aluminium manufacturer, fluorinion concentration can reach nearly ten times of local river fluorine ion background values；And in phosphate fertilizer plants, fluorine
Related chemical products (such as hydrofluoric acid, sodium fluoride) manufacturing enterprise, brick/ceramic/glass manufacturing enterprise, fluoro-containing pesticide largely use
The surrounding waters such as farmland even can achieve hundred times of local background values or more；The discharge of fluorine-containing municipal wastewater can make water body fluorine
Ion concentration reaches five times of background values or more.
Fluorine ions in water body excessive concentration can generate toxicity to algae and water plant；Can aquatic invertebrate with
And it is constantly enriched in Fish, while toxic effect is generated to aquatic invertebrate and fish；The ecological balance can be generated
It influences.In addition, a large amount of fluorine ions can be enriched in human body by processes such as drinking water, food chains, then cause related side effects.
It can effectively prevent the generation of decayed tooth when fluorinion concentration is below a certain concentration, show profitability；And fluorine ion
Concentration be more than a certain concentration when will show a large amount of side effects, as osteoporosis, fluorosis of bone, arthritis, cancer, sterility,
Cerebral injury, Alzheimer's disease, thyroid disease etc..
Therefore, the World Health Organization (WHO) in 2004 suggests that fluoride ion in drinking water maximum concentration is 1.5 mg/L；I
State's standards for drinking water quality (GB 5749-2006) to fluorinion concentration require it is more harsh, concentration must 1 mg/L with
Under, currently, the method for relatively effective removal fluorinion in waste water has ion-exchange, embrane method, absorption method, chemical method
Deng.Ion-exchange is suitable for that water is small, low concentration wastewater, and when handling big yield, high-concentration fluorine-containing waste water, no matter from
All do not have advantage in terms of managing cost and operational efficiency；Embrane method such as nanofiltration, reverse osmosis, electrodialysis etc. are innovated technologies, although processing
Effect is preferable, but higher cost, simultaneously need higher operational management experience, may often go wrong in operation, and its
Maximum problem is that the concentrated water generated also needs to handle；Absorption method is to utilize high-specific surface area adsorbent such as active carbon, clay
Deng, be only applicable to low concentration fluoride waste, to big yield, high-concentration waste water is same does not have economy and operability；Mesh
Before, all not fully up to expectations, the dosage of chemical agent on the market such as activated alumina, aluminium salt molysite, silicate gel and other effects
Water outlet is also unstable while big.
Summary of the invention
A kind of application technical problem to be solved by the invention is to provide high performance agent for removing fluorin and in industrial wastewater, with
Solve defect existing in the prior art.
The technical scheme to solve the above technical problems is that
A kind of high performance agent for removing fluorin contains 3-10 parts of organic polymer cationic polymer and 5-30 parts of nanometer according to poidometer
Ferrosilite polymer, by the organic polymer cationic polymer of above-mentioned parts by weight and nanometer ferrosilite polymer at 60-80 DEG C
Under the conditions of stirring, be uniformly mixed, mixing time be 30 minutes；
Wherein, the organic polymer cationic polymer is the end high algebra dendritic of amido ethylenediamine core, is passed through
Following methods are prepared,
1) the low algebra dendritic of terminal double bond ethylenediamine core is made:
Methanol is added in the round-bottomed flask with stirring, reflux condensing tube and thermometer, control reaction temperature is 25 DEG C, 30
DEG C, 35 DEG C or 45 DEG C, under nitrogen protection and stirring condition, trimethylolpropane trimethacrylate is first added, then second two is added dropwise
The methanol solution of amine；
Control reaction temperature simultaneously reacts a period of time, which is set as 12h, 18h, 30h or 36h, then has light amber
Viscous product is precipitated, and using separatory funnel by product and separating methanol, and is washed with methanol, is dried in vacuo, obtains terminal double bond second
The low algebra dendritic of diamines core, weighing, calculated yield；
2) the end high algebra dendritic of amido ethylenediamine core is made:
By methanol be added with stirring, reflux condensing tube and thermometer round-bottomed flask in, be first added dropwise ethylenediamine, then by terminal double bond
Low algebra dendritic be added, be uniformly mixed, control thermotonus for a period of time, the temperature be 25 DEG C, 35 DEG C or
45 DEG C, reaction time 10h, 18h, for 24 hours or 36h.
Vacuum distillation removes methanol and extra ethylenediamine at 60 DEG C, obtains light amber viscous product, as end amido
The high algebra dendritic of ethylenediamine core, weighing, calculated yield；
Wherein, the nanometer ferrosilite polymer is prepared with the following method,
At room temperature, solid material ferrous sulfate monohydrate and sodium metasilicate are stirred, is uniformly mixed, it is dense that quality is then added
The mixed liquor of the sulfuric acid of the nitric acid and mass concentration 93% of degree 98%, is stirred, and the heat released in reaction process can make reaction temperature
It constantly increasing and is generated with NO, reaction is accelerated to carry out, the reaction time is 24-48 hours, and reaction temperature is 0-90 DEG C, thus
The oxidation occurred between raw material, polymerization reaction are completed, after fully reacting, reactant is taken out and is crushed, places 24-48 hours, obtains
To nanometer ferrosilite polymer.
More specifically, when producing nanometer ferrosilite polymer, ferrous sulfate monohydrate, sodium metasilicate, sulfuric acid, nitric acid mole
Than being 1: (O.017-0.114): (0.330-0.413): (1.349-1.478)；Ferrous sulfate monohydrate therein is by ferrous sulfate
Seven crystallines are dried；
The invention also includes a kind of application of high performance agent for removing fluorin in industrial wastewater, and the high performance agent for removing fluorin is applied at sewage
During reason, the high performance agent for removing fluorin is put into coagulating basin, water outlet fluorinion concentration can be reduced to 1 mg/L or less.
The beneficial effects of the present invention are: the high performance agent for removing fluorin when being applied to sewage treatment, is guaranteeing sludge dewatering efficiency
Under the premise of (moisture content is down to 45%), the content of chloride ion, iron and polyacrylamide in filter cake and filtrate can be effectively reduced,
Meets the needs of subsequent drying and earthing landfill.
Detailed description of the invention
Fig. 1 is the low algebra dendritic synthesis process figure of terminal double bond ethylenediamine core；
Fig. 2 is the end high algebra dendritic synthesis process figure of amido ethylenediamine core；
Fig. 3 is coal chemical industrial waste water process flow diagram；
Fig. 4 is electric power plant circulating water sewerage in-situ processing process flow chart；
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in Figure 1, a kind of high performance agent for removing fluorin, 3-10 parts of organic polymer cationic polymer is contained according to poidometer
Nanometer ferrosilite polymer with 5-30 parts, the organic polymer cationic polymer of above-mentioned parts by weight and nanometer ferrosilite are gathered
It closes object to stir, be uniformly mixed under the conditions of 60-80 DEG C, mixing time is 30 minutes；
Wherein, the organic polymer cationic polymer is the end high algebra dendritic of amido ethylenediamine core, is passed through
Following methods are prepared,
1) the low algebra dendritic of terminal double bond ethylenediamine core is made:
Methanol is added in the round-bottomed flask with stirring, reflux condensing tube and thermometer, control reaction temperature is 25 DEG C, 30
DEG C, 35 DEG C or 45 DEG C, under nitrogen protection and stirring condition, trimethylolpropane trimethacrylate is first added, then second two is added dropwise
The methanol solution of amine；
Control reaction temperature simultaneously reacts a period of time, which is set as 12h, 18h, 30h or 36h, then has light amber
Viscous product is precipitated, and using separatory funnel by product and separating methanol, and is washed with methanol, is dried in vacuo, obtains terminal double bond second
The low algebra dendritic of diamines core, weighing, calculated yield；
2) the end high algebra dendritic of amido ethylenediamine core is made:
By methanol be added with stirring, reflux condensing tube and thermometer round-bottomed flask in, be first added dropwise ethylenediamine, then by terminal double bond
Low algebra dendritic be added, be uniformly mixed, control thermotonus for a period of time, the temperature be 25 DEG C, 35 DEG C or
45 DEG C, reaction time 10h, 18h, for 24 hours or 36h.
Vacuum distillation removes methanol and extra ethylenediamine at 60 DEG C, obtains light amber viscous product, as end amido
The high algebra dendritic of ethylenediamine core, weighing, calculated yield；
Wherein, the nanometer ferrosilite polymer is prepared with the following method,
At room temperature, solid material ferrous sulfate monohydrate and sodium metasilicate are stirred, is uniformly mixed, it is dense that quality is then added
The mixed liquor of the sulfuric acid of the nitric acid and mass concentration 93% of degree 98%, is stirred, and the heat released in reaction process can make reaction temperature
It constantly increasing and is generated with NO, reaction is accelerated to carry out, the reaction time is 24-48 hours, and reaction temperature is 0-90 DEG C, thus
The oxidation occurred between raw material, polymerization reaction are completed, after fully reacting, reactant is taken out and is crushed, places 24-48 hours, obtains
To nanometer ferrosilite polymer.
More specifically, when producing nanometer ferrosilite polymer, ferrous sulfate monohydrate, sodium metasilicate, sulfuric acid, nitric acid mole
Than being 1: (O.017-0.114): (0.330-0.413): (1.349-1.478)；Ferrous sulfate monohydrate therein is by ferrous sulfate
Seven crystallines are dried；
Illustrate the low algebra dendritic of terminal double bond ethylenediamine core and end amido respectively below by different specific embodiments
Preparation of the high algebra dendritic of ethylenediamine core at a temperature of different material feed ratio, differential responses time and differential responses
Process.
Specific embodiment 1
The low algebra dendritic of terminal double bond ethylenediamine core is produced under different material feed ratio:
Take 7 four-neck flasks, weigh 118.40 g, 124.32 g, 133.20 g, 139.12 g, 148.00 g, 162.8 g,
177.6 g, 207.2 g methanol are added in the round-bottomed flask with stirring, reflux condensing tube and thermometer, control reaction temperature 25
DEG C, under nitrogen protection and stirring condition, equivalent trimethylolpropane trimethacrylate is first added respectively, then 12 g second two are added dropwise
The methanol solution (50%) of amine.Drop finishes, and controls 25 DEG C of reaction temperature and reacts for 24 hours, then has the analysis of light amber viscous product
Out, it using separatory funnel by product and separating methanol, and is washed with methanol, is dried in vacuo, obtains terminal double bond ethylenediamine core low generation
Number dendritic；
Specific embodiment 2
The low algebra dendritic of terminal double bond ethylenediamine core is produced under the differential responses time:
4 four-neck flasks are taken, 133.20 g methanol is weighed and the round-bottomed flask with stirring, reflux condensing tube and thermometer is added
In, 25 DEG C of reaction temperature are controlled, under nitrogen protection and stirring condition, equivalent trimethylolpropane tris acrylic acid is first added respectively
Ester, then the methanol solution (50%) of 12 g ethylenediamines is added dropwise.Drop finishes, and controls 25 DEG C of reaction temperature, the reaction time is separately positioned on
Then 12h, 18h, 30h, 36h have the precipitation of light amber viscous product, using separatory funnel by product and separating methanol, and
It is washed with methanol, is dried in vacuo, obtains the low algebra dendritic of terminal double bond ethylenediamine core.
Specific embodiment 3
The low algebra dendritic of terminal double bond ethylenediamine core is produced at a temperature of differential responses:
3 four-neck flasks are taken, 133.20 g methanol is weighed and the round-bottomed flask with stirring, reflux condensing tube and thermometer is added
In, under nitrogen protection and stirring condition, equivalent trimethylolpropane trimethacrylate is first added respectively, then 12 g second two are added dropwise
The methanol solution (50%) of amine.Drop finishes, and temperature setting observes color change in 30 DEG C, 35 DEG C, 45 DEG C in reaction process.
Specific embodiment 4
The high algebra dendritic of manufacturing side amido ethylenediamine core under different material feed ratio:
4 four-neck flasks are taken, 24 g, 36 g, 48 g, 60 g methanol is weighed and is added with stirring, reflux condensing tube and thermometer
Round-bottomed flask in, control 25 DEG C of reaction temperature, under nitrogen protection and stirring condition, respectively first be added equivalent ethylenediamine, then
The methanol solution (50%) of the low algebra dendritic of 62.2 g terminal double bond ethylenediamine cores is added dropwise.Drop finishes, and 25 DEG C of control temperature is anti-
It should for 24 hours.Then, at 60 DEG C vacuum distillation remove methanol and it is extra be ethylenediamine, obtain light amber viscous product, as hold
The high algebra dendritic of amido ethylenediamine core.
Specific embodiment 5
The high algebra dendritic of manufacturing side amido ethylenediamine core at a temperature of differential responses:
3 four-neck flasks are taken, 48 g methanol is weighed and is added in the round-bottomed flask with stirring, reflux condensing tube and thermometer, control
25 DEG C of reaction temperature processed, under nitrogen protection and stirring condition, equivalent ethylenediamine is first added respectively, then 62.2 g terminal double bonds are added dropwise
The methanol solution (50%) of the low algebra dendritic of ethylenediamine core.Drop finishes, and controls 25 DEG C of temperature, reaction time setting exists
10h,18h,36h.Then, at 60 DEG C vacuum distillation remove methanol and it is extra be ethylenediamine, obtain light amber viscous product,
As hold the high algebra dendritic of amido ethylenediamine core.
Specific embodiment 6
The high algebra dendritic of manufacturing side amido ethylenediamine core under the differential responses time:
2 four-neck flasks are taken, 48 g methanol is weighed and is added in the round-bottomed flask with stirring, reflux condensing tube and thermometer,
Under nitrogen protection and stirring condition, equivalent ethylenediamine is first added respectively, then the low algebra tree of 62.2 g terminal double bond ethylenediamine cores is added dropwise
The methanol solution (50%) of dendritic polymer.Drop finishes, and temperature setting is in 35 DEG C, 45 DEG C, and the reaction time is for 24 hours.Then, at 60 DEG C
Vacuum distillation remove methanol and it is extra be ethylenediamine, obtain light amber viscous product, as end the high algebra of amido ethylenediamine core
Dendritic.
Specific embodiment 7
Nanometer ferrosilite polymer preparation: at room temperature, by solid material ferrous sulfate monohydrate (FeSO4H2O) with
Sodium metasilicate (NaSiO3) stirring, is uniformly mixed, and nitric acid (such as mass concentration 98%) and sulfuric acid (such as mass concentration is then added
93%) mixed liquor stirs, and the heat released in reaction process can make reaction temperature constantly increase and generate with NO, accelerates instead
It should carry out, the reaction time is 24-48 hours, and reaction temperature is 0-90 DEG C, so that the oxidation occurred between completing raw material, polymerization are instead
It answers.After fully reacting, reactant is taken out and crushed, placed 24-48 hours, obtain solid ferric sulfate of polymerized silica product.
Wherein, the molar ratio of ferrous sulfate (a water hydrate), sodium metasilicate, sulfuric acid, nitric acid are as follows: 1: (O.017-0.114):
(0.330-0.413):(1.349-1.478) ；One water hydrate of ferrous sulfate be by seven crystalline of ferrous sulfate drying and
?.
Product index are as follows: total iron: 19-22%: basicity: 8-25%；Silica: 0.5-3%；Insoluble matter is lower than 1%,
1-500 microns of grain diameter.
By organic polymer cationic polymer made from above-mentioned different embodiments and nanometer ferrosilite polymer according to one
Fixed ratio uniformly mixes at 60-80 DEG C, and mixing time control obtains high performance agent for removing fluorin of the invention in 30min, wherein
The content of organic high molecular polymer: 3%-10%；The content of nanometer ferrosilite polymer: 5%-30%.
The invention also includes a kind of application of high performance agent for removing fluorin in industrial wastewater, and the high performance agent for removing fluorin is applied to dirt
In water treatment procedure, the high performance agent for removing fluorin is put into coagulating basin, can will water outlet fluorinion concentration be reduced to 1 mg/L with
Under.
Its effect is illustrated below by concrete case:
Specific embodiment 8:
For coal chemical industrial waste water process flow as shown in Fig. 3, major part is pretreatment (level-one coagulating sedimentation), biochemical treatment, two
Grade coagulation advanced treating, sewerage disposing etc..At the scene on existing Process ba- sis, in pretreatment (level-one coagulation) and two-stage coagulation
Place adds WS-803 defluorinating agent respectively in two steps, is added medicament while scheme purpose is to reach owner's processing requirement step by step
Cost minimizes.The program is not necessarily to the new construction of structures of owner, and medicine system substantially meets dosing demand at present.
When field pilot test, it is 1 mg/L that owner, which requires water outlet fluorinion concentration limit value, can be met under the conditions of certain dosage
Index request, pilot scale success.Currently, owner largely purchases WS-803 defluorinating agent on the basis of pilot scale early period debugging is successful,
Into the commencement of commercial operation fluorine removal stage.WS-803 defluorinating agent dosage and effluent index such as table 1 and table 2 during carrying out practically
It is shown.
1 pilot plant test result of table (executes standard < 1 mg/L)
| Serial number | Water inlet fluorinion concentration mg/L | Chemical feeding points | WS-803 dosage ppm | It is discharged fluorinion concentration mg/L |
| 1 | 30-50 | Level-one coagulation | 3000 | 3-5 |
| 2 | 3-5 | Two-stage coagulation | 2600 | <1 |
2 commencement of commercial operation phase results of table (execute standard < 1 mg/L)
| Serial number | Water inlet fluorinion concentration mg/L | Chemical feeding points | WS-803 dosage ppm | It is discharged fluorinion concentration mg/L |
| 1 | 20-55 | Level-one coagulation | 2650-3980 | 4-8 |
| 2 | 4-8 | Two-stage coagulation | 600-2000 | <1 |
It can be seen that from table 1-2 and can satisfy owner when WS-803 added amount of chemical is appropriate for water outlet fluorinion concentration
It is required that.Illustrate that WS-803 defluorinating agent adds scheme in conjunction with substep and can solve the problems, such as fluorine ion qualified discharge very well.
Specific embodiment 9:
Certain electric power plant circulating water sewerage, 60000 sides of water/day, content of fluoride ion 2-5ppm, target content of fluoride ion are near
Outlet within 1.5ppm, site technique process as shown in figure 4,
According to the process flow chart at scene, prior art, without obvious removal effect, is not able to satisfy processing requirement to fluorine ion, will mix
Lime/the Polyferric Sulfate in solidifying pond replaces with defluorinating agent WS-803# medicament, and in-situ processing effect is as shown in the table:
3 in-situ processing result data of table
| Serial number | Defluorinating agent dosage (mg/L) | Fluorine content measurement (mg/L) in water |
| 1 | 0 | 2.48 |
| 2 | 100 | 1.74 |
| 3 | 200 | 1.38 |
| 4 | 300 | 1.17 |
Conclusion: showing from above-mentioned experimental result, and defluorinating agent can have an apparent removal effect to fluorine in water, dosage 300ppm,
The removal rate of fluorine can reach 52.8%, can satisfy surface water four, five class water quality standards (1.5 ppm of fluorine content <)
It can be seen that the present invention under the premise of guaranteeing sludge dewatering efficiency (moisture content is down to 45%), can be effectively reduced filter cake and
The content of chloride ion, iron and polyacrylamide in filtrate meets the needs of subsequent drying and earthing landfill.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of high performance agent for removing fluorin, it is characterised in that:
Contain 3-10 parts of organic polymer cationic polymer and 5-30 parts of nanometer ferrosilite polymer according to poidometer, it will
The organic polymer cationic polymer and nanometer ferrosilite polymer of above-mentioned parts by weight are stirred under the conditions of 60-80 DEG C, are mixed
Uniformly, mixing time is 30 minutes；
Wherein, the organic polymer cationic polymer is the end high algebra dendritic of amido ethylenediamine core, is passed through
Following methods are prepared,
1) the low algebra dendritic of terminal double bond ethylenediamine core is made:
Methanol is added in the round-bottomed flask with stirring, reflux condensing tube and thermometer, control reaction temperature is 25 DEG C, 30
DEG C, 35 DEG C or 45 DEG C, under nitrogen protection and stirring condition, trimethylolpropane trimethacrylate is first added, then second two is added dropwise
The methanol solution of amine；
Control reaction temperature simultaneously reacts a period of time, which is set as 12h, 18h, 30h or 36h, then has light amber
Viscous product is precipitated, and using separatory funnel by product and separating methanol, and is washed with methanol, is dried in vacuo, obtains terminal double bond second
The low algebra dendritic of diamines core, weighing, calculated yield；
2) the end high algebra dendritic of amido ethylenediamine core is made:
By methanol be added with stirring, reflux condensing tube and thermometer round-bottomed flask in, be first added dropwise ethylenediamine, then by terminal double bond
Low algebra dendritic be added, be uniformly mixed, control thermotonus for a period of time, the temperature be 25 DEG C, 35 DEG C or
45 DEG C, reaction time 10h, 18h, for 24 hours or 36h.
Vacuum distillation removes methanol and extra ethylenediamine at 60 DEG C, obtains light amber viscous product, as end amido second two
The high algebra dendritic of amine core, weighing, calculated yield；
Wherein, the nanometer ferrosilite polymer is prepared with the following method,
At room temperature, solid material ferrous sulfate monohydrate and sodium metasilicate are stirred, is uniformly mixed, it is dense that quality is then added
The mixed liquor of the sulfuric acid of the nitric acid and mass concentration 93% of degree 98%, is stirred, and the heat released in reaction process can make reaction temperature
It constantly increasing and is generated with NO, reaction is accelerated to carry out, the reaction time is 24-48 hours, and reaction temperature is 0-90 DEG C, thus
The oxidation occurred between raw material, polymerization reaction are completed, after fully reacting, reactant is taken out and is crushed, places 24-48 hours, obtains
To nanometer ferrosilite polymer.
2. a kind of high performance agent for removing fluorin according to claim 1, it is characterised in that: when producing nanometer ferrosilite polymer,
Ferrous sulfate monohydrate, sodium metasilicate, sulfuric acid, nitric acid molar ratio be 1: (O.017-0.114): (0.330-0.413): (1.349-
1.478)；Ferrous sulfate monohydrate therein is dried by seven crystalline of ferrous sulfate.
3. a kind of application of high performance agent for removing fluorin in industrial wastewater, it is characterised in that: the high performance agent for removing fluorin is applied to sewage
In treatment process, the high performance agent for removing fluorin is put into coagulating basin, water outlet fluorinion concentration can be reduced to 1 mg/L or less.
Priority Applications (1)
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| CN201910319768.8A CN109879394A (en) | 2019-04-19 | 2019-04-19 | A kind of high performance agent for removing fluorin and the application in industrial wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910319768.8A CN109879394A (en) | 2019-04-19 | 2019-04-19 | A kind of high performance agent for removing fluorin and the application in industrial wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112850867A (en) * | 2021-01-22 | 2021-05-28 | 北京华德创业环保设备有限公司 | Deep defluorination medicament and preparation method thereof |
| CN113184969A (en) * | 2021-05-19 | 2021-07-30 | 江苏茂济环保科技有限公司 | Fluorine-containing wastewater advanced treatment agent and preparation method thereof |
-
2019
- 2019-04-19 CN CN201910319768.8A patent/CN109879394A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112850867A (en) * | 2021-01-22 | 2021-05-28 | 北京华德创业环保设备有限公司 | Deep defluorination medicament and preparation method thereof |
| CN113184969A (en) * | 2021-05-19 | 2021-07-30 | 江苏茂济环保科技有限公司 | Fluorine-containing wastewater advanced treatment agent and preparation method thereof |
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Application publication date: 20190614 |