CN108408857A - Composite inorganic agglutinant and preparation method thereof, application method and purposes - Google Patents
Composite inorganic agglutinant and preparation method thereof, application method and purposes Download PDFInfo
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- CN108408857A CN108408857A CN201810349698.6A CN201810349698A CN108408857A CN 108408857 A CN108408857 A CN 108408857A CN 201810349698 A CN201810349698 A CN 201810349698A CN 108408857 A CN108408857 A CN 108408857A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/103—Arsenic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Abstract
The present invention provides a kind of composite inorganic agglutinant and preparation method thereof, application method and purposes, are related to technical field of waste water processing.Composite inorganic agglutinant includes the following raw material component：Volcanic ash, ferric-polysilicate, aluminium polychloride, bentonite, alkali lignin.Composite inorganic agglutinant provided by the invention, under the mutual synergistic effect of each raw material component, it is big to form floc particle, density is big, and agglutinating reaction speed is fast, shortens processing time, energy trap heavy metals ion, there is good effect to the removal of fluorine, phosphorus, arsenic, oil, and there is certain cleaning to act on organic and inorganic wastes, is green flocculant.The preparation method of composite inorganic agglutinant provided by the invention, raw material is simple, is easy to get, and cheap, at low cost, preparation process is simple, easy to operate, is suitable for large-scale production.The application method of composite inorganic agglutinant provided by the invention securely and reliably convenient for grasping, will not cause secondary pollution to water body.
Description
Technical field
The present invention relates to technical field of waste water processing, more particularly, to a kind of composite inorganic agglutinant and preparation method thereof,
Application method and purposes.
Background technology
Water treatment flocculant is current water and wastewater industry, pollution control and water-saving reuse purified treatment field of engineering technology with material
In most widely used, the maximum specialities of dosage.Water treatment agent belongs to high-tech content, and high value added product, it is very
Decide simplified innovation and development, facility and the technological process of water technology and equipment, operating cost and water quality in big degree
Depuration quality.Therefore, novel, efficient water treatment agent and material are given priority in water process environmental protection industry technical field always
Pillar industry and water and wastewater industry and water pollution control engineering technology and equipment innovation and development basic industry.
Current preference Development of Novel, efficient, safe, economic water treatment agent industry, strengthen the intensity of scientific and technological innovation are accelerated
China's water treatment agent and quality of materials are improved, for meeting the needs of water treatment engineering technology, it is ensured that the sustainable profit of water resource
With to environment, sustainable economic development with important strategic importance.
The developing direction of novel environment-friendly water treatment agent, innovation is the motive power of water treatment agent sustainable development, green
Color is the direction of following water treatment agent development, the low-phosphorous, non-nitrogen that develops that suitable China environmental protection requires, can biology
Degradation, nontoxic, inexpensive green water treatment agent, the direction that will develop as China's future water treatment agent.
Waste water outside, usually contains the weight such as copper, chromium, lead, mercury, cadmium in addition to high concentrtion, high SS (suspended matter in water quality) is presented
Metal ion or its complex ion.Property is stablized in a natural environment for this kind of heavy metal ion or its complex ion, can be in vivo
It accumulates, the pollutants such as fluorine, arsenic, oils in waste water, the influence to ecological environment is also very serious.
Inorganic flocculant refers generally to conventional aluminum, iron salt compounds；Inorganic polymer flocculant then refers to the hydrolysis of aluminium, molysite
Intermediate product, i.e. hydroxyl polymeric ion；Some other kind, such as calcium salt, magnesium salts, activated silicic acid mainly as neutralizer or help
Solidifying agent uses.Tradition inorganic flocculant is just gradually replaced by inorganic polymer flocculant at present, is sold in national coagulant market
In the amount of selling, traditional inorganic flocculant only accounts for about 20%, and inorganic polymer class accounts for about 80% or more.Wherein, aluminium polychloride is about
65%-70%, bodied ferric sulfate 6%-8% are accounted for, some other kind accounts for about 2%~5%.
Traditional inorganic agglutinant and inorganic polymer agglutinant, this two classes flocculant is because of cheap, easily manufactured, pole
Soluble easily in water, hydrolysis rate is fast, is used widely.But due to the hydrate light weight formed after tradition aluminium salt, iron salt hydrolysis,
Particle is small, and effect is poor in low turbidity water environment；Inorganic polymer flocculant has a single function, the formation condition and water ring of hydrate
The pH value in border has apparent correlation.Thus has the shortcomings that the following aspects：(1) alum due to aluminium salt and molysite inherently
The deficiencies of small, precipitation is slow is spent, occurs running flower；(2) for the heavy metal contaminants in sewage, fluorine, arsenic, phosphorus, oily poor removal effect.
In consideration of it, special propose the present invention.
Invention content
The purpose of the present invention is to provide a kind of composite inorganic agglutinants, to alleviate agglutinating reaction existing in the prior art
Speed is slow, to technical problems such as heavy metal contaminants, fluorine, arsenic, phosphorus, oily poor removal effects in sewage.
Composite inorganic agglutinant provided by the invention, including the following raw material component：Volcanic ash, ferric-polysilicate, polyaluminium
Aluminium, bentonite, alkali lignin.
Preferably, meter includes the following raw material component in parts by weight：1-8 parts of volcanic ash, 70-100 parts of ferric-polysilicate, polymerization
70-100 parts of aluminium chloride, 1-10 parts of bentonite, 3-18 parts of alkali lignin.
Preferably, meter includes the following raw material component in parts by weight：2-7 parts of volcanic ash, 75-95 parts of ferric-polysilicate, polymerization
75-95 parts of aluminium chloride, 2-9 parts of bentonite, 5-16 parts of alkali lignin.
Preferably, meter includes the following raw material component in parts by weight：5 parts of volcanic ash, 85 parts of ferric-polysilicate, aluminium polychloride
85 parts, 6 parts of bentonite, 12 parts of alkali lignin.
Preferably, meter further includes 5-20 parts of alkaline metal oxide in parts by weight.
Preferably, described alkaline metal oxide 8-18 parts.
Preferably, 12 parts of the alkaline metal oxide.
Preferably, the alkaline metal oxide in activated magnesia, activated alumina or active calcium oxide extremely
Few one kind.
Preferably, the alkaline metal oxide is activated magnesia.
The present invention also provides the preparation methods of above-mentioned composite inorganic agglutinant, include the following steps：By volcanic ash, poly- silicon
Sour iron, aluminium polychloride, bentonite, alkali lignin and the mixing of optional alkaline metal oxide are to get composite inorganic agglutinant.
Preferably, before the mixing of volcanic ash, ferric-polysilicate, aluminium polychloride, bentonite and alkali lignin, first by volcanic ash
It grinds to 200-400 mesh.
Preferably, volcanic ash, ferric-polysilicate, aluminium polychloride, bentonite, alkali lignin and basic anhydride are mixed it
Before, first alkali lignin and alkaline metal oxide are ground to 200-400 mesh.
The present invention also provides the application of above-mentioned composite inorganic agglutinant in the treatment of waste water.
Preferably, the waste water includes Chinese traditional medicine wastewater.
The present invention also provides the application methods of above-mentioned composite inorganic agglutinant, include the following steps：It is added into waste water
The aqueous solution of the composite inorganic agglutinant, is discharged after separation.
Preferably, a concentration of 5%-20% of the aqueous solution of the inorganic agglutinant.
Preferably, the separation includes quickly stirring the waste water that composite inorganic agglutinant is added, static, takes out supernatant
Liquid.
Preferably, the quick mixing time is 2-10min；The quiescent time is 5-20min.
Composite inorganic agglutinant provided by the invention has the advantages that：
Composite inorganic agglutinant provided by the invention forms floc particle under the mutual synergistic effect of each raw material component
Greatly, density is big, and agglutinating reaction speed is fast, shortens processing time, energy trap heavy metals ion, equal to the removal of fluorine, phosphorus, arsenic, oil
There is good effect, and there is certain cleaning to act on organic and inorganic wastes, is green flocculant.
The preparation method of composite inorganic agglutinant provided by the invention, raw material is simple, is easy to get, cheap, at low cost, system
It is standby simple for process, easy to operate, it is suitable for large-scale production.
The application method of composite inorganic agglutinant provided by the invention convenient for grasping, will not securely and reliably cause water body
Secondary pollution.
Specific implementation mode
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
It is explained, composite inorganic agglutinant of the present invention is DSIC, refers to diffusion dissolution inorganic agglutinant (i.e.
The abbreviation of Disperse Solubleness Inorganic Coagulant.)
According to an aspect of the present invention, the present invention provides a kind of composite inorganic agglutinants, including the following raw material component：
Volcanic ash, ferric-polysilicate, aluminium polychloride, bentonite, alkali lignin.
Wherein, on the one hand volcanic ash has adsorption function, can adsorb heavy metal ion micro in waste water；On the other hand
Under stiring can be in conjunction on the surface of oil emulsion, oil droplet becomes larger, final so that oil and water separate.Itself has alkalinity,
Adjustable pH.
Ferric-polysilicate is a kind of novel inorganic polymer coagulant, it is prepared by iron ion is introduced into active silicic acid
Composite coagulant.Ferric-polysilicate hydrolyzes to form iron hydroxide, and molecular conformation is in reticular structure, and there is the absorption of stronger bridge formation to make
With playing the role of net and catch, in hydrolytic process, with the physical and chemical processes such as agglomerate, adsorb and precipitate.
Aluminium polychloride, which is easy to form coprecipitated object under the conditions of fluoride and oxide are common existing, to be settled.
Bentonite has adsorption function, can effectively remove oil.
Alkali lignin is organic agglutinant, and waste water forms small alumen ustum under the action of ferric-polysilicate and aluminium polychloride, then
Small alumen ustum is become into big alumen ustum, and rapid precipitation by the effect of alkali lignin.
Main raw material(s) of the present invention be natural inorganic mineral composite flocculation agent, using molysite, aluminium salt compression double electric layer,
Absorption, charge neutrality, the adsorption bridging for cohering bridge formation, sweep coagulation and organic polymer coargulator, absorption charge neutrality, polymer-
The dissipation coacervation effect that surface particles complex compound is formed；Matched using complex group to realize the multi-functional practice of inorganic flocculating agent
One multiple-effect, it is wide to pH value applicable elements；It is big to form floc particle, density has good result to low turbidity low temperature environment greatly.
The mechanism of action of composite inorganic wadding collection agent provided by the invention is as follows：
(1) dephosphorization：The Fe (OH) that composite flocculation agent generates within the scope of pH 5-103PO is adsorbed in the form of coordination3 4-。
(2) removing heavy metals：After flocculant hydration the-OH that generates in the form of coordinate bond or in the form of covalent bond with metal from
Son chelates, and forms the minimum metallo-chelate of solubility stable, with reticular structure.
(3) arsenic removal：Molysite is added in arsenic-containing water body, hydrolyzes the Fe (OH) of generation2With Fe (OH)3It can either occur with arsenic anti-
It answers, and the arsenic in energy adsorbent solution, and coprecipitated reaction occurs, generate FeAsO3, FeAsO4, Fe2As2O5, Fe (AsO2)3,
Be conducive to the sedimentation of arsenic in the presence of Ca, Mg.
(4) fluorine removal：Fluorine ion in waste water becomes calcium fluoride precipitate with calcium binding, and remaining fluorine is inhaled by volcanic ash
It is attached.
(5) oil removing：Volcanic ash has larger specific surface area and adsorptivity, destroys emulsification oil meter face under vigorous stirring
Active agent layer keeps the small oil droplet in water exposed, and oil droplet is by its adsorption, to make oil emulsion be demulsified, adsorbs the zeolite of oil droplet
Become the core that alumen ustum is grown up and assembled in flocculation process, then is carried out in alumen ustum infall process, reaches oil removing
Purpose.
Composite inorganic agglutinant provided by the invention forms floc particle under the mutual synergistic effect of each raw material component
Greatly, density is big, and agglutinating reaction speed is fast, shortens processing time, energy trap heavy metals ion, equal to the removal of fluorine, phosphorus, arsenic, oil
There is good effect, and there is certain cleaning to act on organic and inorganic wastes, is green flocculant.
In one preferred embodiment, composite inorganic agglutinant, meter includes the following raw material component in parts by weight：Fire
Ash 1-8 parts of mountain, 70-100 parts of ferric-polysilicate, 70-100 parts of aluminium polychloride, 1-10 parts of bentonite, 3-18 parts of alkali lignin.
Wherein, volcanic ash for example can be, but be not limited to 1 part, 2 parts, 3 parts, 5 parts, 6 parts, 7 parts or 8 parts；Ferric-polysilicate
Such as can be, but it is not limited to 70 parts, 75 parts, 80 parts, 85 parts, 90 parts, 95 parts or 100 parts；Aluminium polychloride for example can be with
For, but it is not limited to 70 parts, 75 parts, 80 parts, 85 parts, 90 parts, 95 parts or 100 parts；Bentonite for example can be, but be not limited to 1 part,
2 parts, 4 parts, 6 parts, 8 parts, 9 parts or 10 parts；Alkali lignin for example can be, but be not limited to 3 parts, 5 parts, 9 parts, 12 parts, 14 parts, 16 parts
Or 18 parts.
In one preferred embodiment, composite inorganic agglutinant, in parts by weight meter further include alkalinous metal oxidation
5-20 parts of object.
Wherein, alkaline metal oxide for example can be, but be not limited to 5 parts, 8 parts, 10 parts, 12 parts, 15 parts, 18 parts, 20
Part.
In one preferred embodiment, alkaline metal oxide is selected from activated magnesia, activated alumina or activity
At least one of calcium oxide.
In a preferred embodiment, alkaline metal oxide is activated magnesia.
The present invention is under the synergistic effect of ferric-polysilicate, aluminium polychloride, volcanic ash and alkaline metal oxide, Neng Goujin
One step enhances the removal effect to arsenic.Itself has alkalinity, and pH is adjusted.
According to the second aspect of the invention, the present invention also provides the preparation method of above-mentioned composite inorganic agglutinant, packets
Include following steps：Volcanic ash, ferric-polysilicate, aluminium polychloride, bentonite, alkali lignin and optional alkaline metal oxide are mixed
It closes to get composite inorganic agglutinant.
In one preferred embodiment, mixed in volcanic ash, ferric-polysilicate, aluminium polychloride, bentonite and alkali lignin
Before conjunction, first volcanic ash is ground to 200-400 mesh.
In another preferred embodiment, by volcanic ash, ferric-polysilicate, aluminium polychloride, bentonite, alkali lignin and
Before basic anhydride mixing, first alkali lignin and alkaline metal oxide are ground to 200-400 mesh.
The preparation method of composite inorganic agglutinant provided by the invention, raw material is simple, is easy to get, and preparation process is simple, easily grasps
Make, is suitable for large-scale production.
According to the third aspect of the present invention, in the treatment of waste water the present invention also provides above-mentioned composite inorganic agglutinant
Using.
Preferably, the waste water includes Chinese traditional medicine wastewater.
The present invention also provides the application methods of above-mentioned composite inorganic agglutinant, include the following steps：It is added into waste water
The aqueous solution of the composite inorganic agglutinant, is discharged after separation.
In one preferred embodiment, a concentration of 5%-20% of the aqueous solution of the inorganic agglutinant.
In one preferred embodiment, the separation includes quickly stirring the waste water that composite inorganic agglutinant is added
It mixes, it is static, take out supernatant.
In a preferred embodiment, the quick mixing time is 2-10min；The quiescent time is 5-
20min。
The application method of composite inorganic agglutinant provided by the invention convenient for grasping, will not securely and reliably cause water body
Secondary pollution.
In order to contribute to the clearer understanding present invention, below in conjunction with embodiment and comparative example to the technical side of the present invention
Case is described further.
Embodiment one
A kind of composite inorganic agglutinant is present embodiments provided, meter includes the following raw material component in parts by weight：Volcanic ash 8
Part, 100 parts of ferric-polysilicate, 70 parts of aluminium polychloride, 1 part of bentonite, 18 parts of alkali lignin.
Embodiment two
A kind of composite inorganic agglutinant is present embodiments provided, meter includes the following raw material component in parts by weight：Volcanic ash 1
Part, 70 parts of ferric-polysilicate, 100 parts of aluminium polychloride, 10 parts of bentonite, 3 parts of alkali lignin.
Embodiment three
A kind of composite inorganic agglutinant is present embodiments provided, meter includes the following raw material component in parts by weight：Volcanic ash 5
Part, 85 parts of ferric-polysilicate, 85 parts of aluminium polychloride, 6 parts of bentonite, 12 parts of alkali lignin.
Example IV
A kind of composite inorganic agglutinant is present embodiments provided, meter includes the following raw material component in parts by weight：Volcanic ash 8
Part, 100 parts of ferric-polysilicate, 70 parts of aluminium polychloride, 1 part of bentonite, 18 parts of alkali lignin, 5 parts of activated magnesia.
Embodiment five
A kind of composite inorganic agglutinant is present embodiments provided, meter includes the following raw material component in parts by weight：Volcanic ash 1
Part, 70 parts of ferric-polysilicate, 100 parts of aluminium polychloride, 10 parts of bentonite, 3 parts of alkali lignin, 20 parts of activated magnesia.
Embodiment six
A kind of composite inorganic agglutinant is present embodiments provided, meter includes the following raw material component in parts by weight：Volcanic ash 2
Part, 95 parts of ferric-polysilicate, 75 parts of aluminium polychloride, 9 parts of bentonite, 5 parts of alkali lignin, 8 parts of activated magnesia.
Embodiment seven
A kind of composite inorganic agglutinant is present embodiments provided, meter includes the following raw material component in parts by weight：Volcanic ash 7
Part, 75 parts of ferric-polysilicate, 95 parts of aluminium polychloride, 2 parts of bentonite, 16 parts of alkali lignin, 18 parts of activated magnesia.
Embodiment eight
A kind of composite inorganic agglutinant is present embodiments provided, meter includes the following raw material component in parts by weight：Volcanic ash 5
Part, 85 parts of ferric-polysilicate, 85 parts of aluminium polychloride, 6 parts of bentonite, 12 parts of alkali lignin, 12 parts of activated magnesia.
Comparative example one
This comparative example provides a kind of composite inorganic agglutinant, and meter includes the following raw material component in parts by weight：Volcanic ash
0.5 part, 110 parts of ferric-polysilicate, 60 parts of aluminium polychloride, 15 parts of bentonite, 20 parts of alkali lignin, 3 parts of activated magnesia.
Comparative example two
This comparative example provides a kind of composite inorganic agglutinant, and meter includes the following raw material component in parts by weight：Volcanic ash
10 parts, 60 parts of ferric-polysilicate, 110 parts of aluminium polychloride, 0.5 part of bentonite, 2 parts of alkali lignin, 25 parts of activated magnesia.
Comparative example three
This comparative example provides a kind of composite inorganic agglutinant, and meter includes the following raw material component in parts by weight：Polysilicon acid
85 parts of iron, 85 parts of aluminium polychloride, 6 parts of bentonite, 12 parts of alkali lignin, 12 parts of activated magnesia.
Comparative example four
This comparative example provides a kind of composite inorganic agglutinant, and meter includes the following raw material component in parts by weight：Volcanic ash 5
Part, 85 parts of aluminium polychloride, 6 parts of bentonite, 12 parts of alkali lignin, 12 parts of activated magnesia.
Comparative example five
This comparative example provides a kind of composite inorganic agglutinant, and meter includes the following raw material component in parts by weight：Volcanic ash 5
Part, 85 parts of ferric-polysilicate, 6 parts of bentonite, 12 parts of alkali lignin, 18 parts of activated magnesia.
Comparative example six
This comparative example provides a kind of composite inorganic agglutinant, and meter includes the following raw material component in parts by weight：Volcanic ash 5
Part, 85 parts of ferric-polysilicate, 85 parts of aluminium polychloride, 12 parts of alkali lignin, 12 parts of activated magnesia.
Comparative example seven
This comparative example provides a kind of composite inorganic agglutinant, and meter includes the following raw material component in parts by weight：Volcanic ash 5
Part, 85 parts of ferric-polysilicate, 85 parts of aluminium polychloride, 6 parts of bentonite, 12 parts of activated magnesia.
Comparative example eight
This comparative example provides a kind of composite inorganic agglutinant, and meter includes the following raw material component in parts by weight：Volcanic ash 5
Part, 85 parts of ferric-polysilicate, 85 parts of aluminium polychloride, 6 parts of bentonite, 12 parts of alkali lignin.(with embodiment five)
Comparative example nine
This comparative example provides commercially available agglutinant polyiron sulfate, and product is public from Yixing City Pacific Ocean cleanser Limited Liability
Department.
Comparative example ten
This comparative example provides commercially available agglutinant aluminium polychloride, and product comes from Yixing City Pacific Ocean cleanser Limited Liability
Company.
Each embodiment and comparative example formula is shown in Table 1.
1 each embodiment and comparative example formula of table
Embodiment nine
A kind of preparation method of composite inorganic agglutinant is present embodiments provided, is included the following steps：First volcanic ash is ground
Milling is broken to 300 mesh, then volcanic ash, ferric-polysilicate, aluminium polychloride, bentonite and alkali lignin are mixed to get composite inorganic
Agglutinant.
The formula that above-described embodiment one to three provides is prepared according to preparation method provided in this embodiment, is answered
Close inorganic agglutinant.
Embodiment ten
A kind of preparation method of composite inorganic agglutinant is present embodiments provided, is included the following steps：First by volcanic ash and
Activated magnesia is ground to 300 mesh, then by volcanic ash, ferric-polysilicate, aluminium polychloride, bentonite, alkali lignin and alkali
Property oxide mixing to get composite inorganic agglutinant.
The formula that above-described embodiment four to eight, comparative example one to eight are provided according to preparation method provided in this embodiment into
Prepared by row, obtain composite inorganic agglutinant.
(note：Volcanic ash is free of in comparative example three, it is convenient to omit the step of " grinding volcanic ash to 300 mesh ".It is right
Activated magnesia is free of in ratio eight, it is convenient to omit the step of " grinding activated magnesia to 300 mesh ".)
Experiment
In order to the advantageous effect in composite inorganic agglutinant provided by the invention in processes medicine pharmacy waste water into traveling
The explanation of one step is carried out using composite inorganic agglutinant made from above-mentioned each group and commercially available agglutinant according to method used below
Following experiment is compared：
Experiment one
This experiment provides a kind of application method of composite inorganic agglutinant, includes the following steps：It is useless to 1L herbal pharmaceuticals
The aqueous solution 2mL of experimental group agglutinant 10% is added in water, main pollutant consistence is COD in Chinese traditional medicine wastewaterCr：341mg/
L, SS：124mg/L, total phosphorus：4.21mg/L fluorine ion：1.31mg/L, pH 8 quickly stirs 5min, static 15min, takes out
Supernatant is discharged.Each pollutant experimental result is shown in Table 2 in water outlet.
Each pollutant experimental result during table 2 is discharged
From the results shown in Table 2, the COD in example IV to eightCr, SS, the removal rate of total phosphorus and fluorine ion it is universal
Higher than the COD in comparative example one to tenCr, SS, total phosphorus and fluorine ion removal rate, and eight effect of embodiment is best.This is because,
- the OH generated after composite inorganic agglutinant provided by the invention hydration in the form of coordinate bond or in the form of covalent bond with metal from
Son chelates, and forms the minimum metallo-chelate of solubility stable, with reticular structure, while volcanic ash and swelling
Soil can adsorb heavy metal ion micro in waste water；SS forms small under the action of ferric-polysilicate and aluminium polychloride formation
Alumen ustum, then small alumen ustum can be become by the effect of alkali lignin by big alumen ustum, and rapid precipitation；Hydrolyze the Fe generated
(OH)3PO is adsorbed in the form of coordination3 4-；Fluoride and oxide it is common it is existing under the conditions of be easy to be formed coprecipitated object occur it is heavy
Drop, remaining a small amount of fluorine are absorbed by volcanic ash.
Experiment two
A kind of application method of composite inorganic agglutinant is present embodiments provided, is included the following steps：To 1L herbal pharmaceuticals
It is added the aqueous solution 2mL of experimental group agglutinant 10% in waste water, major pollutants COD in Chinese traditional medicine wastewaterCr：125mg/L,
SS：484mg/L, total phosphorus：1.21mg/L, total arsenic：0.025mg/L, fluorine ion：1.62mg/L, pH 7, quickly stirs 5min,
Static 15min takes out supernatant, is discharged.Each pollutant experimental result is shown in Table 3 in water outlet.
Each pollutant experimental result during table 3 is discharged
From the results shown in Table 3, the COD in example IV to eightCr, SS, total phosphorus, total arsenic and fluorine ion removal rate
COD generally higher than in comparative example one to tenCr, SS, total phosphorus, total arsenic and fluorine ion removal rate, and eight effect of embodiment is best.
This is because,-the OH generated after composite inorganic agglutinant provided by the invention hydration is in the form of coordinate bond or the shape of covalent bond
Formula is chelated with metal ion, and forms the minimum metallo-chelate of solubility stable, with reticular structure, while fire
Mountain ash can adsorb heavy metal ion micro in waste water with bentonite；The effect that SS is formed in ferric-polysilicate and aluminium polychloride
It is lower to form small alumen ustum, then small alumen ustum can be become by the effect of alkali lignin by big alumen ustum, and rapid precipitation；Agglutinant water
Solve the Fe (OH) generated3PO is adsorbed in the form of coordination3 4-；The Fe (OH) that solidifying agglutinant hydrolysis generates2With Fe (OH)3It can either be with
Arsenic reacts, and the arsenic in energy adsorbent solution, and coprecipitated reaction occurs, and generates FeAsO3, FeAsO4, Fe2As2O5, Fe
(AsO2)3, be conducive to the sedimentation of arsenic in the presence of Ca, Mg, wherein Ca derives from volcanic ash, and Mg derives from active oxygen
Change magnesium；Fluoride and oxide it is common it is existing under the conditions of be easy to form coprecipitated object and settle, remaining a small amount of fluorine is by volcano
Ash absorbs.
Experiment three
A kind of application method of composite inorganic agglutinant is present embodiments provided, is included the following steps：To 1L herbal pharmaceuticals
It is added the aqueous solution 7mL of experimental group agglutinant 10% in waste water, major pollutants COD in Chinese traditional medicine wastewaterCr：33568mg/L,
SS：3658mg/L, total phosphorus：3.26mg/L oil：3.67mg/L fluorine ion：3.9mg/L, pH 8 quickly stirs 5min, static
15min takes out supernatant, is discharged.Each pollutant experimental result is shown in Table 4 in water outlet.
Each pollutant experimental result during table 4 is discharged
From the results shown in Table 4, the COD in example IV to eightCr, SS, total phosphorus, the removal rate of oil and fluorine ion it is general
All over higher than the COD in comparative example one to tenCr, SS, total phosphorus, oil and fluorine ion removal rate, and eight effect of embodiment is best.This is
Due to the ,-OH generated after composite inorganic agglutinant provided by the invention hydration in the form of coordinate bond or in the form of covalent bond with
Metal ion chelates, and forms the minimum metallo-chelate of solubility stable, with reticular structure, while volcanic ash
Heavy metal ion micro in waste water can be adsorbed with bentonite；SS shapes under the action of ferric-polysilicate and aluminium polychloride formation
Small alumen ustum can be become to big alumen ustum, and rapid precipitation at small alumen ustum, then by the effect of alkali lignin；Agglutinant hydrolysis production
Raw Fe (OH)3PO is adsorbed in the form of coordination3 4-；Volcanic ash has larger specific surface area and adsorptivity, under vigorous stirring
The active agent layer for destroying emulsification oil meter face, keeps the small oil droplet in water exposed, and oil droplet is by its adsorption, to keep oil emulsion broken
Breast, adsorb the zeolite of oil droplet becomes the core that alumen ustum is grown up and assembled in flocculation process, then the quilt in alumen ustum infall process
It is carried out, achievees the purpose that oil removing, while bentonite can effectively remove oil；Fluoride and oxide it is common it is existing under the conditions of
It is easy to form coprecipitated object and settle, remaining a small amount of fluorine is absorbed by volcanic ash.
Experiment four
A kind of application method of composite inorganic agglutinant is present embodiments provided, is included the following steps：To 1L herbal pharmaceuticals
It is added the aqueous solution 4mL of experimental group agglutinant 10% in waste water, major pollutants COD in Chinese traditional medicine wastewaterCr：2265mg/L,
SS：236mg/L, oil：11.35mg/L fluorine ion：3.26mg/L, pH 10, quickly stirs 5min, static 15min, in taking-up
Clear liquid is discharged.Each pollutant experimental result is shown in Table 5 in water outlet.
Each pollutant experimental result during table 5 is discharged
From the results shown in Table 5, the COD in example IV to eightCr, SS, the removal rate of oil and fluorine ion it is generally high
COD in comparative example one to tenCr, SS, oil and fluorine ion removal rate, and eight effect of embodiment is best.This is because, this hair
- the OH generated after the composite inorganic agglutinant hydration of bright offer is sent out in the form of coordinate bond or in the form of covalent bond with metal ion
Raw chelating, and the minimum metallo-chelate of solubility stable, with reticular structure is formed, while volcanic ash can with bentonite
To adsorb heavy metal ion micro in waste water；SS forms small alum under the action of ferric-polysilicate and aluminium polychloride formation
Flower, then small alumen ustum can be become by the effect of alkali lignin by big alumen ustum, and rapid precipitation；Volcanic ash has larger ratio table
Area and adsorptivity destroy the active agent layer of emulsification oil meter face, keep the small oil droplet in water exposed, oil droplet is by it under vigorous stirring
Adsorption, to make oil emulsion be demulsified, adsorb the zeolite of oil droplet becomes the core that alumen ustum is grown up and assembled in flocculation process,
Then it is carried out in alumen ustum infall process, achievees the purpose that oil removing, while bentonite can effectively remove oil；Fluoride and
It is easy to form coprecipitated object under the conditions of oxide is common existing and settle, remaining a small amount of fluorine is absorbed by volcanic ash.
To sum up, composite inorganic agglutinant provided by the invention forms flco under the mutual synergistic effect of each raw material component
Particle is big, and density is big, and agglutinating reaction speed is fast, shortens processing time, and energy trap heavy metals ion removes fluorine, phosphorus, arsenic, oil
Except there is a good effect, and there is certain cleaning to act on organic and inorganic wastes, is green flocculant.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of composite inorganic agglutinant, which is characterized in that including the following raw material component：Volcanic ash, ferric-polysilicate, polyaluminium
Aluminium, bentonite, alkali lignin.
2. composite inorganic agglutinant according to claim 1, which is characterized in that meter includes the following raw material group in parts by weight
Point：1-8 parts of volcanic ash, 70-100 parts of ferric-polysilicate, 70-100 parts of aluminium polychloride, 1-10 parts of bentonite, 3-18 parts of alkali lignin；
Preferably, it includes the following raw material component that the composite inorganic agglutinant is counted in parts by weight：2-7 parts of volcanic ash, polysilicon acid
75-95 parts of iron, 75-95 parts of aluminium polychloride, 2-9 parts of bentonite, 5-16 parts of alkali lignin；
Preferably, it includes the following raw material component that the composite inorganic agglutinant is counted in parts by weight：5 parts of volcanic ash, ferric-polysilicate
85 parts, 85 parts of aluminium polychloride, 6 parts of bentonite, 12 parts of alkali lignin.
3. composite inorganic agglutinant according to claim 1 or 2, which is characterized in that meter further includes alkalinity in parts by weight
5-20 parts of metal oxide；
Preferably, described alkaline metal oxide 8-18 parts；
Preferably, 12 parts of the alkaline metal oxide.
4. composite inorganic agglutinant according to claim 3, which is characterized in that the alkaline metal oxide is selected from activity
At least one of magnesia, activated alumina or active calcium oxide；
Preferably, the alkaline metal oxide is activated magnesia.
5. the preparation method of composite inorganic agglutinant according to any one of claims 1-4, which is characterized in that including walking as follows
Suddenly：By volcanic ash, ferric-polysilicate, aluminium polychloride, bentonite, alkali lignin and optional alkaline metal oxide mix to get
Composite inorganic agglutinant.
6. the preparation method of composite inorganic agglutinant according to claim 5, which is characterized in that in volcanic ash, polysilicon acid
Before iron, aluminium polychloride, bentonite and alkali lignin mixing, first volcanic ash is ground to 200-400 mesh；
Preferably, before volcanic ash, ferric-polysilicate, aluminium polychloride, bentonite, alkali lignin and basic anhydride being mixed, first
Alkaline metal oxide is ground to 200-400 mesh.
7. the application of composite inorganic agglutinant according to any one of claims 1-4 in the treatment of waste water；
Preferably, the waste water includes Chinese traditional medicine wastewater.
8. the application method of composite inorganic agglutinant according to any one of claims 1-4, which is characterized in that including walking as follows
Suddenly：The aqueous solution of the composite inorganic agglutinant is added into waste water, is discharged after separation；Preferably, the inorganic agglutination
A concentration of 5%-20% of the aqueous solution of agent.
9. the application method of composite inorganic agglutinant according to claim 8, which is characterized in that the separation includes that will add
The waste water for entering composite inorganic agglutinant quickly stirs, static, takes out supernatant.
10. the application method of composite inorganic agglutinant according to claim 9, which is characterized in that when the quick stirring
Between be 2-10min；The quiescent time is 5-20min.
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