CN108163953A - A kind of water treatment composite flocculant and preparation method thereof - Google Patents
A kind of water treatment composite flocculant and preparation method thereof Download PDFInfo
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- CN108163953A CN108163953A CN201711481989.2A CN201711481989A CN108163953A CN 108163953 A CN108163953 A CN 108163953A CN 201711481989 A CN201711481989 A CN 201711481989A CN 108163953 A CN108163953 A CN 108163953A
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- coupling agent
- hydroxide colloid
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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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular 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
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of water treatment composite flocculants, are formed by acrylamide and modified aluminium hydroxide colloid in-situ polymerization, wherein, the ratio between the acrylamide and the amount of substance of modified aluminium hydroxide colloid are 1：(5‑8).The invention also discloses a kind of preparation methods of water treatment composite flocculant.Water treatment composite flocculant of the present invention is a kind of composite flocculation agent with the performance of inorganic matter and organic matter, enable the particle in sewage that can capture the other impurities particle in water body while absorption by inorganic flocculating agent, avoid pollution of the flocculant to environment, harm is reduced, meets the processing requirement of the increasingly complicated sewage of constituent.
Description
Technical field
The invention belongs to sewage treating material technical fields, and in particular to a kind of water treatment composite flocculant and its preparation side
Method.
Background technology
In recent years, it with the enhancing of people's environmental consciousness and the implementation of China's the Sustainable Development Strategy, prevents from polluting, protect
The work in retaining ring border has caused the great attention of governments at all levels.Industrial wastewater is the pollution sources of environment maximum, how to administer difference
The waste water of industry reaches the problem of discharge standard is in the urgent need to address at present.Water process refers to for water quality is made to reach one
Surely the physics taken using standard, chemical measure.The purpose of water process is to improve water quality, makes up to certain water standard.It presses
The difference of processing method, has physics water process, Water Treatment, the biological water process etc. a variety of.By process object or purpose not
Together, there is two major class of Water purification and wastewater treatment.
Flocculant is common chemical reagent in sewage disposal, according to China chemical industry standard HG1762-1996《At water
Manage agent product classification and name》, flocculant will be referred to as the water treatment agent of coagulant precipitation process in Treatment of Industrial Water, it is every
It can make the substance that the solute in water body, colloid or suspended material generate floccule precipitation that can all be referred to as flocculant.Flocculant
Type is various, up to 100 kinds, can according to chemical composition be divided into inorganic flocculating agent, organic flocculant and microbial flocculant three
Kind, in addition, also mixed type and composite flocculant.The kind of organic flocculant is more, generally linear polymeric, inorganic wadding
The kind of solidifying agent is relatively fewer, and biological flocculant is a kind of New Type Water Treatment Chemicals to grow up in nearest twenty or thirty year, application
Gradually increasing.
Organic polymer coargulator have developed rapidly, and novel product constantly comes out, and since its dosage is small, flocculation ability is high,
Effect is good, at low cost, so being of wide application.But most of artificial synthesized organic polymer coargulators are all toxic,
Processing drinking water is thus cannot be used for, while it is also one of its shortcoming that it is huge, which to generate sludge volume,.At present, common inorganic aluminate
Flocculant is aluminum sulfate and aluminium chloride, and the sludge that aluminium salt flocculence generates, which is applied to agricultural, can cause the aluminium content in soil to increase
It is more, there is aluminium evil so as to cause plant, plant is made normal growth or even the death of plant can not to be caused, when these high aluminium contents
Plant enter food chain after also affect domestic animals, the mankind, cause poisoning by aluminum, seriously affect the health of the mankind.Therefore,
From environment and the angle of human health, flocculation, the dewatering of aluminum salt flocculant should be improved, reduces aluminum sulfate, aluminium chloride
Application, so, aluminum sulfate and aluminium chloride are gradually substituted by high molecular inorganic flocculating agent.Inorganic polymer aluminium system flocculates
Agent has aluminium polychloride, polysilicic acid aluminum chloride, polyaluminium sulfate, polysilicate sulfuric acid aluminium etc., the inorganic polymer of most common of which
Flocculant is aluminium polychloride.Poly-aluminium class inorganic polymer flocculant is a kind of polymer containing hydroxyl, has very strong boundary
The hydroxyl generation hydrolysis of face adsorption capacity, in water mating surface, formation surface sinks under the conditions of high concentration, high ph-values
It forms sediment, polymeric aluminum is changed into alumina gel or even forms aluminum hydroxide precipitation, by cohesion, charge neutrality and flocculation, sticks volume and sweeps work
With achieve the effect that water removal in suspended particles.Although poly-aluminium flocculant increases compared with the flocculating property of aluminum sulfate, aluminium chloride,
Also suitably reduce the harm of aluminium, but there are the shortcomings that of high cost, dosage is big, sinking speed is slow, while be difficult to full
The processing requirement of the increasingly complicated sewage of sufficient constituent.
Invention content
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of water treatment composite flocculants, pass through
Inorganic-organic flocculant is compound, is a kind of composite flocculation agent with the performance of inorganic matter and organic matter, makes in sewage
Particle other impurities particle in water body can be captured while can be adsorbed by inorganic flocculating agent, avoid flocculant to environment
Pollution reduces harm, meets the processing requirement of the increasingly complicated sewage of constituent.
The present invention also provides a kind of preparation methods of water treatment composite flocculant, are prepared by in-situ dispersion polymerization method
Organic-inorganic composite flocculant improves inorganic particulate dispersing uniformity, improves the overall structure of material.
To solve the above problems, the technical solution adopted in the present invention is as follows：
A kind of water treatment composite flocculant is formed by acrylamide and modified aluminium hydroxide colloid in-situ polymerization,
Wherein, the ratio between the acrylamide and the amount of substance of modified aluminium hydroxide colloid are 1：(5-8).
As further embodiment, modified aluminium hydroxide colloid of the present invention is into glue with coupling agent to aluminium hydroxide
Body row is modified.
As further embodiment, coupling agent of the present invention is in titante coupling agent and silane coupling agent one
Kind.
A kind of preparation method of water treatment composite flocculant, including
The step of preparing alumine hydroxide colloid：AlCl3It is dissolved in the mixed solution of second alcohol and water, after high-speed stirred is uniform,
It is 1 by molar ratio:1 sodium carbonate and sodium hydroxide is added drop-wise in mixed solution, and the pH value of regulation system obtains aluminium hydroxide
Colloid；
Alumine hydroxide colloid activation modification step：Above-mentioned alumine hydroxide colloid is added in agitator tank, adds in coupling agent,
It stirs evenly, the modified aluminium hydroxide colloid after being activated；
In-situ polymerization prepares composite flocculation agent step：Closed reactor will be placed in above-mentioned modified aluminium hydroxide colloidal solution
In, it is passed through nitrogen and acrylamide and cation modifier is added in after 25-35 minutes, initiator is added dropwise, carry out polymerisation, reaction
Product afterwards is extracted 20-30 hours successively with ethyl alcohol and acetone mixed solution again after ethanol precipitation, acetone washing, solid content
Constant weight is dried under vacuum to after suction filtration, obtains composite flocculation agent.
As further embodiment, in the step of preparing alumine hydroxide colloid of the present invention, the mixing of second alcohol and water
The volume ratio of second alcohol and water is 1 in solution：(1-3), the rotating speed of high-speed stirred is 2000-3000r/min.
As further embodiment, pH value of the present invention is 8.7-9.5.
As further embodiment, in alumine hydroxide colloid activation modification step of the present invention, the coupling agent is
One kind in titante coupling agent and silane coupling agent, coupling agent and AlCl3Mass ratio be 2.7-3.5.
As further embodiment, in-situ polymerization of the present invention is prepared in composite flocculation agent step, the cation
Modifying agent is MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, the cation modifier and AlCl3Molar ratio be (5-7)：
10。
As further embodiment, initiator of the present invention is sodium peroxydisulfate or potassium peroxydisulfate；The dosage of initiator
0.5-1.0% for acrylamide weight.
As further embodiment, in-situ polymerization of the present invention is prepared in composite flocculation agent step, polymerisation
Temperature is 60-75 DEG C, and the time of polymerisation is 3-5 hours.
Compared with prior art, the beneficial effects of the present invention are：
1. water treatment composite flocculant of the present invention is that a kind of have the characteristics that the performance of inorganic matter and organic matter
Composite flocculation agent enables the particle in sewage that can capture the other impurities in water body while absorption by inorganic flocculating agent
Grain, flocculating effect are excellent；
2. water treatment composite flocculant of the present invention reduces danger it is possible to prevente effectively from pollution of the flocculant to environment
Evil meets the processing requirement of the increasingly complicated sewage of constituent；
3. the preparation method of water treatment composite flocculant of the present invention is by in-situ polymerization, inorganic particulate point is improved
Uniformity is dissipated, the barrier property for the flocculant material produced, mechanical performance are stronger, and weight is lighter, improve the whole of flocculation material
Body structure.
The present invention is described in further detail With reference to embodiment.
Specific embodiment
Water treatment composite flocculant of the present invention is poly- in situ by acrylamide and modified aluminium hydroxide colloid
It closes, wherein, the ratio between amount of substance of the acrylamide and modified aluminium hydroxide is 1：
(5-8).In preferred scheme, the ratio between amount of substance of the acrylamide and modified aluminium hydroxide is 1:
6.3。
As further embodiment, modified aluminium hydroxide colloid of the present invention is into glue with coupling agent to aluminium hydroxide
Body row is modified.
As further embodiment, coupling agent of the present invention is titante coupling agent, silane coupling agent, aluminic acid
One kind in ester coupling agent, bimetallic coupling agent, phosphate coupling agent.The preferred present invention is using the ammonia in silane coupling agent
One kind in base silane, epoxy radicals silicone hydride and methacryloxypropyl silane.
A kind of preparation method of water treatment composite flocculant, including
The step of preparing alumine hydroxide colloid：AlCl3It is dissolved in the mixed solution of second alcohol and water, after high-speed stirred is uniform,
It is 1 by molar ratio:1 sodium carbonate and sodium hydroxide is added drop-wise in mixed solution, and the pH value of regulation system obtains aluminium hydroxide
Colloid；
Alumine hydroxide colloid activation modification step：Above-mentioned alumine hydroxide colloid is added in agitator tank, adds in coupling agent,
It stirs evenly, the modified aluminium hydroxide colloid after being activated；
In-situ polymerization prepares composite flocculation agent step：Closed reactor will be placed in above-mentioned modified aluminium hydroxide colloidal solution
In, it is passed through nitrogen and acrylamide and cation modifier is added in after 25-35 minutes, initiator is added dropwise, carry out polymerisation, reaction
Product afterwards is extracted 20-30 hours successively with ethyl alcohol and acetone mixed solution again after ethanol precipitation, acetone washing, solid content
Constant weight is dried under vacuum to after suction filtration, obtains composite flocculation agent.
As further embodiment, in the step of preparing alumine hydroxide colloid of the present invention, the mixing of second alcohol and water
The volume ratio of second alcohol and water is 1 in solution：(1-3), the rotating speed of high-speed stirred is 2000-3000r/min.
In the present invention, the pH of system can influence the flocculating effect of the flocculant after polymerization, after being primarily due to polymerization
Flocculant is per se with positive charge, with H+There is certain repulsive force so that flocculant cannot adequately touch outstanding in waste water
Floating particle, causes within a certain period of time, to be unable to reach adsorption saturation, the flco of formation is loose.Therefore system is fitted in the present invention
For alkaline environment.As further embodiment, pH value of the present invention is 8.7-9.5.Wherein solid particle is gone in waste water
Except the best system pH of rate is 9.2.
In the present invention, coupling agent plays the role of aluminium hydroxide aluminium oxide surface modification, using aoxidizing aluminium surface
With coupling agent condensation reaction occurs for hydroxyl, and inorganic oxide is connected with organic compound by chemical bond in this way, so as to
Form high molecular polymerization product.As further embodiment, in alumine hydroxide colloid activation modification step of the present invention, institute
Coupling agent is stated as one kind in titante coupling agent and silane coupling agent, the preferred present invention is using in silane coupling agent
Amino silane, one kind in epoxy radicals silicone hydride and methacryloxypropyl silane, coupling agent and AlCl3Mass ratio be 2.7-
3.5.Aluminium oxide is modified through coupling agent surface, is provided with unsaturated double-bond, can be sent out with acrylamide and cationic initiator
Raw polyaddition reaction, but when coupling agent dosage increases, the viscosity for not leading to polymer is excessive.Preferably, coupling agent with
AlCl3Mass ratio be 3.2.
In the present invention, the dosage of cation modifier directly influences the degree ofacationic substitution of flocculant, and cation takes
The quality of the height direct relation flocculant flocculating property of Dai Du.In order to obtain the flocculant of good flocculating effect, as into
The scheme of one step, in-situ polymerization of the present invention are prepared in composite flocculation agent step, and the cation modifier is methyl-prop
Alkene acyloxyethyl trimethyl ammonium chloride, the cation modifier and AlCl3Molar ratio be (5-7)：10.Preferably, it is described
Cation modifier and AlCl3Molar ratio be 6.2：10.
In the present invention, influence of the dosage of initiator to composite flocculation agent intrinsic viscosity is bigger, as initiator is used
Amount increases, the intrinsic viscosity first increases and then decreases of composite flocculation agent.Therefore, it is of the present invention as further embodiment
Initiator is sodium peroxydisulfate or potassium peroxydisulfate；The dosage of initiator is the 0.5-1.0% of acrylamide weight.Preferred initiator
Dosage be acrylamide weight 0.6%.
As further embodiment, in-situ polymerization of the present invention is prepared in composite flocculation agent step, polymerisation
Temperature is 60-75 DEG C, and the time of polymerisation is 3-5 hours.
It is specific embodiment of the present invention below, in the following embodiments, involved raw material, reagent, equipment are removed at this
Have outside particular determination in invention, can be obtained by buying pattern.
Embodiment 1
A kind of water treatment composite flocculant is formed by acrylamide and modified aluminium hydroxide colloid in-situ polymerization,
Wherein, the ratio between amount of substance of the acrylamide and modified aluminium hydroxide is 1：5-8；Its specific preparation method is as follows：
The step of preparing alumine hydroxide colloid：AlCl3It is 1 to be dissolved in volume ratio:In the mixed solution of 1 second alcohol and water,
It is 1 by molar ratio after 2000r/min high-speed stirreds are uniform:1 sodium carbonate and sodium hydroxide is added drop-wise in mixed solution, is adjusted
The pH value of section system obtains alumine hydroxide colloid to 8.7；
Alumine hydroxide colloid activation modification step：Above-mentioned alumine hydroxide colloid is added in agitator tank, adds in coupling agent,
Coupling agent and AlCl3Mass ratio for 2.7, stir evenly, the modified aluminium hydroxide colloid after being activated；
In-situ polymerization prepares composite flocculation agent step：Closed reactor will be placed in above-mentioned modified aluminium hydroxide colloidal solution
In, it is passed through nitrogen and acrylamide and cation modifier, the cation modifier and AlCl is added in after 25 minutes3Molar ratio
It is 5：10, initiator is added dropwise, the dosage of initiator is the 0.5% of acrylamide weight, carries out polymerisation, and the temperature of reaction is
60 DEG C, time of polymerisation is 3 hours, the product after reaction successively after ethanol precipitation, acetone washing again with ethyl alcohol and
Acetone mixed solution extracts 20 hours, and solid content is dried under vacuum to constant weight after filtering, and obtains composite flocculation agent.
Embodiment 2
A kind of water treatment composite flocculant is formed by acrylamide and modified aluminium hydroxide colloid in-situ polymerization,
Wherein, the ratio between amount of substance of the acrylamide and modified aluminium hydroxide is 1:6.3；Its specific preparation method is as follows：
The step of preparing alumine hydroxide colloid：AlCl3It is 1 to be dissolved in volume ratio:In the mixed solution of 2 second alcohol and waters,
It is 1 by molar ratio after 2700r/min high-speed stirreds are uniform:1 sodium carbonate and sodium hydroxide is added drop-wise in mixed solution, is adjusted
The pH value of section system obtains alumine hydroxide colloid to 9.2；
Alumine hydroxide colloid activation modification step：Above-mentioned alumine hydroxide colloid is added in agitator tank, adds in coupling agent,
Coupling agent and AlCl3Mass ratio for 3.2, stir evenly, the modified aluminium hydroxide colloid after being activated；
In-situ polymerization prepares composite flocculation agent step：Closed reactor will be placed in above-mentioned modified aluminium hydroxide colloidal solution
In, it is passed through nitrogen and acrylamide and cation modifier, the cation modifier and AlCl is added in after 30 minutes3Molar ratio
It is 6：10, initiator is added dropwise, the dosage of initiator is the 0.6% of acrylamide weight, carries out polymerisation, and the temperature of reaction is
72 DEG C, time of polymerisation is 4 hours, the product after reaction successively after ethanol precipitation, acetone washing again with ethyl alcohol and
Acetone mixed solution extracts 27 hours, and solid content is dried under vacuum to constant weight after filtering, and obtains composite flocculation agent.
Embodiment 3
A kind of water treatment composite flocculant is formed by acrylamide and modified aluminium hydroxide colloid in-situ polymerization,
Wherein, the ratio between amount of substance of the acrylamide and modified aluminium hydroxide is 1：8；Its specific preparation method is as follows：
The step of preparing alumine hydroxide colloid：AlCl3It is 1 to be dissolved in volume ratio:In the mixed solution of 3 second alcohol and waters,
It is 1 by molar ratio after 3000r/min high-speed stirreds are uniform:1 sodium carbonate and sodium hydroxide is added drop-wise in mixed solution, is adjusted
The pH value of section system obtains alumine hydroxide colloid to 9.5；
Alumine hydroxide colloid activation modification step：Above-mentioned alumine hydroxide colloid is added in agitator tank, adds in coupling agent,
Coupling agent and AlCl3Mass ratio for 3.5, stir evenly, the modified aluminium hydroxide colloid after being activated；
In-situ polymerization prepares composite flocculation agent step：Closed reactor will be placed in above-mentioned modified aluminium hydroxide colloidal solution
In, it is passed through nitrogen and acrylamide and cation modifier, the cation modifier and AlCl is added in after 35 minutes3Molar ratio
It is 7：10, initiator is added dropwise, the dosage of initiator is the 1.0% of acrylamide weight, carries out polymerisation, and the temperature of reaction is
75 DEG C, time of polymerisation is 5 hours, the product after reaction successively after ethanol precipitation, acetone washing again with ethyl alcohol and
Acetone mixed solution extracts 30 hours, and solid content is dried under vacuum to constant weight after filtering, and obtains composite flocculation agent.
Performance and effect assessment
1. viscosity test：The viscosity of the composite flocculation agent obtained to above-described embodiment 1-3 is tested, test temperature
25 DEG C, rotational viscometer：Model NDJ -79；Test result is referring to table 1.
Table 1
| Embodiment | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Viscosity (dLg) | 6.3 | 6.8 | 6.6 |
2. flocculating property detects：The flocculating property of above-described embodiment 1-3 is tested, the project of test contains including solid phase
Water, solid phase removal rate, the rate of settling.The dosage for meeting flocculant is 25mg/L, and testing result is referring to table 2.
Table 2
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Solid phase water content % | 20 | 18 | 23 |
| Solid phase removal rate | 96 | 98 | 96 |
| The rate of settling (cm/s) | 0.53 | 0.56 | 0.55 |
The above embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of water treatment composite flocculant, which is characterized in that it is in situ by acrylamide and modified aluminium hydroxide colloid
It is polymerized, wherein, the ratio between the acrylamide and the amount of substance of modified aluminium hydroxide colloid are 1：(5-8).
2. water treatment composite flocculant according to claim 1, which is characterized in that the modified aluminium hydroxide colloid is to use
Coupling agent is modified aluminium hydroxide into colloid row.
3. water treatment composite flocculant according to claim 2, which is characterized in that the coupling agent is coupled for titanate ester
It is a kind of in agent and silane coupling agent.
4. a kind of preparation method of water treatment composite flocculant as described in claim 1, which is characterized in that including
The step of preparing alumine hydroxide colloid：AlCl3It is dissolved in the mixed solution of second alcohol and water, after high-speed stirred is uniform, general mole
Than being 1:1 sodium carbonate and sodium hydroxide is added drop-wise in mixed solution, and the pH value of regulation system obtains alumine hydroxide colloid；
Alumine hydroxide colloid activation modification step：Above-mentioned alumine hydroxide colloid is added in agitator tank, adds in coupling agent, stirring
Uniformly, the modified aluminium hydroxide colloid after being activated；
In-situ polymerization prepares composite flocculation agent step：It will be placed in closed reactor in above-mentioned modified aluminium hydroxide colloidal solution,
It is passed through nitrogen and acrylamide and cation modifier is added in after 25-35 minutes, initiator is added dropwise, polymerisation is carried out, after reaction
Product extracted 20-30 hour with ethyl alcohol and acetone mixed solution again after ethanol precipitation, acetone washing successively, solid content pumping
Constant weight is dried under vacuum to after filter, obtains composite flocculation agent.
5. preparation method according to claim 4, which is characterized in that in described the step of preparing alumine hydroxide colloid, second
The volume ratio of second alcohol and water is 1 in the mixed solution of alcohol and water：(1-3), the rotating speed of high-speed stirred is 2000-3000r/min.
6. preparation method according to claim 4, which is characterized in that the pH value is 8.7-9.5.
7. preparation method according to claim 4, which is characterized in that in the alumine hydroxide colloid activation modification step,
The coupling agent is one kind in titante coupling agent and silane coupling agent, coupling agent and AlCl3Mass ratio be 2.7-
3.5。
8. preparation method according to claim 4, which is characterized in that the in-situ polymerization prepares composite flocculation agent step
In, the cation modifier is MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, the cation modifier and AlCl3Rub
You are than being (5-7)：10.
9. preparation method according to claim 8, which is characterized in that the initiator is sodium peroxydisulfate or potassium peroxydisulfate；
The dosage of initiator is the 0.5-1.0% of acrylamide weight.
10. preparation method according to claim 4, which is characterized in that the in-situ polymerization prepares composite flocculation agent step
In, the temperature of polymerisation is 60-75 DEG C, and the time of polymerisation is 3-5 hours.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624222A (en) * | 2020-12-15 | 2021-04-09 | 陕西科技大学 | Demulsification flocculation multifunctional water cleaning agent and preparation method and application thereof |
| CN113788518A (en) * | 2021-09-02 | 2021-12-14 | 中国科学院合肥物质科学研究院 | Organic-inorganic composite flocculant and preparation method and application thereof |
| CN114634962A (en) * | 2022-04-29 | 2022-06-17 | 韩耀辉 | Preparation method of abalone viscera protein peptide |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554592A (en) * | 2003-12-21 | 2004-12-15 | 浙江大学 | Organic-inorganic ionic hetero high efficiency flocculant |
| CN104724808A (en) * | 2015-04-02 | 2015-06-24 | 四川省科学城天人环保有限公司 | Polyacrylamide composite flocculant and preparation method thereof |
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- 2017-12-29 CN CN201711481989.2A patent/CN108163953A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554592A (en) * | 2003-12-21 | 2004-12-15 | 浙江大学 | Organic-inorganic ionic hetero high efficiency flocculant |
| CN104724808A (en) * | 2015-04-02 | 2015-06-24 | 四川省科学城天人环保有限公司 | Polyacrylamide composite flocculant and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624222A (en) * | 2020-12-15 | 2021-04-09 | 陕西科技大学 | Demulsification flocculation multifunctional water cleaning agent and preparation method and application thereof |
| CN113788518A (en) * | 2021-09-02 | 2021-12-14 | 中国科学院合肥物质科学研究院 | Organic-inorganic composite flocculant and preparation method and application thereof |
| CN114634962A (en) * | 2022-04-29 | 2022-06-17 | 韩耀辉 | Preparation method of abalone viscera protein peptide |
| CN114634962B (en) * | 2022-04-29 | 2024-03-19 | 韩耀辉 | Preparation method of abalone viscera protein peptide |
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Application publication date: 20180615 |