CN110526363A - A kind of composite high-molecular sewage treatment flocculating agent and preparation method thereof - Google Patents
A kind of composite high-molecular sewage treatment flocculating agent and preparation method thereof Download PDFInfo
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- CN110526363A CN110526363A CN201910870230.6A CN201910870230A CN110526363A CN 110526363 A CN110526363 A CN 110526363A CN 201910870230 A CN201910870230 A CN 201910870230A CN 110526363 A CN110526363 A CN 110526363A
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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
- 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
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical 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
- C02F1/54—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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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of composite high-molecular sewage treatment flocculating agents, it is made of following raw material: 35-50 parts of improved PFSs, 20-25 parts of chitin copolymers, 10-15 parts of zeolite powders, 30-35 parts of polyethylene glycol, 3% dimethyl sulphoxide aqueous solution of 8-12 part, 3-5 parts of sodium peroxydisulfates, 10-15 parts of triethanolamines；The invention also discloses a kind of preparation methods of composite high-molecular sewage treatment flocculating agent；Bodied ferric sulfate is modified by carboxymethyl cellulose, bodied ferric sulfate has linear structure being capable of colloidal solid in absorption effluent, clear gum solution is capable of forming in carboxymethyl cellulose, the inorganic macromolecule compound that bodied ferric sulfate is formed can be coated, increase its quality, biggish alumen ustum is formed, and then can speed up its sinking speed, further increases the clean-up effect to sewage.
Description
Technical field
The invention belongs to technical field of sewage, specially a kind of composite high-molecular sewage treatment flocculating agent and its preparation
Method.
Background technique
The coagulating treatment of water is one of the key link in wastewater treatment, can go turbid decontamination, reduces sewage subsequent processing
Pollutional load.And flocculant is the key factor for determining coagulating treatment effect, operation conditions, final outflow water to follow-up process
Water quality and cost etc. have a major impact.Flocculant can be divided into inorganic flocculating agent and organic flocculant according to its chemical component
Two classes, and inorganic flocculating agent can be divided into low molecule flocculant and high polymer coagulant, wherein low molecule flocculant such as aluminum sulfate,
The molysite system such as the aluminium salts such as aluminium chloride system and iron chloride, ferric sulfate, cost is relatively low for inorganic flocculating agent, but its flocculation sedimentation speed is slow,
It is urgently to be resolved.
Chinese invention patent CN107758826B discloses a kind of preparation method of sewage treatment flocculating agent, including following step
It is rapid: the extraction of S1. wheat-bran fiber element；S2. the modification of cellulose is hidden；S3. the modification of konjaku glucomannan；S4. graft copolymerization
The preparation of object；S5. graft copolymer ionizes.Solvent recovery is used in the invention preparation process, reduces the pollution to environment,
Modified cellulose is directly dissolved, the complexity of preparation is reduced.
Summary of the invention
In order to overcome above-mentioned technical problem, the present invention provides a kind of composite high-molecular sewage treatment flocculating agent and its preparation
Method.
The technical problems to be solved by the invention:
(1) molecular weight of bodied ferric sulfate, flocculation morphology and flocculating effect are below organic polymer coargulator, and polymerize
After ferric sulfate adsorbs impurity, quality is smaller, can not form biggish alumen ustum, and sinking speed is slower；
(2) bridging action of chitosan molecule is poor, itself have stronger Hyarogen-bonding, and the group that can be dissociated compared with
Few, adsorption bridging effect is weaker between the particle of absorption, is unfavorable for the sinking of particle.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of composite high-molecular sewage treatment flocculating agent, is made of following raw material: 35-50 parts of improved PFSs,
20-25 parts of chitin copolymers, 10-15 parts of zeolite powders, 30-35 parts of polyethylene glycol, 8-12 parts of 3% dimethyl sulfoxides of mass fraction
Aqueous solution, 3-5 parts of sodium peroxydisulfates, 10-15 parts of triethanolamines；
The composite high-molecular sewage treatment flocculating agent is made by the following method:
The first step mixes improved PFS, zeolite powder and polyethylene glycol, 60 DEG C is heated to, with the revolving speed of 180r/min
15min is stirred, 3% dimethyl sulphoxide aqueous solution is added, stirs evenly at this temperature, mixed liquor A is made；
Second step mixes chitin copolymer, sodium peroxydisulfate and triethanolamine, and material B is made after at the uniform velocity stirring 10min；
Material B is added in mixed liquor A third step, is cooled to 40 DEG C, stirs 30min with the revolving speed of 200r/min, is made compound
Macromolecule sewage treatment flocculating agent.
Further, the improved PFS is made by the following method:
(1) ferrous sulfate and deionized water are added in beaker, 30 DEG C of heating water baths, magnetic force is carried out with the revolving speed of 120r/min and is stirred
It mixes, and sulfuric acid solution is added dropwise, control time for adding is 10min, and potassium chlorate is added later, continues to stir 20min, take out, 30
10h is cured at DEG C, polymeric ferrous sulphate solution is made, and controls ferrous sulfate, deionized water, the weight ratio of sulfuric acid solution and potassium chlorate
It is 2: 1: 0.2: 0.1；
(2) cmc soln is added in the polymeric ferrous sulphate solution of step (1) preparation, 45 DEG C of heating water baths, with
The revolving speed of 150r/min stirs 2h, and improved PFS is made, and controls cmc soln and polymeric ferrous sulphate solution
The mass ratio of solution is 0.1: 15.
The concentration of the cmc soln is 0.1g/L, and the sulfuric acid solution is the sulfuric acid that mass fraction is 30%
Solution.
Ferrous sulfate is oxidized to ferric sulfate by potassium chlorate in acid condition in step (1), later ferric sulfate by hydrolysis,
Polymerization reaction generates bodied ferric sulfate；Step (2) is modified bodied ferric sulfate by carboxymethyl cellulose, bodied ferric sulfate
There is [Fe (H in solution2O)6]3+Equal complex ions form multicore complex ion using hydroxy as building bridge, and then are formed inorganic
High-molecular compound；There is a large amount of complex ion on bodied ferric sulfate, there is stronger absorption property to particle, pass through later
Bridge formation, crosslinked action make particle coagulation, to have stronger purification function to sewage；Pass through carboxymethyl cellulose pair later
Bodied ferric sulfate is modified, bodied ferric sulfate have linear structure can colloidal solid in absorption effluent, in carboxymethyl fibre
Dimension element is capable of forming clear gum solution, can coat the inorganic macromolecule compound that bodied ferric sulfate is formed, increase
Its quality forms biggish alumen ustum, and then can speed up its sinking speed, further increases the clean-up effect to sewage.
Further, the chitin copolymer is made of following raw material: 5-10 parts of chitosans, 30-40 part third
Acrylamide, 1-3 parts of ammonium persulfates, 0.5-1.5 parts of urea, 35-50 parts of 1.5% glacial acetic acids of mass fraction, 20-35 parts of deionized waters.
Further, the chitin copolymer is made by the following method:
Step S1, water-bath is preheated into 15min at 45 DEG C, will be added in three-necked flask after chitosan drying, be transferred to later
In water-bath after preheating, 60 DEG C are warming up to, heat preservation is spare；
Step S2,1.5% glacial acetic acid solution and deionized water are added in three-necked flask, are passed through nitrogen, air is discharged, with 100r/
The revolving speed of min carries out magnetic agitation, until chitosan is completely dissolved, ammonium persulfate and urea is added, and continues to stir 15min；
Step S3, acrylamide is added in three-necked flask in three times, every minor tick 10min is stirred under the revolving speed of 180r/min
2h is mixed and reacted, chitin copolymer is made.
Chitosan is a kind of straight chain polymer polymer, there is free amino, the energy in dilute acid soln on molecule
It is enough protonated, so that having a large amount of positive charges on its strand, a kind of cationic flocculant can be used as；In step S2
Ammonium persulfate decomposes, and can generate free radicals and the carbon-carbon bond in chitosan molecule is promoted to be broken, and respectively on two carbon atoms
Chitosan free radical is formed, and then generates chitosan macromolecular radical in system；Step (3) is poly- to shell by acrylamide
Sugar carries out graft copolymerization, and the defect of chitosan molecule bridging action difference can be overcome after polymerization, and the group that can be dissociated increases
It is more, can between the particle of absorption adsorption bridging, be conducive to the sinking of particle, and the molecular structure of chitosan can be improved,
Reduce the Hyarogen-bonding of itself；Cationic reactive groups and negatively charged colloid after polymerization on chitosan macromolecular chain
Particle attracts each other, and reduces the charge on colloidal particles surface, and the diffusion layer for capableing of compressed microparticles makes colloidal particles de- steady,
It is settled later by bonding and bridging action, and then except the inorganic suspended solid in decontaminated water.
A kind of preparation method of composite high-molecular sewage treatment flocculating agent, includes the following steps:
The first step mixes improved PFS, zeolite powder and polyethylene glycol, 60 DEG C is heated to, with the revolving speed of 180r/min
15min is stirred, 3% dimethyl sulphoxide aqueous solution is added, stirs evenly at this temperature, mixed liquor A is made；
Second step mixes chitin copolymer, sodium peroxydisulfate and triethanolamine, and material B is made after at the uniform velocity stirring 10min；
Material B is added in mixed liquor A third step, is cooled to 40 DEG C, stirs 30min with the revolving speed of 200r/min, is made compound
Macromolecule sewage treatment flocculating agent.
Beneficial effects of the present invention:
(1) present invention is prepared for a kind of composite high-molecular sewage treatment flocculating agent, is copolymerized with improved PFS and chitosan
Object etc. is used as primary raw material, and during preparing improved PFS, ferrous sulfate is in acid condition by chlorine in step (1)
Sour potassium is oxidized to ferric sulfate, and ferric sulfate generates bodied ferric sulfate by hydrolysis, polymerization reaction later；Step (2) passes through carboxymethyl
Cellulose is modified bodied ferric sulfate, there is [Fe (H in polymeric ferrous sulphate solution2O)6]3+Equal complex ions, with hydroxy
Multicore complex ion is formed as bridge formation, and then forms inorganic macromolecule compound；There is a large amount of complexing on bodied ferric sulfate
Ion has stronger absorption property to particle, makes particle coagulation by bridge formation, crosslinked action later, to have to sewage
There is stronger purification function；Bodied ferric sulfate is modified by carboxymethyl cellulose later, bodied ferric sulfate has linear
Structure can colloidal solid in absorption effluent, be capable of forming clear gum solution in carboxymethyl cellulose, can be by polymerised sulphur
The inorganic macromolecule compound that sour iron is formed is coated, and is increased its quality, is formed biggish alumen ustum, and then it is heavy to can speed up it
Reduction of speed degree further increases the clean-up effect to sewage；Solve the molecular weight, flocculation morphology and flocculation effect of bodied ferric sulfate
After fruit is below organic polymer coargulator, and bodied ferric sulfate adsorbs impurity, quality is smaller, can not be formed larger
Alumen ustum, the slower technical problem of sinking speed；
(2) during preparing chitin copolymer, chitosan is a kind of straight chain polymer polymer, there is trip on molecule
From amino, can be protonated in dilute acid soln so that on its strand have a large amount of positive charges, can be used as one
Kind cationic flocculant；Ammonium persulfate decomposes in step S2, can generate free radicals and promote the carbon-carbon bond in chitosan molecule disconnected
It splits, and forms chitosan free radical on two carbon atoms respectively, and then generate chitosan macromolecular radical in system；Step
Suddenly (3) carry out graft copolymerization to chitosan by acrylamide, and lacking for chitosan molecule bridging action difference can be overcome after polymerization
Fall into, and the group that can be dissociated increases, can between the particle of absorption adsorption bridging, be conducive to the sinking of particle, and energy
The molecular structure for enough improving chitosan, reduces the Hyarogen-bonding of itself；Cation after polymerization on chitosan macromolecular chain
Active group attracts each other with negatively charged colloidal particles, reduces the charge on colloidal particles surface, and being capable of compressed microparticles
Diffusion layer make colloidal particles de- steady, settled later by bonding and bridging action, and then remove inorganic in decontaminated water
Suspended solid；The bridging action for solving chitosan molecule is poor, itself has stronger Hyarogen-bonding, and can dissociate
Group it is less, adsorption bridging effect is weaker between the particle of absorption, the technical issues of being unfavorable for the sinking of particle.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, all other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of composite high-molecular sewage treatment flocculating agent, is made of following raw material: 35 parts of improved PFSs, and 20 parts
Chitin copolymer, 10 parts of zeolite powders, 30 parts of polyethylene glycol, 8 part of 3% dimethyl sulphoxide aqueous solution, 3 parts of sodium peroxydisulfates, 10 part three
Ethanol amine；
The composite high-molecular sewage treatment flocculating agent is made by the following method:
The first step mixes improved PFS, zeolite powder and polyethylene glycol, 60 DEG C is heated to, with the revolving speed of 180r/min
15min is stirred, 3% dimethyl sulphoxide aqueous solution is added, stirs evenly at this temperature, mixed liquor A is made；
Second step mixes chitin copolymer, sodium peroxydisulfate and triethanolamine, and material B is made after at the uniform velocity stirring 10min；
Material B is added in mixed liquor A third step, is cooled to 40 DEG C, stirs 30min with the revolving speed of 200r/min, is made compound
Macromolecule sewage treatment flocculating agent.
Improved PFS is made by the following method:
(1) ferrous sulfate and deionized water are added in beaker, 30 DEG C of heating water baths, magnetic force is carried out with the revolving speed of 120r/min and is stirred
It mixes, and sulfuric acid solution is added dropwise, control time for adding is 10min, and potassium chlorate is added later, continues to stir 20min, take out, 30
10h is cured at DEG C, polymeric ferrous sulphate solution is made, and controls ferrous sulfate, deionized water, the weight ratio of sulfuric acid solution and potassium chlorate
It is 2: 1: 0.2: 0.1；
(2) cmc soln is added in the polymeric ferrous sulphate solution of step (1) preparation, 45 DEG C of heating water baths, with
The revolving speed of 150r/min stirs 2h, and improved PFS is made, and controls cmc soln and polymeric ferrous sulphate solution
The mass ratio of solution is 0.1: 15.
Chitin copolymer is made by the following method:
Step S1, water-bath is preheated into 15min at 45 DEG C, will be added in three-necked flask after chitosan drying, be transferred to later
In water-bath after preheating, 60 DEG C are warming up to, heat preservation is spare；
Step S2,1.5% glacial acetic acid solution and deionized water are added in three-necked flask, are passed through nitrogen, air is discharged, with 100r/
The revolving speed of min carries out magnetic agitation, until chitosan is completely dissolved, ammonium persulfate and urea is added, and continues to stir 15min；
Step S3, acrylamide is added in three-necked flask in three times, every minor tick 10min is stirred under the revolving speed of 180r/min
2h is mixed and reacted, chitin copolymer is made.
Embodiment 2
A kind of composite high-molecular sewage treatment flocculating agent, is made of following raw material: 40 parts of improved PFSs, and 22 parts
Chitin copolymer, 12 parts of zeolite powders, 32 parts of polyethylene glycol, 10 part of 3% dimethyl sulphoxide aqueous solution, 3 parts of sodium peroxydisulfates, 12 parts
Triethanolamine；
The composite high-molecular sewage treatment flocculating agent is made by the following method:
The first step mixes improved PFS, zeolite powder and polyethylene glycol, 60 DEG C is heated to, with the revolving speed of 180r/min
15min is stirred, 3% dimethyl sulphoxide aqueous solution is added, stirs evenly at this temperature, mixed liquor A is made；
Second step mixes chitin copolymer, sodium peroxydisulfate and triethanolamine, and material B is made after at the uniform velocity stirring 10min；
Material B is added in mixed liquor A third step, is cooled to 40 DEG C, stirs 30min with the revolving speed of 200r/min, is made compound
Macromolecule sewage treatment flocculating agent.
Embodiment 3
A kind of composite high-molecular sewage treatment flocculating agent, is made of following raw material: 42 parts of improved PFSs, and 23 parts
Chitin copolymer, 13 parts of zeolite powders, 33 parts of polyethylene glycol, 10 part of 3% dimethyl sulphoxide aqueous solution, 4 parts of sodium peroxydisulfates, 12 parts
Triethanolamine；
The composite high-molecular sewage treatment flocculating agent is made by the following method:
The first step mixes improved PFS, zeolite powder and polyethylene glycol, 60 DEG C is heated to, with the revolving speed of 180r/min
15min is stirred, 3% dimethyl sulphoxide aqueous solution is added, stirs evenly at this temperature, mixed liquor A is made；
Second step mixes chitin copolymer, sodium peroxydisulfate and triethanolamine, and material B is made after at the uniform velocity stirring 10min；
Material B is added in mixed liquor A third step, is cooled to 40 DEG C, stirs 30min with the revolving speed of 200r/min, is made compound
Macromolecule sewage treatment flocculating agent.
Embodiment 4
A kind of composite high-molecular sewage treatment flocculating agent, is made of following raw material: 48 parts of improved PFSs, and 23 parts
Chitin copolymer, 14 parts of zeolite powders, 33 parts of polyethylene glycol, 10 part of 3% dimethyl sulphoxide aqueous solution, 4 parts of sodium peroxydisulfates, 14 parts
Triethanolamine；
The composite high-molecular sewage treatment flocculating agent is made by the following method:
The first step mixes improved PFS, zeolite powder and polyethylene glycol, 60 DEG C is heated to, with the revolving speed of 180r/min
15min is stirred, 3% dimethyl sulphoxide aqueous solution is added, stirs evenly at this temperature, mixed liquor A is made；
Second step mixes chitin copolymer, sodium peroxydisulfate and triethanolamine, and material B is made after at the uniform velocity stirring 10min；
Material B is added in mixed liquor A third step, is cooled to 40 DEG C, stirs 30min with the revolving speed of 200r/min, is made compound
Macromolecule sewage treatment flocculating agent.
Embodiment 5
A kind of composite high-molecular sewage treatment flocculating agent, is made of following raw material: 50 parts of improved PFSs, and 25 parts
Chitin copolymer, 15 parts of zeolite powders, 35 parts of polyethylene glycol, 12 part of 3% dimethyl sulphoxide aqueous solution, 5 parts of sodium peroxydisulfates, 15 parts
Triethanolamine；
The composite high-molecular sewage treatment flocculating agent is made by the following method:
The first step mixes improved PFS, zeolite powder and polyethylene glycol, 60 DEG C is heated to, with the revolving speed of 180r/min
15min is stirred, 3% dimethyl sulphoxide aqueous solution is added, stirs evenly at this temperature, mixed liquor A is made；
Second step mixes chitin copolymer, sodium peroxydisulfate and triethanolamine, and material B is made after at the uniform velocity stirring 10min；
Material B is added in mixed liquor A third step, is cooled to 40 DEG C, stirs 30min with the revolving speed of 200r/min, is made compound
Macromolecule sewage treatment flocculating agent.
Comparative example 1
This comparative example replaces improved PFS compared with Example 1, with bodied ferric sulfate, and preparation method is as follows:
The first step mixes bodied ferric sulfate, zeolite powder and polyethylene glycol, is heated to 60 DEG C, is stirred with the revolving speed of 180r/min
15min is added 3% dimethyl sulphoxide aqueous solution, stirs evenly at this temperature, and mixed liquor A is made；
Second step mixes chitin copolymer, sodium peroxydisulfate and triethanolamine, and material B is made after at the uniform velocity stirring 10min；
Material B is added in mixed liquor A third step, is cooled to 40 DEG C, stirs 30min with the revolving speed of 200r/min, is made compound
Macromolecule sewage treatment flocculating agent.
Comparative example 2
This comparative example replaces chitin copolymer compared with Example 1, with chitosan, and preparation method is as follows:
The first step mixes improved PFS, zeolite powder and polyethylene glycol, 60 DEG C is heated to, with the revolving speed of 180r/min
15min is stirred, 3% dimethyl sulphoxide aqueous solution is added, stirs evenly at this temperature, mixed liquor A is made；
Second step mixes copolymer, sodium peroxydisulfate and triethanolamine, and material B is made after at the uniform velocity stirring 10min；
Material B is added in mixed liquor A third step, is cooled to 40 DEG C, stirs 30min with the revolving speed of 200r/min, is made compound
Macromolecule sewage treatment flocculating agent.
Comparative example 3
This comparative example is a kind of sewage treatment flocculating agent in market.
Flocculating effect test is carried out to embodiment 1-5 and comparative example 1-3, as a result as shown in the table；
Waste water of paper mill 600mL is taken, is averagely fitted into 6 beakers, its turbidity, COD (COD), biochemical oxygen demand (BOD) are measured
(BOD) and suspension content (SS) data, are recorded, and think that embodiment 1-5 and comparative example 1-3 is added in 6 beakers to be made respectively
Flocculant 1.5mg, stir 10min, stand, measurement turbidity, COD, BOD and SS, calculate turbidity removal rate, COD removal
Rate, BOD removal rate and SS removal rate；
It can be seen that embodiment 1-5 turbidity removal rate is 98.7-99.8% from upper table, COD removal rate is 91.5-93.0%, BOD
Removal rate is 92.5-95.0%, and SS removal rate is 93.8-95.2%；The turbidity removal rate of comparative example 1-3 is 93.8-96.3%, COD
Removal rate is 80.5-86.1%, and BOD removal rate is 78.5-86.3%, and SS removal rate is 75.6-84.1%；So passing through carboxymethyl
Cellulose is modified bodied ferric sulfate, bodied ferric sulfate have linear structure can colloidal solid in absorption effluent, In
Carboxymethyl cellulose is capable of forming clear gum solution, can wrap the inorganic macromolecule compound that bodied ferric sulfate is formed
It covers, increases its quality, form biggish alumen ustum, and then can speed up its sinking speed, further increase the purification effect to sewage
Fruit；The molecular weight, flocculation morphology and flocculating effect for solving bodied ferric sulfate are below organic polymer coargulator, Er Qieju
It closes after ferric sulfate adsorbs impurity, quality is smaller, it can not form biggish alumen ustum, the slower technical problem of sinking speed,
And the cationic reactive groups after polymerizeing on chitosan macromolecular chain attract each other with negatively charged colloidal particles, reduce glue
The charge of body microparticle surfaces, and the diffusion layer for capableing of compressed microparticles makes colloidal particles de- steady, passes through bonding and bridge formation later
Effect is settled, and then except the inorganic suspended solid in decontaminated water；The bridging action for solving chitosan molecule is poor, itself
With stronger Hyarogen-bonding, and the group that can be dissociated is less, and adsorption bridging effect is weaker between the particle of absorption,
The technical issues of being unfavorable for the sinking of particle.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Above content is only citing made for the present invention and explanation, affiliated those skilled in the art are to being retouched
The specific embodiment stated does various modifications or additions or is substituted in a similar manner, and without departing from invention or surpasses
More range defined in the claims, is within the scope of protection of the invention.
Claims (5)
1. a kind of composite high-molecular sewage treatment flocculating agent, which is characterized in that be made of following raw material: 35-50 parts change
Property bodied ferric sulfate, 20-25 parts of chitin copolymers, 10-15 parts of zeolite powders, 30-35 parts of polyethylene glycol, 3% dimethyl of 8-12 part
Sulfoxide aqueous solution, 3-5 parts of sodium peroxydisulfates, 10-15 parts of triethanolamines；
The composite high-molecular sewage treatment flocculating agent is made by the following method:
The first step mixes improved PFS, zeolite powder and polyethylene glycol, 60 DEG C is heated to, with the revolving speed of 180r/min
15min is stirred, 3% dimethyl sulphoxide aqueous solution is added, stirs evenly at this temperature, mixed liquor A is made；
Second step mixes chitin copolymer, sodium peroxydisulfate and triethanolamine, and material B is made after at the uniform velocity stirring 10min；
Material B is added in mixed liquor A third step, is cooled to 40 DEG C, stirs 30min with the revolving speed of 200r/min, is made compound
Macromolecule sewage treatment flocculating agent.
2. a kind of composite high-molecular sewage treatment flocculating agent according to claim 1, which is characterized in that the modified poly
Ferric sulfate is made by the following method:
Ferrous sulfate and deionized water are added in beaker, 30 DEG C of heating water baths, magnetic agitation are carried out with the revolving speed of 120r/min,
And sulfuric acid solution is added dropwise, control time for adding is 10min, and potassium chlorate is added later, continues to stir 20min, take out, at 30 DEG C
10h is cured, polymeric ferrous sulphate solution is made, the weight ratio for controlling ferrous sulfate, deionized water, sulfuric acid solution and potassium chlorate is 2:
1:0.2:0.1；
(2) cmc soln is added in the polymeric ferrous sulphate solution of step (1) preparation, 45 DEG C of heating water baths, with
The revolving speed of 150r/min stirs 2h, and improved PFS is made, and controls cmc soln and polymeric ferrous sulphate solution
The mass ratio of solution is 0.1: 15.
3. a kind of composite high-molecular sewage treatment flocculating agent according to claim 1, which is characterized in that the chitosan is total
Polymers is made of following raw material: 5-10 parts of chitosans, 30-40 parts of acrylamides, 1-3 parts of ammonium persulfates, and 0.5-1.5 parts
Urea, 1.5% glacial acetic acid of 35-50 part, 20-35 parts of deionized waters.
4. a kind of composite high-molecular sewage treatment flocculating agent according to claim 1, which is characterized in that the chitosan is total
Polymers is made by the following method:
Step S1, water-bath is preheated into 15min at 45 DEG C, will be added in three-necked flask after chitosan drying, be transferred to later
In water-bath after preheating, 60 DEG C are warming up to, heat preservation is spare；
Step S2,1.5% glacial acetic acid solution and deionized water are added in three-necked flask, are passed through nitrogen, air is discharged, with 100r/
The revolving speed of min carries out magnetic agitation, until chitosan is completely dissolved, ammonium persulfate and urea is added, and continues to stir 15min；
Step S3, acrylamide is added in three-necked flask in three times, every minor tick 10min is stirred under the revolving speed of 180r/min
2h is mixed and reacted, chitin copolymer is made.
5. a kind of preparation method of composite high-molecular sewage treatment flocculating agent, which comprises the steps of:
The first step mixes improved PFS, zeolite powder and polyethylene glycol, 60 DEG C is heated to, with the revolving speed of 180r/min
15min is stirred, 3% dimethyl sulphoxide aqueous solution is added, stirs evenly at this temperature, mixed liquor A is made；
Second step mixes chitin copolymer, sodium peroxydisulfate and triethanolamine, and material B is made after at the uniform velocity stirring 10min；
Material B is added in mixed liquor A third step, is cooled to 40 DEG C, stirs 30min with the revolving speed of 200r/min, is made compound
Macromolecule sewage treatment flocculating agent.
Priority Applications (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111807483A (en) * | 2020-08-06 | 2020-10-23 | 中科乐美环保科技有限公司 | Flocculation and sterilization dual-function water treatment agent and preparation method thereof |
| CN112604712A (en) * | 2020-12-22 | 2021-04-06 | 利晟（杭州）科技有限公司 | Photodegradation catalyst for organic sewage treatment and preparation method thereof |
| CN112694136A (en) * | 2021-02-07 | 2021-04-23 | 杭州金丰环保科技有限公司 | Synthetic method of polymeric ferric sulfate and polymeric ferric sulfate |
| CN113880145A (en) * | 2021-10-26 | 2022-01-04 | 广州市芦苇环保科技有限责任公司 | Modified polymeric ferric sulfate water purifying agent and preparation process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2485984A4 (en) * | 2009-10-06 | 2014-07-30 | Univ Sydney Tech | Method for enhancing biological water treatment |
| CN104692506A (en) * | 2015-03-24 | 2015-06-10 | 山东中移能节能环保科技股份有限公司 | Preparation method and application of composite flocculant for treating coking strong-salt wastewater |
| CN107827217A (en) * | 2017-11-28 | 2018-03-23 | 芜湖上水源环保科技有限公司 | A kind of composite flocculation agent preparation method for water process |
| CN108101184A (en) * | 2017-12-27 | 2018-06-01 | 广州再森新材料科技有限公司 | A kind of sewage-treating agent and preparation method thereof |
-
2019
- 2019-09-16 CN CN201910870230.6A patent/CN110526363A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2485984A4 (en) * | 2009-10-06 | 2014-07-30 | Univ Sydney Tech | Method for enhancing biological water treatment |
| CN104692506A (en) * | 2015-03-24 | 2015-06-10 | 山东中移能节能环保科技股份有限公司 | Preparation method and application of composite flocculant for treating coking strong-salt wastewater |
| CN107827217A (en) * | 2017-11-28 | 2018-03-23 | 芜湖上水源环保科技有限公司 | A kind of composite flocculation agent preparation method for water process |
| CN108101184A (en) * | 2017-12-27 | 2018-06-01 | 广州再森新材料科技有限公司 | A kind of sewage-treating agent and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 孙传尧: "《选矿工程师手册》", 31 March 2015, 冶金工业出版社 * |
| 张玉龙: "《水处理剂配方设计与实例》", 31 May 2011, 中国纺织出版社 * |
| 袁丽嫔: ""无机絮凝剂聚硫酸铁的改性及其应用"", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111807483A (en) * | 2020-08-06 | 2020-10-23 | 中科乐美环保科技有限公司 | Flocculation and sterilization dual-function water treatment agent and preparation method thereof |
| CN112604712A (en) * | 2020-12-22 | 2021-04-06 | 利晟（杭州）科技有限公司 | Photodegradation catalyst for organic sewage treatment and preparation method thereof |
| CN112694136A (en) * | 2021-02-07 | 2021-04-23 | 杭州金丰环保科技有限公司 | Synthetic method of polymeric ferric sulfate and polymeric ferric sulfate |
| CN113880145A (en) * | 2021-10-26 | 2022-01-04 | 广州市芦苇环保科技有限责任公司 | Modified polymeric ferric sulfate water purifying agent and preparation process thereof |
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