CN107555567A - A kind of composite polyacrylamide for sewage disposal - Google Patents
A kind of composite polyacrylamide for sewage disposal Download PDFInfo
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- CN107555567A CN107555567A CN201710885702.6A CN201710885702A CN107555567A CN 107555567 A CN107555567 A CN 107555567A CN 201710885702 A CN201710885702 A CN 201710885702A CN 107555567 A CN107555567 A CN 107555567A
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- polyacrylamide
- molecular weight
- high molecular
- super high
- sewage disposal
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Abstract
It is an object of the invention to provide a kind of cost is low, purifying water effect is good, the environment amenable composite polyacrylamide for sewage disposal.Super high molecular weight polyacrylamide and surfactant are formed composite polyacrylamide by the present invention, sewage is handled, surfactant, which can improve, to be changed into hydrophobicity by hydrophily, prevent the active force between mud particle and water, so as to easily make silt reunite, settle down, the content of sludge in sewage is reduced, the polyacrylamide of super high molecular weight can also play a part of flocculation, and two materials synergy improves water purification effect.
Description
Technical field
The present invention relates to a kind of composite polyacrylamide for sewage disposal, belong to technical field of sewage.
Background technology
Polyacrylamide classification polyacrylamide Products:Polyacrylamide (PAM) is high molecular weight water soluble polymer,
Insoluble in most of organic solvents, there is good flocculability, the frictional resistance between liquid can be reduced, by ion characteristic point
Nonionic, anion, cation and the type of amphoteric four can be divided into.Sewage disposal station-service PAMC is as dirty
Sludge dehydrating agent is sought in water transport.
At present, the treating sewage by sewage treating agent used in the prior art has the following disadvantages：(1) single poly- third is used
Acrylamide, it is necessary to add flocculation aid or flocculant step by step, and the time of processing is grown, and cost is high；(2) during preparing
The pernicious gases such as substantial amounts of carbon dioxide, Ammonia can be produced and pollute environment.
The content of the invention
It is an object of the invention to provide a kind of cost is low, purifying water effect is good, environment amenable for sewage disposal
Composite polyacrylamide.
The present invention provides a kind of composite polyacrylamide for sewage disposal, it is characterised in that including super high molecular weight
The weight percent of polyacrylamide and water soluble surfactant active, super high molecular weight polyacrylamide and water soluble surfactant active
Than for 80~99：1~20.
Further improvement of the present invention, super high molecular weight polyacrylamide relative molecular mass are 1.23 × 107~3.28
×107。
Further improvement of the present invention, including inorganic macromolecule compound, its weight and super high molecular weight polyacrylamide
It is 1~20 with the ratio between the gross weight of surfactant active:80~99.
Further improvement of the present invention, including environment-friendly water-soluble inorganic salts, its weight and ultrahigh molecular weight polypropylene acyl
The ratio between gross weight of amine and surfactant active is 5~50:50~95.
Further improvement of the present invention, super high molecular weight polyacrylamide, surfactant and inorganic polymer are identical
Polyacrylamide, surfactant and the inorganic polymer of ionic.
Further improvement of the present invention, the preparation method of super high molecular weight polyacrylamide are：Added in polymeric kettle dense
The acrylamide monomer aqueous solution, auxiliary agent, composite initiator for 24% are spent, is passed through high pure nitrogen, oxygen is driven and carries out adiabatic combined polymerization,
Then it is granulated, dried, crushed and obtain final product, the acrylic acid for being 80% for the concentration of hydrolysis is added in polymeric kettle
Sodium monomer solution, and add the chain extender C12~C24 fatty amines or borate family compound for improving relative molecular mass
Reaction product；The concentration of the mix monomer of acrylamide and sodium acrylate monomers aqueous solution composition is 10~40%, acrylic acid
The addition of sodium monomer solution is the 10~60% of mix monomer total amount；The addition of chain extender is mix monomer total amount
0.001~0.5%；Composite initiator is oxidation-reduction agent and azo-initiator, and the addition of oxidation-reduction agent is mixing
The 0.0005~0.3% of monomer total amount, the addition of azo-initiator are the 0.0002~0.1% of mix monomer total amount；Help
Agent is complexing agent and solubilizer, and the addition of complexing agent is the 0~0.6% of mix monomer total amount, and the addition of solubilizer is mixed
Close the 0.05~10% of monomer total amount；Wherein, oxidant is potassium peroxydisulfate or sodium peroxydisulfate or ammonium persulfate, and reducing agent is sulfurous
Sour sodium or sodium hydrogensulfite or formaldehyde time sodium hydrogensulfite or the ammonium of tetramethyl second two or β-dimethylaminopropionitrile or monoethanolamine, azo
Class initiator is azodiisobutyronitrile or 2, double (2- amidine propanes) dihydrochlorides or 4 of 2 '-azo, double (the 4- cyano group penta of 4 '-azo
Acid) dihydrochloride, complexing agent is ethylenediamine tetra-acetic acid or disodium ethylene diamine tetraacetate or tetrasodium ethylenediamine tetraacetate, solubilizer are
Urea or sodium formate or isopropanol；Wherein, precipitation from aqueous solution initiation temperature is 3~25 DEG C, and polymerization time is 3~6h.
Compared with prior art, beneficial effects of the present invention：
1st, super high molecular weight polyacrylamide and surfactant are formed composite polyacrylamide pair by invention
Sewage is handled, and surfactant, which can improve, to be changed into hydrophobicity by hydrophily, prevent the active force between mud particle and water,
So as to easily make silt reunite, settle down, the content of sludge in sewage is reduced, the polyacrylamide of super high molecular weight can also rise
The effect of flocculation, two materials synergy improves water purification effect.
2nd, the present invention adds surfactant in super high molecular weight polyacrylamide can reduce cost, to realize raising water
The effect of matter.
3rd, in the present invention inorganic macromolecule compound that uses can strengthen super high molecular weight polyacrylamide it is electrical so as to
Strengthen its bridging effect, precipitate suspended particles, improve wastewater purification efficiency.
4th, it is harmful that carbon dioxide, ammonia etc. will not be produced in the present invention in the preparation method of super high molecular weight polyacrylamide
Gas, free from environmental pollution, based environment close friend's production method, the molecular weight of the polyacrylamide of preparation is 1.23 × 107~3.28
×107, relative molecular weight greatly increases.It is good to prepare effect.
Embodiment
Embodiment 1：
Prepare super high molecular weight polyacrylamide：Oxidant uses ammonium persulfate, and reducing agent uses sodium hydrogensulfite, azo
Class initiator uses 4, and double (4- cyanopentanoic acids) dihydrochlorides of 4 '-azo, complexing agent uses ethylenediamine tetra-acetic acid, and solubilizer uses
Urea.
477.6kg deionized waters are put into polymeric kettle, adjustment temperature sequentially adds concentration to 5 DEG C in the case where being passed through nitrogen
The sodium acrylate monomers aqueous solution 137.5kg, the 0.88kg for being 80% for 24% acrylamide monomer aqueous solution 1375kg, concentration
Chain dose BC-18, urea 8.8kg, ethylenediamine tetra-acetic acid 0.02kg, use 10%NaCO3The aqueous solution regulation pH value be 9 ±
0.5,0.05kg sodium hydrogensulfites, 0.08kg V-44,0.09kg ammonium persulfate are sequentially added after continuing logical nitrogen 30min, then pass through
Cross 20min or so, material starts tacky in kettle, and starts to warm up, and stops logical nitrogen, carries out adiabatic polymerisation, temperature in the kettle reaches after 4h
To 82 DEG C, the blowing after 30min, it is granulated, drying, crushes and obtain the anionic acrylamide of relative molecular mass 32,780,000 and be total to
Polymers.
The super high molecular weight polyacrylamide prepared is prepared into compound poly- propionamide, including relative molecular mass is 3278
Ten thousand super high molecular weight polyacrylamides, water soluble surfactant active's cetyl benzenesulfonic acid sodium, inorganic flocculating agent active silicic acid and
Water-soluble inorganic salt sodium sulphate, on the basis of super high molecular weight polyacrylamide weight, water soluble surfactant active it is effective into
Divide and account for the 1% of super high molecular weight polyacrylamide weight；The active ingredient of inorganic flocculating agent accounts for super high molecular weight polyacrylamide
With the 1% of water soluble surfactant active's gross weight；Water-soluble inorganic salt accounts for super high molecular weight polyacrylamide and water-soluble table
The 5% of face total surfactant weight.
Embodiment 2：
Prepare super high molecular weight polyacrylamide：Oxidant uses ammonium persulfate, and reducing agent uses sodium hydrogensulfite, azo
Class initiator uses V-44, and complexing agent uses ethylenediamine tetra-acetic acid, and solubilizer uses urea.
476.3kg deionized waters are put into polymeric kettle, adjustment temperature sequentially adds concentration to 5 DEG C in the case where being passed through nitrogen
The sodium acrylate monomers aqueous solution 137.5kg, the 0.88kg for being 80% for 24% acrylamide monomer aqueous solution 1375kg, concentration
Chain dose BC-18, urea 8.8kg, ethylenediamine tetra-acetic acid 0.02kg, use 10%NaCO3The aqueous solution regulation pH value be 9 ±
0.5,0.05kg sodium hydrogensulfites, 0.08kg V-44,0.09kg ammonium persulfate are sequentially added after continuing logical nitrogen 30min, then pass through
Cross 20min or so, material starts tacky in kettle, and starts to warm up, and stops logical nitrogen, carries out adiabatic polymerisation, temperature in the kettle after 3.5h
Reach 84.5 DEG C, the blowing after 30min, granulation, drying, crushing obtain the bad product of dissolubility, because of serious crosslinking, can not survey
Determine relative molecular mass.
Embodiment 3：
Remaining is the same as embodiment 1 in addition to BC-18 addition is 0.44kg.As a result being total to for relative molecular mass 12,320,000 is obtained
Polymers.
The super high molecular weight polyacrylamide prepared is prepared into compound poly- propionamide, including relative molecular mass is 1232
Ten thousand super high molecular weight polyacrylamides, water soluble surfactant active's cetyl benzenesulfonic acid sodium, inorganic flocculating agent active silicic acid and
Water-soluble inorganic salt sodium sulphate, on the basis of super high molecular weight polyacrylamide weight, water soluble surfactant active it is effective into
Divide and account for the 20% of super high molecular weight polyacrylamide weight；The active ingredient of inorganic flocculating agent accounts for super high molecular weight polyacrylamide
With the 20% of water soluble surfactant active's gross weight；Water-soluble inorganic salt accounts for super high molecular weight polyacrylamide and water-soluble table
The 50% of face total surfactant weight.
Embodiment 4：
Remaining is the same as embodiment 1 in addition to V-44 addition is 0.02kg.As a result after polymerizeing 10h, temperature in the kettle reaches 72 DEG C,
Obtained product relative molecular mass is 14,600,000.
The super high molecular weight polyacrylamide prepared is prepared into compound poly- propionamide, including relative molecular mass is 1460
Ten thousand super high molecular weight polyacrylamides, water soluble surfactant active's cetyl benzenesulfonic acid sodium, inorganic flocculating agent active silicic acid and
Water-soluble inorganic salt sodium sulphate, on the basis of super high molecular weight polyacrylamide weight, water soluble surfactant active it is effective into
Divide and account for the 10% of super high molecular weight polyacrylamide weight；The active ingredient of inorganic flocculating agent accounts for super high molecular weight polyacrylamide
With the 10% of water soluble surfactant active's gross weight；Water-soluble inorganic salt accounts for super high molecular weight polyacrylamide and water-soluble table
The 25% of face total surfactant weight.
Embodiment 5：
Remaining is the same as embodiment 1 in addition to V-44 addition is 0.2kg.As a result after polyase 13 h, temperature in the kettle reaches 84 DEG C, obtains
The product relative molecular mass arrived is 13,280,000.
The super high molecular weight polyacrylamide prepared is prepared into compound poly- propionamide, including relative molecular mass is 328
Ten thousand super high molecular weight polyacrylamides, water soluble surfactant active's cetyl benzenesulfonic acid sodium, inorganic flocculating agent active silicic acid and
Water-soluble inorganic salt sodium sulphate, on the basis of super high molecular weight polyacrylamide weight, water soluble surfactant active it is effective into
Divide and account for the 5% of super high molecular weight polyacrylamide weight；The active ingredient of inorganic flocculating agent accounts for super high molecular weight polyacrylamide
With the 5% of water soluble surfactant active's gross weight；Water-soluble inorganic salt accounts for super high molecular weight polyacrylamide and water-soluble table
The 15% of face total surfactant weight.
Claims (6)
- A kind of 1. composite polyacrylamide for sewage disposal, it is characterised in that including super high molecular weight polyacrylamide and The percentage by weight of water soluble surfactant active, super high molecular weight polyacrylamide and water soluble surfactant active are 80~99：1 ~20.
- 2. the composite polyacrylamide according to claim 1 for sewage disposal, it is characterised in that the supra polymer Weight polyacrylamide relative molecular mass is 1.23 × 107~3.28 × 107。
- 3. the composite polyacrylamide according to claim 1 or 2 for sewage disposal, it is characterised in that including inorganic The ratio between gross weight of high-molecular compound, its weight and super high molecular weight polyacrylamide and surfactant active is 1 ~20:80~99.
- 4. the composite polyacrylamide according to claim 3 for sewage disposal, it is characterised in that including environment-friendly type water The ratio between gross weight of soluble inorganic salt, its weight and super high molecular weight polyacrylamide and surfactant active for 5~ 50:50~95.
- 5. the composite polyacrylamide according to claim 4 for sewage disposal, it is characterised in that super high molecular weight is gathered Acrylamide, surfactant and inorganic polymer are polyacrylamide, surfactant and the inorganic high score of same ion type Son.
- 6. the composite polyacrylamide according to claim 1 for sewage disposal, it is characterised in that the supra polymer The preparation method of weight polyacrylamide is：The acrylamide monomer aqueous solution, auxiliary agent that concentration is 24%, multiple are added in polymeric kettle Initiator is closed, is passed through high pure nitrogen, oxygen is driven and carries out adiabatic combined polymerization, is then granulated, dried, crushed and obtain final product, Added in polymeric kettle and be the 80% sodium acrylate monomers aqueous solution for the concentration of hydrolysis, and add raising relative molecular mass Chain extender C12~C24 fatty amines or borate family compound reaction product；The concentration of the mix monomer of acrylamide and sodium acrylate monomers aqueous solution composition is 10~40%, sodium acrylate monomers water The addition of solution is the 10~60% of mix monomer total amount；The addition of chain extender for mix monomer total amount 0.001~ 0.5%；Composite initiator is oxidation-reduction agent and azo-initiator, and the addition of oxidation-reduction agent is mix monomer total amount 0.0005~0.3%, the addition of azo-initiator is the 0.0002~0.1% of mix monomer total amount；Auxiliary agent is complexing agent and solubilizer, and the addition of complexing agent is the 0~0.6% of mix monomer total amount, the addition of solubilizer Measure as the 0.05~10% of mix monomer total amount；Wherein, oxidant is potassium peroxydisulfate or sodium peroxydisulfate or ammonium persulfate, reducing agent be sodium sulfite or sodium hydrogensulfite or Formaldehyde time sodium hydrogensulfite or the ammonium of tetramethyl second two or β-dimethylaminopropionitrile or monoethanolamine, azo-initiator are that azo two is different Butyronitrile or 2, double (2- amidine propanes) dihydrochlorides or 4 of 2 '-azo, double (4- cyanopentanoic acids) dihydrochlorides of 4 '-azo, complexing agent For ethylenediamine tetra-acetic acid or disodium ethylene diamine tetraacetate or tetrasodium ethylenediamine tetraacetate, solubilizer is urea or sodium formate or isopropyl Alcohol；Wherein, precipitation from aqueous solution initiation temperature is 3~25 DEG C, and polymerization time is 3~6h.
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| CN201710885702.6A CN107555567A (en) | 2017-09-27 | 2017-09-27 | A kind of composite polyacrylamide for sewage disposal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794690A (en) * | 2018-06-27 | 2018-11-13 | 合肥艾飞新材料有限公司 | A kind of preparation method of modified polyacrylamide material for water treatment |
| CN111704264A (en) * | 2020-06-03 | 2020-09-25 | 昆明理工大学 | Method for enhancing hydrophobic agglomeration of fine-grained kaolinite as suspended clay mineral in water body |
| CN116970248A (en) * | 2023-06-29 | 2023-10-31 | 湖南联塑科技实业有限公司 | Amphoteric polyacrylamide modified PVC drainage pipe and preparation method thereof |
| CN117417002A (en) * | 2023-10-08 | 2024-01-19 | 南昌市国昌环保科技有限公司 | Industrial preparation process of high-molecular water treatment agent |
-
2017
- 2017-09-27 CN CN201710885702.6A patent/CN107555567A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794690A (en) * | 2018-06-27 | 2018-11-13 | 合肥艾飞新材料有限公司 | A kind of preparation method of modified polyacrylamide material for water treatment |
| CN108794690B (en) * | 2018-06-27 | 2021-03-26 | 河北紫金化工产品有限公司 | Preparation method of modified polyacrylamide water treatment material |
| CN111704264A (en) * | 2020-06-03 | 2020-09-25 | 昆明理工大学 | Method for enhancing hydrophobic agglomeration of fine-grained kaolinite as suspended clay mineral in water body |
| CN116970248A (en) * | 2023-06-29 | 2023-10-31 | 湖南联塑科技实业有限公司 | Amphoteric polyacrylamide modified PVC drainage pipe and preparation method thereof |
| CN116970248B (en) * | 2023-06-29 | 2024-05-07 | 湖南联塑科技实业有限公司 | Amphoteric polyacrylamide modified PVC drainage pipe and preparation method thereof |
| CN117417002A (en) * | 2023-10-08 | 2024-01-19 | 南昌市国昌环保科技有限公司 | Industrial preparation process of high-molecular water treatment agent |
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Application publication date: 20180109 |