CN107963701A - One kind sustained release flocculant and preparation method thereof - Google Patents
One kind sustained release flocculant and preparation method thereof Download PDFInfo
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- CN107963701A CN107963701A CN201711293548.XA CN201711293548A CN107963701A CN 107963701 A CN107963701 A CN 107963701A CN 201711293548 A CN201711293548 A CN 201711293548A CN 107963701 A CN107963701 A CN 107963701A
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- flocculant
- sustained release
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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
-
- 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
-
- 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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- 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 belongs to technical field of sewage, more particularly to a kind of sustained release flocculant and preparation method thereof, is sustained flocculant, includes the raw material of following parts by weight：Polyvinylpyrrolidone：12 16 parts；Polyaluminium sulfate：14 20 parts；Styrene sulfonate：16 25 parts；Magnesium stearate：48 parts；Be sustained flocculant preparation method, comprise the following steps, S1, by the volume ratio be 1:50 70 polyvinylpyrrolidone is pressed and organic solvent mixing, is heated to 80 90 DEG C, stirs evenly；S2, add the styrene sulfonate, polyaluminium sulfate into the mixture of step 1, under the conditions of 80 90 DEG C, continues heating stirring；S3, add the magnesium stearate into the mixture of step 2, under the conditions of 80 90 DEG C, continues heating stirring；S4, by step 3 gained mixture filter, remove residual solvent；The sustained release flocculant of the present invention can be launched once, and flocculating effect is persistently played in sewage, and concentration of suspension (SS) removal efficiency is high；Use scope is wide, suitable for the sewage of high salt concentration.
Description
Technical field
The invention belongs to technical field of sewage, more particularly to a kind of sustained release flocculant and preparation method thereof.
Background technology
Flocculant is mainly used in feedwater and sewage treatment field, mainly with band in just (negative) electrical group and water
Have negative (just) it is electrical to be difficult to separated some particles or particle close to each other, reduce its potential, be at unstable shape
State, and using its aggregation property these particles are concentrated, and separated by physics or chemical method.
China 200810022487.8 discloses slow release composite flocculant, is in granular form, contains in the flocculant particle
The polyacrylamide coated by soluble coating, remaining is aluminium salt and molysite；It is described solubility coating for starch, gelatine or
One of soluble cellulose or two or more mixtures.The slow release composite flocculant, its composition by weight percentage are：
Aluminium salt 40-60%, molysite 15-30%, polyacrylamide 1-10%, soluble coating 1-5%；But the flocculant needs less salt
Under the conditions of use, hypersaline environment can influence its flocculation.
The content of the invention
The present invention solves above-mentioned technical problem existing in the prior art, there is provided one kind sustained release flocculant and its preparation side
Method.
To solve the above problems, technical scheme is as follows：
One kind sustained release flocculant, includes the raw material of following parts by weight：
Polyvinylpyrrolidone：12-16 parts；
Polyaluminium sulfate：14-20 parts；
Styrene sulfonate：16-25 parts；
Magnesium stearate：4-8 parts.
The preparation method of flocculant is sustained, is comprised the following steps,
S1, by the volume ratio be 1:The polyvinylpyrrolidone of 50-70 is pressed and organic solvent mixing, is heated to 80-90
DEG C, stir evenly；
S2, add the styrene sulfonate, polyaluminium sulfate into the mixture of step 1, under the conditions of 80-90 DEG C, after
Continuous heating stirring；
S3, add the magnesium stearate into the mixture of step 2, under the conditions of 80-90 DEG C, continues heating stirring；
S4, by step 3 gained mixture filter, remove residual solvent, be made sustained release flocculant.
Preferably, the organic solvent of the step 1 is any in ethylenediamine, diisopropylamine, triethanolamine.
Preferably, when the mixing time of the step 2 is 1-2 small, mixing speed 60-80rpm.
Preferably, when the mixing time of the step 3 is 2-4 small, mixing speed 60-80rpm.
Relative to the prior art, advantages of the present invention is as follows,
The sustained release flocculant of the present invention can be launched once, and flocculating effect, concentration of suspension (SS) are persistently played in sewage
Removal efficiency is high；Use scope is wide, suitable for the sewage of high salt concentration；
The technique that the present invention prepares sustained release flocculant is simple, mild condition, has wide answer in Industrial Waste Water Treatments
Use prospect.
Embodiment
Embodiment 1：
One kind sustained release flocculant, includes the raw material of following parts by weight：
Polyvinylpyrrolidone：14 parts；
Polyaluminium sulfate：17 parts；
Styrene sulfonate：21 parts；
Magnesium stearate：6 parts.
The preparation method of above-mentioned sustained release flocculant, comprises the following steps,
S1, by the volume ratio be 1:60 polyvinylpyrrolidone is pressed and ethylenediamine mixing, is heated to 80-90 DEG C, stirs
Mix uniformly；
S2, add the styrene sulfonate, polyaluminium sulfate into the mixture of step 1, under the conditions of 80-90 DEG C, after
Continuous heating stirring, when mixing time is 1.5 small, mixing speed 70rpm；
S3, add the magnesium stearate into the mixture of step 2, under the conditions of 80-90 DEG C, continues heating stirring, stirring
When time is 7 small, mixing speed 70rpm；
S4, by step 3 gained mixture filter, remove residual solvent, be made sustained release flocculant.
Embodiment 2：
One kind sustained release flocculant, includes the raw material of following parts by weight：
Polyvinylpyrrolidone：12 parts；
Polyaluminium sulfate：14 parts；
Styrene sulfonate：16 parts；
Magnesium stearate：4 parts.
The preparation method of above-mentioned sustained release flocculant, comprises the following steps,
S1, by the volume ratio be 1:50 polyvinylpyrrolidone is pressed and diisopropylamine mixing, is heated to 80-90 DEG C,
Stir evenly；
S2, add the styrene sulfonate, polyaluminium sulfate into the mixture of step 1, under the conditions of 80-90 DEG C, after
Continuous heating stirring, when mixing time is 1 small, mixing speed 60rpm；
S3, add the magnesium stearate into the mixture of step 2, under the conditions of 80-90 DEG C, continues heating stirring, stirring
When time is 2 small, mixing speed 60rpm；
S4, by step 3 gained mixture filter, remove residual solvent, be made sustained release flocculant.
Embodiment 3：
One kind sustained release flocculant, includes the raw material of following parts by weight：
Polyvinylpyrrolidone：16 parts；
Polyaluminium sulfate：20 parts；
Styrene sulfonate：25 parts；
Magnesium stearate：8 parts.
The preparation method of above-mentioned sustained release flocculant, comprises the following steps,
S1, by the volume ratio be 1:70 polyvinylpyrrolidone is pressed and triethanolamine mixing, is heated to 80-90 DEG C,
Stir evenly；
S2, add the styrene sulfonate, polyaluminium sulfate into the mixture of step 1, under the conditions of 80-90 DEG C, after
Continuous heating stirring, when mixing time is 2 small, mixing speed 80rpm；
S3, add the magnesium stearate into the mixture of step 2, under the conditions of 80-90 DEG C, continues heating stirring, stirring
When time is 4 small, mixing speed 80rpm；
S4, by step 3 gained mixture filter, remove residual solvent, be made sustained release flocculant.
Embodiment 4：
The Wastewater Sample that 3 parts of identical volumes are 1L is taken, adjusts pH to 7, each 1g of sustained release flocculant of Example 1-3,
Wastewater Sample is respectively used to, concentration of suspension (SS) removal efficiency situation is as follows：
1 concentration of suspension of embodiment (SS) removal efficiency is：97.1%；
2 concentration of suspension of embodiment (SS) removal efficiency is：92.2%；
3 concentration of suspension of embodiment (SS) removal efficiency is：94.6%.
It should be noted that above-described embodiment is only presently preferred embodiments of the present invention, it is not used for limiting the present invention's
Protection domain, the equivalent substitution or replacement made on the basis of the above belong to protection scope of the present invention.
Claims (5)
1. one kind sustained release flocculant, it is characterised in that include the raw material of following parts by weight：
Polyvinylpyrrolidone：12-16 parts；
Polyaluminium sulfate：14-20 parts；
Styrene sulfonate：16-25 parts；
Magnesium stearate：4-8 parts.
2. the preparation method of sustained release flocculant as claimed in claim 1, it is characterised in that the preparation method of flocculant is sustained,
Comprise the following steps,
S1, by the volume ratio be 1:The polyvinylpyrrolidone of 50-70 is pressed and organic solvent mixing, is heated to 80-90 DEG C, stirs
Mix uniformly；
S2, add the styrene sulfonate, polyaluminium sulfate into the mixture of step 1, under the conditions of 80-90 DEG C, continue plus
Thermal agitation；
S3, add the magnesium stearate into the mixture of step 2, under the conditions of 80-90 DEG C, continues heating stirring；
S4, by step 3 gained mixture filter, remove residual solvent, be made sustained release flocculant.
3. the preparation method of sustained release flocculant as claimed in claim 2, it is characterised in that the organic solvent of the step 1 is
It is any in ethylenediamine, diisopropylamine, triethanolamine.
4. the preparation method of sustained release flocculant as claimed in claim 2, it is characterised in that the mixing time of the step 2 is
When 1-2 is small, mixing speed 60-80rpm.
5. the preparation method of sustained release flocculant as claimed in claim 2, it is characterised in that the mixing time of the step 3 is
When 2-4 is small, mixing speed 60-80rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711293548.XA CN107963701A (en) | 2017-12-08 | 2017-12-08 | One kind sustained release flocculant and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711293548.XA CN107963701A (en) | 2017-12-08 | 2017-12-08 | One kind sustained release flocculant and preparation method thereof |
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| CN107963701A true CN107963701A (en) | 2018-04-27 |
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| CN201711293548.XA Pending CN107963701A (en) | 2017-12-08 | 2017-12-08 | One kind sustained release flocculant and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970162A (en) * | 2019-03-28 | 2019-07-05 | 浙江大学 | A kind of novel dephosphorization sustained release agent and preparation method thereof |
-
2017
- 2017-12-08 CN CN201711293548.XA patent/CN107963701A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970162A (en) * | 2019-03-28 | 2019-07-05 | 浙江大学 | A kind of novel dephosphorization sustained release agent and preparation method thereof |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180427 |