CN117683185A - Flocculant for sewage treatment and preparation method thereof - Google Patents
Flocculant for sewage treatment and preparation method thereof Download PDFInfo
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- CN117683185A CN117683185A CN202410153423.0A CN202410153423A CN117683185A CN 117683185 A CN117683185 A CN 117683185A CN 202410153423 A CN202410153423 A CN 202410153423A CN 117683185 A CN117683185 A CN 117683185A
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- 239000010865 sewage Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- FZGFBJMPSHGTRQ-UHFFFAOYSA-M trimethyl(2-prop-2-enoyloxyethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCOC(=O)C=C FZGFBJMPSHGTRQ-UHFFFAOYSA-M 0.000 claims abstract description 18
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000006068 polycondensation reaction Methods 0.000 claims abstract description 4
- 239000008367 deionised water Substances 0.000 claims description 35
- 229910021641 deionized water Inorganic materials 0.000 claims description 35
- 238000006243 chemical reaction Methods 0.000 claims description 34
- 238000003756 stirring Methods 0.000 claims description 24
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 22
- 239000007864 aqueous solution Substances 0.000 claims description 21
- 229960000583 acetic acid Drugs 0.000 claims description 11
- 229920001577 copolymer Polymers 0.000 claims description 11
- 239000012362 glacial acetic acid Substances 0.000 claims description 11
- 239000002608 ionic liquid Substances 0.000 claims description 11
- XUHHZNLAPUWRHH-UHFFFAOYSA-N 3-butyl-1-methyl-1,2-dihydroimidazol-1-ium;methanesulfonate Chemical compound CS(O)(=O)=O.CCCCN1CN(C)C=C1 XUHHZNLAPUWRHH-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 150000003384 small molecules Chemical class 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 229920000578 graft copolymer Polymers 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 20
- 230000035484 reaction time Effects 0.000 description 8
- 238000004090 dissolution Methods 0.000 description 5
- 239000008394 flocculating agent Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- LTQUKYUESOASRB-UHFFFAOYSA-N 1-butyl-3-methyl-2H-imidazole-2-sulfonic acid Chemical compound CN1C(N(C=C1)CCCC)S(=O)(=O)O LTQUKYUESOASRB-UHFFFAOYSA-N 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a flocculant for sewage treatment and a preparation method thereof, belonging to the technical field of water treatment. The flocculant is prepared by first preparing a first-generation polycondensate by a polycondensation reaction of 4-amino-1, 2-catechol hydrochloride and urotropine, and then grafting and modifying the first-generation polycondensate with acryloyloxyethyl trimethyl ammonium chloride. The flocculant prepared by the invention is a novel graft polymer flocculant, has excellent oil removal effect on oily sewage, has oil removal rate up to 98.5%, turbidity removal rate up to 98.4%, and has long-term storage stability.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a flocculant for sewage treatment and a preparation method thereof.
Background
The petroleum processing industry generates a large amount of oily sewage each year, and a large amount of polymers exist in the oilfield sewage, so that the interfacial tension between oil and water is weakened, and the oilfield sewage treatment difficulty is increased. Oily sewage is regarded as a common pollutant worldwide, and has the characteristics of strong toxicity, organic volatility, high carcinogenicity and the like; if not properly treated for direct discharge into water, it is undoubtedly a serious threat to the water ecosystem and human health. Therefore, it is important to find a simple and efficient processing method. The flocculation technology is widely applied to the treatment of oily sewage due to simple operation, good treatment effect and low cost, and the key point of flocculation is to select a proper flocculant, so that the traditional cationic flocculant has a plurality of defects when being singly used for treatment, and is difficult to adapt to the current sewage treatment requirement.
The Chinese patent with publication number of CN104355383A discloses a composite flocculant solution for treating port oily wastewater and a preparation method thereof, wherein the flocculant is a chitosan composite flocculant, the oil removal rate of oily wastewater is 71.24%, and the removal rate is less than 80%; and the long-term storage stability of the flocculant is also poor.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a flocculant for sewage treatment and a preparation method thereof.
In order to achieve the above object, the present invention is realized by the following technical scheme:
a flocculant for sewage treatment, the flocculant having a structural formula as shown in formula (I):
（I）；
wherein o, p, q, r is a natural number; the number average molecular weight of the flocculant is 6000-7000.
The flocculant is prepared by first preparing a first-generation polycondensate by a polycondensation reaction of 4-amino-1, 2-catechol hydrochloride and urotropine, and then grafting and modifying the first-generation polycondensate with acryloyloxyethyl trimethyl ammonium chloride.
A preparation method of a flocculant for sewage treatment comprises the following steps:
s1: adding deionized water, glacial acetic acid, 4-amino-1, 2-catechol hydrochloride and urotropine into a stirring reaction kettle in sequence, stirring and dissolving, heating to 65-75 ℃, reacting for 1-2 hours, cooling to 50-60 ℃, stopping stirring, layering, separating an aqueous solution from the bottom of the reaction kettle, and washing with deionized water for 3 times to obtain a brown-red oily copolymer, wherein the reaction equation is as follows:
s2: sequentially adding DMF, a catalyst C-94 and 1-butyl-3-methylimidazole methane sulfonate ionic liquid into a reaction kettle in the step S1, heating to 90-100 ℃, slowly dropwise adding an acryloyloxyethyl trimethyl ammonium chloride aqueous solution for 1-2h, reacting for 2-4h, cooling to 40-55 ℃ after the reaction is finished, removing small molecules and a solvent under 0.06MPa vacuum to obtain a viscous liquid, adding deionized water for dissolving to obtain a flocculant with the solid content of 40-50wt%, wherein the reaction equation is as follows:
where m=o+p+q+r.
In the step S1, the mass ratio of the deionized water to the glacial acetic acid to the 4-amino-1, 2-catechol hydrochloride to the urotropine is 10 (0.5-0.8), and the mass ratio of the deionized water to the glacial acetic acid to the 4-5 to the urotropine is 0.8-1.2.
In the step S2, the concentration of the acryloyloxyethyl trimethyl ammonium chloride aqueous solution is 60-75wt%.
In the step S2, the purity of the 1-butyl-3-methylimidazole methane sulfonate ionic liquid is 92-97%.
In the step S2, the added amount of DMF is the same as that of deionized water in the step S1.
In the step S2, the mass ratio of the DMF to the catalyst C-94 to the 1-butyl-3-methylimidazole sulfonate ionic liquid to the acryloyloxyethyl trimethyl ammonium chloride aqueous solution is 200 (1-1.5) (0.4-0.6) (80-110).
By adopting the technical scheme, the beneficial effects of the invention include:
(1) The invention firstly prepares a first generation polycondensate by the polycondensation reaction of 4-amino-1, 2-catechol hydrochloride and urotropine, then grafts and modifies the first generation polycondensate with acryloyloxyethyl trimethyl ammonium chloride to obtain the flocculant, and provides a specific preparation method of the flocculant.
(2) The flocculant prepared by the invention is a novel graft polymer flocculant, has excellent oil removal effect on oily sewage, and has long-term storage stability.
Detailed Description
The present invention is further described below with reference to examples, but the present invention is not limited to these examples.
Example 1
Flocculant for sewage treatment:
s1: sequentially adding 1kg of deionized water, 0.065kg of glacial acetic acid, 0.45kg of 4-amino-1, 2-catechol hydrochloride and 0.1kg of urotropine into a stirring reaction kettle, stirring and dissolving, heating to 70 ℃, reacting for 1.5h, cooling to 55 ℃, stopping stirring, layering, separating an aqueous solution from the bottom of the reaction kettle, and washing with deionized water for 3 times (each time using 0.5kg of deionized water) to obtain a brown-red oily copolymer;
s2: 1kg of DMF, 0.0065kg of catalyst C-94 and 0.0025kg of 1-butyl-3-methylimidazole methane sulfonate ionic liquid (purity 96%) are sequentially added into a reaction kettle in the step S1, the temperature is raised to 95 ℃, 0.50kg of acryloyloxyethyl trimethyl ammonium chloride aqueous solution (70 wt%) is slowly added dropwise, the reaction time is 1.5h, the reaction time is 3h, the temperature is reduced to 50 ℃ after the reaction is finished, small molecules and solvents are removed under the vacuum of 0.06MPa, a viscous liquid is obtained, 1.0kg of deionized water is added for dissolution, and a flocculant with the solid content of 47.4wt% and the number average molecular weight of 6542 is obtained.
Example 2
Flocculant for sewage treatment:
s1: sequentially adding 1kg of deionized water, 0.05kg of glacial acetic acid, 0.4kg of 4-amino-1, 2-catechol hydrochloride and 0.08kg of urotropine into a stirring reaction kettle, stirring and dissolving, heating to 65 ℃, reacting for 2 hours, cooling to 60 ℃, stopping stirring, layering, separating an aqueous solution from the bottom of the reaction kettle, and washing 3 times with deionized water (0.5 kg of deionized water is used each time) to obtain a brown-red oily copolymer;
s2: 1kg of DMF, 0.005kg of catalyst C-94 and 0.002kg of 1-butyl-3-methylimidazole methane sulfonate ionic liquid (purity 97%) are sequentially added into a reaction kettle in the step S1, the temperature is raised to 100 ℃, 0.40kg of acryloyloxyethyl trimethyl ammonium chloride aqueous solution (60 wt%) is slowly added dropwise, the reaction time is 2h, the reaction is carried out for 4h, the temperature is reduced to 55 ℃ after the reaction is finished, small molecules and solvents are removed under the vacuum of 0.06MPa, a viscous liquid is obtained, 0.8kg of deionized water is added for dissolution, and a flocculant with the solid content of 47.8wt% and the number average molecular weight of 6104 is obtained.
Example 3
Flocculant for sewage treatment:
s1: sequentially adding 1kg of deionized water, 0.08kg of glacial acetic acid, 0.5kg of 4-amino-1, 2-catechol hydrochloride and 0.12kg of urotropine into a stirring reaction kettle, stirring and dissolving, heating to 75 ℃, reacting for 1h, cooling to 50 ℃, stopping stirring, layering, separating an aqueous solution from the bottom of the reaction kettle, and washing 3 times with deionized water (0.5 kg of deionized water is used each time) to obtain a brown-red oily copolymer;
s2: 1kg of DMF, 0.0075kg of catalyst C-94 and 0.003kg of 1-butyl-3-methylimidazole methane sulfonate ionic liquid (purity is 97%) are sequentially added into a reaction kettle in the step S1, the temperature is raised to 90 ℃, 0.55kg of acryloyloxyethyl trimethyl ammonium chloride aqueous solution (75 wt%) is slowly added dropwise, the reaction time is 1h, the reaction time is 2h, the temperature is reduced to 40 ℃ after the reaction is finished, small molecules and solvents are removed under the vacuum of 0.06MPa, a viscous liquid is obtained, 1.4kg of deionized water is added for dissolution, and the flocculant with the solid content of 42.5wt% and the number average molecular weight of 6983 is obtained.
Comparative example 1
Flocculant for sewage treatment:
s1: sequentially adding 1kg of deionized water, 0.05kg of glacial acetic acid, 0.38kg of 4-amino-1, 2-catechol hydrochloride and 0.08kg of urotropine into a stirring reaction kettle, stirring and dissolving, heating to 65 ℃, reacting for 2 hours, cooling to 60 ℃, stopping stirring, layering, separating an aqueous solution from the bottom of the reaction kettle, and washing 3 times with deionized water (0.5 kg of deionized water is used each time) to obtain a brown-red oily copolymer;
s2: 1kg of DMF, 0.005kg of catalyst C-94 and 0.002kg of 1-butyl-3-methylimidazole methane sulfonate ionic liquid (purity 97%) are sequentially added into a reaction kettle in the step S1, the temperature is raised to 100 ℃, 0.30kg of acryloyloxyethyl trimethyl ammonium chloride aqueous solution (60 wt%) is slowly added dropwise, the reaction time is 2 hours, the reaction is completed, the temperature is reduced to 55 ℃ after the reaction is completed, small molecules and solvents are removed under the vacuum of 0.06MPa, a viscous liquid is obtained, 0.8kg of deionized water is added for dissolution, and the flocculant with the number average molecular weight of 5724 is obtained.
Comparative example 2
Flocculant for sewage treatment:
s1: sequentially adding 1kg of deionized water, 0.08kg of glacial acetic acid, 0.5kg of 4-amino-1, 2-catechol hydrochloride and 0.12kg of urotropine into a stirring reaction kettle, stirring and dissolving, heating to 75 ℃, reacting for 1.5h, cooling to 50 ℃, stopping stirring, layering, separating an aqueous solution from the bottom of the reaction kettle, and washing with deionized water for 3 times (each time using 0.5kg of deionized water) to obtain a brown red oily copolymer;
s2: 1kg of DMF, 0.0075kg of catalyst C-94 and 0.003kg of 1-butyl-3-methylimidazole methane sulfonate ionic liquid (purity is 97%) are sequentially added into the reaction kettle in the step S1, the temperature is raised to 90 ℃, 0.65kg of acryloyloxyethyl trimethyl ammonium chloride aqueous solution (75 wt%) is slowly added dropwise, the reaction time is 1h, the reaction time is 4h, the temperature is reduced to 40 ℃ after the reaction is finished, small molecules and solvents are removed under the vacuum of 0.06MPa, a viscous liquid is obtained, 1.4kg of deionized water is added for dissolution, and the flocculant with the number average molecular weight of 7438 is obtained.
Comparative example 3
Adding 1kg of deionized water, 0.065kg of glacial acetic acid, 0.45kg of 4-amino-1, 2-catechol hydrochloride and 0.1kg of urotropine into a stirring reaction kettle in sequence, stirring and dissolving, heating to 70 ℃, reacting for 1.5h, cooling to 55 ℃, stopping stirring, layering, separating an aqueous solution from the bottom of the reaction kettle, and washing with deionized water for 3 times (each time using 0.5kg of deionized water), thereby obtaining the brown-red oily copolymer serving as a flocculant.
Comparative example 4
The reddish brown oily copolymer prepared in step S1 of example 1 was uniformly mixed with 0.50kg of an aqueous acryloyloxyethyl trimethylammonium chloride solution (70 wt%) to serve as a flocculant.
Comparative example 5
0.45kg of 4-amino-1, 2-catechol hydrochloride, 0.1kg of urotropine, 0.50kg of acryloyloxyethyl trimethyl ammonium chloride aqueous solution (70 wt%) and 1.0kg of deionized water were mixed at normal temperature to prepare a flocculant.
Comparative example 6
Flocculant prepared by the method of Chinese patent application example 7 with publication number of CN 104355383A.
Comparative example 7
Flocculant prepared by the method of Chinese patent application example 1 with publication number of CN 117264139A.
The flocculants prepared in the examples and the comparative examples were stored for 0 day and 30 days at 40 ℃ respectively, turbidity and oil removal rate were measured, the dosage of the agent was 30mg/L, oily sewage in a sewage treatment station was used as a flocculant treatment object, the oil content was 225mg/L, turbidity was 562NTU, and the measurement results are shown in Table 1.
The oil removal rate is measured according to the requirements of spectrophotometry (SY/T0530-2011) of the oil content measuring method in oilfield produced water of the Chinese natural gas industry standard; measuring residual turbidity with WGZ-3 photoelectric turbidimeter, repeating for 3 times, taking the average value of 3 times as final residual turbidity, and recording as T 1 The turbidity measured on the raw water sample before the treatment without adding flocculant is recorded as T 0 Turbidity removal rate= (T 0 -T 1 ）/T 0 。
TABLE 1
| Project | Oil removal rate (storage for 0 days) | Turbidity removal rate (0 days of storage) | Oil removal rate (30 days of storage) | Turbidity removal rate (30 days of storage) |
| Example 1 | 98.5 | 98.4 | 96.1 | 95.9 |
| Example 2 | 98.1 | 97.8 | 95.4 | 95.0 |
| Example 3 | 98.3 | 97.9 | 95.7 | 95.7 |
| Comparative example 1 | 92.5 | 95.6 | 89.9 | 93.1 |
| Comparative example 2 | 90.5 | 93.4 | 88.2 | 90.2 |
| Comparative example 3 | 60.7 | 71.5 | 59.8 | 67.1 |
| Comparative example 4 | 78.5 | 82.6 | 70.2 | 74.6 |
| Comparative example 5 | 77.3 | 82.4 | 69.1 | 75.2 |
| Comparative example 6 | 80.8 | 90.8 | 73.8 | 87.6 |
| Comparative example 7 | 81.2 | 97.8 | 77.6 | 96.8 |
As can be seen from examples 1 to 3 of Table 1, the polymeric flocculant having a number average molecular weight of 6000 to 7000 prepared in the present invention has excellent oil removal rate and turbidity removal rate, and maintains not less than 95% of oil removal rate and 95% of turbidity removal rate after being stored at 40℃for 30 days.
Comparative examples 1 and 2 are flocculants having number average molecular weights of 5724 and 7438, respectively, and it can be seen from Table 1 that the oil removal rate is less than 93%, the turbidity removal rate is less than 96%, and the overall oil removal and turbidity removal rates are inferior to those of examples 1 to 3.
Comparative examples 3, 4 and 5 are comparative examples in which the copolymer prepared in step S1 of example 1 was used as a flocculant, the copolymer prepared in step S1 of example 1 was uniformly mixed with an aqueous solution (70 wt%) of acryloyloxyethyl trimethylammonium chloride and the key raw materials of example 1 were uniformly mixed to obtain flocculants, and the oil removal and turbidity removal rates were lower than 80% and 85%, respectively, as can be seen from the data in Table 1.
Comparative example 6 and comparative example 7 are prior art disclosed flocculants, and it can be seen from the data of table 1 that the oil removal rate of both flocculants is less than 82%.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention; however, those skilled in the art can make various changes, modifications and variations equivalent to the above-described embodiments without departing from the scope of the technical solution of the present invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the present invention.
Claims (8)
1. A flocculant for sewage treatment, which is characterized by having a structural formula shown in a formula (I):
（I）；
wherein o, p, q, r is a natural number; the number average molecular weight of the flocculant is 6000-7000.
2. The flocculant for sewage treatment according to claim 1, wherein the flocculant is prepared by first preparing a first-generation polycondensate from 4-amino-1, 2-catechol hydrochloride and urotropine through a polycondensation reaction, and then grafting and modifying the first-generation polycondensate with acryloyloxyethyl trimethyl ammonium chloride.
3. A method for preparing the flocculant for sewage treatment as claimed in claim 1, comprising the steps of:
s1: adding deionized water, glacial acetic acid, 4-amino-1, 2-catechol hydrochloride and urotropine into a stirring reaction kettle in sequence, stirring and dissolving, heating to 65-75 ℃, reacting for 1-2 hours, cooling to 50-60 ℃, stopping stirring, layering, separating an aqueous solution from the bottom of the reaction kettle, and washing 3 times with deionized water to obtain a brown-red oily copolymer;
s2: sequentially adding DMF, a catalyst C-94 and 1-butyl-3-methylimidazole methane sulfonate ionic liquid into a reaction kettle in the step S1, heating to 90-100 ℃, slowly dropwise adding an acryloyloxyethyl trimethyl ammonium chloride aqueous solution for 1-2h, reacting for 2-4h, cooling to 40-55 ℃ after the reaction is finished, removing small molecules and a solvent under the vacuum of 0.06MPa to obtain a viscous liquid, and adding deionized water for dissolving to obtain a flocculant with the solid content of 40-50 wt%.
4. The method for preparing a flocculant for sewage treatment according to claim 3, wherein in the step S1, the mass ratio of deionized water, glacial acetic acid, 4-amino-1, 2-catechol hydrochloride and urotropine is 10 (0.5-0.8): 4-5): 0.8-1.2.
5. The method for producing a flocculant for sewage treatment according to claim 3, wherein in step S2, the concentration of the aqueous solution of acryloyloxyethyl trimethyl ammonium chloride is 60 to 75wt%.
6. The method for preparing a flocculant for sewage treatment according to claim 3, wherein in the step S2, the purity of the 1-butyl-3-methylimidazole methane sulfonate ionic liquid is 92 to 97%.
7. The method for preparing a flocculant for sewage treatment according to claim 3, wherein in the step S2, the DMF is added in the same amount as the deionized water in the step S1.
8. The method for preparing a flocculant for sewage treatment according to claim 3, wherein in the step S2, the mass ratio of DMF, catalyst C-94, 1-butyl-3-methylimidazole methane sulfonate ionic liquid and acryloyloxyethyl trimethyl ammonium chloride aqueous solution is 200 (1-1.5): 0.4-0.6): 80-110.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1236748A1 (en) * | 2001-02-22 | 2002-09-04 | Ecole Polytechnique Federale De Lausanne | Polymer flocculents and preparation thereof |
| JP2014159018A (en) * | 2013-02-20 | 2014-09-04 | Mitsubishi Rayon Co Ltd | Flocculation method of oil inclusion cleaning waste water |
| CN104355383A (en) * | 2014-11-25 | 2015-02-18 | 天津水运工程勘察设计院 | Composite flocculant solution for treating port oily wastewater and preparation method of composite flocculant solution |
| CN107879447A (en) * | 2017-12-25 | 2018-04-06 | 宁波科邦华诚技术转移服务有限公司 | A kind of preparation method for being used to handle oil-polluted water flocculant |
| CN110921843A (en) * | 2019-12-12 | 2020-03-27 | 佛山科学技术学院 | Preparation method of polymer composite flocculant for printing and dyeing sewage |
| CN114904516A (en) * | 2021-02-06 | 2022-08-16 | 中国科学院青岛生物能源与过程研究所 | Method for preparing carbon carrier supported platinum-based nanoparticle catalyst by aid of functional small molecules |
| CN116675318A (en) * | 2023-07-17 | 2023-09-01 | 重庆工商大学 | Preparation method of flocculant for oily wastewater treatment |
| CN117264139A (en) * | 2023-11-23 | 2023-12-22 | 山东万佳环境工程有限公司 | Flocculant for wastewater treatment, preparation method and application thereof |
| CN117362520A (en) * | 2023-09-18 | 2024-01-09 | 青岛亿天环保科技有限公司 | Flocculant for sewage treatment and preparation method thereof |
| CN117362519A (en) * | 2023-09-18 | 2024-01-09 | 青岛亿天环保科技有限公司 | Sewage flocculant and preparation method and application thereof |
-
2024
- 2024-02-04 CN CN202410153423.0A patent/CN117683185B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1236748A1 (en) * | 2001-02-22 | 2002-09-04 | Ecole Polytechnique Federale De Lausanne | Polymer flocculents and preparation thereof |
| JP2014159018A (en) * | 2013-02-20 | 2014-09-04 | Mitsubishi Rayon Co Ltd | Flocculation method of oil inclusion cleaning waste water |
| CN104355383A (en) * | 2014-11-25 | 2015-02-18 | 天津水运工程勘察设计院 | Composite flocculant solution for treating port oily wastewater and preparation method of composite flocculant solution |
| CN107879447A (en) * | 2017-12-25 | 2018-04-06 | 宁波科邦华诚技术转移服务有限公司 | A kind of preparation method for being used to handle oil-polluted water flocculant |
| CN110921843A (en) * | 2019-12-12 | 2020-03-27 | 佛山科学技术学院 | Preparation method of polymer composite flocculant for printing and dyeing sewage |
| CN114904516A (en) * | 2021-02-06 | 2022-08-16 | 中国科学院青岛生物能源与过程研究所 | Method for preparing carbon carrier supported platinum-based nanoparticle catalyst by aid of functional small molecules |
| CN116675318A (en) * | 2023-07-17 | 2023-09-01 | 重庆工商大学 | Preparation method of flocculant for oily wastewater treatment |
| CN117362520A (en) * | 2023-09-18 | 2024-01-09 | 青岛亿天环保科技有限公司 | Flocculant for sewage treatment and preparation method thereof |
| CN117362519A (en) * | 2023-09-18 | 2024-01-09 | 青岛亿天环保科技有限公司 | Sewage flocculant and preparation method and application thereof |
| CN117264139A (en) * | 2023-11-23 | 2023-12-22 | 山东万佳环境工程有限公司 | Flocculant for wastewater treatment, preparation method and application thereof |
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