CN111268776A - Flocculant for petrochemical wastewater treatment and preparation method thereof - Google Patents
Flocculant for petrochemical wastewater treatment and preparation method thereof Download PDFInfo
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- CN111268776A CN111268776A CN201811471207.1A CN201811471207A CN111268776A CN 111268776 A CN111268776 A CN 111268776A CN 201811471207 A CN201811471207 A CN 201811471207A CN 111268776 A CN111268776 A CN 111268776A
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- flocculant
- petrochemical wastewater
- ferric sulfate
- water
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title abstract description 9
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims abstract description 40
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229920001661 Chitosan Polymers 0.000 claims abstract description 30
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 27
- 239000000440 bentonite Substances 0.000 claims abstract description 21
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 21
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920002472 Starch Polymers 0.000 claims abstract description 19
- 125000002091 cationic group Chemical group 0.000 claims abstract description 19
- 235000019698 starch Nutrition 0.000 claims abstract description 19
- 239000008107 starch Substances 0.000 claims abstract description 19
- 239000002351 wastewater Substances 0.000 claims abstract description 17
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 16
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 16
- 239000011707 mineral Substances 0.000 claims abstract description 16
- 239000010457 zeolite Substances 0.000 claims abstract description 16
- 229940037003 alum Drugs 0.000 claims abstract description 15
- 239000007864 aqueous solution Substances 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 32
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 26
- 239000000243 solution Substances 0.000 claims description 16
- 239000004005 microsphere Substances 0.000 claims description 6
- -1 alum Chemical compound 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 2
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims description 2
- 229920000768 polyamine Polymers 0.000 claims description 2
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 2
- FJWSMXKFXFFEPV-UHFFFAOYSA-N prop-2-enamide;hydrochloride Chemical compound Cl.NC(=O)C=C FJWSMXKFXFFEPV-UHFFFAOYSA-N 0.000 claims 1
- 229920001897 terpolymer Polymers 0.000 claims 1
- 239000008394 flocculating agent Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 239000003208 petroleum Substances 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000005189 flocculation Methods 0.000 abstract description 2
- 230000016615 flocculation Effects 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000000470 constituent Substances 0.000 description 4
- 230000003311 flocculating effect Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F1/5236—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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
Landscapes
- 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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a flocculant for petrochemical wastewater treatment and a preparation method thereof, wherein the flocculant for petrochemical wastewater treatment comprises the following components in parts by weight: 5-15 parts of cationic starch flocculant, 16-19 parts of zeolite mineral, 5-10 parts of polymeric ferric sulfate, 3-8 parts of polyaluminum chloride, 2-8 parts of chitosan derivative, 7-10 parts of bentonite, 3-5 parts of alum and 12-48 parts of water. The flocculant for treating the petroleum waste drilling mud prepared by the invention can destabilize oil and emulsified oil in sewage and adsorb the oil and the emulsified oil on flocculants, and bentonite can form coarse flocculants and settling velocity blocks by the adsorption bridging capacity among the micro flocculants, can adsorb organic matters or inorganic matters in petrochemical wastewater, has the characteristics of excellent flocculation effect, small addition amount, high purification efficiency and low cost, and has the characteristics of easily available raw materials, low price, simple preparation process and no three-waste discharge in the preparation process.
Description
Technical Field
The invention relates to a flocculant, in particular to a flocculant for petrochemical wastewater treatment and a preparation method thereof.
Background
Petrochemical wastewater is mostly a dispersion system containing clay, sewage and various additives, has large discharge amount and high suspended matter concentration, contains a large amount of soluble salt, various chemical additives, petroleum and the like, has great influence on soil structure without treatment and discharge, and is harmful to plant growth, wherein heavy metal ions, organic polymers which are not easy to degrade and the like enter a food chain through animals and plants, and also can be harmful to human health and life safety. The existing flocculating agent for treating petrochemical wastewater has an unsatisfactory treatment effect, is difficult to realize high-efficiency oil removal, and has a slow settling velocity, so that the development of a novel high-efficiency flocculating agent suitable for petrochemical wastewater is urgently needed.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, the present invention is directed to provide a flocculant for petrochemical wastewater treatment, which is used to solve the problem of poor treatment effect in the prior art, and to provide a method for preparing a flocculant for petrochemical wastewater treatment.
In order to attain the above and other related objects,
the invention provides a flocculant for treating petroleum waste drilling mud, which consists of the following components in parts by weight: 5-15 parts of cationic starch flocculant, 16-19 parts of zeolite mineral, 5-10 parts of polymeric ferric sulfate, 3-8 parts of polyaluminum chloride, 2-8 parts of chitosan derivative, 7-10 parts of bentonite, 3-5 parts of alum and 12-48 parts of water.
The cationic starch flocculant is a natural polymeric flocculant with excellent performance, cluster particles are large, the cationic starch flocculant and a chitosan derivative are mutually adsorbed to form a large flocculating constituent, bentonite is intercalated in the flocculating constituent and participates in load bridging to form a flocculating constituent with a larger volume, and the flocculating constituent generates a synergistic effect with polymeric ferric sulfate and polymeric aluminum chloride, so that the treatment effect in the petrochemical wastewater is better; the zeolite mineral is an aqueous alkali metal or alkaline earth metal aluminosilicate mineral having a three-dimensional framework composed of silicon (aluminum) oxygen tetrahedrons, and the framework has various sized cavities and channels therein, which function as filters and molecular sieves for selectively adsorbing or filtering organic or inorganic substances in wastewater.
Preferably, the flocculant for treating the petroleum waste drilling mud comprises the following components in parts by weight: 8-12 parts of cationic starch flocculant, 16-19 parts of zeolite mineral, 5-8 parts of polymeric ferric sulfate, 5-7 parts of polymeric aluminum chloride, 4-6 parts of chitosan derivative, 7-10 parts of bentonite, 3-5 parts of alum and 20-30 parts of water.
Preferably, the composition comprises the following components in parts by weight: 10 parts of cationic starch flocculant, 18 parts of zeolite mineral, 5 parts of polymeric ferric sulfate, 5 parts of polymeric aluminum chloride, 6 parts of chitosan derivative, 9 parts of bentonite, 3 parts of alum and 37 parts of water.
Preferably, the cationic starch flocculant is starch-dimethyl diallyl ammonium chloride-acrylamide ternary graft copolymer.
Preferably, the bentonite is organic bentonite.
Preferably, the chitosan derivative is one or more of cross-linked chitosan microspheres, carboxymethyl chitosan, epichlorohydrin cross-linked chitosan microspheres, sodium tripolyphosphate cross-linked chitosan, magnetic chitosan microspheres and porous polyamine chitosan.
In a second aspect of the present invention, there is provided a method for preparing a flocculant for petrochemical wastewater treatment, comprising the steps of:
s1, adding a cationic starch flocculant into a proper amount of water, and stirring for 10-20 minutes to obtain a solution A;
s2, adding polymeric ferric sulfate into a proper amount of water, and stirring until the polymeric ferric sulfate is completely dissolved to obtain a polymeric ferric sulfate aqueous solution;
s3, adding polyaluminum chloride into a proper amount of water, and stirring until the polyaluminum chloride is completely dissolved to obtain a polyaluminum chloride aqueous solution;
s4, sequentially adding the chitosan derivative, bentonite, alum, zeolite minerals, the polymeric ferric sulfate aqueous solution obtained in the step S2 and the polymeric aluminum chloride aqueous solution obtained in the step S3 into the solution A obtained in the step S1, adding a proper amount of water, and stirring for 15-40 minutes to obtain the flocculant for treating petrochemical wastewater.
As mentioned above, the flocculant for petrochemical wastewater treatment and the preparation method thereof have the following beneficial effects:
1. the flocculant for petrochemical wastewater treatment has an excellent flocculation effect, and achieves the purpose of high-efficiency and rapid treatment.
2. After the flocculant for petrochemical wastewater treatment is put into petrochemical wastewater, oil and emulsified oil in the wastewater can be stably supported and adsorbed on flocculants, and the bentonite can ensure that adsorption bridging capacity among the tiny flocculants forms coarse flocculants and settling velocity blocks and can adsorb organic matters or inorganic matters in the petrochemical wastewater.
3. The flocculant for petrochemical wastewater treatment has the characteristics of small dosage, high purification efficiency and low cost.
4. The flocculant for petrochemical wastewater treatment has the advantages of easily available raw materials, low price, simple preparation process and no three-waste discharge in the preparation process.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Example 1
S1, adding 5g of cationic starch flocculant into 8g of water, and stirring for 10-20 minutes to obtain a solution A;
s2, adding 8g of polymeric ferric sulfate into 10g of water, and stirring until the polymeric ferric sulfate is completely dissolved to obtain a polymeric ferric sulfate aqueous solution;
s3, adding 4g of polyaluminum chloride into 5g of water, and stirring until the polyaluminum chloride is completely dissolved to obtain a polyaluminum chloride aqueous solution;
s4, sequentially adding 2g of chitosan derivative, 7g of bentonite, 3g of alum, 16g of zeolite mineral, the polymeric ferric sulfate aqueous solution obtained in the step S2 and the polymeric aluminum chloride aqueous solution obtained in the step S3 into the solution A obtained in the step S1, adding 5g of water, and stirring for 15 minutes to obtain the flocculant for treating petrochemical wastewater.
Example 2
S1, adding 15g of cationic starch flocculant into 21g of water, and stirring for 10-20 minutes to obtain a solution A;
s2, adding 9g of polymeric ferric sulfate into 12g of water, and stirring until the polymeric ferric sulfate is completely dissolved to obtain a polymeric ferric sulfate aqueous solution;
s3, adding 8g of polyaluminum chloride into 10g of water, and stirring until the polyaluminum chloride is completely dissolved to obtain a polyaluminum chloride aqueous solution;
s4, sequentially adding 8g of chitosan derivative, 10g of bentonite, 4g of alum, 19g of zeolite mineral, the polymeric ferric sulfate aqueous solution obtained in the step S2 and the polymeric aluminum chloride aqueous solution obtained in the step S3 into the solution A obtained in the step S1, adding 5g of water, and stirring for 40 minutes to obtain the flocculant for treating petrochemical wastewater.
Example 3
S1, adding 10g of cationic starch flocculant into 15g of water, and stirring for 10-20 minutes to obtain a solution A;
s2, adding 10g of polymeric ferric sulfate into 16g of water, and stirring until the polymeric ferric sulfate is completely dissolved to obtain a polymeric ferric sulfate aqueous solution;
s3, adding 8g of polyaluminum chloride into 12g of water, and stirring until the polyaluminum chloride is completely dissolved to obtain a polyaluminum chloride aqueous solution;
s4, adding 7g of chitosan derivative, 7g of bentonite, 5g of alum, 18g of zeolite mineral, the polymeric ferric sulfate aqueous solution obtained in the step S2 and the polymeric aluminum chloride aqueous solution obtained in the step S3 into the solution A obtained in the step S1 in sequence, adding 5g of water, and stirring for 35 minutes to obtain the flocculant for treating petrochemical wastewater.
Example 4
S1, adding 8g of cationic starch flocculant into 12g of water, and stirring for 10-20 minutes to obtain a solution A;
s2, adding 5g of polymeric ferric sulfate into 8g of water, and stirring until the polymeric ferric sulfate is completely dissolved to obtain a polymeric ferric sulfate aqueous solution;
s3, adding 8g of polyaluminum chloride into 10g of water, and stirring until the polyaluminum chloride is completely dissolved to obtain a polyaluminum chloride aqueous solution;
s4, sequentially adding 4g of chitosan derivative, 8g of bentonite, 3g of alum, 17g of zeolite mineral, the polymeric ferric sulfate aqueous solution obtained in the step S2 and the polymeric aluminum chloride aqueous solution obtained in the step S3 into the solution A obtained in the step S1, adding 4g of water, and stirring for 27 minutes to obtain the flocculant for treating petrochemical wastewater.
Example 5
S1, adding 6g of cationic starch flocculant into 9g of water, and stirring for 10-20 minutes to obtain a solution A;
s2, adding 7g of polymeric ferric sulfate into 10g of water, and stirring until the polymeric ferric sulfate is completely dissolved to obtain a polymeric ferric sulfate aqueous solution;
s3, adding 3g of polyaluminum chloride into 5g of water, and stirring until the polyaluminum chloride is completely dissolved to obtain a polyaluminum chloride aqueous solution;
s4, sequentially adding 3g of chitosan derivative, 8g of bentonite, 4g of alum, 16g of zeolite mineral, the polymeric ferric sulfate aqueous solution obtained in the step S2 and the polymeric aluminum chloride aqueous solution obtained in the step S3 into the solution A obtained in the step S1, adding 5g of water, and stirring for 14 minutes to obtain the flocculant for treating petrochemical wastewater.
Example 6
S1, adding 10g of cationic starch flocculant into 15g of water, and stirring for 10-20 minutes to obtain a solution A;
s2, adding 5g of polymeric ferric sulfate into 8g of water, and stirring until the polymeric ferric sulfate is completely dissolved to obtain a polymeric ferric sulfate aqueous solution;
s3, adding 5g of polyaluminum chloride into 10g of water, and stirring until the polyaluminum chloride is completely dissolved to obtain a polyaluminum chloride aqueous solution;
s4, sequentially adding 6g of chitosan derivative, 9g of bentonite, 3g of alum, 18g of zeolite mineral, the polymeric ferric sulfate aqueous solution obtained in the step S2 and the polymeric aluminum chloride aqueous solution obtained in the step S3 into the solution A obtained in the step S1, adding 4g of water, and stirring for 22 minutes to obtain the flocculant for treating petrochemical wastewater.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. The flocculant for petrochemical wastewater treatment is characterized by comprising the following components in parts by weight: 5-15 parts of cationic starch flocculant, 16-19 parts of zeolite mineral, 5-10 parts of polymeric ferric sulfate, 3-8 parts of polyaluminum chloride, 2-8 parts of chitosan derivative, 7-10 parts of bentonite, 3-5 parts of alum and 12-48 parts of water.
2. The flocculant for petrochemical wastewater treatment according to claim 1, which is composed of the following components in parts by weight: 8-12 parts of cationic starch flocculant, 16-19 parts of zeolite mineral, 5-8 parts of polymeric ferric sulfate, 5-7 parts of polymeric aluminum chloride, 4-6 parts of chitosan derivative, 7-10 parts of bentonite, 3-5 parts of alum and 20-30 parts of water.
3. The flocculant for petrochemical wastewater treatment according to claim 1, which is composed of the following components in parts by weight: 10 parts of cationic starch flocculant, 18 parts of zeolite mineral, 5 parts of polymeric ferric sulfate, 5 parts of polymeric aluminum chloride, 6 parts of chitosan derivative, 9 parts of bentonite, 3 parts of alum and 37 parts of water.
4. The flocculant for petrochemical wastewater treatment according to claim 1, wherein the cationic starch flocculant is a starch-dimethyldiallylammonium chloride-acrylamide terpolymer.
5. The flocculant for petrochemical wastewater treatment according to claim 1, wherein the bentonite is an organobentonite.
6. The flocculant for petrochemical wastewater treatment according to claim 1, wherein the chitosan derivative is one or more of crosslinked chitosan microspheres, carboxymethyl chitosan, epichlorohydrin crosslinked chitosan microspheres, sodium tripolyphosphate crosslinked chitosan, magnetic chitosan microspheres, and porous polyamine chitosan.
7. A method for preparing a flocculant for petrochemical wastewater treatment according to any one of claims 1 to 4, comprising the steps of:
s1, adding a cationic starch flocculant into a proper amount of water, and stirring for 10-20 minutes to obtain a solution A;
s2, adding polymeric ferric sulfate into a proper amount of water, and stirring until the polymeric ferric sulfate is completely dissolved to obtain a polymeric ferric sulfate aqueous solution;
s3, adding polyaluminum chloride into a proper amount of water, and stirring until the polyaluminum chloride is completely dissolved to obtain a polyaluminum chloride aqueous solution;
s4, sequentially adding the chitosan derivative, bentonite, alum, zeolite minerals, the polymeric ferric sulfate aqueous solution obtained in the step S2 and the polymeric aluminum chloride aqueous solution obtained in the step S3 into the solution A obtained in the step S1, adding a proper amount of water, and stirring for 15-40 minutes to obtain the flocculant for treating petrochemical wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811471207.1A CN111268776A (en) | 2018-12-04 | 2018-12-04 | Flocculant for petrochemical wastewater treatment and preparation method thereof |
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| CN201811471207.1A CN111268776A (en) | 2018-12-04 | 2018-12-04 | Flocculant for petrochemical wastewater treatment and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111995222A (en) * | 2020-09-24 | 2020-11-27 | 神美科技有限公司 | Sludge conditioner |
| CN112062244A (en) * | 2020-09-02 | 2020-12-11 | 河北皓清环保科技有限公司 | Efficient flocculating settling water treatment agent and preparation method thereof |
| CN116059701A (en) * | 2023-03-06 | 2023-05-05 | 淄博亮杰环保科技有限公司 | Water purifying agent for sewage treatment and preparation method and application thereof |
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| CN105967261A (en) * | 2016-05-26 | 2016-09-28 | 许婷 | Sewage treatment agent special for printing and dyeing wastewater and preparation method of sewage treatment agent |
| CN108773883A (en) * | 2018-06-28 | 2018-11-09 | 芜湖市棠华建材科技有限公司 | Sewage composite flocculation agent |
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| CN104891618A (en) * | 2015-06-05 | 2015-09-09 | 杨强 | Novel compound water treatment flocculant as well as preparation method and application thereof |
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| CN105967261A (en) * | 2016-05-26 | 2016-09-28 | 许婷 | Sewage treatment agent special for printing and dyeing wastewater and preparation method of sewage treatment agent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112062244A (en) * | 2020-09-02 | 2020-12-11 | 河北皓清环保科技有限公司 | Efficient flocculating settling water treatment agent and preparation method thereof |
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| CN116059701A (en) * | 2023-03-06 | 2023-05-05 | 淄博亮杰环保科技有限公司 | Water purifying agent for sewage treatment and preparation method and application thereof |
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