CN112374594A - Preparation method of flocculant for treating wastewater containing cyanuric acid - Google Patents
Preparation method of flocculant for treating wastewater containing cyanuric acid Download PDFInfo
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- CN112374594A CN112374594A CN202011245880.0A CN202011245880A CN112374594A CN 112374594 A CN112374594 A CN 112374594A CN 202011245880 A CN202011245880 A CN 202011245880A CN 112374594 A CN112374594 A CN 112374594A
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- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 239000002351 wastewater Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 57
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims abstract description 54
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 235000013162 Cocos nucifera Nutrition 0.000 claims abstract description 27
- 244000060011 Cocos nucifera Species 0.000 claims abstract description 27
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 27
- 229960004887 ferric hydroxide Drugs 0.000 claims abstract description 27
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 claims abstract description 27
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229920001661 Chitosan Polymers 0.000 claims abstract description 19
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229920001732 Lignosulfonate Polymers 0.000 claims abstract description 19
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 19
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 19
- 229920002472 Starch Polymers 0.000 claims abstract description 19
- 229960001484 edetic acid Drugs 0.000 claims abstract description 19
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 19
- 235000019698 starch Nutrition 0.000 claims abstract description 19
- 239000008107 starch Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 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 11
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims description 78
- 239000011259 mixed solution Substances 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 239000011812 mixed powder Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000010865 sewage Substances 0.000 abstract description 22
- 239000008394 flocculating agent Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000000243 solution Substances 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
- C02F1/5236—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
- C02F1/5263—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
- C02F1/54—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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The application belongs to the technical field of sewage treatment, and particularly relates to a preparation method of a flocculant for treating wastewater containing cyanuric acid, wherein the flocculant comprises the following raw materials in parts by weight: 5-10 parts of aluminum sulfate, 15-20 parts of ferric sulfate, 10-15 parts of ferric hydroxide, 5-10 parts of aluminum chloride, 20-25 parts of PFC, 20-25 parts of coconut shell carbon, 12-15 parts of starch, 5-8 parts of chitosan, 3-8 parts of lignosulfonate, 30-35 parts of water, 15-20 parts of polyacrylamide, 3-5 parts of methacrylic acid, 1-3 parts of sodium dodecyl sulfate, 1-3 parts of acetone, 5-10 parts of ethylene glycol, 3-5 parts of ethylene diamine tetraacetic acid and 5-10 parts of azobisisobutyronitrile.
Description
Technical Field
The application belongs to the technical field of sewage treatment, and particularly relates to a preparation method of a flocculant for treating wastewater containing cyanuric acid.
Background
In a water treatment method, flocculation is one of important methods, the existing flocculating agent is an inorganic flocculating agent or an organic flocculating agent, the inorganic flocculating agent has good decontamination effect, but the use conditions are harsh; the organic flocculant has mild use conditions but is selective for sewage treatment.
Disclosure of Invention
In order to solve the problems in the prior art, the application provides a preparation method of a flocculant for treating wastewater containing cyanuric acid, and the application is realized by the following scheme:
a preparation method of a flocculant for treating wastewater containing cyanuric acid comprises the following raw materials in parts by weight: 5-10 parts of aluminum sulfate, 15-20 parts of ferric sulfate, 10-15 parts of ferric hydroxide, 5-10 parts of aluminum chloride, 20-25 parts of PFC, 20-25 parts of coconut shell carbon, 12-15 parts of starch, 5-8 parts of chitosan, 3-8 parts of lignosulfonate, 30-35 parts of water, 15-20 parts of polyacrylamide, 3-5 parts of methacrylic acid, 1-3 parts of sodium dodecyl sulfate, 1-3 parts of acetone, 5-10 parts of ethylene glycol, 3-5 parts of ethylene diamine tetraacetic acid and 5-10 parts of azobisisobutyronitrile.
Preferably, the flocculant comprises the following raw materials in parts by weight: 8 parts of aluminum sulfate, 18 parts of ferric sulfate, 13 parts of ferric hydroxide, 8 parts of aluminum chloride, 23 parts of PFC (Power factor correction), 23 parts of coconut shell carbon, 14 parts of starch, 7 parts of chitosan, 6 parts of lignosulfonate, 33 parts of water, 17 parts of polyacrylamide, 45 parts of methacrylic acid, 2 parts of sodium dodecyl sulfate, 2 parts of acetone, 8 parts of ethylene glycol, 4 parts of ethylene diamine tetraacetic acid and 8 parts of azodiisobutyronitrile.
Preferably, the steps are as follows: (1) putting aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon into a ball mill, and grinding until the aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon pass through a 500-mesh sieve for later use; (2) adding starch, chitosan, lignosulfonate and water into the mixed powder obtained in the step (1), and stirring for 2 hours at the water bath temperature of 50-55 ℃ to obtain a mixed solution for later use; (3) adding acetone and ethylene glycol into the mixed solution obtained in the step (2), and uniformly stirring; (4) adding polyacrylamide, methacrylic acid, sodium dodecyl sulfate, ethylene diamine tetraacetic acid and azodiisobutyronitrile into the feed liquid obtained in the step (3), and uniformly stirring to obtain a flocculant wet blank; (5) and (5) drying the wet blank of the flocculant obtained in the step (4) for 5-6 hours to obtain the flocculant.
Preferably, the stirring temperature in the step (3) is 60-65 ℃, the stirring time is 1-2h, and the stirring speed is 200 r/min.
Preferably, the stirring temperature of the step (4) is 70-73 ℃, the stirring time is 2-3h, and the stirring speed is 500 r/min.
Preferably, the heating temperature of the step (5) is 60-65 ℃.
Has the advantages that: the preparation method is simple in preparation process, wide in application range, convenient to use, stable in effect and good in effect of removing the somberness in the sewage.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below.
Example 1
A preparation method of a flocculant for treating wastewater containing cyanuric acid comprises the following raw materials in parts by weight: 5 parts of aluminum sulfate, 15 parts of ferric sulfate, 10 parts of ferric hydroxide, 5 parts of aluminum chloride, 20 parts of PFC (Power factor correction), 20 parts of coconut shell carbon, 12 parts of starch, 5 parts of chitosan, 3 parts of lignosulfonate, 30 parts of water, 15 parts of polyacrylamide, 3 parts of methacrylic acid, 1 part of sodium dodecyl sulfate, 1 part of acetone, 5 parts of ethylene glycol, 3 parts of ethylene diamine tetraacetic acid and 5 parts of azodiisobutyronitrile.
Preferably, the steps are as follows: (1) putting aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon into a ball mill, and grinding until the aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon pass through a 500-mesh sieve for later use; (2) adding starch, chitosan, lignosulfonate and water into the mixed powder obtained in the step (1), and stirring for 2 hours at the water bath temperature of 50-55 ℃ to obtain a mixed solution for later use; (3) adding acetone and ethylene glycol into the mixed solution obtained in the step (2), and uniformly stirring; (4) adding polyacrylamide, methacrylic acid, sodium dodecyl sulfate, ethylene diamine tetraacetic acid and azodiisobutyronitrile into the feed liquid obtained in the step (3), and uniformly stirring to obtain a flocculant wet blank; (5) drying the wet blank of the flocculant obtained in the step (4) for 5 hours to obtain the flocculant;
preferably, the stirring temperature in the step (3) is 60 ℃, the stirring time is 1h, and the stirring speed is 200 r/min;
preferably, the stirring temperature in the step (4) is 70 ℃, the stirring time is 2 hours, and the stirring speed is 500 r/min;
preferably, the heating temperature of the step (5) is 60 ℃.
Placing the obtained flocculant in sewage with COD of 1500mg/L, BOD of 1400 mg/L, SS of 1200 mg/L at normal temperature, stirring for 1h at room temperature, and measuring various indexes of the treated sewage as follows: the COD is 39mg/L, BOD and 28 mg/L, SS and 8 mg/L, wherein the input amount of the flocculating agent is 3kg, and the sewage amount is 1 t.
Example 2
A preparation method of a flocculant for treating wastewater containing cyanuric acid comprises the following raw materials in parts by weight: 10 parts of aluminum sulfate, 20 parts of ferric sulfate, 15 parts of ferric hydroxide, 10 parts of aluminum chloride, 25 parts of PFC (Power factor correction), 25 parts of coconut shell carbon, 15 parts of starch, 8 parts of chitosan, 8 parts of lignosulfonate, 35 parts of water, 20 parts of polyacrylamide, 5 parts of methacrylic acid, 3 parts of sodium dodecyl sulfate, 3 parts of acetone, 10 parts of ethylene glycol, 5 parts of ethylene diamine tetraacetic acid and 10 parts of azodiisobutyronitrile.
Preferably, the steps are as follows: (1) putting aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon into a ball mill, and grinding until the aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon pass through a 500-mesh sieve for later use; (2) adding starch, chitosan, lignosulfonate and water into the mixed powder obtained in the step (1), and stirring for 2 hours at the water bath temperature of 50-55 ℃ to obtain a mixed solution for later use; (3) adding acetone and ethylene glycol into the mixed solution obtained in the step (2), and uniformly stirring; (4) adding polyacrylamide, methacrylic acid, sodium dodecyl sulfate, ethylene diamine tetraacetic acid and azodiisobutyronitrile into the feed liquid obtained in the step (3), and uniformly stirring to obtain a flocculant wet blank; (5) drying the wet blank of the flocculant obtained in the step (4) for 5-6 hours to obtain the flocculant
Preferably, the stirring temperature of the step (3) is 65 ℃, the stirring time is 2h, and the stirring speed is 200r/min
Preferably, the stirring temperature of the step (4) is 73 ℃, the stirring time is 3h, and the stirring speed is 500r/min
Preferably, the heating temperature of the step (5) is 65 ℃.
Placing the obtained flocculant in sewage with COD of 1450mg/L, BOD of 1330 mg/L, SS of 1155 mg/L at normal temperature, stirring for 1h at room temperature, and measuring various indexes of the treated sewage as follows: the COD is 25mg/L, BOD and 21 mg/L, SS and 8 mg/L, wherein the input amount of the flocculating agent is 5kg, and the sewage amount is 2 t.
Example 3
A preparation method of a flocculant for treating wastewater containing cyanuric acid comprises the following raw materials in parts by weight: the flocculant comprises the following raw materials in parts by weight: 8 parts of aluminum sulfate, 18 parts of ferric sulfate, 13 parts of ferric hydroxide, 8 parts of aluminum chloride, 23 parts of PFC (Power factor correction), 23 parts of coconut shell carbon, 14 parts of starch, 7 parts of chitosan, 6 parts of lignosulfonate, 33 parts of water, 17 parts of polyacrylamide, 45 parts of methacrylic acid, 2 parts of sodium dodecyl sulfate, 2 parts of acetone, 8 parts of ethylene glycol, 4 parts of ethylenediamine tetraacetic acid and 8 parts of azodiisobutyronitrile;
preferably, the steps are as follows: (1) putting aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon into a ball mill, and grinding until the aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon pass through a 500-mesh sieve for later use; (2) adding starch, chitosan, lignosulfonate and water into the mixed powder obtained in the step (1), and stirring for 2 hours at the water bath temperature of 50-55 ℃ to obtain a mixed solution for later use; (3) adding acetone and ethylene glycol into the mixed solution obtained in the step (2), and uniformly stirring; (4) adding polyacrylamide, methacrylic acid, sodium dodecyl sulfate, ethylene diamine tetraacetic acid and azodiisobutyronitrile into the feed liquid obtained in the step (3), and uniformly stirring to obtain a flocculant wet blank; (5) drying the wet blank of the flocculant obtained in the step (4) for 5-6 hours to obtain the flocculant;
preferably, the stirring temperature in the step (3) is 63 ℃, the stirring time is 1-2h, and the stirring speed is 200 r/min;
preferably, the stirring temperature in the step (4) is 72 ℃, the stirring time is 2-3h, and the stirring speed is 500 r/min;
preferably, the heating temperature of the step (5) is 63 ℃.
Placing the obtained flocculant in sewage with COD of 1550mg/L, BOD of 1410 mg/L, SS of 1230 mg/L at normal temperature, stirring for 1h at room temperature, and measuring various indexes of the treated sewage as follows: the COD is 17mg/L, BOD and 158 mg/L, SS and 6mg/L, wherein the input amount of the flocculating agent is 27kg, and the sewage amount is 10 t.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Example 1
A preparation method of a flocculant for treating wastewater containing cyanuric acid comprises the following raw materials in parts by weight: 5 parts of aluminum sulfate, 15 parts of ferric sulfate, 10 parts of ferric hydroxide, 5 parts of aluminum chloride, 20 parts of PFC (Power factor correction), 20 parts of coconut shell carbon, 12 parts of starch, 5 parts of chitosan, 3 parts of lignosulfonate, 30 parts of water, 15 parts of polyacrylamide, 3 parts of methacrylic acid, 1 part of sodium dodecyl sulfate, 1 part of acetone, 5 parts of ethylene glycol, 3 parts of ethylene diamine tetraacetic acid and 5 parts of azodiisobutyronitrile.
Preferably, the steps are as follows: (1) putting aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon into a ball mill, and grinding until the aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon pass through a 500-mesh sieve for later use; (2) adding starch, chitosan, lignosulfonate and water into the mixed powder obtained in the step (1), and stirring for 2 hours at the water bath temperature of 50-55 ℃ to obtain a mixed solution for later use; (3) adding acetone and ethylene glycol into the mixed solution obtained in the step (2), and uniformly stirring; (4) adding polyacrylamide, methacrylic acid, sodium dodecyl sulfate, ethylene diamine tetraacetic acid and azodiisobutyronitrile into the feed liquid obtained in the step (3), and uniformly stirring to obtain a flocculant wet blank; (5) drying the wet blank of the flocculant obtained in the step (4) for 5 hours to obtain the flocculant;
preferably, the stirring temperature in the step (3) is 60 ℃, the stirring time is 1h, and the stirring speed is 200 r/min;
preferably, the stirring temperature in the step (4) is 70 ℃, the stirring time is 2 hours, and the stirring speed is 500 r/min;
preferably, the heating temperature of the step (5) is 60 ℃.
Placing the obtained flocculant in sewage with COD of 1500mg/L, BOD of 1400 mg/L, SS of 1200 mg/L at normal temperature, stirring for 1h at room temperature, and measuring various indexes of the treated sewage as follows: the COD is 39mg/L, BOD and 28 mg/L, SS and 8 mg/L, wherein the input amount of the flocculating agent is 3kg, and the sewage amount is 1 t.
Example 2
A preparation method of a flocculant for treating wastewater containing cyanuric acid comprises the following raw materials in parts by weight: 10 parts of aluminum sulfate, 20 parts of ferric sulfate, 15 parts of ferric hydroxide, 10 parts of aluminum chloride, 25 parts of PFC (Power factor correction), 25 parts of coconut shell carbon, 15 parts of starch, 8 parts of chitosan, 8 parts of lignosulfonate, 35 parts of water, 20 parts of polyacrylamide, 5 parts of methacrylic acid, 3 parts of sodium dodecyl sulfate, 3 parts of acetone, 10 parts of ethylene glycol, 5 parts of ethylene diamine tetraacetic acid and 10 parts of azodiisobutyronitrile.
Preferably, the steps are as follows: (1) putting aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon into a ball mill, and grinding until the aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon pass through a 500-mesh sieve for later use; (2) adding starch, chitosan, lignosulfonate and water into the mixed powder obtained in the step (1), and stirring for 2 hours at the water bath temperature of 50-55 ℃ to obtain a mixed solution for later use; (3) adding acetone and ethylene glycol into the mixed solution obtained in the step (2), and uniformly stirring; (4) adding polyacrylamide, methacrylic acid, sodium dodecyl sulfate, ethylene diamine tetraacetic acid and azodiisobutyronitrile into the feed liquid obtained in the step (3), and uniformly stirring to obtain a flocculant wet blank; (5) drying the wet blank of the flocculant obtained in the step (4) for 5-6 hours to obtain the flocculant
Preferably, the stirring temperature of the step (3) is 65 ℃, the stirring time is 2h, and the stirring speed is 200r/min
Preferably, the stirring temperature of the step (4) is 73 ℃, the stirring time is 3h, and the stirring speed is 500r/min
Preferably, the heating temperature of the step (5) is 65 ℃.
Placing the obtained flocculant in sewage with COD of 1450mg/L, BOD of 1330 mg/L, SS of 1155 mg/L at normal temperature, stirring for 1h at room temperature, and measuring various indexes of the treated sewage as follows: the COD is 25mg/L, BOD and 21 mg/L, SS and 8 mg/L, wherein the input amount of the flocculating agent is 5kg, and the sewage amount is 2 t.
Example 3
A preparation method of a flocculant for treating wastewater containing cyanuric acid comprises the following raw materials in parts by weight: the flocculant comprises the following raw materials in parts by weight: 8 parts of aluminum sulfate, 18 parts of ferric sulfate, 13 parts of ferric hydroxide, 8 parts of aluminum chloride, 23 parts of PFC (Power factor correction), 23 parts of coconut shell carbon, 14 parts of starch, 7 parts of chitosan, 6 parts of lignosulfonate, 33 parts of water, 17 parts of polyacrylamide, 45 parts of methacrylic acid, 2 parts of sodium dodecyl sulfate, 2 parts of acetone, 8 parts of ethylene glycol, 4 parts of ethylenediamine tetraacetic acid and 8 parts of azodiisobutyronitrile;
preferably, the steps are as follows: (1) putting aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon into a ball mill, and grinding until the aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon pass through a 500-mesh sieve for later use; (2) adding starch, chitosan, lignosulfonate and water into the mixed powder obtained in the step (1), and stirring for 2 hours at the water bath temperature of 50-55 ℃ to obtain a mixed solution for later use; (3) adding acetone and ethylene glycol into the mixed solution obtained in the step (2), and uniformly stirring; (4) adding polyacrylamide, methacrylic acid, sodium dodecyl sulfate, ethylene diamine tetraacetic acid and azodiisobutyronitrile into the feed liquid obtained in the step (3), and uniformly stirring to obtain a flocculant wet blank; (5) drying the wet blank of the flocculant obtained in the step (4) for 5-6 hours to obtain the flocculant;
preferably, the stirring temperature in the step (3) is 63 ℃, the stirring time is 1-2h, and the stirring speed is 200 r/min;
preferably, the stirring temperature in the step (4) is 72 ℃, the stirring time is 2-3h, and the stirring speed is 500 r/min;
preferably, the heating temperature of the step (5) is 63 ℃.
Placing the obtained flocculant in sewage with COD of 1550mg/L, BOD of 1410 mg/L, SS of 1230 mg/L at normal temperature, stirring for 1h at room temperature, and measuring various indexes of the treated sewage as follows: the COD is 17mg/L, BOD and 158 mg/L, SS and 6mg/L, wherein the input amount of the flocculating agent is 27kg, and the sewage amount is 10 t.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (6)
1. The preparation method of the flocculant for treating wastewater containing cyanuric acid is characterized in that the flocculant comprises the following raw materials in parts by weight: 5-10 parts of aluminum sulfate, 15-20 parts of ferric sulfate, 10-15 parts of ferric hydroxide, 5-10 parts of aluminum chloride, 20-25 parts of PFC, 20-25 parts of coconut shell carbon, 12-15 parts of starch, 5-8 parts of chitosan, 3-8 parts of lignosulfonate, 30-35 parts of water, 15-20 parts of polyacrylamide, 3-5 parts of methacrylic acid, 1-3 parts of sodium dodecyl sulfate, 1-3 parts of acetone, 5-10 parts of ethylene glycol, 3-5 parts of ethylene diamine tetraacetic acid and 5-10 parts of azobisisobutyronitrile.
2. The preparation method of the flocculant for treating wastewater containing cyanuric acid according to claim 1, wherein the flocculant comprises the following raw materials in parts by weight: 8 parts of aluminum sulfate, 18 parts of ferric sulfate, 13 parts of ferric hydroxide, 8 parts of aluminum chloride, 23 parts of PFC (Power factor correction), 23 parts of coconut shell carbon, 14 parts of starch, 7 parts of chitosan, 6 parts of lignosulfonate, 33 parts of water, 17 parts of polyacrylamide, 45 parts of methacrylic acid, 2 parts of sodium dodecyl sulfate, 2 parts of acetone, 8 parts of ethylene glycol, 4 parts of ethylene diamine tetraacetic acid and 8 parts of azodiisobutyronitrile.
3. The method for preparing the flocculant for treating wastewater containing cyanuric acid according to claim 1, wherein the steps are as follows: (1) putting aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon into a ball mill, and grinding until the aluminum sulfate, ferric hydroxide, aluminum chloride, PFC and coconut shell carbon pass through a 500-mesh sieve for later use; (2) adding starch, chitosan, lignosulfonate and water into the mixed powder obtained in the step (1), and stirring for 2 hours at the water bath temperature of 50-55 ℃ to obtain a mixed solution for later use; (3) adding acetone and ethylene glycol into the mixed solution obtained in the step (2), and uniformly stirring; (4) adding polyacrylamide, methacrylic acid, sodium dodecyl sulfate, ethylene diamine tetraacetic acid and azodiisobutyronitrile into the feed liquid obtained in the step (3), and uniformly stirring to obtain a flocculant wet blank; (5) and (5) drying the wet blank of the flocculant obtained in the step (4) for 5-6h, and recording to obtain the flocculant.
4. The method for preparing a flocculant for treating wastewater containing cyanuric acid according to claim 3, wherein the stirring temperature in step (3) is 60-65 ℃, the stirring time is 1-2h, and the stirring speed is 200 r/min.
5. The method for preparing a flocculant for treating wastewater containing cyanuric acid according to claim 3, wherein the stirring temperature in step (4) is 70-73 ℃, the stirring time is 2-3h, and the stirring speed is 500 r/min.
6. The method for preparing a flocculant for treating wastewater containing cyanuric acid according to claim 3, wherein the heating temperature in the step (5) is 60-65 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011245880.0A CN112374594A (en) | 2020-11-10 | 2020-11-10 | Preparation method of flocculant for treating wastewater containing cyanuric acid |
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| CN106564977A (en) * | 2016-11-11 | 2017-04-19 | 广西新六合环保有限责任公司 | Industrial waste water treatment agent and preparation method therefor |
| CN108658196A (en) * | 2018-06-28 | 2018-10-16 | 芜湖市棠华建材科技有限公司 | Industrial Wastewater Treatment composite flocculation agent |
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| JP2000334210A (en) * | 1999-05-26 | 2000-12-05 | Fuji Mix:Kk | Flocculant and method for treating suspension using the same |
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| CN105199036A (en) * | 2015-10-13 | 2015-12-30 | 扬州大学 | Ammonium acrylate/acrylamide copolymerized emulsion flocculant and preparation method thereof |
| CN105199027A (en) * | 2015-10-20 | 2015-12-30 | 扬州大学 | Ammonium polyacrylate emulsion flocculating agent and preparation method thereof |
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Application publication date: 20210219 |