CN114314782A - Preparation method of novel efficient phosphorus removal agent for sewage treatment - Google Patents
Preparation method of novel efficient phosphorus removal agent for sewage treatment Download PDFInfo
- Publication number
- CN114314782A CN114314782A CN202111568254.XA CN202111568254A CN114314782A CN 114314782 A CN114314782 A CN 114314782A CN 202111568254 A CN202111568254 A CN 202111568254A CN 114314782 A CN114314782 A CN 114314782A
- Authority
- CN
- China
- Prior art keywords
- phosphorus removal
- sewage treatment
- removal agent
- novel efficient
- efficient phosphorus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 60
- 239000011574 phosphorus Substances 0.000 title claims abstract description 60
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 46
- 239000010865 sewage Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 52
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 52
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- 229910052742 iron Inorganic materials 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 50
- 238000002156 mixing Methods 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 13
- OMOVVBIIQSXZSZ-UHFFFAOYSA-N [6-(4-acetyloxy-5,9a-dimethyl-2,7-dioxo-4,5a,6,9-tetrahydro-3h-pyrano[3,4-b]oxepin-5-yl)-5-formyloxy-3-(furan-3-yl)-3a-methyl-7-methylidene-1a,2,3,4,5,6-hexahydroindeno[1,7a-b]oxiren-4-yl] 2-hydroxy-3-methylpentanoate Chemical compound CC12C(OC(=O)C(O)C(C)CC)C(OC=O)C(C3(C)C(CC(=O)OC4(C)COC(=O)CC43)OC(C)=O)C(=C)C32OC3CC1C=1C=COC=1 OMOVVBIIQSXZSZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 12
- 230000003078 antioxidant effect Effects 0.000 claims description 12
- 235000006708 antioxidants Nutrition 0.000 claims description 12
- 239000008139 complexing agent Substances 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 12
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 8
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 claims description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- 229930003268 Vitamin C Natural products 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 235000019154 vitamin C Nutrition 0.000 claims description 4
- 239000011718 vitamin C Substances 0.000 claims description 4
- 239000004343 Calcium peroxide Substances 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- LHJQIRIGXXHNLA-UHFFFAOYSA-N calcium peroxide Chemical compound [Ca+2].[O-][O-] LHJQIRIGXXHNLA-UHFFFAOYSA-N 0.000 claims description 3
- 235000019402 calcium peroxide Nutrition 0.000 claims description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 3
- 239000011976 maleic acid Substances 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- 235000010288 sodium nitrite Nutrition 0.000 claims description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 3
- 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 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- PLKATZNSTYDYJW-UHFFFAOYSA-N azane silver Chemical compound N.[Ag] PLKATZNSTYDYJW-UHFFFAOYSA-N 0.000 claims description 2
- SJKRCWUQJZIWQB-UHFFFAOYSA-N azane;chromium Chemical compound N.[Cr] SJKRCWUQJZIWQB-UHFFFAOYSA-N 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 239000002131 composite material Substances 0.000 abstract description 4
- 239000002244 precipitate Substances 0.000 abstract description 4
- 229910019142 PO4 Inorganic materials 0.000 abstract description 2
- 238000009388 chemical precipitation Methods 0.000 abstract description 2
- 230000015271 coagulation Effects 0.000 abstract description 2
- 238000005345 coagulation Methods 0.000 abstract description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 2
- 239000010452 phosphate Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract 1
- 239000012629 purifying agent Substances 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 18
- 239000000047 product Substances 0.000 description 16
- 241000195493 Cryptophyta Species 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- QKSIFUGZHOUETI-UHFFFAOYSA-N copper;azane Chemical group N.N.N.N.[Cu+2] QKSIFUGZHOUETI-UHFFFAOYSA-N 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 241000195628 Chlorophyta Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- WRWVJVMQBNPVKV-UHFFFAOYSA-N [Mo].[Sb].[K] Chemical compound [Mo].[Sb].[K] WRWVJVMQBNPVKV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention belongs to the technical field of chemical coatings, and particularly relates to a preparation method of a novel efficient phosphorus removal agent for sewage treatment; the invention provides a novel efficient phosphorus removal agent for sewage treatment, which comprises the following substances: hydrochloric acid, sulfuric acid, iron, aluminum; the novel efficient phosphorus removal agent for sewage treatment is prepared by treating phosphorus through a chemical precipitation method, and a low-molecular flocculant with a large contact area is formed in a water body by adding the efficient phosphorus removal agent, and reacts with phosphate in the water body to form large-particle precipitates, and the precipitates can be removed in a coagulation manner, so that the phosphorus removal effect is achieved. Meanwhile, the water purifying agent has excellent water purifying effect, forms a low-molecular composite flocculant after being dissolved in water, can be rapidly precipitated, and has high activity, good filterability and strong adaptability to various kinds of sewage.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a preparation method of a novel efficient phosphorus removal agent for sewage treatment.
Background
Phosphorus is one of main elements required by biological growth and can promote the growth of plants, but when the phosphorus content in the water body exceeds a certain amount, eutrophication of the water body can be caused, so that species distribution of a water ecological system is unbalanced, a single species grows excessively, the flow of substances and energy of the system is damaged, the whole water ecological system gradually goes to death, the biological population fluctuates severely, the stability and diversity of aquatic organisms are reduced, and the ecological balance of the water body is damaged. The eutrophic water body not only affects the use function of the water body, but also harms human health. The environment is protected, the water generates musty smell and odor due to excessive propagation of algae in the water body, and a plurality of algae can secrete and release toxic and harmful substances to reduce the quality of the water. Meanwhile, a layer of green scum is formed on the surface of the water body by a large amount of blue and green algae growing and propagating in the water body, so that the water quality becomes turbid, the transparency is obviously reduced, the sunlight is difficult to transmit into the deep layer of the lake, the photosynthesis of the deep water body is weakened, and the source of dissolved oxygen is reduced. In addition, the decaying decomposition of dead algae accelerates the consumption speed of dissolved oxygen in the water body, resulting in oxygen deficiency of the water body. Meanwhile, the metabolism of algae and the toxic and harmful substances generated by algae increase the technical difficulty of water treatment and increase the water control cost.
The prevention and control of water eutrophication is still an important classroom before and even at present. The method has the advantages that the exogenous pollution is effectively controlled, simultaneously, the natural, healthy and stable functions of the aquatic ecosystem are recovered by regulating and controlling the structure of the aquatic ecosystem, the buffering capacity for external interference is enhanced, and the aquatic ecosystem is in a benign and sustainable cycle. Meanwhile, the adoption of external interference on the phosphorus content in the water body is also an important method, and the problem of controlling the emission of the phosphorus content from the source is very important. Therefore, domestic sewage needs to be treated before being discharged to reduce the phosphorus content in the wastewater.
Therefore, the invention provides a chemical precipitation method for treating phosphorus, a high-efficiency phosphorus removing agent is added to form a low-molecular flocculant with a larger contact area in a water body, the low-molecular flocculant reacts with phosphate in the water body to form large-particle precipitates, and the precipitates can be removed in a coagulation mode, so that the phosphorus removing effect is achieved.
Disclosure of Invention
In order to achieve the aim in the background technology, the invention provides a preparation method of a novel efficient phosphorus removal agent for sewage treatment;
the invention is realized by the following technical scheme:
a preparation method of a novel efficient phosphorus removal agent for sewage treatment is characterized by comprising the following steps: the novel efficient phosphorus removal agent for sewage treatment comprises the following components: hydrochloric acid, sulfuric acid, iron and aluminum.
The preparation method of the novel efficient phosphorus removal agent for sewage treatment comprises the following steps:
(1) adding hydrochloric acid and iron into a reaction kettle according to the mass ratio of 1-1.2: 2.4-3 for reaction, controlling the pH of the solution to be less than 3, and recrystallizing after the reaction is completed to obtain a substance A, wherein the operation is performed in an oxygen-free environment;
(2) adding sulfuric acid and aluminum into a reaction kettle according to the mass ratio of 2-3: 3-6 for reaction, recrystallizing after the reaction is completed, then carrying out scorching, controlling the temperature at 200-300 ℃ for 3-4 hours, and cooling to room temperature to obtain a substance B;
(3) adding the substance A and the substance B into a mixer according to the mass part ratio of 10-15: 30-40, uniformly mixing, adding 0.2-0.5% of antioxidant, 0.1-0.3% of auxiliary complexing agent and 3-5% of polyhydroxy polymer in the mixer, uniformly mixing for 1-2 minutes to obtain a product, adding the product and water into a reaction kettle according to the mass part ratio of 1-2: 5-6 for reaction, controlling the reaction time to be 10-20 minutes, controlling the stirring speed to be 200-300rpm/min, drying the obtained product after the reaction is completed, and drying to obtain the novel efficient phosphorus removal agent.
Wherein the hydrochloric acid is a hydrochloric acid solution with the concentration of 4-6 mol/L.
Wherein the iron is powder with the particle size of 200-300 meshes.
Wherein the sulfuric acid is a sulfuric acid solution with the concentration of 6-10 mol/L.
Wherein the aluminum is particles with the particle size of 5-25 meshes.
Wherein the antioxidant is one or more of vitamin C, hydrogen peroxide, sodium nitrite and calcium peroxide.
Wherein, the auxiliary complexing agent is one or more of cuprammonium solution, silver ammonia solution, chromium ammonia solution, EDTA, polyacrylic acid and maleic acid.
Wherein the polyhydroxy polymer is one or more of polyvinyl alcohol, polypropylene alcohol and polyether polyol.
Beneficial effects
1. The novel efficient phosphorus removal agent for sewage treatment is a composite polymer prepared by a composite mode, has a huge molecular structure, a large specific surface area and strong adsorption capacity, and can effectively adsorb phosphorus-containing substances in sewage;
2. according to the invention, the product prepared by using iron, aluminum, hydrochloric acid and sulfuric acid has small influence on the pH value, small corrosivity on equipment and pipelines, convenient operation and small usage amount, so that the purification cost is effectively reduced, and meanwhile, secondary pollution is avoided;
3. the novel efficient phosphorus removal agent prepared by the invention has excellent water purification effect, can form a low-molecular composite flocculant after being dissolved in water, can be rapidly precipitated, has high activity and good filterability, and has strong adaptability to various kinds of sewage.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to experimental data to facilitate understanding of the skilled person.
Example 1
A preparation method of a novel efficient phosphorus removal agent for sewage treatment is characterized by comprising the following steps: the novel efficient phosphorus removal agent for sewage treatment comprises the following components: hydrochloric acid, sulfuric acid, iron and aluminum.
The preparation method of the novel efficient phosphorus removal agent for sewage treatment comprises the following steps:
(1) adding hydrochloric acid and iron into a reaction kettle according to the mass ratio of 1.1: 2.6 for reaction, controlling the pH of the solution to be less than 3, and recrystallizing after the reaction is completed to obtain a substance A, wherein the operation is performed in an oxygen-free environment;
(2) adding sulfuric acid and aluminum into a reaction kettle according to the mass ratio of 3: 5 for reaction, recrystallizing after the reaction is completed, then carrying out scorching, controlling the temperature at 200 ℃ and 300 ℃ for 3-4 hours, and cooling to room temperature to obtain a substance B;
(3) adding the substance A and the substance B into a mixer according to the mass part ratio of 15: 30, uniformly mixing, adding 0.2% of antioxidant, 0.3% of auxiliary complexing agent and 5% of polyhydroxy polymer in the mixer, mixing for 1-2 minutes, uniformly mixing to obtain a product, adding the product and water into a reaction kettle according to the ratio of 1: 5, reacting for 10-20 minutes, controlling the stirring speed at 200-300rpm/min, drying the obtained product after complete reaction, and drying to obtain the novel efficient phosphorus removal agent.
Wherein the hydrochloric acid is a hydrochloric acid solution with the concentration of 5 mol/L.
Wherein the iron is powder with the particle size of 200-300 meshes.
Wherein the sulfuric acid is a sulfuric acid solution with the concentration of 8 mol/L.
Wherein the aluminum is particles with the particle size of 5-25 meshes.
Wherein the antioxidant is sodium nitrite.
Wherein the auxiliary complexing agent is maleic acid.
Wherein the polyhydroxy polymer is polyether polyol.
Example 2
A preparation method of a novel efficient phosphorus removal agent for sewage treatment is characterized by comprising the following steps: the novel efficient phosphorus removal agent for sewage treatment comprises the following components: hydrochloric acid, sulfuric acid, iron and aluminum.
The preparation method of the novel efficient phosphorus removal agent for sewage treatment comprises the following steps:
(1) adding hydrochloric acid and iron into a reaction kettle according to the mass ratio of 1: 3 for reaction, controlling the pH of the solution to be less than 3, and recrystallizing after the reaction is completed to obtain a substance A, wherein the operation is performed in an oxygen-free environment;
(2) adding sulfuric acid and aluminum into a reaction kettle according to the mass ratio of 1.5: 4 for reaction, recrystallizing after the reaction is completed, then carrying out scorching, controlling the temperature at 200 ℃ and 300 ℃ for 3-4 hours, and cooling to room temperature to obtain a substance B;
(3) adding the substance A and the substance B into a mixer according to the mass part ratio of 12: 30, uniformly mixing, adding 0.2% of antioxidant, 0.2% of auxiliary complexing agent and 3-5% of polyhydroxy polymer in the mixer, mixing for 1-2 minutes, uniformly mixing to obtain a product, adding the product and water into a reaction kettle according to the ratio of 1.5: 5, reacting for 10-20 minutes, controlling the stirring speed at 200-300rpm/min, drying the obtained product after the reaction is completed, and drying the obtained material to obtain the novel efficient phosphorus removal agent.
Wherein the hydrochloric acid is a hydrochloric acid solution with the concentration of 4 mol/L.
Wherein the iron is powder with the particle size of 200-300 meshes.
Wherein the sulfuric acid is a sulfuric acid solution with the concentration of 6 mol/L.
Wherein the aluminum is particles with the particle size of 5-25 meshes.
Wherein the antioxidant is vitamin C.
Wherein, the auxiliary complexing agent is copper ammonia solution.
Wherein the polyhydroxy polymer is polypropylene glycol.
Example 3
A preparation method of a novel efficient phosphorus removal agent for sewage treatment is characterized by comprising the following steps: the novel efficient phosphorus removal agent for sewage treatment comprises the following components: hydrochloric acid, sulfuric acid, iron and aluminum.
The preparation method of the novel efficient phosphorus removal agent for sewage treatment comprises the following steps:
(1) adding hydrochloric acid and iron into a reaction kettle according to the mass ratio of 1: 2.5 for reaction, controlling the pH of the solution to be less than 3, and recrystallizing after the reaction is completed to obtain a substance A, wherein the operation is performed in an oxygen-free environment;
(2) adding sulfuric acid and aluminum into a reaction kettle according to the mass ratio of 2: 4 for reaction, recrystallizing after the reaction is completed, then carrying out scorching, controlling the temperature at 200 ℃ and 300 ℃ for 3-4 hours, and cooling to room temperature to obtain a substance B;
(3) adding the substance A and the substance B into a mixer according to the mass part ratio of 10: 40, uniformly mixing, adding 0.2% of antioxidant, 0.1% of auxiliary complexing agent and 3-5% of polyhydroxy polymer in the mixer, mixing for 1-2 minutes, uniformly mixing to obtain a product, adding the product and water into a reaction kettle according to the ratio of 1: 6, reacting for 10-20 minutes, controlling the stirring speed at 200-300rpm/min, drying the obtained product after complete reaction, and drying to obtain the novel efficient phosphorus removal agent.
Wherein the hydrochloric acid is a hydrochloric acid solution with the concentration of 6 mol/L.
Wherein the iron is powder with the particle size of 200-300 meshes.
Wherein the sulfuric acid is a sulfuric acid solution with the concentration of 8 mol/L.
Wherein the aluminum is particles with the particle size of 5-25 meshes.
Wherein the antioxidant is calcium peroxide.
Wherein, the auxiliary complexing agent is polyacrylic acid.
Wherein the polyhydroxy polymer is polyvinyl alcohol.
Example 4
A preparation method of a novel efficient phosphorus removal agent for sewage treatment is characterized by comprising the following steps: the novel efficient phosphorus removal agent for sewage treatment comprises the following components: hydrochloric acid, sulfuric acid, iron and aluminum.
The preparation method of the novel efficient phosphorus removal agent for sewage treatment comprises the following steps:
(1) adding hydrochloric acid and iron into a reaction kettle according to the mass ratio of 1.2: 3 for reaction, controlling the pH of the solution to be less than 3, and recrystallizing after the reaction is completed to obtain a substance A, wherein the operation is performed in an oxygen-free environment;
(2) adding sulfuric acid and aluminum into a reaction kettle according to the mass ratio of 3: 6 for reaction, recrystallizing after the reaction is completed, then carrying out scorching, controlling the temperature at 200 ℃ and 300 ℃ for 3-4 hours, and cooling to room temperature to obtain a substance B;
(3) adding the substance A and the substance B into a mixer according to the mass part ratio of 15: 40, uniformly mixing, adding 0.5% of antioxidant, 0.3% of auxiliary complexing agent and 3-5% of polyhydroxy polymer in the mixer, mixing for 1-2 minutes, uniformly mixing to obtain a product, adding the product and water into a reaction kettle according to the ratio of 2: 6, reacting for 10-20 minutes, controlling the stirring speed at 200-300rpm/min, drying the obtained product after complete reaction, and drying to obtain the novel efficient phosphorus removal agent.
Wherein the hydrochloric acid is a hydrochloric acid solution with the concentration of 5 mol/L.
Wherein the iron is powder with the particle size of 200-300 meshes.
Wherein the sulfuric acid is a sulfuric acid solution with the concentration of 10 mol/L.
Wherein the aluminum is particles with the particle size of 5-25 meshes.
Wherein the antioxidant is vitamin C.
Wherein, the auxiliary complexing agent is copper ammonia solution.
Wherein the polyhydroxy polymer is polyvinyl alcohol.
Experimental analysis:
water test: the phosphorus concentration was measured by potassium molybdenum antimony persulfate anti-spectrophotometric method, and the samples of examples and comparative examples were measured by TU-1810 UV-visible spectrophotometer, respectively.
The results of the total phosphorus concentration (mg/L) tests of examples 1-4 and commercially available phosphorus removal agents after being dosed into samples 1-3, respectively, in a water sample test are shown in the following table:
as can be seen from the table above, the high-efficiency phosphorus removal agent prepared by the invention has a very good phosphorus removal effect which can reach more than 98%, and compared with a comparative example, the effect is far better than that of the high-efficiency phosphorus removal agent, so that the phosphorus removal effect is really achieved.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (9)
1. A preparation method of a novel efficient phosphorus removal agent for sewage treatment is characterized by comprising the following steps: the novel efficient phosphorus removal agent for sewage treatment comprises the following components: hydrochloric acid, sulfuric acid, iron and aluminum.
2. The preparation method of the novel efficient phosphorus removal agent for sewage treatment as claimed in claim 1, wherein: the preparation method of the novel efficient phosphorus removal agent for sewage treatment comprises the following steps:
(1) adding hydrochloric acid and iron into a reaction kettle according to the mass ratio of 1-1.2: 2.4-3 for reaction, controlling the pH of the solution to be less than 3, and recrystallizing after the reaction is completed to obtain a substance A, wherein the operation is performed in an oxygen-free environment;
(2) adding sulfuric acid and aluminum into a reaction kettle according to the mass ratio of 2-3: 3-6 for reaction, recrystallizing after the reaction is completed, then carrying out scorching, controlling the temperature at 200-300 ℃ for 3-4 hours, and cooling to room temperature to obtain a substance B;
(3) adding the substance A and the substance B into a mixer according to the mass part ratio of 10-15: 30-40, uniformly mixing, adding 0.2-0.5% of antioxidant, 0.1-0.3% of auxiliary complexing agent and 3-5% of polyhydroxy polymer in the mixer, uniformly mixing for 1-2 minutes to obtain a product, adding the product and water into a reaction kettle according to the mass part ratio of 1-2: 5-6 for reaction, controlling the reaction time to be 10-20 minutes, controlling the stirring speed to be 200-300rpm/min, drying the obtained product after the reaction is completed, and drying to obtain the novel efficient phosphorus removal agent.
3. The method for preparing the novel efficient phosphorus removal agent for sewage treatment as claimed in claim 1, wherein the hydrochloric acid is a hydrochloric acid solution with a concentration of 4-6 mol/L.
4. The method for preparing a novel efficient phosphorus removal agent for sewage treatment as claimed in claim 1, wherein said iron is powder with a particle size of 200-300 mesh.
5. The method for preparing the novel efficient phosphorus removal agent for sewage treatment as claimed in claim 1, wherein the sulfuric acid is a sulfuric acid solution with a concentration of 6-10 mol/L.
6. The method for preparing the novel efficient phosphorus removal agent for sewage treatment as claimed in claim 1, wherein the aluminum is particles with a particle size of 5-25 meshes.
7. The preparation method of the novel efficient phosphorus removal agent for sewage treatment as claimed in claim 1, wherein the antioxidant is one or more of vitamin C, hydrogen peroxide, sodium nitrite and calcium peroxide.
8. The method for preparing the novel efficient phosphorus removal agent for sewage treatment according to claim 1, wherein the auxiliary complexing agent is one or more of cuprammonium solution, silver ammonia solution, chromium ammonia solution, EDTA, polyacrylic acid and maleic acid.
9. The preparation method of the novel efficient phosphorus removal agent for sewage treatment as claimed in claim 1, wherein the polyhydroxy polymer is one or more of polyvinyl alcohol, polypropylene alcohol and polyether polyol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111568254.XA CN114314782A (en) | 2021-12-21 | 2021-12-21 | Preparation method of novel efficient phosphorus removal agent for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111568254.XA CN114314782A (en) | 2021-12-21 | 2021-12-21 | Preparation method of novel efficient phosphorus removal agent for sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114314782A true CN114314782A (en) | 2022-04-12 |
Family
ID=81053994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111568254.XA Pending CN114314782A (en) | 2021-12-21 | 2021-12-21 | Preparation method of novel efficient phosphorus removal agent for sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114314782A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486783A (en) * | 2003-08-22 | 2004-04-07 | 清华大学 | High-activity ferric oxide adsorbant and its prepn |
| CN102674510A (en) * | 2012-01-15 | 2012-09-19 | 河南科技大学 | Domestic wastewater treating agent |
| CN104098166A (en) * | 2014-06-19 | 2014-10-15 | 杭州电子科技大学 | Pesticide wastewater dephosphorizing agent |
| CN105936581A (en) * | 2016-06-12 | 2016-09-14 | 山东源根化学技术研发有限公司 | Inorganic flocculant, preparation method thereof and inorganic flocculant and papermaking sludge dehydration process using the same |
| KR101694357B1 (en) * | 2016-05-09 | 2017-01-09 | 주식회사 후소엔지니어링 | Method of Manufacturing Coating Carrier for Phosphorus Removal |
| CN107935068A (en) * | 2017-11-22 | 2018-04-20 | 广东桑海环保有限公司 | A kind of high efficiency composition dephosphorization agent and preparation method thereof |
| CN108250356A (en) * | 2018-01-23 | 2018-07-06 | 云南森博混凝土外加剂有限公司 | A kind of auxiliary agent of concrete flocculation agent |
| CN109678233A (en) * | 2018-12-28 | 2019-04-26 | 新疆水处理工程技术研究中心有限公司 | A kind of sewage dephosphorization efficient flocculant and preparation method thereof |
-
2021
- 2021-12-21 CN CN202111568254.XA patent/CN114314782A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486783A (en) * | 2003-08-22 | 2004-04-07 | 清华大学 | High-activity ferric oxide adsorbant and its prepn |
| CN102674510A (en) * | 2012-01-15 | 2012-09-19 | 河南科技大学 | Domestic wastewater treating agent |
| CN104098166A (en) * | 2014-06-19 | 2014-10-15 | 杭州电子科技大学 | Pesticide wastewater dephosphorizing agent |
| KR101694357B1 (en) * | 2016-05-09 | 2017-01-09 | 주식회사 후소엔지니어링 | Method of Manufacturing Coating Carrier for Phosphorus Removal |
| CN105936581A (en) * | 2016-06-12 | 2016-09-14 | 山东源根化学技术研发有限公司 | Inorganic flocculant, preparation method thereof and inorganic flocculant and papermaking sludge dehydration process using the same |
| CN107935068A (en) * | 2017-11-22 | 2018-04-20 | 广东桑海环保有限公司 | A kind of high efficiency composition dephosphorization agent and preparation method thereof |
| CN108250356A (en) * | 2018-01-23 | 2018-07-06 | 云南森博混凝土外加剂有限公司 | A kind of auxiliary agent of concrete flocculation agent |
| CN109678233A (en) * | 2018-12-28 | 2019-04-26 | 新疆水处理工程技术研究中心有限公司 | A kind of sewage dephosphorization efficient flocculant and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 郁振华: "电解加工应用实例", 国防工业出版社, pages: 17 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101402485B (en) | Cohesive action nutrient source SRB sewage sludge immobilization particle, production and uses in treating heavy metal wastewater thereof | |
| CN107935068B (en) | Efficient composite phosphorus removal agent and preparation method thereof | |
| CN107459150A (en) | A kind of compound bacteria particle and its sewage treatment process | |
| CN111874967A (en) | Efficient phosphorus removal agent for removing phosphorus from sewage | |
| CN107814466B (en) | DPT production wastewater treatment process | |
| CN114105290A (en) | Preparation method and application of modified blue algae biochar loaded nano zero-valent iron material | |
| CN109354314A (en) | A kind of low-carbon-source high ammonia nitrogen and high organism P wastewater combined bio bed treatment process | |
| WO2018160567A1 (en) | Systems, methods, and apparatus for increased wastewater effluent and biosolids quality | |
| CN114314782A (en) | Preparation method of novel efficient phosphorus removal agent for sewage treatment | |
| CN103947691A (en) | Hydrogen peroxide/polysilicate aluminum sulfate compounded blue algae treating agent and preparation method thereof | |
| CN111349626A (en) | Immobilized microorganism for sewage treatment and preparation method and application thereof | |
| Wang et al. | Migration and transformation of phosphorus in waste activated sludge during ozonation | |
| CN102001721B (en) | Method for treating ammonia nitrogen wastewater | |
| Cai et al. | Effect of high ammonia on granular stability and phosphorus recovery of algal-bacterial granules in treatment of synthetic biogas slurry | |
| CN110294536B (en) | Preparation method of biomass carbon nitrifying bacteria carrier | |
| CN113845284A (en) | Stepped substrate modifier for ecological restoration of deep water rivers and lakes | |
| CN113332971A (en) | Nano ZnO/g-C3N4Application of composite catalyst as algae inhibitor and preparation method thereof | |
| CN111908619A (en) | Efficient biochemical combined composite phosphorus removal agent and preparation method thereof | |
| Zhao et al. | Preliminary research on synergetic removal of phosphorus and nitrogen by aeration and adsorption | |
| CN106315810B (en) | Multiple-load type silicon-based phosphorus removal agent, preparation method and application thereof | |
| CN104591440A (en) | Method for treating wastewater generated after preparing alcohol from cassavas as raw material | |
| CN113511711B (en) | Method for emergency treatment of cyanobacterial bloom | |
| CN213865841U (en) | Equipment is got rid of to total nitrogen high efficiency | |
| CN116514253A (en) | Neutralization tank wastewater dephosphorization process | |
| CN110980962B (en) | Phosphorus-accumulating microbial inoculum and sludge treatment technology using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |