CN111874967A - Efficient phosphorus removal agent for removing phosphorus from sewage - Google Patents
Efficient phosphorus removal agent for removing phosphorus from sewage Download PDFInfo
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- CN111874967A CN111874967A CN202010689702.0A CN202010689702A CN111874967A CN 111874967 A CN111874967 A CN 111874967A CN 202010689702 A CN202010689702 A CN 202010689702A CN 111874967 A CN111874967 A CN 111874967A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- 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
- C02F2101/105—Phosphorus compounds
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- Environmental & Geological Engineering (AREA)
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention provides a high-efficiency phosphorus removal agent for removing phosphorus from sewage, and relates to the technical field of sewage treatment. The efficient phosphorus removal agent for removing phosphorus from sewage comprises the following raw materials in parts by weight: 8-13 parts of ferric chloride, 5-9 parts of copper sulfate, 5-10 parts of poly dimethyl diallyl ammonium chloride, 5-10 parts of a coagulant aid, 30-40 parts of water, 6-12 parts of polymeric ferric sulfate, 5-10 parts of ferrous sulfate, 10-16 parts of aluminum sulfate, 8-12 parts of polymeric aluminum chloride, 7-13 parts of sodium aluminate, 5-10 parts of lime, 8-14 parts of flake caustic soda, 4-8 parts of composite alkali and 5-10 parts of a stabilizer. The efficient phosphorus removal agent for removing phosphorus from sewage is scientific and reasonable, has a simple process and is convenient to popularize, the polyaluminium chloride, the sodium aluminate, the lime, the flake caustic soda and the composite caustic soda are simultaneously added into the phosphorus removal agent, the phosphorus removal effect on sewage can be effectively improved in use, and the storage and use of the phosphorus removal agent can be better improved by adding the stabilizer into the phosphorus removal agent.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a high-efficiency phosphorus removal agent for sewage phosphorus removal.
Background
In recent years, along with the development of industrial and agricultural industries and the increase of population, the production and consumption of Chinese fertilizers, pesticides and phosphorus-containing detergents are rapidly increased, the eutrophication of water bodies caused by water pollution is increasingly serious, the eutrophication of the water bodies damages various industries such as agriculture, fishery, tourism and the like, and also poses great threat to drinking water sanitation and food safety, main nutrient components causing the eutrophication of the water bodies comprise organic carbon, nitrogen, phosphorus, potassium and the like, the organic carbon in sewage can be basically removed after general biological treatment, the content of other components except nitrogen and phosphorus is extremely low relative to the demand in the eutrophication generation process and cannot become limiting factors of the eutrophication, so that the main factors causing the mass propagation of algae are nitrogen and phosphorus, the phosphorus is an important factor causing the eutrophication of the water bodies, the water bodies polluted by the phosphorus and the mass propagation of the algae are decomposed after the death, and the water bodies generate musty taste and odor, many species also produce toxins and affect human health through the food chain, for which the national authorities have increasingly stringent controls on the phosphorus index in sewage. As the total phosphorus of effluent of a plurality of sewage treatment plants and some ecological water regulation centers exceeds the national first class A standard, the traditional medicament can not meet the requirements of the water plants in terms of long-term operation and treatment cost after the traditional medicament is added.
The existing phosphorus removal methods in sewage treatment mainly comprise three main types: chemical phosphorus removal, biological phosphorus removal and artificial wetland phosphorus removal. The chemical dephosphorization comprises methods such as chemical precipitation, ion exchange, reverse osmosis and the like, the chemical precipitation is most widely applied, the latter methods are difficult to use due to too high treatment cost, the existing chemical auxiliary dephosphorization agents for sewage mainly comprise aluminum salt, ferric salt, calcium salt, natural adsorbent, flocculating agent and the like, and in use, the existing dephosphorization agents are used independently, so that the dephosphorization effect of the existing dephosphorization agents is poor in use, and meanwhile, the existing dephosphorization agents are solid agents, the solid blocks of the solid agents are large in volume, are slowly dissolved in use and have certain precipitates, and are easy to agglomerate after being stored for a long time.
Disclosure of Invention
The invention aims to provide an efficient phosphorus removal agent for removing phosphorus from sewage, wherein the phosphorus removal agent is added with polyaluminium chloride, sodium aluminate, lime, flake caustic soda and composite alkali, so that the phosphorus removal treatment can be performed on the sewage, the phosphorus removal effect is improved, and meanwhile, the storage time of the phosphorus removal agent can be effectively prolonged through a stabilizer, so that the phosphorus removal agent is convenient to use.
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-efficiency phosphorus removal agent for removing phosphorus from sewage comprises the following raw materials in parts by weight: 8-13 parts of ferric chloride, 5-9 parts of copper sulfate, 5-10 parts of poly dimethyl diallyl ammonium chloride, 5-10 parts of a coagulant aid, 30-40 parts of water, 6-12 parts of polymeric ferric sulfate, 5-10 parts of ferrous sulfate, 10-16 parts of aluminum sulfate, 8-12 parts of polymeric aluminum chloride, 7-13 parts of sodium aluminate, 5-10 parts of lime, 8-14 parts of flake caustic soda, 4-8 parts of composite alkali and 5-10 parts of a stabilizer.
As a further scheme of the invention: the feed comprises the following raw materials in parts by weight: 8 parts of ferric chloride, 5 parts of copper sulfate, 5 parts of poly dimethyl diallyl ammonium chloride, 5 parts of a coagulant aid, 30 parts of water, 6 parts of polymeric ferric sulfate, 5 parts of ferrous sulfate, 10 parts of aluminum sulfate, 8 parts of polymeric aluminum chloride, 7 parts of sodium aluminate, 5 parts of lime, 8 parts of caustic soda flakes, 4 parts of composite alkali and 5 parts of a stabilizer.
As a further scheme of the invention: the feed comprises the following raw materials in parts by weight: 10 parts of ferric chloride, 7 parts of copper sulfate, 8 parts of poly dimethyl diallyl ammonium chloride, 8 parts of a coagulant aid, 35 parts of water, 9 parts of polymeric ferric sulfate, 8 parts of ferrous sulfate, 13 parts of aluminum sulfate, 10 parts of polymeric aluminum chloride, 10 parts of sodium aluminate, 8 parts of lime, 11 parts of caustic soda flakes, 6 parts of composite alkali and 8 parts of a stabilizer.
As a further scheme of the invention: the feed comprises the following raw materials in parts by weight: 13 parts of ferric chloride, 9 parts of copper sulfate, 10 parts of poly dimethyl diallyl ammonium chloride, 10 parts of a coagulant aid, 40 parts of water, 12 parts of polymeric ferric sulfate, 10 parts of ferrous sulfate, 16 parts of aluminum sulfate, 12 parts of polymeric aluminum chloride, 13 parts of sodium aluminate, 10 parts of lime, 14 parts of caustic soda flakes, 8 parts of composite alkali and 10 parts of a stabilizer.
As a further scheme of the invention: the coagulant aid is any one of polyacrylamide, activated silicic acid, bone glue, sodium alginate and safflower tree.
As a further scheme of the invention: the flake caustic is sodium hydroxide.
As a further scheme of the invention: the stabilizer is any one of deionized water, dicyan and ammonium chloride.
A preparation method of a high-efficiency phosphorus removal agent for removing phosphorus from sewage comprises the following steps:
s1, adding a certain amount of water into the reactor, weighing ferric chloride, copper sulfate, poly dimethyl diallyl ammonium chloride, polymeric ferric sulfate, ferrous sulfate, aluminum sulfate, polymeric aluminum chloride and sodium aluminate according to the weight ratio, then adding the weighed materials into the reactor for stirring, wherein the rotating speed of a stirring paddle is 350r/min, and the stirring time is 3-4 h.
And S2, stirring the mixture in S1, adding coagulant aid into the reactor, and stirring the mixture by a stirring paddle at the rotating speed of 400r/min for 2.5-3 h.
And S3, after stirring in S2, adding lime, flake caustic soda and composite caustic soda into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 3-5 h.
And S4, after stirring in S3, adding a stabilizer into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 5-7 h, so that the phosphorus removal agent can be prepared.
The invention provides a high-efficiency phosphorus removal agent for removing phosphorus from sewage. The method has the following beneficial effects:
(1) the efficient phosphorus removing agent for removing phosphorus from sewage is scientific and reasonable, has simple process and convenient popularization, and can effectively improve the phosphorus removing effect on sewage in use by simultaneously adding polyaluminium chloride, sodium aluminate, lime, caustic soda flakes and composite alkali into the phosphorus removing agent.
(2) The high-efficiency phosphorus removing agent for removing phosphorus from sewage is characterized in that the poly-dimethyl diallyl ammonium chloride is added into the phosphorus removing agent, the poly-dimethyl diallyl ammonium chloride is easily dissolved in water, the phosphorus removing agent is in a liquid state after being prepared, the phosphorus removing agent is not agglomerated in the storage process, the contact speed between the phosphorus removing agent and the sewage can be increased in use, and the phosphorus removing efficiency is improved.
(3) The efficient phosphorus removal agent for removing phosphorus from sewage can better improve the storage and use of the phosphorus removal agent by adding the stabilizer into the phosphorus removal agent.
Detailed Description
The invention is illustrated below with reference to specific examples. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention in any way.
Embodiment 1, a high-efficiency phosphorus removal agent for sewage phosphorus removal, comprising the following raw materials in parts by weight: 8 parts of ferric chloride, 5 parts of copper sulfate, 5 parts of poly-dimethyl diallyl ammonium chloride, 5 parts of a coagulant aid, 30 parts of water, 6 parts of polyferric sulfate, 5 parts of ferrous sulfate, 10 parts of aluminum sulfate, 8 parts of polyaluminum chloride, 7 parts of sodium aluminate, 5 parts of lime, 8 parts of caustic soda flakes, 4 parts of composite alkali and 5 parts of a stabilizer, the phosphorus removing agent prepared by the formula and the method is scientific, reasonable, simple in process and convenient to popularize, the poly-aluminum chloride, the sodium aluminate, the lime, the caustic soda flakes and the composite alkali are simultaneously added into the phosphorus removing agent, the phosphorus removing effect on sewage can be effectively improved in use, the poly-dimethyl diallyl ammonium chloride is added into the phosphorus removing agent, the poly-dimethyl diallyl ammonium chloride is easy to dissolve in water, the phosphorus removing agent is in a liquid state after being prepared, the phosphorus removing agent is not agglomerated in the storage process, the contact speed between the phosphorus removing agent and the sewage can be accelerated in use, the dephosphorization efficiency is improved, and the storage and use of the dephosphorization agent can be better improved by adding the stabilizer into the dephosphorization agent.
Specifically, the coagulant aid is any one of polyacrylamide, activated silicic acid, bone glue, sodium alginate and safflower tree.
Specifically, the flake caustic is sodium hydroxide.
Specifically, the stabilizer is any one of deionized water, dicyan and ammonium chloride.
A preparation method of a high-efficiency phosphorus removal agent for removing phosphorus from sewage comprises the following steps:
step one, adding a certain amount of water into a reactor, weighing ferric chloride, copper sulfate, poly dimethyl diallyl ammonium chloride, polymeric ferric sulfate, ferrous sulfate, aluminum sulfate, polymeric aluminum chloride and sodium aluminate according to the weight parts, then adding the weighed materials into the reactor for stirring, wherein the rotating speed of a stirring paddle is 350r/min, and the stirring time is 3-4 h.
And step two, after the stirring in the step one, adding a coagulant aid into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 2.5-3 h.
And step three, after the stirring in the step two, adding lime, flake caustic soda and composite caustic soda into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 3-5 h.
And step four, after the stirring in the step three, adding a stabilizer into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 5-7 h, so that the phosphorus removal agent can be prepared.
Embodiment 2, a high-efficiency phosphorus removal agent for sewage phosphorus removal, comprising the following raw materials in parts by weight: 10 parts of ferric chloride, 7 parts of copper sulfate, 8 parts of poly-dimethyl diallyl ammonium chloride, 8 parts of a coagulant aid, 35 parts of water, 9 parts of polyferric sulfate, 8 parts of ferrous sulfate, 13 parts of aluminum sulfate, 10 parts of polyaluminum chloride, 10 parts of sodium aluminate, 8 parts of lime, 11 parts of caustic soda flakes, 6 parts of composite alkali and 8 parts of a stabilizer, the phosphorus removing agent prepared by the formula and the method is scientific, reasonable, simple in process and convenient to popularize, the poly-aluminum chloride, the sodium aluminate, the lime, the caustic soda flakes and the composite alkali are simultaneously added into the phosphorus removing agent, the phosphorus removing effect on sewage can be effectively improved in use, the poly-dimethyl diallyl ammonium chloride is added into the phosphorus removing agent, the poly-dimethyl diallyl ammonium chloride is easy to dissolve in water, the phosphorus removing agent is in a liquid state after being prepared, the phosphorus removing agent is not agglomerated in the storage process, the contact speed between the phosphorus removing agent and the sewage can be accelerated in use, the dephosphorization efficiency is improved, and the storage and use of the dephosphorization agent can be better improved by adding the stabilizer into the dephosphorization agent.
Specifically, the coagulant aid is any one of polyacrylamide, activated silicic acid, bone glue, sodium alginate and safflower tree.
Specifically, the flake caustic is sodium hydroxide.
Specifically, the stabilizer is any one of deionized water, dicyan and ammonium chloride.
A preparation method of a high-efficiency phosphorus removal agent for removing phosphorus from sewage comprises the following steps:
step one, adding a certain amount of water into a reactor, weighing ferric chloride, copper sulfate, poly dimethyl diallyl ammonium chloride, polymeric ferric sulfate, ferrous sulfate, aluminum sulfate, polymeric aluminum chloride and sodium aluminate according to the weight parts, then adding the weighed materials into the reactor for stirring, wherein the rotating speed of a stirring paddle is 350r/min, and the stirring time is 3-4 h.
And step two, after the stirring in the step one, adding a coagulant aid into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 2.5-3 h.
And step three, after the stirring in the step two, adding lime, flake caustic soda and composite caustic soda into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 3-5 h.
And step four, after the stirring in the step three, adding a stabilizer into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 5-7 h, so that the phosphorus removal agent can be prepared.
Embodiment 3, a high-efficiency phosphorus removal agent for sewage phosphorus removal, comprising the following raw materials in parts by weight: 13 parts of ferric chloride, 9 parts of copper sulfate, 10 parts of poly-dimethyl diallyl ammonium chloride, 10 parts of coagulant aid, 40 parts of water, 12 parts of polyferric sulfate, 10 parts of ferrous sulfate, 16 parts of aluminum sulfate, 12 parts of polyaluminum chloride, 13 parts of sodium aluminate, 10 parts of lime, 14 parts of caustic soda flakes, 8 parts of composite alkali and 10 parts of stabilizer, the phosphorus removing agent prepared by the formula and the method has the advantages of scientific and reasonable structure, simple process and convenient popularization, the poly-aluminum chloride, the sodium aluminate, the lime, the caustic soda flakes and the composite alkali are simultaneously added into the phosphorus removing agent, the phosphorus removing effect on sewage can be effectively improved in use, the poly-dimethyl diallyl ammonium chloride is added into the phosphorus removing agent, the poly-dimethyl diallyl ammonium chloride is easy to dissolve in water, the phosphorus removing agent is in a liquid state after being prepared, the phosphorus removing agent is not agglomerated in the storage process, the contact speed between the phosphorus removing agent and the sewage can be accelerated in use, the dephosphorization efficiency is improved, and the storage and use of the dephosphorization agent can be better improved by adding the stabilizer into the dephosphorization agent.
Specifically, the coagulant aid is any one of polyacrylamide, activated silicic acid, bone glue, sodium alginate and safflower tree.
Specifically, the flake caustic is sodium hydroxide.
Specifically, the stabilizer is any one of deionized water, dicyan and ammonium chloride.
A preparation method of a high-efficiency phosphorus removal agent for removing phosphorus from sewage comprises the following steps:
step one, adding a certain amount of water into a reactor, weighing ferric chloride, copper sulfate, poly dimethyl diallyl ammonium chloride, polymeric ferric sulfate, ferrous sulfate, aluminum sulfate, polymeric aluminum chloride and sodium aluminate according to the weight parts, then adding the weighed materials into the reactor for stirring, wherein the rotating speed of a stirring paddle is 350r/min, and the stirring time is 3-4 h.
And step two, after the stirring in the step one, adding a coagulant aid into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 2.5-3 h.
And step three, after the stirring in the step two, adding lime, flake caustic soda and composite caustic soda into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 3-5 h.
And step four, after the stirring in the step three, adding a stabilizer into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 5-7 h, so that the phosphorus removal agent can be prepared.
Examples 1, 2 and 3 differ in the content of the components of the internal composition, and the preparation methods thereof are the same.
In order to further illustrate the beneficial effects of the present invention, the present inventors selected the existing phosphorous removal agent, and also selected the phosphorous removal agent prepared by the present invention, and compared the phosphorous content in the wastewater, the usage time, and the dissolution rate of the phosphorous removal agent, the following data were obtained, as detailed in table 1:
TABLE 1 Experimental data sheet
| Phosphorus content of sewage | Dissolution rate | Time of use | |
| Existing phosphorus removing agent | 4.5％ | Is quicker | 1d |
| Example 1 | 2.83％ | Very fast | 1d |
| Example 2 | 2.81％ | Very fast | 1d |
| Example 3 | 2.82％ | Very fast | 1d |
The experimental data in table 1 show that the phosphorus content in the sewage in examples 1 to 3 is reduced, so that the phosphorus removal effect on the sewage can be effectively improved in use by the polyaluminum chloride, the sodium aluminate, the lime, the flake caustic soda and the composite caustic soda in the phosphorus removal agent, and the dissolution speed in examples 1 to 3 is extremely high, so that the poly-dimethyldiallylammonium chloride is added into the phosphorus removal agent, and the poly-dimethyldiallylammonium chloride is easily dissolved in water, so that the contact speed between the phosphorus removal agent and the sewage can be increased in use, and the phosphorus removal efficiency can be improved.
To further illustrate the beneficial effects of the present invention, the present inventors selected the existing phosphorous removal agent, and also selected the phosphorous removal agent prepared by the present invention, and compared the state, stability and storage time of the phosphorous removal agent after preparation, the following data were obtained, as detailed in table 2:
TABLE 2 Experimental data sheet
| State after preparation | Stability of | Storage time | |
| Existing phosphorus removing agent | Solid state | The components have volatilization | 1 month |
| Example 1 | Liquid, method for producing the same and use thereof | No volatilization of components | 1 month |
| Example 2 | Liquid, method for producing the same and use thereof | No volatilization of components | 1 month |
| Example 3 | Liquid, method for producing the same and use thereof | No volatilization of components | 1 month |
As shown in the experimental data in table 2, the prepared status of examples 1 to 3 is liquid, which indicates that the phosphorus removal agent is not agglomerated during the storage process due to the addition of the polydimethyldiallyl ammonium chloride to the inside of the phosphorus removal agent, the polydimethyldiallyl ammonium chloride is easily soluble in water, and the phosphorus removal agent is liquid after preparation, which can accelerate the contact speed between the phosphorus removal agent and the sewage and improve the phosphorus removal efficiency in use, and the components of the phosphorus removal agent are not volatilized during the stability of examples 1 to 3, which indicates that the storage and use of the phosphorus removal agent can be better improved due to the addition of the stabilizer to the inside of the phosphorus removal agent.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (8)
1. The efficient phosphorus removal agent for removing phosphorus from sewage is characterized by comprising the following raw materials in parts by weight: 8-13 parts of ferric chloride, 5-9 parts of copper sulfate, 5-10 parts of poly dimethyl diallyl ammonium chloride, 5-10 parts of a coagulant aid, 30-40 parts of water, 6-12 parts of polymeric ferric sulfate, 5-10 parts of ferrous sulfate, 10-16 parts of aluminum sulfate, 8-12 parts of polymeric aluminum chloride, 7-13 parts of sodium aluminate, 5-10 parts of lime, 8-14 parts of flake caustic soda, 4-8 parts of composite alkali and 5-10 parts of a stabilizer.
2. The efficient phosphorus removal agent for sewage phosphorus removal according to claim 1, comprising the following raw materials in parts by weight: 8 parts of ferric chloride, 5 parts of copper sulfate, 5 parts of poly dimethyl diallyl ammonium chloride, 5 parts of a coagulant aid, 30 parts of water, 6 parts of polymeric ferric sulfate, 5 parts of ferrous sulfate, 10 parts of aluminum sulfate, 8 parts of polymeric aluminum chloride, 7 parts of sodium aluminate, 5 parts of lime, 8 parts of caustic soda flakes, 4 parts of composite alkali and 5 parts of a stabilizer.
3. The efficient phosphorus removal agent for sewage phosphorus removal according to claim 1, comprising the following raw materials in parts by weight: 10 parts of ferric chloride, 7 parts of copper sulfate, 8 parts of poly dimethyl diallyl ammonium chloride, 8 parts of a coagulant aid, 35 parts of water, 9 parts of polymeric ferric sulfate, 8 parts of ferrous sulfate, 13 parts of aluminum sulfate, 10 parts of polymeric aluminum chloride, 10 parts of sodium aluminate, 8 parts of lime, 11 parts of caustic soda flakes, 6 parts of composite alkali and 8 parts of a stabilizer.
4. The efficient phosphorus removal agent for sewage phosphorus removal according to claim 1, comprising the following raw materials in parts by weight: 13 parts of ferric chloride, 9 parts of copper sulfate, 10 parts of poly dimethyl diallyl ammonium chloride, 10 parts of a coagulant aid, 40 parts of water, 12 parts of polymeric ferric sulfate, 10 parts of ferrous sulfate, 16 parts of aluminum sulfate, 12 parts of polymeric aluminum chloride, 13 parts of sodium aluminate, 10 parts of lime, 14 parts of caustic soda flakes, 8 parts of composite alkali and 10 parts of a stabilizer.
5. The efficient phosphorus removal agent for sewage phosphorus removal as claimed in any one of claims 1 to 4, wherein the coagulant aid is any one of polyacrylamide, activated silicic acid, bone glue, sodium alginate and safflower tree.
6. The efficient phosphorus removal agent for phosphorus removal from wastewater as claimed in any one of claims 1 to 4, wherein the caustic soda flakes are sodium hydroxide.
7. The efficient phosphorus removal agent for phosphorus removal from wastewater as claimed in any one of claims 1 to 4, wherein the stabilizer is any one of deionized water, dicyandiamide and ammonium chloride.
8. The preparation method of the efficient phosphorus removal agent for removing phosphorus from wastewater as claimed in any one of claims 1 to 4, comprising the following steps:
s1, adding a certain amount of water into the reactor, weighing ferric chloride, copper sulfate, poly dimethyl diallyl ammonium chloride, polymeric ferric sulfate, ferrous sulfate, aluminum sulfate, polymeric aluminum chloride and sodium aluminate according to the weight parts, then adding the weighed materials into the reactor for stirring, wherein the rotating speed of a stirring paddle is 350r/min, and the stirring time is 3-4 h;
s2, stirring the mixture in S1, adding coagulant aid into the reactor, and stirring the mixture by a stirring paddle at the rotating speed of 400r/min for 2.5-3 h;
s3, after stirring in S2, adding lime, flake caustic soda and composite caustic soda into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 3-5 h;
and S4, after stirring in S3, adding a stabilizer into the reactor, and stirring by a stirring paddle, wherein the rotating speed of the stirring paddle is 400r/min, and the stirring time is 5-7 h, so that the phosphorus removal agent can be prepared.
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| CN112939167A (en) * | 2021-01-29 | 2021-06-11 | 安道麦安邦(江苏)有限公司 | Composite coagulant for treating organic phosphorus in pesticide wastewater, preparation method and application |
| CN113896307A (en) * | 2021-11-04 | 2022-01-07 | 安徽绿洁环境科技有限公司 | Composite phosphorus removal agent for sewage treatment and preparation method thereof |
| CN114538555A (en) * | 2021-12-16 | 2022-05-27 | 神美科技有限公司 | Efficient phosphorus removal agent for removing phosphorus from sewage and preparation method thereof |
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| CN112939167A (en) * | 2021-01-29 | 2021-06-11 | 安道麦安邦(江苏)有限公司 | Composite coagulant for treating organic phosphorus in pesticide wastewater, preparation method and application |
| CN113896307A (en) * | 2021-11-04 | 2022-01-07 | 安徽绿洁环境科技有限公司 | Composite phosphorus removal agent for sewage treatment and preparation method thereof |
| CN114538555A (en) * | 2021-12-16 | 2022-05-27 | 神美科技有限公司 | Efficient phosphorus removal agent for removing phosphorus from sewage and preparation method thereof |
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