CN113072215B - Energy-saving emission-reducing town sewage treatment system - Google Patents
Energy-saving emission-reducing town sewage treatment system Download PDFInfo
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- CN113072215B CN113072215B CN202110406127.3A CN202110406127A CN113072215B CN 113072215 B CN113072215 B CN 113072215B CN 202110406127 A CN202110406127 A CN 202110406127A CN 113072215 B CN113072215 B CN 113072215B
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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Abstract
The application relates to the field of sewage treatment, and discloses an energy-saving emission-reducing town sewage treatment system which comprises a sedimentation filter tank and a sewage treatment tank, wherein a sewage treatment agent is added into the sewage treatment tank; in each liter of sewage, the sewage treatment agent comprises the following raw materials in parts by weight: 40-50 parts of aminophosphonic acid resin; 10-15 parts of tetramethyl dipropylene triamine; 8-10 parts of an amide polymer; 3-5 parts of carboxymethyl starch; the application has the following advantages and effects: taking aminophosphonic acid resin capable of effectively removing divalent metal ions as a matrix, firstly, mixing tetramethyl dipropylene triamine and an amide polymer for reaction to obtain a multi-branched mixed product, so that the multi-branched mixed product can be more stably combined with carboxymethyl starch to obtain a product with stronger flocculation capacity; finally, the obtained product is mixed with aminophosphonic acid resin, so that a sewage treatment agent with better sewage treatment capacity can be obtained, and the water quality clarification is promoted.
Description
Technical Field
The application relates to the field of sewage treatment, in particular to an energy-saving and emission-reducing town sewage treatment system.
Background
Sewage treatment refers to a process of purifying sewage to meet the requirement of reusing the sewage, and is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and the sewage treatment also increasingly enters the daily life of common people.
At present, the patent with publication number CN106946416A discloses a sewage treatment system, including filtering the sedimentation tank, filtering the inner chamber of sedimentation tank from left to right fixedly connected with fender, active carbon filter layer and KDF filter layer in proper order, filtering the right side of sedimentation tank and having first water pump through pipeline swing joint, and the delivery port of first water pump has the temperature regulation jar through pipeline swing joint, the equal fixedly connected with hot plate in both sides of temperature regulation jar inner chamber, the bottom of temperature regulation jar has the second water pump through pipeline swing joint.
The above prior art solutions have the following drawbacks: the above-mentioned related sewage treatment systems mainly use physical treatment methods such as mud guards and filtration, and the treatment effect of sewage is still not ideal, so they still need to be improved.
Disclosure of Invention
In order to improve the treatment effect of sewage and enable the sewage treatment to be more complete, the application provides an energy-saving and emission-reducing town sewage treatment system.
The application provides an energy-saving emission-reducing town sewage treatment system, which adopts the following technical scheme:
an energy-saving emission-reducing town sewage treatment system comprises a filtering sedimentation tank and a sewage treatment tank, wherein a sewage treatment agent is added into the sewage treatment tank; in each liter of sewage, the sewage treatment agent comprises the following raw materials in parts by weight:
40-50 parts of aminophosphonic acid resin;
10-15 parts of tetramethyl dipropylene triamine;
8-10 parts of an amide polymer;
3-5 parts of carboxymethyl starch.
By adopting the technical scheme, the aminophosphonic acid resin capable of effectively removing divalent metal ions is taken as a matrix, and the tetramethyldipropylenetriamine and the amide polymer are mixed and reacted to obtain a multi-branched mixed product, so that the multi-branched mixed product can be combined with the carboxymethyl starch more stably to obtain a product with stronger flocculation capacity; finally, the obtained product is mixed with aminophosphonic acid resin, so that a sewage treatment agent with better sewage treatment capacity can be obtained, and the water quality clarification is promoted.
Preferably: the amide polymer comprises the following components: 15-20 parts of 3, 5-diaminobenzoic acid, 3-4 parts of 3, 5-dichlorobenzoyl chloride, 6-8 parts of 4-amino-1-benzylpiperidine and 8-10 parts of polyoxyethylene polyoxypropylene ether.
By adopting the technical scheme, 3, 5-diaminobenzoic acid, 3, 5-dichlorobenzoyl chloride, 4-amino-1-benzylpiperidine and polyoxyethylene polyoxypropylene ether are mixed and react to obtain the amide polymer with a linear main chain and a dendronized side chain, so that the multi-branched amide polymer is easier to react with tetramethyl dipropylene triamine and carboxymethyl starch to obtain a product with an adsorption and bridging effect, and the active groups carried on the side chains can be utilized to generate a net catching effect through the self-bridging effect to catch other impurities and suspended particles, thereby improving the flocculation capacity of the sewage treatment agent.
Preferably: the preparation method of the amide polymer comprises the following steps: mixing 3, 5-diaminobenzoic acid and 3, 5-dichlorobenzoyl chloride at 70-80 ℃ and reacting to synthesize a side chain unit, preserving heat for 1-1.5h, and then reacting with 4-amino-1-benzylpiperidine; and finally, heating to 80-95 ℃, preserving the heat for 2-3h, and reacting with polyoxyethylene polyoxypropylene amine ether for 3-3.5h to obtain the amide polymer.
By adopting the technical scheme, the 3, 5-diaminobenzoic acid and the 3, 5-dichlorobenzoyl chloride are kept at 70-80 ℃ to react for 1-1.5h, the reaction is more complete, more stable side chain units can be obtained, then the macromolecular monomers can be obtained by reacting with the 4-amino-1-benzylpiperidine, the preparation is further made for obtaining the amide polymer, and finally the multi-branched amide polymer is obtained by reacting with the polyoxyethylene polyoxypropylene amine ether, so that the adsorption and flocculation effects are better, and the aim of improving the treatment effect of the sewage treatment agent is fulfilled.
Preferably: the weight part ratio of the 3, 5-diaminobenzoic acid, the 4-amino-1-benzylpiperidine and the polyoxyethylene polyoxypropylene amine ether is 10: 3: 5.
by adopting the technical scheme, experiments prove that the weight part ratio of the 3, 5-diaminobenzoic acid, the 4-amino-1-benzylpiperidine and the polyoxyethylene polyoxypropylene ether is controlled to be 10: 3: and 5, the treatment effect of the obtained sewage treatment agent can be effectively improved.
Preferably, the following components: the weight part ratio of the tetramethyl dipropylene triamine to the amide polymer to the carboxymethyl starch is 3:2: 1.
By adopting the technical scheme, experiments prove that the weight part ratio of the tetramethyl dipropylene triamine to the amide polymer to the carboxymethyl starch is controlled to be 3:2:1, so that the overall treatment effect of the sewage treatment agent on the sewage is improved.
Preferably: the raw materials also comprise 3-4 parts of polyferric chloride by weight.
By adopting the technical scheme, the polyferric chloride can effectively remove aluminum ions in source water and residual free aluminum ions in water after aluminum salt coagulation, and has the advantages of small dosage and good treatment effect.
Preferably: the preparation method of the sewage treatment agent comprises the following steps:
reacting amide polymer and tetramethyl dipropylene triamine at 70-80 ℃ for 40-50min, adding carboxymethyl starch, continuing to react at 80-90 ℃ for 2-3h, adding aminophosphoric acid resin, and reacting for 0.5-1h while maintaining 80-90 ℃.
Preferably: the preparation method of the sewage treatment agent further comprises the following steps:
mixing 15-20 parts of 3, 5-diaminobenzoic acid and 3-4 parts of 3, 5-dichlorobenzoyl chloride at 70-80 ℃ to react to synthesize a side chain unit, preserving heat for 1-1.5h, and then reacting with 6-8 parts of 4-amino-1-benzylpiperidine; finally, heating to 80-95 ℃ and preserving heat for 2-3h, and reacting with 8-10 parts of polyoxyethylene polyoxypropylene amine ether for 3-3.5h to obtain an amide polymer;
8-10 parts of amide polymer and 10-15 parts of tetramethyl dipropylene triamine are reacted for 40-50min at the temperature of 70-80 ℃, then 3-5 parts of carboxymethyl starch are added, the reaction is continued for 2-3h at the temperature of 80-90 ℃, then 40-50 parts of amino phosphoric acid resin and 3-4 parts of polyferric chloride are added, the temperature is maintained at 80-90 ℃, and the reaction lasts for 0.5-1 h.
Detailed Description
The present application will be described in further detail with reference to examples.
In the application, the phosphoramidate resin is MTS9300 resin of Xinxiangsai Ruite environmental protection science and technology Limited; tetramethyl dipropylene triamine is purchased from Shanghai Chen Yu chemical Co., Ltd, and has the purity: 97, a stabilizer; carboxymethyl starch is available from Jinan san Jose and chemical Co., Ltd; the polyferric chloride was purchased from green water environmental protection facilities, Inc. of road and bridge, Taizhou.
The raw materials used in the following embodiments may be those conventionally commercially available unless otherwise specified.
In the application, the structure of the amide polymer is characterized by an infrared and nuclear magnetic spectrum test means, and the multi-branched structure of the product is verified; and the molecular weight of the amide polymer was measured to be 1.07X 105。
Examples
Example 1
The application discloses an energy-saving emission-reducing town sewage treatment system, which comprises a precipitation filter tank and a sewage treatment tank, wherein a sewage treatment agent is added into the sewage treatment tank; in each liter of sewage, the sewage treatment agent comprises the following raw materials: phosphoramidate resins, tetramethyldipropylenetriamine, amide polymers, and carboxymethyl starch; wherein, the components of the amide polymer comprise 15 parts of 3, 5-diaminobenzoic acid, 3 parts of 3, 5-dichlorobenzoyl chloride, 6 parts of 4-amino-1-benzyl piperidine and 8 parts of polyoxyethylene polyoxypropylene ether; the contents of the components are shown in table 1 below.
The preparation method of the sewage treatment agent comprises the following steps: mixing 3, 5-diaminobenzoic acid and 3, 5-dichlorobenzoyl chloride at 70 ℃ and reacting to synthesize a side chain unit, preserving heat for 1h, and then reacting with 4-amino-1-benzylpiperidine; finally, heating to 80 ℃ and preserving the temperature for 2h, and then reacting with polyoxyethylene polyoxypropylene ether for 3h to obtain a multi-branched amide polymer;
reacting amide polymer with tetramethyl dipropylene triamine at 70 ℃ for 40min, adding carboxymethyl starch, continuing to react at 80 ℃ for 2h, adding aminophosphoric acid resin, and maintaining at 80 ℃ for 0.5 h.
Example 2
The application discloses an energy-saving emission-reducing town sewage treatment system, which comprises a precipitation filter tank and a sewage treatment tank, wherein a sewage treatment agent is added into the sewage treatment tank; in each liter of sewage, the sewage treatment agent comprises the following raw materials: phosphoramidate resins, tetramethyldipropylenetriamine, amide polymers, and carboxymethyl starch; wherein, the components of the amide polymer comprise 20 parts of 3, 5-diaminobenzoic acid, 4 parts of 3, 5-dichlorobenzoyl chloride, 8 parts of 4-amino-1-benzylpiperidine and 10 parts of polyoxyethylene polyoxypropylene ether; the contents of the components are shown in table 1 below.
The preparation method of the sewage treatment agent comprises the following steps: mixing 3, 5-diaminobenzoic acid and 3, 5-dichlorobenzoyl chloride at 80 ℃ and reacting to synthesize a side chain unit, preserving heat for 1.5h, and then reacting with 4-amino-1-benzylpiperidine; finally, heating to 95 ℃ and preserving the temperature for 3h, and then reacting with polyoxyethylene polyoxypropylene ether for 3.5h to obtain a multi-branched amide polymer;
the amide polymer and the tetramethyl dipropylene triamine are reacted for 50min at the temperature of 80 ℃, then the carboxymethyl starch is added, the reaction is continued for 3h at the temperature of 90 ℃, then the aminophosphoric acid resin is added, and the reaction is maintained for 1h at the temperature of 90 ℃.
Example 3
The application discloses an energy-saving emission-reducing town sewage treatment system, which comprises a precipitation filter tank and a sewage treatment tank, wherein a sewage treatment agent is added into the sewage treatment tank; in each liter of sewage, the sewage treatment agent comprises the following raw materials: phosphoramidate resin, tetramethyldipropylenetriamine, amide polymer, and carboxymethyl starch; wherein, the components of the amide polymer comprise 17 parts of 3, 5-diaminobenzoic acid, 3.5 parts of 3, 5-dichlorobenzoyl chloride, 7 parts of 4-amino-1-benzylpiperidine and 9 parts of polyoxyethylene polyoxypropylene ether; the contents of the components are shown in table 1 below.
The preparation method of the sewage treatment agent comprises the following steps: mixing 3, 5-diaminobenzoic acid and 3, 5-dichlorobenzoyl chloride at 75 ℃ and reacting to synthesize a side chain unit, preserving heat for 1.2h, and then reacting with 4-amino-1-benzylpiperidine; finally, heating to 88 ℃ and preserving the temperature for 2.5h, and then reacting with polyoxyethylene polyoxypropylene amine ether for 3h to obtain a multi-branched amide polymer;
reacting amide polymer with tetramethyl dipropylene triamine at 75 ℃ for 45min, adding carboxymethyl starch, continuously reacting at 85 ℃ for 2.5h, adding phosphoramidate resin, maintaining at 85 ℃ and reacting for 0.8 h.
Example 4
The application discloses an energy-saving emission-reducing town sewage treatment system, which comprises a precipitation filter tank and a sewage treatment tank, wherein a sewage treatment agent is added into the sewage treatment tank; in each liter of sewage, the sewage treatment agent comprises the following raw materials: phosphoramidate resins, tetramethyldipropylenetriamine, amide polymers, carboxymethyl starch, and polymeric ferric chloride; wherein, the components of the amide polymer comprise 15 parts of 3, 5-diaminobenzoic acid, 3 parts of 3, 5-dichlorobenzoyl chloride, 6 parts of 4-amino-1-benzyl piperidine and 8 parts of polyoxyethylene polyoxypropylene ether; the contents of the components are shown in table 1 below.
The preparation method of the sewage treatment agent comprises the following steps: mixing 3, 5-diaminobenzoic acid and 3, 5-dichlorobenzoyl chloride at 70 ℃ and reacting to synthesize a side chain unit, preserving heat for 1h, and then reacting with 4-amino-1-benzylpiperidine; finally, heating to 80 ℃ and preserving the temperature for 2h, and then reacting with polyoxyethylene polyoxypropylene ether for 3h to obtain a multi-branched amide polymer;
the amide polymer and the tetramethyl dipropylene triamine are reacted for 40min at the temperature of 70 ℃, then the carboxymethyl starch is added, the reaction is continued for 2h at the temperature of 80 ℃, then the amino phosphoric acid resin and the polymeric ferric chloride are added, the temperature is maintained at 80 ℃, and the reaction is carried out for 0.5 h.
Example 5
The application discloses an energy-saving emission-reducing town sewage treatment system, which comprises a precipitation filter tank and a sewage treatment tank, wherein a sewage treatment agent is added into the sewage treatment tank; in each liter of sewage, the sewage treatment agent comprises the following raw materials: phosphoramidate resins, tetramethyldipropylenetriamine, amide polymers, carboxymethyl starch, and polymeric ferric chloride; wherein, the components of the amide polymer comprise 20 parts of 3, 5-diaminobenzoic acid, 4 parts of 3, 5-dichlorobenzoyl chloride, 8 parts of 4-amino-1-benzylpiperidine and 10 parts of polyoxyethylene polyoxypropylene ether; the contents of the components are shown in table 1 below.
The preparation method of the sewage treatment agent comprises the following steps: mixing 3, 5-diaminobenzoic acid and 3, 5-dichlorobenzoyl chloride at 80 ℃ and reacting to synthesize a side chain unit, preserving heat for 1.5h, and then reacting with 4-amino-1-benzylpiperidine; finally, heating to 95 ℃ and preserving the temperature for 3h, and then reacting with polyoxyethylene polyoxypropylene ether for 3.5h to obtain a multi-branched amide polymer;
the amide polymer and tetramethyl dipropylene triamine are reacted for 50min at the temperature of 80 ℃, then carboxymethyl starch is added, the reaction is continued for 3h at the temperature of 90 ℃, then aminophosphoric acid resin and polymeric ferric chloride are added, the temperature is maintained at 90 ℃ and the reaction is continued for 1 h.
Example 6
The application discloses an energy-saving emission-reducing town sewage treatment system, which comprises a precipitation filter tank and a sewage treatment tank, wherein a sewage treatment agent is added into the sewage treatment tank; in each liter of sewage, the sewage treatment agent comprises the following raw materials: phosphoramidate resins, tetramethyldipropylenetriamine, amide polymers, carboxymethyl starch, and polymeric ferric chloride; wherein, the components of the amide polymer comprise 17 parts of 3, 5-diaminobenzoic acid, 3.5 parts of 3, 5-dichlorobenzoyl chloride, 7 parts of 4-amino-1-benzylpiperidine and 9 parts of polyoxyethylene polyoxypropylene ether; the contents of the components are shown in table 1 below.
The preparation method of the sewage treatment agent comprises the following steps: mixing 3, 5-diaminobenzoic acid and 3, 5-dichlorobenzoyl chloride at 75 ℃ and reacting to synthesize a side chain unit, preserving heat for 1.2h, and then reacting with 4-amino-1-benzylpiperidine; finally, heating to 88 ℃ and preserving the temperature for 2.5h, and then reacting with polyoxyethylene polyoxypropylene amine ether for 3h to obtain a multi-branched amide polymer;
reacting amide polymer and tetramethyl dipropylene triamine at 75 ℃ for 45min, adding carboxymethyl starch, continuing to react at 85 ℃ for 2.5h, adding phosphoramidate resin and polyferric chloride, and maintaining at 85 ℃ for 0.8 h.
Example 7
The difference from the example 1 is that the weight part ratio of the 3, 5-diaminobenzoic acid, the 4-amino-1-benzylpiperidine and the polyoxyethylene polyoxypropylene ether is 10: 3: 5, 20 parts of 3, 5-diaminobenzoic acid, 6 parts of 4-amino-1-benzylpiperidine and 10 parts of polyoxyethylene polyoxypropylene ether are used, and the content of each component is shown in the following table 2.
Example 8
The difference from example 1 is that the weight part ratio of the tetramethyldipropylenetriamine to the amide polymer to the carboxymethyl starch is 3:2:1, and the content of each component is shown in table 2 below.
Example 9
The difference from example 1 is that 3, 5-diaminobenzoic acid was replaced with oxalic acid and the contents of the components are shown in table 2 below.
Example 10
The difference from example 9 is that 3, 5-dichlorobenzoyl chloride was replaced with acetanilide, and the contents of the respective components are shown in the following table 2.
Example 11
The difference from example 10 is that 4-amino-1-benzylpiperidine is replaced with benzylamine and the contents of each component are shown in Table 2 below.
Example 12
The difference from example 11 is that polyoxyethylene polyoxypropylene amine ether is replaced with allyl ether, and the contents of the components are shown in Table 2 below.
Example 13
The difference from example 4 is that the polymeric ferric chloride is replaced by bentonite, and the contents of the components are shown in table 2 below.
Comparative example
Comparative example 1
The sewage without the sewage treatment agent is used as a blank control group, the turbidity of the sewage is 100NTU, and the COD is 240 mg/L.
Comparative example 2
The sewage treated by the sewage treatment system of the patent publication No. CN106946416A was used as comparative example 2.
Comparative example 3
The difference from example 1 is that tetramethyldipropylenetriamine was replaced with tetrabutylammonium bromide and the contents of the respective components are shown in table 1 below.
Comparative example 4
The difference from example 3 is that the amide polymer is replaced with polyacrylamide and the contents of the respective components are shown in table 1 below.
Comparative example 5
The difference from example 1 is that carboxymethyl starch was replaced with maltodextrin, and the contents of the components are shown in table 1 below.
TABLE 1 component content tables of examples 1 to 6 and comparative examples 3 to 5
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Examples6 | Comparative example 3 | Comparative example 4 | Comparative example 5 | |
| Phosphoramidate resins | 40 | 50 | 45 | 40 | 50 | 45 | 40 | 40 | 40 |
| Tetramethyldipropylenetriamine/tetrabutylammonium bromide | 10 | 15 | 13 | 10 | 15 | 13 | 10 | 10 | 10 |
| Amide polymer/polyacrylamide | 8 | 10 | 9 | 8 | 10 | 9 | 8 | 8 | 8 |
| Carboxymethyl starch/maltodextrin | 3 | 5 | 4 | 3 | 5 | 4 | 3 | 3 | 3 |
| Polymeric ferric chloride | / | / | / | 3 | 4 | 4 | / | / | / |
TABLE 2 ingredient content tables for examples 7-13
| Example 7 | Example 8 | Example 9 | Example 10 | Example 11 | Example 12 | Example 13 | |
| Phosphoramidate resins | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Tetramethyl dipropylene triamine | 10 | 12 | 10 | 10 | 10 | 10 | 10 |
| Amide polymer/polyacrylamide | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Carboxymethyl starch | 3 | 4 | 3 | 3 | 3 | 3 | 3 |
| Polyferric chloride/bentonite | / | / | / | 3 |
Performance test
Taking sewage with turbidity of 100NTU and COD of 240mg/L as sewage to be treated in the test; when the sewage treatment systems of the above examples and comparative examples are used for treating sewage, COD and turbidity are determined according to the Water and wastewater monitoring and analyzing method, and the smaller the COD and turbidity is, the better the sewage treatment effect is; the test results are shown in table 3 below.
TABLE 3 table of results of performance test of each example and comparative example
| COD/（mg/L） | Turbidity (NTU) | |
| Example 1 | 65 | 3.8 |
| Example 2 | 60 | 3.2 |
| Example 3 | 63 | 3.6 |
| Example 4 | 54 | 2.0 |
| Example 5 | 47 | 1.4 |
| Example 6 | 50 | 1.7 |
| Example 7 | 61 | 3.4 |
| Example 8 | 60 | 3.2 |
| Example 9 | 67 | 4.0 |
| Example 10 | 68 | 4.2 |
| Example 11 | 70 | 4.5 |
| Example 12 | 73 | 4.8 |
| Example 13 | 57 | 2.4 |
| Comparative example 1 | 240 | 100 |
| Comparative example 2 | 85 | 6.1 |
| Comparative example 3 | 68 | 4.3 |
| Comparative example 4 | 72 | 4.7 |
| Comparative example 5 | 73 | 4.8 |
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications to the present embodiment as necessary without inventive contribution after reading the present specification, but all are protected by patent law within the scope of the claims of the present application.
Claims (5)
1. The utility model provides an energy saving and emission reduction type town sewage treatment system, includes filtering sedimentation tank and sewage treatment pond, its characterized in that: adding a sewage treatment agent into the sewage treatment tank; in each liter of sewage, the sewage treatment agent comprises the following raw materials in parts by weight:
40-50 parts of aminophosphonic acid resin;
10-15 parts of tetramethyl dipropylene triamine;
8-10 parts of an amide polymer;
3-5 parts of carboxymethyl starch;
the amide polymer comprises the following components: 15-20 parts of 3, 5-diaminobenzoic acid, 3-4 parts of 3, 5-dichlorobenzoyl chloride, 6-8 parts of 4-amino-1-benzylpiperidine and 8-10 parts of polyoxyethylene polyoxypropylene ether;
the preparation method of the amide polymer comprises the following steps: mixing 3, 5-diaminobenzoic acid and 3, 5-dichlorobenzoyl chloride at 70-80 ℃ and reacting to synthesize a side chain unit, preserving heat for 1-1.5h, and then reacting with 4-amino-1-benzylpiperidine; finally, heating to 80-95 ℃, preserving the temperature for 2-3h, and reacting with polyoxyethylene polyoxypropylene amine ether for 3-3.5h to obtain an amide polymer;
the preparation method of the sewage treatment agent comprises the following steps: reacting amide polymer and tetramethyl dipropylene triamine at 70-80 ℃ for 40-50min, adding carboxymethyl starch, continuing to react at 80-90 ℃ for 2-3h, adding aminophosphoric acid resin, and reacting for 0.5-1h while maintaining 80-90 ℃.
2. The energy-saving emission-reducing town sewage treatment system according to claim 1, wherein: the weight part ratio of the 3, 5-diaminobenzoic acid, the 4-amino-1-benzylpiperidine and the polyoxyethylene polyoxypropylene amine ether is 10: 3: 5.
3. the energy-saving emission-reducing town sewage treatment system according to claim 1, wherein: the weight part ratio of the tetramethyl dipropylene triamine to the amide polymer to the carboxymethyl starch is 3:2: 1.
4. The energy-saving emission-reducing town sewage treatment system according to claim 1, wherein: the raw materials also comprise 3-4 parts of polyferric chloride by weight.
5. The energy-saving emission-reducing town sewage treatment system according to claim 4, wherein: the preparation method of the sewage treatment agent further comprises the following steps:
8-10 parts of amide polymer and 10-15 parts of tetramethyl dipropylene triamine are reacted for 40-50min at the temperature of 70-80 ℃, then 3-5 parts of carboxymethyl starch are added, the reaction is continued for 2-3h at the temperature of 80-90 ℃, then 40-50 parts of amino phosphoric acid resin and 3-4 parts of polyferric chloride are added, the temperature is maintained at 80-90 ℃, and the reaction lasts for 0.5-1 h.
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| US4224149A (en) * | 1979-04-30 | 1980-09-23 | American Cyanamid Company | Process useful in the flocculation of phosphate slimes |
| CN101550220A (en) * | 2009-01-08 | 2009-10-07 | 中国矿业大学(北京) | Cationic degree adjustable dual-function type fine particle used starch flocculant prepared with on-step method and synthesizing method thereof |
| CN101585572A (en) * | 2009-06-09 | 2009-11-25 | 湖南科技大学 | A kind of amphiprotic high-molecule chelated flocculating agent and preparation method thereof |
| CN102229690A (en) * | 2011-05-17 | 2011-11-02 | 浙江大学 | Method for preparing starch grafted hyperbranched amide polymer |
| CN102286132A (en) * | 2011-05-17 | 2011-12-21 | 浙江大学 | Method for preparing starch graft cationic type hyperbranched amide polymer |
| CN104649398A (en) * | 2015-02-12 | 2015-05-27 | 广东电网有限责任公司电力科学研究院 | Organic polymer heavy metal chelating flocculant as well as preparation method and application thereof |
| CN105152291A (en) * | 2015-08-12 | 2015-12-16 | 成都理工大学 | PAFSI-PAME composite flocculant and preparation method thereof |
| CN106946416A (en) * | 2017-05-09 | 2017-07-14 | 温州市威利达皮革原料有限公司 | Sewage disposal system |
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