CN115974196A - Composite medicament for efficiently removing total nitrogen in water and preparation method thereof - Google Patents
Composite medicament for efficiently removing total nitrogen in water and preparation method thereof Download PDFInfo
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- CN115974196A CN115974196A CN202310116298.1A CN202310116298A CN115974196A CN 115974196 A CN115974196 A CN 115974196A CN 202310116298 A CN202310116298 A CN 202310116298A CN 115974196 A CN115974196 A CN 115974196A
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses a composite medicament for efficiently removing total nitrogen in water and a preparation method thereof, wherein the composite medicament comprises the following raw materials: a main medicament, an auxiliary medicament, a PH regulator, an adsorbent and an auxiliary agent; the specific formula comprises the following raw materials: 100-200g of main medicament, 100-200g of auxiliary medicament, 10-20g of PH regulator, 20-50g of adsorbent and 5-10g of auxiliary agent; the composite medicament formed by the main medicament and the auxiliary medicament can break hydrogen bonds between water molecules and N2 molecules, so that the N2 molecules get rid of the binding force of the water molecules, and nitrogen overflows, and in addition, after calcium chloride and hydroxide ions react to become calcium hydroxide flocculation precipitation, part of nitrogen dioxide dissolved in wastewater overflows, so that the effect of reducing total nitrogen is achieved, and the total nitrogen content meets the national standard.
Description
Technical Field
The invention relates to the technical field of water body treatment, in particular to a composite medicament for efficiently removing total nitrogen in water and a preparation method thereof.
Background
The sewage mainly comprises domestic sewage and industrial sewage, the components of the industrial sewage are relatively complex, particularly a large amount of artificially synthesized compounds enter the environment, the substances are mainly ammonia nitrogen compounds, and due to the complexity of the structures of the substances, the substances cannot be decomposed and utilized by microorganisms in a short time.
The existing treatment methods mainly comprise an ion exchange method, a membrane separation method, biological nitrogen removal, a blow-off method, a wet catalytic oxidation method, a chemical precipitation method and the like, among the various methods for removing total nitrogen, the ion exchange method, the membrane separation method and the various processes for biological nitrogen removal are suitable for treating low-concentration ammonia nitrogen wastewater, and the treatment effect on high-concentration ammonia nitrogen wastewater is not good, wherein the biological nitrogen removal is most widely applied, the blow-off method and the wet catalytic oxidation method have strict requirements on the operation process, the blow-off method blows ammonia into the atmosphere to cause secondary pollution, the catalyst price of the wet catalytic oxidation method is high, the chemical precipitation method can fix ammonia and phosphorus in wastewater in the form of precipitates, and the treatment processes in the above modes are relatively complex and are not suitable for simply treating the total nitrogen content in water.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a composite medicament for efficiently removing total nitrogen in water and a preparation method thereof, so as to solve the problems in the background technology.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the invention provides a composite medicament for efficiently removing total nitrogen in water and a preparation method thereof, wherein the composite medicament comprises the following raw materials:
a main medicament, an auxiliary medicament, a PH regulator, an adsorbent and an auxiliary agent;
the specific formula comprises the following raw materials: 100-200g of main medicament, 100-200g of auxiliary medicament, 10-20g of PH regulator, 20-50g of adsorbent and 5-10g of auxiliary agent.
Preferably, the composite medicament for efficiently removing total nitrogen in water, the preparation method and the processing technology thereof comprise the following raw materials:
160g of main medicament, 145g of auxiliary medicament, 17g of PH regulator, 30g of adsorbent and 8g of auxiliary agent.
Preferably, the main medicament is prepared by mixing one or more of flake graphite tailing powder, phosphate, adenosine triphosphate, magnesium carbonate, magnesium oxide, magnesium hydroxide, sodium carboxymethylcellulose and potassium ferrate.
Preferably, the secondary medicament is one or more of dodecyl benzene sulfonic acid, silicon dioxide, bentonite, magnesium chloride, sodium chloride and potassium carbonate.
Preferably, the adsorbent is mixed by one or more of powdered activated carbon, zeolite, hydrochloric acid, deionized water, and surfactant.
Preferably, the pH regulator is one or more of lime powder, baking soda, sodium hydroxide, sodium carbonate, sodium borate and sodium phosphate.
Preferably, the auxiliary agent is one or more of polyacrylamide, sodium polyacrylate, ferrous chloride, sodium metabisulfite and sodium thiosulfate.
The invention also provides a composite medicament for efficiently removing the total nitrogen in water and a preparation method thereof, and the composite medicament comprises the following steps:
removing impurities from a main medicament, a pH regulator and an adsorbent in an impurity removal box, then putting the main medicament, the pH regulator and the adsorbent into a grinder for grinding and crushing, then screening the main medicament, the pH regulator and the adsorbent by a nylon sieve of 100-150 meshes to obtain mixture A particles, putting unqualified raw materials into the grinder again for secondary grinding and crushing until the raw materials are qualified, and finally, collecting the obtained qualified mixture A for later use;
removing impurities from the auxiliary agent and the auxiliary agent in an impurity removal box, then putting the auxiliary agent and the auxiliary agent into a grinding machine for grinding and crushing, then sieving the auxiliary agent and the auxiliary agent by a nylon sieve of 100-150 meshes to obtain mixture B particles, putting unqualified raw materials into the grinding machine again for secondary grinding and crushing until the mixture B is qualified, and storing the qualified mixture B for later use;
step three, putting the mixture A and the mixture B obtained in the step one and the step two into a mixer according to the ratio of 1;
and step four, sampling and detecting the composite medicament obtained from the upper layer and the lower layer of the finished product respectively, detecting the proportion of different components in the composite medicament, packaging the qualified composite medicament, and packaging and storing the qualified composite medicament in a dry bag.
Preferably, the impurity removal rate in the first step and the second step reaches 95% -98%, and the raw materials are respectively put into different grinding machines and are strictly forbidden to be mixed for use.
Preferably, in the third step, the mixture A and the mixture B are fed into a rolling drying reactor through a screw feeder, the rotation speed of the drying reactor in the drying process is 50-100 r/min, the mixing time is 10-30 minutes, the drying temperature is kept at 80-90 ℃, and the final water content is kept at 2% -3%.
The composite medicament prepared by the invention can destroy hydrogen bonds between water molecules and N2 molecules through the composite medicament consisting of the main medicament and the auxiliary medicament, so that the N2 molecules get rid of the binding force of the water molecules, and nitrogen overflows, and in addition, after calcium chloride and hydroxyl ions react to be converted into calcium hydroxide for flocculation and precipitation, part of nitrogen dioxide dissolved in waste water overflows, so that the effect of reducing total nitrogen is achieved, and the content of the total nitrogen meets the national standard.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, different raw materials are put into different grinding machines, the grinding machines are prevented from being used in a mixed manner, the raw materials can be prevented from being mixed in advance, the precision of the raw material component proportion and the mixing effect are ensured, the water content of the composite medicament is kept at 2% -3% by drying the composite medicament, the composite medicament is better stored, and the using effect is improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides a composite medicament for efficiently removing total nitrogen in water, which comprises the following raw materials:
a main medicament, an auxiliary medicament, a PH regulator, an adsorbent and an auxiliary agent;
the specific formula comprises the following raw materials: 100-200g of main medicament, 100-200g of auxiliary medicament, 10-20g of PH regulator, 20-50g of adsorbent and 5-10g of auxiliary agent.
The composite medicament for efficiently removing total nitrogen in water, the preparation method and the processing technology thereof comprise the following raw materials:
160g of main medicament, 145g of auxiliary medicament, 17g of PH regulator, 30g of adsorbent and 8g of auxiliary agent.
The main medicament of the embodiment is prepared by mixing one or more of crystalline flake graphite tailing powder, phosphate radical, adenosine triphosphate, magnesium carbonate, magnesium oxide, magnesium hydroxide, sodium carboxymethylcellulose and potassium ferrate.
The auxiliary agent of this example is one or more of dodecylbenzene sulfonic acid, silica, bentonite, magnesium chloride, sodium chloride, and potassium carbonate.
The adsorbent of this example is composed of one or more of powdered activated carbon, zeolite, hydrochloric acid, deionized water, and surfactant.
The PH adjusting agent of the present embodiment is one or more of lime powder, sodium bicarbonate, sodium hydroxide, sodium carbonate, sodium borate, and sodium phosphate.
The auxiliary agent of this embodiment is one or more of polyacrylamide, sodium polyacrylate, ferrous chloride, sodium metabisulfite, and sodium thiosulfate.
The composite medicament for efficiently removing total nitrogen in water and the preparation method thereof comprise the following steps:
removing impurities from a main medicament, a pH regulator and an adsorbent in an impurity removal box, then putting the main medicament, the pH regulator and the adsorbent into a grinder for grinding and crushing, then screening the main medicament, the pH regulator and the adsorbent by a nylon sieve of 100-150 meshes to obtain mixture A particles, putting unqualified raw materials into the grinder again for secondary grinding and crushing until the raw materials are qualified, and finally, collecting the obtained qualified mixture A for later use;
removing impurities from the auxiliary agent and the auxiliary agent in an impurity removal box, then putting the auxiliary agent and the auxiliary agent into a grinding machine for grinding and crushing, then sieving the auxiliary agent and the auxiliary agent by a nylon sieve of 100-150 meshes to obtain mixture B particles, putting unqualified raw materials into the grinding machine again for secondary grinding and crushing until the raw materials are qualified, and storing the obtained qualified mixture B for later use;
step three, putting the mixture A and the mixture B obtained in the step one and the step two into a mixer according to the ratio of 1;
and step four, sampling and detecting the composite medicament obtained from the upper layer and the lower layer of the finished product respectively, detecting the proportion of different components in the composite medicament, packaging the qualified composite medicament, and packaging and storing the qualified composite medicament in a dry bag.
In the embodiment, the impurity removal rate in the first step and the second step reaches 95% -98%, and the raw materials are respectively put into different grinding machines and are strictly forbidden to be mixed for use.
In the third step of this embodiment, the mixture a and the mixture B are fed into a roll-to-roll drying reactor by a screw feeder, the rotation speed of the drying reactor in the drying process is 50-100 r/min, the mixing time is 10-30 minutes, and the drying temperature is kept at 80-90 ℃ to keep the final water content at 2% -3%.
Example 1.
The invention provides a composite medicament for efficiently removing total nitrogen in water, which comprises the following raw materials:
a main medicament, an auxiliary medicament, a PH regulator, an adsorbent and an auxiliary agent;
the specific formula comprises the following raw materials: 110g of main medicament, 110g of auxiliary medicament, 10g of PH regulator, 20g of adsorbent and 5g of auxiliary agent.
The main medicament of the embodiment is prepared by mixing one or more of crystalline flake graphite tailings powder, phosphate radicals, adenosine triphosphate, magnesium carbonate, magnesium oxide, magnesium hydroxide, sodium carboxymethylcellulose and potassium ferrate.
The auxiliary agent of this example is one or more of dodecylbenzene sulfonic acid, silica, bentonite, magnesium chloride, sodium chloride, and potassium carbonate.
The adsorbent of this example is composed of one or more of powdered activated carbon, zeolite, hydrochloric acid, deionized water, and surfactant.
The PH adjusting agent of the present embodiment is one or more of lime powder, sodium bicarbonate, sodium hydroxide, sodium carbonate, sodium borate, and sodium phosphate.
The auxiliary agent of this embodiment is one or more of polyacrylamide, sodium polyacrylate, ferrous chloride, sodium metabisulfite, and sodium thiosulfate.
The composite medicament for efficiently removing total nitrogen in water and the preparation method thereof comprise the following steps:
removing impurities from a main medicament, a pH regulator and an adsorbent in an impurity removal box, then putting the main medicament, the pH regulator and the adsorbent into a grinder for grinding and crushing, then sieving the main medicament, the pH regulator and the adsorbent through a 120-mesh nylon sieve to obtain mixture A particles, putting unqualified raw materials into the grinder again for secondary grinding and crushing until the raw materials are qualified, and finally, collecting the obtained qualified mixture A for later use;
removing impurities from the auxiliary agent and the auxiliary agent in an impurity removal box, then putting the auxiliary agent and the auxiliary agent into a grinding machine for grinding and crushing, then sieving the auxiliary agent and the auxiliary agent by a nylon sieve of 120 meshes to obtain mixture B particles, putting unqualified raw materials into the grinding machine again for secondary grinding and crushing until the raw materials are qualified, and storing the obtained qualified mixture B for later use;
step three, putting the mixture A and the mixture B obtained in the step one and the step two into a mixer according to the ratio of 1;
and step four, sampling and detecting the composite medicament obtained from the upper layer and the lower layer of the finished product respectively, detecting the proportion of different components in the composite medicament, packaging the qualified composite medicament, and packaging and storing the qualified composite medicament in a dry bag.
In the first and second steps of this example, the impurity removal rate reached 95%, and the raw materials were put into different grinders, strictly mixed for use.
In the third step of this example, the mixture a and the mixture B are fed into a roll-to-roll drying reactor through a screw feeder, the rotation speed of the drying reactor in the drying process is 60 rpm, the mixing time is 12 minutes, and the drying temperature is kept at 80 ℃, so that the final water content is kept at 2%.
Example 2.
The invention provides a composite medicament for efficiently removing total nitrogen in water, which comprises the following raw materials:
a main medicament, an auxiliary medicament, a PH regulator, an adsorbent and an auxiliary agent;
the specific formula comprises the following raw materials: 150g of main medicament, 155g of auxiliary medicament, 16g of PH regulator, 35g of adsorbent and 7g of auxiliary agent.
The main medicament of the embodiment is prepared by mixing one or more of crystalline flake graphite tailing powder, phosphate radical, adenosine triphosphate, magnesium carbonate, magnesium oxide, magnesium hydroxide, sodium carboxymethylcellulose and potassium ferrate.
The auxiliary agent of this example is one or more of dodecylbenzene sulfonic acid, silica, bentonite, magnesium chloride, sodium chloride, and potassium carbonate.
The adsorbent of the embodiment is formed by mixing one or more of powdered activated carbon, zeolite, hydrochloric acid, deionized water and surfactant.
The PH adjusting agent of the present embodiment is one or more of lime powder, sodium bicarbonate, sodium hydroxide, sodium carbonate, sodium borate, and sodium phosphate.
The auxiliary agent of this embodiment is one or more of polyacrylamide, sodium polyacrylate, ferrous chloride, sodium metabisulfite, and sodium thiosulfate.
The composite medicament for efficiently removing total nitrogen in water and the preparation method thereof comprise the following steps:
removing impurities from a main medicament, a pH regulator and an adsorbent in an impurity removal box, then putting the main medicament, the pH regulator and the adsorbent into a grinder for grinding and crushing, then sieving the main medicament, the pH regulator and the adsorbent through a 130-mesh nylon sieve to obtain mixture A particles, putting unqualified raw materials into the grinder again for secondary grinding and crushing until the raw materials are qualified, and finally, collecting the obtained qualified mixture A for later use;
removing impurities from the auxiliary agent and the auxiliary agent in an impurity removal box, then putting the auxiliary agent and the auxiliary agent into a grinding machine for grinding and crushing, then sieving the auxiliary agent and the auxiliary agent by a nylon sieve of 130 meshes to obtain mixture B particles, putting unqualified raw materials into the grinding machine again for secondary grinding and crushing until the raw materials are qualified, and storing the obtained qualified mixture B for later use;
step three, putting the mixture A and the mixture B obtained in the step one and the step two into a mixer according to the ratio of 1;
and step four, sampling and detecting the upper layer and the lower layer of the finished product to obtain the composite medicament, detecting the proportion of different components in the composite medicament, packaging the qualified composite medicament, and packaging and storing the qualified composite medicament in a drying bag.
In the first and second steps of this example, the impurity removal rate reached 97%, and the raw materials were put into different grinders, respectively, and were not strictly mixed for use.
In the third step of this example, the mixture a and the mixture B were fed into a roll-to-roll drying reactor by a screw feeder, the rotation speed of the drying reactor during the drying process was 78 rpm, the mixing time was 25 minutes, and the drying temperature was maintained at 88 degrees, so that the final water content was maintained at 2.5%.
Example 3.
The invention provides a composite medicament for efficiently removing total nitrogen in water, which comprises the following raw materials:
a main medicament, an auxiliary medicament, a PH regulator, an adsorbent and an auxiliary agent;
the specific formula comprises the following raw materials: 200g of main medicament, 200g of auxiliary medicament, 20g of PH regulator, 50g of adsorbent and 10g of auxiliary agent.
The main medicament of the embodiment is prepared by mixing one or more of crystalline flake graphite tailing powder, phosphate radical, adenosine triphosphate, magnesium carbonate, magnesium oxide, magnesium hydroxide, sodium carboxymethylcellulose and potassium ferrate.
The auxiliary agent of this example is one or more of dodecylbenzene sulfonic acid, silica, bentonite, magnesium chloride, sodium chloride, and potassium carbonate.
The adsorbent of this example is composed of one or more of powdered activated carbon, zeolite, hydrochloric acid, deionized water, and surfactant.
The pH regulator of the embodiment is formed by mixing one or more of lime powder, sodium bicarbonate, sodium hydroxide, sodium carbonate, sodium borate and sodium phosphate.
The auxiliary agent of this embodiment is one or more of polyacrylamide, sodium polyacrylate, ferrous chloride, sodium metabisulfite, and sodium thiosulfate.
The composite medicament for efficiently removing total nitrogen in water and the preparation method thereof comprise the following steps:
removing impurities from a main medicament, a pH regulator and an adsorbent in an impurity removal box, then putting the main medicament, the pH regulator and the adsorbent into a grinder for grinding and crushing, then sieving the main medicament, the pH regulator and the adsorbent through a 150-mesh nylon sieve to obtain mixture A particles, putting unqualified raw materials into the grinder again for secondary grinding and crushing until the raw materials are qualified, and finally, collecting the obtained qualified mixture A for later use;
removing impurities from the auxiliary agent and the auxiliary agent in an impurity removal box, then putting the auxiliary agent and the auxiliary agent into a grinding machine for grinding and crushing, then sieving the auxiliary agent and the auxiliary agent by a 150-mesh nylon sieve to obtain mixture B particles, putting unqualified raw materials into the grinding machine again for secondary grinding and crushing until the mixture B is qualified, and storing the obtained qualified mixture B for later use;
step three, putting the mixture A and the mixture B obtained in the step one and the step two into a mixer according to the ratio of 1;
and step four, sampling and detecting the composite medicament obtained from the upper layer and the lower layer of the finished product respectively, detecting the proportion of different components in the composite medicament, packaging the qualified composite medicament, and packaging and storing the qualified composite medicament in a dry bag.
In the first and second steps of this example, the impurity removal rate reached 98%, and the raw materials were put into different grinders, strictly mixed for use.
In the third step of this example, the mixture a and the mixture B are fed into a roll-to-roll drying reactor through a screw feeder, the rotation speed of the drying reactor in the drying process is 100 rpm, the mixing time is 30 minutes, and the drying temperature is kept at 90 degrees, so that the final water content is kept at 3%.
Comparative example 1.
The difference from example 3 is that the secondary agent in step two is replaced with the primary agent.
Comparative example 2.
Different from the embodiment 3, the raw materials in the first step and the second step are mixed and ground.
Comparative example 3.
Different from example 3, the PH adjuster in the first step was removed.
The products of examples 1-3 and comparative examples 1-3 were subjected to performance tests;
preparing 30 water body samples, wherein 5 water body samples in each group are divided into 6 groups, each group corresponds to examples 1-3 and comparative examples 1-3 and is numbered as A/B/C/D/E/F, pouring the composite medicament into the water body, adding the composite medicament and the water body in a mass ratio of 1.
| pH value | Total nitrogen content (mg/L) | Suspended matter content (mg/L) | |
| Raw water | 5.6 | 2 | 15 |
| A | 6.2 | 0.55 | 8 |
| B | 6.3 | 0.5 | 7 |
| C | 6.5 | 0.4 | 6 |
| D | 6.4 | 1.2 | 6.5 |
| E | 6.5 | 0.42 | 12 |
| F | 5.6 | 0.45 | 6 |
As can be seen from examples 1-3; the composite medicament for efficiently removing the total nitrogen in the water and the preparation method thereof have obvious effect on removing the total nitrogen content of the water body, wherein the minimum content can be reduced to 0.4mg/L.
As can be seen from comparative example 1 and example 3, the agent for removing total nitrogen in water, which is prepared by using the main agent, has less total nitrogen content, but the effect is not as remarkable as that of the present invention;
in addition, the comparison examples 2-3 show that the processing method is also particularly important in preparing the composite medicament for efficiently removing the total nitrogen in the water and the preparation method thereof, different raw materials are put into different grinding machines, the grinding machines are prevented from being mixed for use, the raw materials can be prevented from being mixed in advance, and the precision of the component proportion of the raw materials and the mixing effect are ensured.
The innovation points of the invention are as follows:
the composite medicament formed by the main medicament and the auxiliary medicament can break hydrogen bonds between water molecules and N2 molecules, so that the N2 molecules get rid of the binding force of the water molecules, and nitrogen overflows, and in addition, after calcium chloride and hydroxide ions react to become calcium hydroxide flocculation precipitation, part of nitrogen dioxide dissolved in wastewater overflows, so that the effect of reducing total nitrogen is achieved, and the total nitrogen content meets the national standard.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The composite medicament for efficiently removing the total nitrogen in water is characterized by comprising the following raw materials: a main medicament, an auxiliary medicament, a PH regulator, an adsorbent and an auxiliary agent;
the specific formula comprises the following raw materials: 100-200g of main medicament, 100-200g of auxiliary medicament, 10-20g of PH regulator, 20-50g of adsorbent and 5-10g of auxiliary agent.
2. The compound medicament for efficiently removing the total nitrogen in the water as claimed in claim 1, which comprises the following raw materials:
160g of main medicament, 145g of auxiliary medicament, 17g of PH regulator, 30g of adsorbent and 8g of auxiliary agent.
3. The compound medicament for efficiently removing the total nitrogen in the water as claimed in claim 1, wherein the main medicament is one or more of crystalline flake graphite tailings powder, phosphate radical, adenosine triphosphate, magnesium carbonate, magnesium oxide, magnesium hydroxide, sodium carboxymethylcellulose and potassium ferrate.
4. The compound medicament for efficiently removing the total nitrogen in the water as claimed in claim 1, wherein the secondary medicament is one or more of dodecylbenzene sulfonic acid, silicon dioxide, bentonite, magnesium chloride, sodium chloride and potassium carbonate.
5. The compound medicament for efficiently removing the total nitrogen in the water as claimed in claim 1, wherein the adsorbent is one or more of powdered activated carbon, zeolite, hydrochloric acid, deionized water and surfactant.
6. The compound medicament for removing total nitrogen in water with high efficiency as claimed in claim 1, wherein the pH regulator is one or more of lime powder, sodium bicarbonate, sodium hydroxide, sodium carbonate, sodium borate and sodium phosphate.
7. The compound medicament for efficiently removing the total nitrogen in the water as claimed in claim 1, wherein the auxiliary agent is one or more of polyacrylamide, sodium polyacrylate, ferrous chloride, sodium metabisulfite and sodium thiosulfate.
8. The preparation method of the compound medicament for efficiently removing the total nitrogen in the water as claimed in claim 1, comprising the steps of:
removing impurities from a main medicament, a pH regulator and an adsorbent in an impurity removal box, then putting the main medicament, the pH regulator and the adsorbent into a grinder for grinding and crushing, then screening the main medicament, the pH regulator and the adsorbent by a nylon sieve of 100-150 meshes to obtain mixture A particles, putting unqualified raw materials into the grinder again for secondary grinding and crushing until the raw materials are qualified, and finally, collecting the obtained qualified mixture A for later use;
removing impurities from the auxiliary agent and the auxiliary agent in an impurity removal box, then putting the auxiliary agent and the auxiliary agent into a grinding machine for grinding and crushing, then sieving the auxiliary agent and the auxiliary agent by a nylon sieve of 100-150 meshes to obtain mixture B particles, putting unqualified raw materials into the grinding machine again for secondary grinding and crushing until the raw materials are qualified, and storing the obtained qualified mixture B for later use;
step three, putting the mixture A and the mixture B obtained in the step one and the step two into a mixer according to the ratio of 1;
and step four, sampling and detecting the composite medicament obtained from the upper layer and the lower layer of the finished product respectively, detecting the proportion of different components in the composite medicament, packaging the qualified composite medicament, and packaging and storing the qualified composite medicament in a dry bag.
9. The preparation method of the compound medicament for efficiently removing the total nitrogen in the water as claimed in any one of claims 1 to 8, wherein the impurity removal rate in the first step and the second step reaches 95% -98%, and the raw materials are respectively put into different grinding machines and are strictly forbidden to be mixed for use.
10. The preparation method of the composite medicament for efficiently removing the total nitrogen in the water as claimed in claim 9, wherein in the third step, the mixture A and the mixture B are fed into a roll-to-roll drying reactor through a screw feeder, the rotation speed of the drying reactor is 50-100 r/min in the drying process, the mixing time is 10-30 minutes, and the drying temperature is kept at 80-90 ℃ so that the final water content is kept at 2-3%.
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| CN202310116298.1A CN115974196A (en) | 2023-02-15 | 2023-02-15 | Composite medicament for efficiently removing total nitrogen in water and preparation method thereof |
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| CN202310116298.1A CN115974196A (en) | 2023-02-15 | 2023-02-15 | Composite medicament for efficiently removing total nitrogen in water and preparation method thereof |
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Application publication date: 20230418 |