CN111362423B - Chemical wastewater purifying agent and preparation method thereof - Google Patents
Chemical wastewater purifying agent and preparation method thereof Download PDFInfo
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- CN111362423B CN111362423B CN202010282126.8A CN202010282126A CN111362423B CN 111362423 B CN111362423 B CN 111362423B CN 202010282126 A CN202010282126 A CN 202010282126A CN 111362423 B CN111362423 B CN 111362423B
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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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
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- C02F2101/34—Organic compounds containing oxygen
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Abstract
The invention discloses a chemical wastewater purifying agent and a preparation method thereof, wherein the chemical wastewater purifying agent is prepared from the following raw materials in parts by weight: 5-10 parts of silicon dioxide aerogel, 2-8 parts of graphene oxide, 4-10 parts of zeolite powder, 1-5 parts of carbon fiber, 1-20 parts of solid hydrogel spheres and 5-6 parts of an enzyme-bacterium mixture. The invention uses the high water absorption polymer resin with certain shape to fully absorb water and swell to form solid hydrogel balls and the solid hydrogel balls are used as carbon fiber carriers, the wastewater treatment agent is prepared by adopting a bead string mode, and each bead string at least comprises one solid hydrogel ball which can float on the water surface and two solid hydrogel balls which sink into the water bottom, so that the wastewater treatment agent can fully contact with the wastewater, and the wastewater treatment efficiency is greatly improved.
Description
Technical Field
The invention relates to the field of wastewater treatment, and particularly relates to a chemical wastewater purifying agent and a preparation method thereof.
Background
The chemical wastewater is the wastewater such as process wastewater, cooling water, waste washing water, equipment and site washing water and the like discharged in chemical production. If the waste water is discharged without treatment, the waste water can cause pollution of different properties and different degrees of water bodies, thereby harming human health and influencing industrial and agricultural production. The chemical wastewater pollution has the following characteristics: 1. it is toxic and irritant. Some chemical wastewater contains toxic or highly toxic substances such as cyanogen, phenol, arsenic, mercury, cadmium or lead, and the like, and has toxic effects on organisms and microorganisms at a certain concentration. In addition, it may contain irritant and corrosive substances such as inorganic acids and alkalis. 2. The concentration of organic matters is high. Particularly, the concentration of various organic matters such as organic acid, alcohol, aldehyde, ketone, ether, epoxide and the like in petrochemical wastewater is higher, the organic matters can be further oxidized and decomposed in water, a large amount of dissolved oxygen in the water is consumed, and the survival of aquatic organisms is directly influenced.
Disclosure of Invention
In order to solve the problems, the invention provides a chemical wastewater purifying agent and a preparation method thereof, and the obtained wastewater treating agent has stronger adsorption capacity, can realize quick and effective degradation of harmful substances, and has wide application range.
In order to achieve the purpose, the invention adopts the technical scheme that:
a chemical wastewater purifying agent is prepared from the following raw materials in parts by weight:
5-10 parts of silicon dioxide aerogel, 2-8 parts of graphene oxide, 4-10 parts of zeolite powder, 1-5 parts of carbon fiber, 1-20 parts of solid hydrogel spheres and 5-6 parts of an enzyme-bacterium mixture.
Further, the enzyme-bacterium mixture is prepared from carboxylesterase, bacillus subtilis and photosynthetic bacteria according to the mass ratio of 1: 2: 2, and mixing the components.
Furthermore, the solid hydrogel spheres are formed by fully absorbing water and swelling high-water-absorption polymer resin in a certain form, wherein a part of the solid hydrogel spheres can float on the water surface, and a part of the solid hydrogel spheres can sink to the water bottom.
Preferably, the feed additive is prepared from the following raw materials in parts by weight:
5 parts of silicon dioxide aerogel, 2 parts of graphene oxide, 4 parts of zeolite powder, 1 part of carbon fiber, 1 part of solid hydrogel spheres and 5 parts of zymocyte mixing agent.
Preferably, the feed additive is prepared from the following raw materials in parts by weight:
10 parts of silicon dioxide aerogel, 8 parts of graphene oxide, 10 parts of zeolite powder, 5 parts of carbon fiber, 20 parts of solid hydrogel spheres and 6 parts of zymocyte mixing agent.
Preferably, the feed additive is prepared from the following raw materials in parts by weight:
7.5 parts of silicon dioxide aerogel, 5 parts of graphene oxide, 7 parts of zeolite powder, 3 parts of carbon fiber, 10.5 parts of solid hydrogel spheres and 5.5 parts of an enzyme-bacterium mixture.
The invention also provides a preparation method of the chemical wastewater purifying agent, which comprises the following steps:
s1, weighing the components according to the formula;
s2, mixing and stirring the weighed silica aerogel, graphene oxide, enzyme-bacterium mixture and zeolite powder uniformly, and dispersing the mixture in water by ultrasonic waves to obtain a mixed solution;
s3, connecting the solid hydrogel balls in series into bead strings by adopting carbon fibers, wherein each bead string comprises two solid hydrogel balls sinking into the water bottom and at least one solid hydrogel ball capable of floating on the water surface, and the mass of the solid hydrogel balls between the solid hydrogel balls sinking into the water bottom and the solid hydrogel balls capable of floating on the water surface is reduced in sequence;
s4, spraying the mixed solution on the surfaces of the solid hydrogel spheres and the carbon fibers, and naturally drying the coating to obtain the chemical wastewater purifying agent.
The invention has the following beneficial effects:
the method is characterized in that the high-water-absorptivity high-molecular resin in a certain form fully absorbs water and expands to form solid hydrogel balls and is a carbon fiber carrier, the wastewater treatment agent is prepared in a bead string mode, and each bead string at least comprises one solid hydrogel ball capable of floating on the water surface and two solid hydrogel balls sinking into the water bottom, so that the wastewater treatment agent can be fully contacted with wastewater, and the wastewater treatment efficiency is greatly improved.
Based on the compounding of silica aerogel, graphene oxide, zeolite powder, carbon fiber and enzyme bacteria, the wastewater treatment agent has strong adsorption performance, can realize quick and effective degradation of harmful substances, and has wide application range.
Drawings
FIG. 1 is a schematic structural diagram of a bead string according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in detail below with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following examples: the enzyme-bacterium mixture is prepared from carboxylesterase, bacillus subtilis and photosynthetic bacteria according to the mass ratio of 1: 2: 2, and mixing the components.
The solid hydrogel spheres are formed by fully absorbing water and expanding high-water-absorption polymer resin in a certain form, wherein a part of the solid hydrogel spheres can float on the water surface, a part of the solid hydrogel spheres can sink into the water bottom, and through holes for carbon fibers to pass through are formed in the solid hydrogel spheres.
Example 1
A preparation method of a chemical wastewater purifying agent comprises the following steps:
s1, weighing the following components in parts by weight: 5 parts of silicon dioxide aerogel, 2 parts of graphene oxide, 4 parts of zeolite powder, 1 part of carbon fiber, 1 part of solid hydrogel spheres and 5 parts of zymocyte mixing agent;
s2, mixing and stirring the weighed silica aerogel, graphene oxide, enzyme-bacterium mixture and zeolite powder uniformly, and dispersing the mixture in water by ultrasonic waves to obtain a mixed solution;
s3, connecting the solid hydrogel balls in series into bead strings by adopting carbon fibers, wherein each bead string comprises two solid hydrogel balls sinking into the water bottom and at least one solid hydrogel ball capable of floating on the water surface, and the mass of the solid hydrogel balls between the solid hydrogel balls sinking into the water bottom and the solid hydrogel balls capable of floating on the water surface is reduced in sequence;
s4, spraying the mixed solution on the surfaces of the solid hydrogel spheres and the carbon fibers, and naturally drying the coating to obtain the chemical wastewater purifying agent.
Example 2
A preparation method of a chemical wastewater purifying agent comprises the following steps:
s1, weighing the following components in parts by weight: 10 parts of silicon dioxide aerogel, 8 parts of graphene oxide, 10 parts of zeolite powder, 5 parts of carbon fiber, 20 parts of solid hydrogel spheres and 6 parts of zymocyte mixing agent;
s2, mixing and stirring the weighed silica aerogel, graphene oxide, enzyme-bacterium mixture and zeolite powder uniformly, and dispersing the mixture in water by ultrasonic waves to obtain a mixed solution;
s3, connecting the solid hydrogel balls in series into bead strings by adopting carbon fibers, wherein each bead string comprises two solid hydrogel balls sinking into the water bottom and at least one solid hydrogel ball capable of floating on the water surface, and the mass of the solid hydrogel balls between the solid hydrogel balls sinking into the water bottom and the solid hydrogel balls capable of floating on the water surface is reduced in sequence;
s4, spraying the mixed solution on the surfaces of the solid hydrogel spheres and the carbon fibers, and naturally drying the coating to obtain the chemical wastewater purifying agent.
Example 3
A preparation method of a chemical wastewater purifying agent comprises the following steps:
s1, weighing the following components in parts by weight: 7.5 parts of silicon dioxide aerogel, 5 parts of graphene oxide, 7 parts of zeolite powder, 3 parts of carbon fiber, 10.5 parts of solid hydrogel spheres and 5.5 parts of an enzyme-bacterium mixture;
s2, mixing and stirring the weighed silica aerogel, graphene oxide, enzyme-bacterium mixture and zeolite powder uniformly, and dispersing the mixture in water by ultrasonic waves to obtain a mixed solution;
s3, connecting the solid hydrogel balls in series into bead strings by adopting carbon fibers, wherein each bead string comprises two solid hydrogel balls sinking into the water bottom and at least one solid hydrogel ball capable of floating on the water surface, and the mass of the solid hydrogel balls between the solid hydrogel balls sinking into the water bottom and the solid hydrogel balls capable of floating on the water surface is reduced in sequence;
s4, spraying the mixed solution on the surfaces of the solid hydrogel spheres and the carbon fibers, and naturally drying the coating to obtain the chemical wastewater purifying agent.
The components are separately packaged and are ready for use.
And (3) performance testing:
chemical Oxygen Demand (COD): measured according to the dichromate method specified in the national standard GB 11914-89.
Ammonia nitrogen: the determination is carried out according to the Nashin reagent colorimetric method specified in the national standard GB 7479-87.
Suspended matters: measured according to the gravimetric method specified in the national standard GB 11901-89.
The chemical wastewater purifying agent obtained in the examples 1 to 3 is used for treating chemical wastewater, and then the chemical wastewater before and after treatment is subjected to sampling analysis test according to the method for testing COD, ammonia nitrogen and suspended matters in the performance test, and the results are as follows.
And (3) testing the purification time:
comparative example: weighing the following components in parts by weight: and 7.5 parts of silicon dioxide aerogel, 5 parts of graphene oxide, 7 parts of zeolite powder and 5.5 parts of an enzyme-bacterium mixture are uniformly mixed and stirred, and then granulation is carried out, thus obtaining the catalyst.
Experimental example: example 3.
The equivalent-index chemical wastewater is taken, the equivalent (calculated by the mass of silica aerogel, graphene oxide, zeolite powder and enzyme-bacterium mixture) comparative example and the wastewater treatment agent obtained in the embodiment 3 are arranged in the chemical wastewater, the COD, ammonia nitrogen and suspended matters in the wastewater are measured by sampling at regular time based on the performance test method, and the experimental result shows that the treatment speed of the COD, ammonia nitrogen and suspended matters in the experimental example is obviously higher than that in the comparative example, and the treatment effect is better than that in the comparative example.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (6)
1. The chemical wastewater purifying agent is characterized by being prepared by the following steps:
s1, weighing the following components in parts by weight: 5-10 parts of silicon dioxide aerogel, 2-8 parts of graphene oxide, 4-10 parts of zeolite powder, 1-5 parts of carbon fiber, 1-20 parts of solid hydrogel spheres and 5-6 parts of an enzyme-bacterium mixture;
s2, mixing and stirring the weighed silica aerogel, graphene oxide, enzyme-bacterium mixture and zeolite powder uniformly, and dispersing the mixture in water by ultrasonic waves to obtain a mixed solution;
s3, connecting the solid hydrogel balls in series into bead strings by adopting carbon fibers, wherein each bead string comprises two solid hydrogel balls sinking into the water bottom and at least one solid hydrogel ball capable of floating on the water surface, and the mass of the solid hydrogel balls between the solid hydrogel balls sinking into the water bottom and the solid hydrogel balls capable of floating on the water surface is reduced in sequence;
s4, spraying the mixed solution on the surfaces of the solid hydrogel spheres and the carbon fibers, and naturally drying the coating to obtain the chemical wastewater purifying agent.
2. The chemical wastewater purifying agent as claimed in claim 1, wherein the enzyme-bacterium mixture is prepared from carboxylesterase, bacillus subtilis and photosynthetic bacteria in a mass ratio of 1: 2: 2, and mixing the components.
3. The chemical wastewater purifying agent according to claim 1, wherein the solid hydrogel spheres are formed by fully absorbing water and swelling a certain form of high water-absorbent polymer resin, wherein a part of the solid hydrogel spheres can float on the water surface, and a part of the solid hydrogel spheres can sink to the water bottom.
4. The chemical wastewater purifying agent as claimed in claim 1, which is prepared from the following raw materials in parts by weight:
5 parts of silicon dioxide aerogel, 2 parts of graphene oxide, 4 parts of zeolite powder, 1 part of carbon fiber, 1 part of solid hydrogel spheres and 5 parts of zymocyte mixing agent.
5. The chemical wastewater purifying agent as claimed in claim 1, which is prepared from the following raw materials in parts by weight:
10 parts of silicon dioxide aerogel, 8 parts of graphene oxide, 10 parts of zeolite powder, 5 parts of carbon fiber, 20 parts of solid hydrogel spheres and 6 parts of zymocyte mixing agent.
6. The chemical wastewater purifying agent as claimed in claim 1, which is prepared from the following raw materials in parts by weight:
7.5 parts of silicon dioxide aerogel, 5 parts of graphene oxide, 7 parts of zeolite powder, 3 parts of carbon fiber, 10.5 parts of solid hydrogel spheres and 5.5 parts of an enzyme-bacterium mixture.
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| CN112011080A (en) * | 2020-09-02 | 2020-12-01 | 河北环境工程学院 | Hydrophilic polyurethane sponge for sewage treatment |
| CN113060790B (en) * | 2020-12-15 | 2022-09-09 | 广东蓝清环保工程有限公司 | Bidirectional sinking and floating type sewage suspended matter adsorption ball |
| CN113526804A (en) * | 2021-08-19 | 2021-10-22 | 榆林学院 | Heparin sodium wastewater treatment process |
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