CN109179933B - Sludge treatment agent and preparation method thereof - Google Patents
Sludge treatment agent and preparation method thereof Download PDFInfo
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- CN109179933B CN109179933B CN201811282403.4A CN201811282403A CN109179933B CN 109179933 B CN109179933 B CN 109179933B CN 201811282403 A CN201811282403 A CN 201811282403A CN 109179933 B CN109179933 B CN 109179933B
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- sludge
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- bentonite
- sludge treatment
- treatment agent
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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
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
Abstract
The invention relates to the technical field of sludge treatment, in particular to a sludge treatment agent and a preparation method thereof. The polyacrylamide has excellent flocculation and thickening effects, the zeolite powder, the bentonite and the talcum powder have excellent adsorption capacity, and in addition, the zeolite powder can form a good synergistic effect with the polyacrylamide, the bentonite and the talcum powder, so that the affinity of the sludge to be treated for moisture, oil, phosphate radicals, heavy metal ions and the like is destroyed, and an ideal treatment effect is achieved. The carbon fibers are uniformly dispersed in the sludge treatment process, so that a certain bearing capacity can be provided, the sludge keeps a certain fluffiness, the sludge is ensured to be more fully contacted with other components in the sludge treatment agent, the main body material is assisted to better realize flocculation, thickening and adsorption effects, and the treatment effect is improved; meanwhile, the treated sludge can be better accumulated together, so that the obtained sludge cake is more compact and is convenient to stack, transport or carry out subsequent advanced treatment.
Description
Technical Field
The invention relates to the technical field of sludge treatment, in particular to a sludge treatment agent and a preparation method thereof.
Background
With the development of industrialization and the increase of urban population, the discharge amount of industrial wastewater and urban domestic sewage is increasing, and the generated excess sludge is also increasing. The residual sludge contains a large amount of organic matters, heavy metal ions, bacteria, viruses and other environmental pollutants, and if the residual sludge is not treated well, the environmental pollutants can cause serious pollution to the environment in the processes of stockpiling, transportation and the like, and even harm to human health.
The existing common sludge treatment method adopts a sludge treatment agent to treat excess sludge, but the treatment effect of the existing sludge treatment agent is still to be improved.
Disclosure of Invention
The invention aims to provide a sludge treatment agent and a preparation method thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a sludge treatment agent which comprises the following components in parts by mass:
15-25 parts of polyacrylamide;
15-30 parts of zeolite powder;
10-20 parts of bentonite;
5-15 parts of talcum powder;
2-5 parts of carbon fiber;
and 1-5 parts of an auxiliary agent.
Preferably, the sludge treatment agent comprises the following components in parts by mass:
18-22 parts of polyacrylamide;
20-25 parts of zeolite powder;
13-17 parts of bentonite;
8-12 parts of talcum powder;
3-4 parts of carbon fiber;
and 2-4 parts of an auxiliary agent.
Preferably, the particle size of the zeolite powder is 150-300 meshes.
Preferably, the bentonite is sodium bentonite.
Preferably, the particle size of the bentonite is 150-250 meshes.
Preferably, the particle size of the talcum powder is 200-500 meshes.
Preferably, the length of the carbon fiber is 30 to 50 μm.
Preferably, the auxiliaries include sodium benzylnaphthalenesulfonate formaldehyde condensate, sodium carboxymethylcellulose, and citric acid.
Preferably, the mass ratio of the benzyl naphthalene sulfonic acid formaldehyde condensate to the sodium carboxymethyl cellulose to the citric acid is (2-4): (0.5-2.5): (1-2).
The invention provides a preparation method of the sludge treatment agent in the technical scheme, which comprises the following steps:
mixing polyacrylamide, zeolite powder, bentonite, talcum powder, carbon fiber and an auxiliary agent to obtain the sludge treating agent.
The invention provides a sludge treatment agent which comprises the following components in parts by mass: 15-25 parts of polyacrylamide; 15-30 parts of zeolite powder; 10-20 parts of bentonite; 5-15 parts of talcum powder; 2-5 parts of carbon fiber; and 1-5 parts of an auxiliary agent. In the sludge treating agent provided by the invention, the polyacrylamide, the zeolite powder, the bentonite and the talcum powder are used as main materials, wherein the polyacrylamide has excellent flocculation and thickening effects, and the zeolite powder, the bentonite and the talcum powder have excellent adsorption capacity; meanwhile, within the range of the mixture ratio, the materials can be ensured to fully play corresponding roles. The carbon fibers are used as reinforcing materials, have good stability and high strength, are uniformly dispersed in the sludge treatment process, can provide certain bearing capacity, and ensure that the sludge keeps certain fluffiness, so that the sludge is ensured to be more fully contacted with other components in the sludge treatment agent, the main body material is assisted to better realize flocculation, thickening and adsorption effects, and the treatment effect is improved; meanwhile, the treated sludge can be better accumulated together, so that the obtained sludge cake is more compact and is convenient to stack, transport or carry out subsequent advanced treatment.
Detailed Description
The invention provides a sludge treatment agent which comprises the following components in parts by mass:
15-25 parts of polyacrylamide;
15-30 parts of zeolite powder;
10-20 parts of bentonite;
5-15 parts of talcum powder;
2-5 parts of carbon fiber;
and 1-5 parts of an auxiliary agent.
The sludge treatment agent comprises, by mass, 15-25 parts of polyacrylamide, and preferably 18-22 parts of polyacrylamide.
Based on the mass portion of the polyacrylamide, the sludge treatment agent provided by the invention comprises 15-30 parts of zeolite powder, preferably 20-25 parts. In the invention, the granularity of the zeolite powder is preferably 150-300 meshes.
Based on the mass portion of the polyacrylamide, the sludge treatment agent provided by the invention comprises 10-20 parts of bentonite, and preferably 13-17 parts of bentonite. In the present invention, the bentonite is preferably sodium bentonite; the particle size of the bentonite is preferably 150-250 meshes.
Based on the mass portion of the polyacrylamide, the sludge treatment agent provided by the invention comprises 5-15 parts of talcum powder, and preferably 8-12 parts of talcum powder. In the invention, the particle size of the talcum powder is preferably 200-500 meshes.
In the invention, the polyacrylamide, the zeolite powder, the bentonite and the talcum powder are used as main materials of the sludge treatment agent, wherein the polyacrylamide has excellent flocculation and thickening effects, the zeolite powder, the bentonite and the talcum powder have excellent adsorption capacity, in addition, the zeolite powder has good stability and can form good synergistic effect with the polyacrylamide, the bentonite and the talcum powder, the affinity of the sludge to be treated to moisture, oil, phosphate radical, heavy metal ions and the like is destroyed, and an ideal treatment effect is achieved; meanwhile, within the range of the mixture ratio, the materials can be ensured to fully play corresponding roles.
Based on the mass portion of the polyacrylamide, the sludge treatment agent provided by the invention comprises 2-5 parts of carbon fiber, and preferably 3-4 parts. In the present invention, the length of the carbon fiber is preferably 30 to 50 μm. In the invention, the carbon fibers are used as reinforcing materials, have good stability and high strength, are uniformly dispersed in sludge in the sludge treatment process, can provide certain bearing capacity, and ensure that the sludge keeps certain fluffiness, so that the sludge is ensured to be more fully contacted with other components in the sludge treatment agent, flocculation, thickening and adsorption effects are better realized by assisting the main body material, and the treatment effect is improved; meanwhile, the treated sludge can be better accumulated together, so that the obtained sludge cake is more compact and is convenient to stack, transport or carry out subsequent advanced treatment.
Based on the mass portion of the polyacrylamide, the sludge treatment agent provided by the invention comprises 1-5 parts of an auxiliary agent, preferably 2-4 parts. In the invention, the auxiliary agent preferably comprises a sodium benzylnaphthalenesulfonate formaldehyde condensate, sodium carboxymethylcellulose and citric acid, and the mass ratio of the sodium benzylnaphthalenesulfonate formaldehyde condensate to the sodium carboxymethylcellulose to the citric acid is preferably (2-4): (0.5-2.5): 1-2, and more preferably (2.5-3.5): 1-2): 1.3-1.7. In the invention, the auxiliary agent can provide a proper environment for each component in the sludge treatment agent, and ensures that each component can fully exert respective function.
The invention provides a preparation method of the sludge treatment agent in the technical scheme, which comprises the following steps:
mixing polyacrylamide, zeolite powder, bentonite, talcum powder, carbon fiber and an auxiliary agent to obtain the sludge treating agent.
The mixing mode of the components in the sludge treatment agent is not particularly limited, and the components are uniformly mixed according to the mass parts.
In the present invention, the method for treating the sludge to be treated with the sludge treatment agent is not particularly limited, and a method known to those skilled in the art may be used. The type of the sludge to be treated is not particularly limited, and the sludge to be treated can be specifically excess sludge formed in the treatment process of industrial wastewater or municipal domestic sewage. In the invention, in the process of treating the sludge to be treated by adopting the sludge treating agent, the using amount of the sludge treating agent is preferably determined according to actual needs, and specifically, the sludge treating agent preferably accounts for 5-15 wt% of the sludge to be treated, and more preferably 8-10 wt%; i.e., 50 to 150. mu.g/g, more preferably 80 to 100. mu.g/g.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The formula of the sludge treatment agent comprises the following components in parts by weight:
20 parts of polyacrylamide;
20 parts of zeolite powder with the granularity of 150-300 meshes;
15 parts of sodium bentonite, wherein the granularity is 150-250 meshes;
10 parts of talcum powder with the granularity of 200-500 meshes;
3 parts of carbon fibers, wherein the length of the carbon fibers is 30-50 mu m;
4 parts of an auxiliary agent, including a sodium benzylnaphthalenesulfonate formaldehyde condensate, sodium carboxymethylcellulose and citric acid, wherein the mass ratio of the sodium benzylnaphthalenesulfonate formaldehyde condensate to the sodium carboxymethylcellulose to the citric acid is 3: 1.5.
Example 2
The formula of the sludge treatment agent comprises the following components in parts by weight:
15 parts of polyacrylamide;
25 parts of zeolite powder with the granularity of 150-300 meshes;
10 parts of sodium bentonite, wherein the granularity is 150-250 meshes;
15 parts of talcum powder with the granularity of 200-500 meshes;
5 parts of carbon fiber, the length of which is 30-50 mu m;
and 2 parts of an auxiliary agent, which comprises a sodium benzylnaphthalenesulfonate formaldehyde condensate, sodium carboxymethylcellulose and citric acid, wherein the mass ratio of the sodium benzylnaphthalenesulfonate formaldehyde condensate to the sodium carboxymethylcellulose to the citric acid is 2: 1.5: 2.
Example 3
The formula of the sludge treatment agent comprises the following components in parts by weight:
25 parts of polyacrylamide;
15 parts of zeolite powder with the granularity of 150-300 meshes;
20 parts of sodium bentonite, wherein the granularity is 150-250 meshes;
5 parts of talcum powder with the granularity of 200-500 meshes;
2 parts of carbon fiber, the length of which is 30-50 mu m;
and 1 part of an auxiliary agent, which comprises a sodium benzylnaphthalenesulfonate formaldehyde condensate, sodium carboxymethylcellulose and citric acid, wherein the mass ratio of the sodium benzylnaphthalenesulfonate formaldehyde condensate to the sodium carboxymethylcellulose to the citric acid is 4: 2.5: 1.
Comparative example 1
A sludge treatment agent was provided according to the formulation of example 1, except that zeolite powder was not included.
Comparative example 2
A sludge treatment agent was provided in accordance with the formulation of example 1, except that carbon fibers were not incorporated.
Treating sludge to be treated by using the sludge treating agents provided by the examples 1-3 and the comparative examples 1-2, wherein the adding amount of the sludge treating agent is 10 wt% (100 mug/g); the water content in the sludge to be treated is 95 percent; the oil content in the filtered liquid is 3283mg/L, the phosphate radical content is 3032mg/L, and the heavy metal content is 5632 mg/L. The specific treatment results are shown in Table 1.
Table 1 treatment results of sludge to be treated with the sludge treatment agents provided in examples 1 to 3 and comparative examples 1 to 2
As can be seen from Table 1, compared with the sludge treatment agents of comparative example 1 and comparative example 2 which do not contain zeolite powder and carbon fiber, the sludge treatment agent provided by the invention has excellent treatment effect, wide raw material sources and is beneficial to popularization and use in practical production.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A sludge treatment agent comprises the following components in parts by mass:
15-25 parts of polyacrylamide;
15-30 parts of zeolite powder; the particle size of the zeolite powder is 150-300 meshes;
10-20 parts of bentonite; the bentonite is sodium bentonite, and the particle size of the bentonite is 150-250 meshes;
5-15 parts of talcum powder; the particle size of the talcum powder is 200-500 meshes;
2-5 parts of carbon fiber; the length of the carbon fiber is 30-50 mu m;
1-5 parts of an auxiliary agent, wherein the auxiliary agent is a sodium benzylnaphthalenesulfonate formaldehyde condensate, sodium carboxymethylcellulose and citric acid, and the mass ratio of the sodium benzylnaphthalenesulfonate formaldehyde condensate to the sodium carboxymethylcellulose to the citric acid is (2-4) to (0.5-2.5) to (1-2).
2. The sludge treatment agent according to claim 1, wherein the sludge treatment agent comprises the following components in parts by mass:
18-22 parts of polyacrylamide;
20-25 parts of zeolite powder;
13-17 parts of bentonite;
8-12 parts of talcum powder;
3-4 parts of carbon fiber;
and 2-4 parts of an auxiliary agent.
3. The method for producing the sludge treatment agent according to any one of claims 1 to 2, comprising the steps of:
mixing polyacrylamide, zeolite powder, bentonite, talcum powder, carbon fiber and an auxiliary agent to obtain the sludge treating agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811282403.4A CN109179933B (en) | 2018-10-31 | 2018-10-31 | Sludge treatment agent and preparation method thereof |
Applications Claiming Priority (1)
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| CN201811282403.4A CN109179933B (en) | 2018-10-31 | 2018-10-31 | Sludge treatment agent and preparation method thereof |
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| CN109179933A CN109179933A (en) | 2019-01-11 |
| CN109179933B true CN109179933B (en) | 2021-06-25 |
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| CN110354825A (en) * | 2019-07-12 | 2019-10-22 | 吉林建筑大学 | A kind of adsorbent for electroplating wastewater adsorption treatment |
| CN110330120A (en) * | 2019-08-15 | 2019-10-15 | 杭州珊瑚环境科技有限公司 | A kind of ecological restoring method of black-odor riverway |
| CN114177895A (en) * | 2021-12-07 | 2022-03-15 | 中建三局绿色产业投资有限公司 | Adsorbent for domestic sewage treatment and preparation method thereof |
| CN115286213B (en) * | 2022-09-01 | 2024-04-16 | 中海石油环保服务（天津）有限公司 | Water-meeting fluffy porous material for treating sludge biological pile |
| CN115536298A (en) * | 2022-10-20 | 2022-12-30 | 中煤能源研究院有限责任公司 | Coal mine slurry filling suspending agent and preparation method thereof |
Citations (2)
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| CN106673402A (en) * | 2016-12-30 | 2017-05-17 | 郑州掌盟网络科技有限公司 | Efficient sludge treatment agent and preparation method thereof |
| CN107417060A (en) * | 2017-08-28 | 2017-12-01 | 湖南奇思环保有限公司 | A kind of curing agent and its synthetic method and application |
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| CN102126823B (en) * | 2011-01-28 | 2012-07-18 | 湖州旺能环保科技有限公司 | Sludge dewatering process combining physical and chemical methods |
| CN106116077A (en) * | 2016-08-22 | 2016-11-16 | 陈永桥 | A kind of for alum sludge conditioner |
| CN106630512A (en) * | 2016-12-14 | 2017-05-10 | 桐乡市搏腾贸易有限公司 | Oily sludge treatment agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106673402A (en) * | 2016-12-30 | 2017-05-17 | 郑州掌盟网络科技有限公司 | Efficient sludge treatment agent and preparation method thereof |
| CN107417060A (en) * | 2017-08-28 | 2017-12-01 | 湖南奇思环保有限公司 | A kind of curing agent and its synthetic method and application |
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