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Sludge treatment agent and preparation method thereof

A technology for sludge treatment and additives, which is applied in the fields of sludge treatment, water/sludge/sewage treatment, dewatering/drying/concentrated sludge treatment, etc. The effect needs to be improved, etc.

Active Publication Date: 2019-01-11
JILIN JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Residual sludge contains a large amount of organic matter, heavy metal ions, bacteria, viruses and other environmental pollutants. If not handled properly, it will cause serious pollution to the environment during storage and transportation, and even endanger human health.
[0003] At present, the commonly used sludge treatment method is to use sludge treatment agent to treat the remaining sludge, but the treatment effect of the existing sludge treatment agent still needs to be improved

Method used

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  • Sludge treatment agent and preparation method thereof

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preparation example Construction

[0044] The present invention provides the preparation method of the sludge treatment agent described in the above technical scheme, comprising the following steps:

[0045] The sludge treatment agent is obtained by mixing polyacrylamide, zeolite powder, bentonite, talcum powder, carbon fiber and additives.

[0046] In the present invention, there is no special limitation on the mixing method of the components in the sludge treatment agent, as long as the components are uniformly mixed according to the above-mentioned parts by mass.

[0047] In the present invention, the method of using the sludge treatment agent to treat the sludge to be treated is not particularly limited, and a method well known to those skilled in the art can be used. The present invention has no special limitation on the type of the sludge to be treated, specifically, it may be the excess sludge formed during the treatment of industrial wastewater or urban domestic sewage. In the present invention, in the...

Embodiment 1

[0050] In terms of parts by mass, the formula of the sludge treatment agent includes:

[0051] 20 parts of polyacrylamide;

[0052] 20 parts of zeolite powder, the particle size is 150-300 mesh;

[0053] 15 parts of sodium bentonite, the particle size is 150-250 mesh;

[0054] 10 parts of talcum powder, the particle size is 200-500 mesh;

[0055] 3 parts of carbon fiber, the length is 30-50 μm;

[0056] 4 parts of auxiliary agents, comprising sodium benzylnaphthalenesulfonate formaldehyde condensate, sodium carboxymethylcellulose and citric acid, the mass ratio of said benzylnaphthalenesulfonate formaldehyde condensation product, sodium carboxymethylcellulose and citric acid is 3:1.5:1.5.

Embodiment 2

[0058] In terms of parts by mass, the formula of the sludge treatment agent includes:

[0059] 15 parts of polyacrylamide;

[0060] 25 parts of zeolite powder, the particle size is 150-300 mesh;

[0061] 10 parts of sodium bentonite, the particle size is 150-250 mesh;

[0062] 15 parts of talcum powder, the particle size is 200-500 mesh;

[0063] 5 parts of carbon fiber, the length is 30-50 μm;

[0064] 2 parts of auxiliary agents, comprising sodium benzylnaphthalenesulfonate formaldehyde condensate, sodium carboxymethylcellulose and citric acid, the mass ratio of said benzylnaphthalenesulfonate formaldehyde condensation product, sodium carboxymethylcellulose and citric acid is 2:1.5:2.

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Abstract

The invention relates to the technical field of sludge treatment and particularly relates to a sludge treatment agent and a preparation method thereof. Polyacrylamide has excellent flocculation and thickening effects. Zeolite powder, bentonite and talc powder have an excellent adsorption capacity. The zeolite powder can produce a good synergistic effect with polyacrylamide, bentonite and talc powder so that the affinity of the sludge to be treated to oil, phosphate, heavy metal ions, etc. is damaged so that ideal treatment effects are obtained. Carbon fibers are evenly dispersed in the sludgeduring the sludge treatment process so that a certain bearing capacity is obtained, the sludge bulkiness is kept, the sludge fully contacts with other components in a sludge treatment agent, the mainmaterials can well realize flocculation, thickening and adsorption and the treatment effects are improved. The treated sludge can be well accumulated together so that the mud cake is compact and is easy to stack, transport or deep treat in the later stage.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a sludge treatment agent and a preparation method thereof. Background technique [0002] With the development of industrialization and the increase of urban population, the discharge of industrial wastewater and urban domestic sewage is increasing, and the resulting surplus sludge is also gradually increasing. Surplus sludge contains a large amount of organic matter, heavy metal ions, bacteria, viruses and other environmental pollutants. If it is not handled properly, it will cause serious pollution to the environment during storage and transportation, and even endanger human health. [0003] At present, the commonly used sludge treatment method is to use sludge treatment agent to treat the remaining sludge, but the treatment effect of the existing sludge treatment agent still needs to be improved. Contents of the invention [0004] The object of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/148
CPCC02F11/00C02F11/14
Inventor 陆海张小雨王晓玲林英姿李科
Owner JILIN JIANZHU UNIVERSITY