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Method and system for modifying treatment of high-viscosity sea mud

A treatment method and high-viscosity technology, which is applied in sludge treatment, water/sludge/sewage treatment, fixed/solidified sludge treatment, etc. Large-scale resource processing and other issues to achieve high efficiency and avoid harm

Active Publication Date: 2020-01-14
NO 3 ENG COMPANY LTD OF CCCC FIRST HARBOR ENG COMPANY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing sludge treatment process is directly used for sea mud treatment, which has the following problems: the sea mud is highly viscous, it is not easy to disperse into small particles, and the large particle sea mud mass is not convenient for long-distance transportation, so it is difficult to realize a complete set of large-scale sea resource treatment

Method used

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  • Method and system for modifying treatment of high-viscosity sea mud
  • Method and system for modifying treatment of high-viscosity sea mud
  • Method and system for modifying treatment of high-viscosity sea mud

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The high-viscosity sea mud modification treatment method of the present invention comprises the following steps,

[0057] S1, add polyacrylamide with a volume of 0.2‰ of sea mud to the sea mud and disperse until the sea mud clumps with a diameter of less than 30 mm account for ≥90%. The function of the initial dispersion is to disperse the agglomerated sea mud mass and increase its fluidity.

[0058] S2, sieving the sea mud obtained in step S1. The function of sieving treatment is to sieve out large particles of mud or sundries, and improve the uniformity of subsequent mixing of materials. A total of two layers of sieve plates are used for sieving treatment. The first layer of sieve plate has a sieve diameter of 100mm, and the second layer of sieve plate has a sieve hole diameter of 30mm.

[0059] S3, adding polyacrylamide with a volume of 0.2‰ of sea mud to the sea mud obtained in step S2, and dispersing again, until the proportion of sea mud clumps with a diameter l...

Embodiment 2

[0068] The high-viscosity sea mud modification treatment method of the present invention comprises the following steps,

[0069] S1, add polyacrylamide with a volume of 0.3‰ of sea mud to the sea mud and disperse until the sea mud balls with a diameter of less than 30 mm account for ≥90%. The function of the initial dispersion is to disperse the agglomerated sea mud mass and increase its fluidity.

[0070] S2, sieving the sea mud obtained in step S1. A total of two layers of sieve plates are used for sieving treatment. The first layer of sieve plate has a sieve diameter of 100mm, and the second layer of sieve plate has a sieve hole diameter of 30mm.

[0071] S3, adding a polycarboxylate superplasticizer with a sea mud volume of 0.3‰ to the sea mud obtained in step S2, and redispersing until the sea mud clumps with a diameter of less than 5 mm account for ≥95%. The function of redispersing is to disperse the agglomerated sea mud mass and increase its fluidity.

[0072] S4, a...

Embodiment 3

[0080] The high-viscosity sea mud modification treatment method of the present invention comprises the following steps,

[0081] S1, add polyacrylamide with a volume of 0.4‰ of sea mud to the sea mud, and disperse until the sea mud clumps with a diameter of less than 30 mm account for ≥90%. The function of the initial dispersion is to disperse the agglomerated sea mud mass and increase its fluidity.

[0082] S2, sieving the sea mud obtained in step S1. A total of two layers of sieve plates are used for sieving treatment. The first layer of sieve plate has a sieve diameter of 100mm, and the second layer of sieve plate has a sieve hole diameter of 30mm.

[0083] S3, adding sodium hexametaphosphate with a volume of 0.3‰ of sea mud to the sea mud obtained in step S2, and dispersing again until the sea mud clumps with a diameter of less than 5mm account for ≥95%. The function of redispersing is to disperse the agglomerated sea mud mass and increase its fluidity.

[0084] S4, add...

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Abstract

The invention provides a method and system for modifying treatment of high-viscosity sea mud. The viscosity of the sea mud can be reduced through three times of dispersion, ultra-long-distance landfill of a solidified substance is further performed through a pumping device, and the method and system are suitable for construction of large-scale sea mud solidification projects; the sea mud is converted through addition of a curing agent into the solidified substance which is similar to soil and has high cementing strength and no secondary environmental pollution, so that harmless treatment of the sea mud is achieved; the sea mud is highly dispersed into a dispersion with low-viscosity or good rheological properties through addition of a conditioning agent, and meanwhile since an adsorption electric double layer can be formed uniformly on the surface of the material through a dispersant, the tendency of secondary flocculation and agglomeration of sea mud particles is reduced greatly, so that the stability of the dispersion is improved, and the pumping capacity of the solidified sea mud is also improved at the same time; and according to the system for modifying treatment of the high-viscosity sea mud, transportation is carried out through containers, the system has continuous operation, high efficiency and adaptability to on-site treatment, and harm to the environment can be avoided.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to a high-viscosity sea mud modification treatment method and system. Background technique [0002] In recent years, with the development of my country's economic construction, a large amount of sea mud is produced every year in the construction of coastal marine engineering. On the one hand, sea mud will cause pollutants to spread and damage the water environment on the land. A large amount of earthwork is required, which will cause irreparable damage to the ecological environment. Therefore, the contradiction between such demand and pollution and damage to the environment has become increasingly prominent. Therefore, it is necessary to process the sea mud so that the sea mud can be utilized as a resource. [0003] Sea mud is deposited in still water or slow flowing water environment, formed by physical, chemical and biochemical actions, unconsolidated soft fine-grained o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C02F11/00
CPCC02F11/00C02F11/008C04B28/143C04B7/00C04B18/146C04B18/142C04B18/0409C04B18/0418
Inventor 张沛强项国玉陈益人张振伟傅磊王向宇徐民主于凌波肖桂华毕荣君甘虎崔旭生
Owner NO 3 ENG COMPANY LTD OF CCCC FIRST HARBOR ENG COMPANY
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