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A kind of green polymer compound sludge curing agent and its application

A polymer compound and curing agent technology, applied in the direction of fixed/solidified sludge treatment, sludge treatment, chemical instruments and methods, etc., to achieve the effects of high efficiency, short curing time and low cost

Active Publication Date: 2021-12-07
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art, design and provide a green polymer compound sludge curing agent and its application, and solve the problem of harmless reuse of a large amount of sludge resources

Method used

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  • A kind of green polymer compound sludge curing agent and its application
  • A kind of green polymer compound sludge curing agent and its application
  • A kind of green polymer compound sludge curing agent and its application

Examples

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Embodiment 1

[0021] The green polymer compound sludge curing agent described in this embodiment is made of the following components in mass percentage: calcium oxide 9%, tricalcium silicate 6%, tricalcium aluminate 15%, halloysite nanofiber 16%, Diatomaceous earth 4%, calcium chloride 3%, calcified polyacid 6%, organosilicon 21%, sodium carboxymethyl cellulose 2%, sodium polyphosphate 18%.

Embodiment 2

[0023] The green polymer compound sludge curing agent described in this embodiment is made of the following components in mass percentage: calcium oxide 12%, tricalcium silicate 6%, tricalcium aluminate 12%, halloysite nanofiber 16% , Diatomaceous Earth 4%, Calcium Chloride 3%, Calcified Polyacid 6%, Silicone 21%, Sodium Carboxymethyl Cellulose 2%, Sodium Polyphosphate 18%.

Embodiment 3

[0025] The green polymer compound sludge solidifying agent described in this embodiment is made of the following components in mass percentage: calcium oxide 12%, tricalcium silicate 6%, tricalcium aluminate 12%, halloysite nanofiber 14% , 6% diatomaceous earth, 3% calcium chloride, 6% calcified polyacid, 21% organic silicon, 2% sodium carboxymethyl cellulose, 18% sodium polyphosphate.

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Abstract

The invention belongs to the technical field of building materials, and relates to a green polymer compound sludge curing agent and its application. The components in the sludge curing agent are as follows in terms of mass percentage: 30% of adhesive, 20% of auxiliary adhesive, water reducing 30% thickener and 20% thickener, prepared by mixing the components uniformly in proportion. When in use, add green polymer compound sludge solidifier with 1%-5% of the sludge mass to the sludge to be treated, mix and stir evenly , the treated sludge is directly transported to the muck field or directly backfilled to realize the green treatment and resource reuse of the sludge; a variety of high molecular polymers are used together with auxiliary adhesives, water reducers and thickeners, Under its interaction, the reaction rate between the curing agent and the sludge is fast, and the moisture content of the sludge after curing is close to the optimal moisture content. The mechanical properties are good and can meet the requirements of roadbed filling. The cost is low, the curing time is short, the efficiency is high, and the environment is friendly.

Description

Technical field: [0001] The invention belongs to the technical field of building materials, and relates to a green polymer compound sludge curing agent and its application. Background technique: [0002] With the gradual development of my country's economy, the protection of the environment and the conservation of resources have attracted much attention. For river management, channel dredging and building construction, the sludge that needs to be treated every year reaches hundreds of millions of cubic meters. The sludge has high moisture content, large porosity, high compressibility, and mechanical properties. Poor, can not be directly used in engineering, the traditional treatment method is mainly to discard, time cost and transportation cost are relatively large, and have adverse effects on the environment. Most of the current sludge curing agents are cement or fly ash, but the reaction takes a long time, the curing effect is not ideal, the environment is polluted, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/10C02F11/00
CPCC02F11/008C04B28/10C04B2111/00775C04B2201/50C04B22/08C04B14/4656C04B14/08C04B2103/302C04B2103/44
Inventor 顾琳琳龙蛟王振谢阿明
Owner NANJING UNIV OF SCI & TECH
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