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Low-temperature pore-forming water storage type ceramsite prepared from solid waste and preparation method of ceramsite

A solid waste, low-temperature technology, applied in applications, ceramic products, clay products, etc., can solve the problems of water storage capacity to be improved, open porosity is not high, achieve important environmental and social benefits, good sound absorption effect, closed cells little effect

Active Publication Date: 2022-02-08
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems in the water storage type ceramsite prepared at present: the preparation process of ceramsite mostly adopts the method of high temperature pore formation, which limits the formation of pores to a certain extent, resulting in a large number of closed pores in the ceramsite, and the open porosity is not high. High, water storage capacity needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of low-temperature pore-forming and water-storing ceramsite, the main raw materials are municipal sludge and polluted soil, and the proportions are as follows in parts by mass: 60 parts of municipal sludge, 40 parts of polluted soil, and the total amount of municipal sludge and polluted soil is mixed externally. 10% by mass of straw, 2.5% of lepidolite tailings powder, 3% of borax, 0.5% of urea, and 0.5% of citric acid monohydrate.

[0038] The preparation method of the low-temperature pore-forming water storage type ceramsite specifically includes the following steps:

[0039] 1) Weighing raw materials according to the above formula, mixing municipal sludge, straw, lepidolite tailings powder, borax, urea and citric acid monohydrate to obtain a solid mixture;

[0040] 2) placing the solid mixture in an airtight environment, and carrying out airtight cultivation at 40° C. for two weeks to obtain a mixed culture material;

[0041] 3) After crushing the contaminate...

Embodiment 2

[0044] A kind of low-temperature pore-forming and water-storing ceramsite, the main raw materials are municipal sludge and polluted soil, and the proportions are as follows in parts by mass: 60 parts of municipal sludge, 40 parts of polluted soil, and the total amount of municipal sludge and polluted soil is mixed externally. 10% straw by mass, 2.5% lepidolite tailings powder, 3% borax, 0.5% urea and 0.5% citric acid monohydrate.

[0045] The preparation method of the low-temperature pore-forming water storage type ceramsite specifically includes the following steps:

[0046] 1) Weighing raw materials according to the above formula, mixing municipal sludge, straw, lepidolite tailings powder, borax, urea and citric acid monohydrate to obtain a solid mixture;

[0047] 2) Put the solid mixture in a closed environment, and carry out closed cultivation at 40° C. for two weeks to obtain the mixed culture material;

[0048] 3) After crushing the contaminated soil through a 200-mesh ...

Embodiment 3

[0051] A kind of low-temperature pore-forming and water-storing ceramsite, the main raw materials are municipal sludge and polluted soil, and the proportions are as follows in parts by mass: 60 parts of municipal sludge, 40 parts of polluted soil, and the total amount of municipal sludge and polluted soil is mixed externally. 10% straw by mass, 2.5% lepidolite tailings powder, 3% borax, 0.5% urea and 0.5% citric acid monohydrate.

[0052] The preparation method of the low-temperature pore-forming water storage type ceramsite specifically includes the following steps:

[0053] 1) Weighing raw materials according to the above formula, mixing municipal sludge, straw, lepidolite tailings powder, borax, urea and citric acid monohydrate to obtain a solid mixture;

[0054] 2) placing the solid mixture in an airtight environment, and carrying out airtight cultivation at 50° C. for two weeks to obtain a mixed culture material;

[0055] 3) After crushing the polluted soil through a 200...

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PUM

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Abstract

The invention provides a low-temperature pore-forming water storage type ceramsite prepared from solid waste and a preparation method of the ceramsite. The water storage type ceramsite comprises the following main raw materials: municipal sludge and polluted soil in a mass part ratio of (50-80):(20-50), the total of the municipal sludge and the polluted soil is 100. The water storage type ceramsite also comprises straw, lepidolite tailing powder, borax, urea and citric acid respectively with the addition amounts of 10-25%, 1-5%, 1-3%, 0-1% and 0-1% of the total mass of the municipal sludge and the polluted soil. The municipal sludge is taken as a raw material, solid wastes such as the municipal sludge, the polluted soil and the waste straws are fully utilized, and the prepared water storage material has excellent water absorption and relatively high strength and can be widely applied to the fields of energy conservation, water storage and storage and the like.

Description

technical field [0001] The invention belongs to the technical field of clay products using waste as a raw material for preparation of batch materials, and in particular relates to a low-temperature pore-forming and water-storage ceramsite prepared by using solid waste municipal sludge and a preparation method thereof. Background technique [0002] With the rapid development of building materials, people's awareness of environmental protection has increased, and their requirements for the living environment have also become higher and higher. Therefore, the application of industrial waste residues to building materials will bring huge social and environmental benefits to the society. [0003] With the development of industrialization and urbanization, more and more industrial wastewater and urban sewage are produced. After the wastewater is treated, it produces a heterogeneous body composed of organic debris, bacterial cells, inorganic particles, colloids, etc., that is, slud...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06C04B38/02C04B38/00C04B33/132C04B33/13
CPCC04B38/0675C04B38/009C04B38/00C04B38/025C04B33/1321C04B33/1325C04B33/132C04B33/1305C04B33/131C04B2235/96C04B38/0058Y02P40/60
Inventor 蹇守卫曹港豪谭洪波李相国李宝栋高欣魏博杨欣王威振成诚汪丹枫雷宇婷
Owner WUHAN UNIV OF TECH
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