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A kind of method of using silt and construction waste to prepare porous planting solidified soil

A technology of construction waste and solidified soil, which is applied in botany equipment and methods, planting substrates, applications, etc., can solve the problems of aggravating the difficulty of environmental governance and potential safety hazards, and achieve environmental protection, reduce processing costs, and good pressure resistance The effect of strength and vegetativeness

Active Publication Date: 2022-03-08
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This extensive method has serious safety hazards and increases the difficulty of environmental governance

Method used

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  • A kind of method of using silt and construction waste to prepare porous planting solidified soil

Examples

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Effect test

Embodiment 1

[0025] Take the Qinhuai River (Qiqiao Weng Ecological Wetland Park Section) mud pretreatment in Nanjing City, Jiangsu Province to remove large particles and dewater. After pretreatment, the water content of the mud is 55%, and then add the following parts by weight in the mud after per 1000 parts by weight of pretreatment Additives: 15 parts of metakaolin, 15 parts of slag powder, 10 parts of water glass, 20 parts of fertilizer (vermicompost, organic matter content 40%), 10 parts of humic acid, 20 parts of sulfonated oil, 15 parts of polyvinyl acetate, 15 parts of anionic polyacrylamide and 550 parts of water are mixed to obtain soil sludge, which is used as slope protection soil. The construction waste is crushed and sieved, and the bricks and concrete blocks are screened as aggregates. The aggregate particle size is 9.5-16 mm. figure 1 As shown in the basic structure, the bottom layer is base soil, the middle layer is brick particles and concrete, and the upper layer is soil...

Embodiment 2

[0028] Take the Qinhuai River (Qiqiao Weng Ecological Wetland Park Section) mud pretreatment in Nanjing City, Jiangsu Province, remove large particles and dewater, after pretreatment, the water content of the mud is 55%, and then add the following parts by weight in the mud after per 1000 parts by weight of pretreatment Additives: 10 parts of metakaolin, 10 parts of slag powder, 5 parts of water glass, 15 parts of fertilizer (vermicompost, organic matter content 40%), 10 parts of humic acid, 20 parts of sulfonated oil, 15 parts of polyvinyl acetate, anion 15 parts of polyacrylamide and 550 parts of water are mixed to obtain soil sludge, which is used as slope protection soil. The construction waste is crushed and sieved, and the bricks and concrete blocks are screened as aggregates. The aggregate particle size is 9.5-16 mm. figure 1 As shown in the basic structure, the bottom layer is base soil, the middle layer is brick particles and concrete, and the upper layer is soil silt...

Embodiment 3

[0031] Take the Qinhuai River (Qiqiao Weng Ecological Wetland Park Section) mud pretreatment in Nanjing City, Jiangsu Province, remove large particulate matter and dewater, the pretreatment mud water content is 55%, and then add the following weight parts additives in the mud after per 1000 weight parts pretreatment : 15 parts of metakaolin, 15 parts of slag powder, 10 parts of water glass, 20 parts of fertilizer (vermicompost, organic matter content 40%), 15 parts of humic acid, 25 parts of sulfonated oil, 20 parts of polyvinyl acetate, anionic poly 20 parts of acrylamide and 550 parts of water are mixed to obtain soil sludge, which is used as slope protection soil. The construction waste is crushed and sieved, and the bricks and concrete blocks are screened as aggregates. The particle size of the aggregates is 4.75-9.5 mm. figure 1 As shown in the basic structure, the bottom layer is base soil, the middle layer is brick particles and concrete, and the upper layer is soil sil...

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Abstract

The invention discloses a method for preparing porous planting solidified soil by using silt and construction waste, which comprises the steps of pretreating the sludge and then turning it into soil, and using it as slope protection soil, and using the construction waste as aggregate after pretreatment, and combining the two to make porous planting solidified soil build. The method of the present invention can not only utilize the silt as a resource, avoid a series of problems caused by dredging silt, bottom mud and industrial sludge, but also reduce the processing cost of construction waste through the resource utilization of construction waste, which is beneficial to the environment protection, and has engineering application prospects.

Description

technical field [0001] The invention belongs to the technical field of vegetation-solidified soil, and in particular relates to a method for preparing porous vegetation-solidified soil by utilizing silt and construction waste. Background technique [0002] The appearance of black and smelly rivers in cities and towns is to a certain extent caused by the direct discharge of industrial production and domestic wastewater into the rivers, which will lead to black and smelly water bodies and changes in their properties in the long run. During the long-term flow of the river, silt will be produced at the bottom of the river, and a large amount of pollutants will be deposited at the bottom of the polluted river, which will cause serious damage to the water body and lose its self-purification ability. A large amount of sedimentation of the bottom sediment leads to a large amount of high-load endogenous pollution in the river channel, causing non-negligible damage to the water qualit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G24/20A01G24/10A01G24/17A01G24/28A01G24/30
CPCA01G24/20A01G24/10A01G24/17A01G24/28A01G24/30
Inventor 祝建中徐迪陈靓宋林徐磊
Owner HOHAI UNIV
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