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Preparation method of sludge-based artificial soil granules

A technology of artificial soil and silt, applied in botany equipment and methods, culture medium, cement production, etc., can solve the problem that silt cannot be recycled in a green way, achieve simple and convenient preparation methods, reduce recycling pressure, and high-efficiency recycling Effect of treatment

Inactive Publication Date: 2021-01-05
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of this application is to provide a method for preparing silt-based artificial soil particles, aiming to solve the problem that silt cannot be recycled greenly in the prior art

Method used

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  • Preparation method of sludge-based artificial soil granules
  • Preparation method of sludge-based artificial soil granules
  • Preparation method of sludge-based artificial soil granules

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preparation example Construction

[0020] The first aspect of the embodiment of the present application provides a method for preparing silt-based artificial soil particles, comprising the following steps:

[0021] S01. Provide sludge, inorganic gelling materials, plant growth nutrients, foaming agents and additives, wherein the weight of sludge is dry weight, and the number of parts of sludge, inorganic gelling materials, plant growth nutrients, foaming agents and additives The ratio is (80~90):(5~15):(2~5):(0.5~1):(0.5~1);

[0022] S02. Mixing the sludge, inorganic gelling material, plant growth nutrients, foaming agent and additives to obtain a first mixture;

[0023] S03. Granulating the first mixture and water to obtain silt-based artificial soil particles.

[0024] The preparation method of silt-based artificial soil particles uses silt as a raw material, and carries out mixing treatment by adding inorganic gelling materials, plant growth nutrients, foaming agents and additives. During the mixing process...

Embodiment 1

[0061] A kind of preparation method of artificial soil particle based on silt

[0062] The preparation method comprises the following steps:

[0063] (1) Provide silt, inorganic gelling materials, plant growth nutrients, foaming agents and additives, wherein the number of added parts of silt is 80 parts, the number of added parts of inorganic gelling materials is 15 parts, and the number of parts of plant growth nutrients The number of additions is 2 parts, the number of additions of foaming agent is 0.7 parts and the number of additions of additives is 0.8 parts, the number of additions of water is 73 parts, and the weight of sludge is dry weight;

[0064] Among them, the silt is selected from the silt in Guangdong area; the inorganic cementitious material is selected from geopolymer cement; plant growth nutrients are introduced into the raw material system by adding decayed leaves; the foaming agent is selected from XK animal protein concrete foaming agent, twelve A combina...

Embodiment 2

[0070] A kind of preparation method of artificial soil particle based on silt

[0071] The preparation method comprises the following steps:

[0072] (1) Provide silt, inorganic gelling materials, plant growth nutrients, foaming agents and additives, wherein the number of added parts of silt is 85 parts, the number of added parts of inorganic gelling materials is 10 parts, and the number of parts of plant growth nutrients The number of additions is 2 parts, the number of additions of foaming agent is 0.7 parts and the number of additions of additives is 0.8 parts, the number of additions of water is 78 parts, and the weight of sludge is dry weight;

[0073] Among them, the silt is selected from the silt in Guangdong area; the inorganic cementitious material is selected from geopolymer cement; plant growth nutrients are introduced into the raw material system by adding fallen leaves; the foaming agent is selected from sodium dodecyl sulfate (SDS) and dodecyl sulfate. The combi...

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Abstract

The invention relates to the technical field of solid waste comprehensive utilization, and provides a preparation method of sludge-based artificial soil granules. The preparation method comprises thefollowing steps that sludge, an inorganic cementing material, plant growth nutrients, a foaming agent and an additive are provided; the sludge, the inorganic cementing material, the plant growth nutrients, the foaming agent and the additive are mixed, and a first mixture is obtained; and granulation treatment is carried out on the first mixture and water to obtain the sludge-based artificial soilgranules. According to the method, the sludge is used as a main component, the inorganic cementing material is used for bonding and solidifying harmful components, it is guaranteed that the artificialsoil granules have enough mechanical strength and internal pore structures, properties are excellent, the method can be used for cultivating plants, high-efficiency recovery treatment and cleaning ofashore sludge are achieved by the method, stacking space and recovery treatment pressure of the sludge are greatly reduced, large-volume recycling of the sludge is achieved, and secondary pollution generated by the sludge is effectively avoided.

Description

technical field [0001] The application belongs to the technical field of comprehensive utilization of solid waste, and in particular relates to a preparation method of silt-based artificial soil particles. Background technique [0002] With the development of social economy and the accumulation of urban population, various industrial and domestic garbage sediments are accumulated in the river, forming silt, and urban flood control, drainage, irrigation, water supply, navigation and other functions will be seriously affected. In order to restore the normal function of the river, the government will carry out regular dredging works on the river to restore the original depth and width of the river and improve the water quality of the river. However, if the silt and sludge in the cleaned river course are not recycled and reused, it will cause secondary pollution to the environment. For the silt and sludge cleaned up, the traditional treatment method is to transport them to a de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/12A01G24/10A01G24/20A01G24/22A01G24/30A01G24/42C04B28/00C04B40/02
CPCA01G24/12A01G24/10A01G24/22A01G24/30A01G24/20A01G24/42C04B28/006C04B2111/00758Y02P40/10
Inventor 董必钦王琰帅洪舒贤邢锋张津瑞侯东帅
Owner SHENZHEN UNIV