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Method for synthesizing artificial soil from sediment

A technology of artificial soil and sediment, which is applied in the field of solid waste resource utilization, can solve the problems of small amount of matrix products, poor stability of matrix products, breeding secondary seedlings and dwarf seedlings, etc., so as to improve soil properties and maintain pH. , to solve the effect of consumption

Inactive Publication Date: 2016-06-01
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Before the present invention is made, there are currently agricultural products such as matrix that can consume part of the bottom mud, but the amount of the matrix product itself is not large, the consumption of the bottom mud is very small, and the stability of the matrix product is relatively poor. In the production process, The batches of raw materials, production seasons and production in different regions will have a great impact on matrix products
Substrate products with the same formula may have excellent seedling raising effect in one place, but in another place, it is possible to produce inferior seedlings, short seedlings, or even dead seedlings, which will also be unfavorable to the growth after transplanting influences

Method used

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  • Method for synthesizing artificial soil from sediment
  • Method for synthesizing artificial soil from sediment
  • Method for synthesizing artificial soil from sediment

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preparation example Construction

[0035] The preparation method of above-mentioned artificial soil, comprises the steps:

[0036] (1) Mix the bottom mud and vermicompost according to the formula, squeeze and knead vigorously, and mix evenly;

[0037] (2) Add a formula amount of straw source carbon regulator and pH regulator to the mixture obtained in step (1). -9. The C / N ratio is controlled between 25-32, and the piles are turned over in a timely manner to ensure sufficient oxygen for fermentation, and the fermentation days are more than 30 days;

[0038] (3) In the mixture obtained in step (2), the buffering agent and the trace element chelate are mixed, and mixed uniformly, and the aging is stable for more than 30 days;

[0039] (4) Make the moisture content of the mixture reach between 20-40%, and aggregates begin to form, forming an artificial soil similar in physical, chemical and biological properties to mature soil.

[0040] Furthermore, the particle size composition of the artificial soil is made wi...

Embodiment 1

[0042] The weight percentage of bottom mud is 90%, and the weight percentage of vermicompost is 10%. Add 200g of straw source carbon regulator, 0.05g of pH regulator, 0.80g of buffering agent, and a small amount of Elemental chelate is 20g.

Embodiment 2

[0044] The weight percentage of bottom mud is 95%, and the weight percentage of vermicompost is 5%. Add 1000g of straw source carbon regulator, 200g of pH regulator, 250g of buffering agent, and 250g of trace element chelate into one ton of the mixture of the above two substances. Compound is 50g.

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Abstract

The invention relates to a method for synthesizing artificial soil from sediment. The soil comprises sediment, wormcast, a straw carbon source regulator, a pH regulator, a buffering agent and a microelement chelate, wherein the weight percentage of the sediment is 85%-95%, the weight percentage of the wormcast is 5%-15%, and 0.01-2,000 g of the straw carbon source regulator, 0.01-1,000 g of the pH regulator, 0.01-1,000 g of the buffering agent and 0.01-500 g of the microelement chelate are added to one ton of a mixture of the two substances. The method overcomes the defect of poorer stability of substrate products. The artificial soil produced from the sediment can effectively overcome bottlenecks of unstable substrate property, low plant safety and high environmental pollution risk, through raw material proportioning and fermentation, the application effect of the artificial soil is always kept excellent, and the artificial soil has the volume weight similar to that of mature soil, and can better fix root systems of plants, increase water-retention and air permeability and well coordinate environmental factors such as water, fertilizer, air, heat and the like required in the plant growth process.

Description

technical field [0001] The invention belongs to the field of resource utilization of solid waste, in particular to a method for synthesizing artificial soil based on sediment. Background technique [0002] Sediment is a kind of water body sediment, which is the main host of water body nutrients. In recent years, with the development of my country's economy and society and the increase of population, a large amount of industrial wastewater, domestic sewage and agricultural wastewater have been discharged into water bodies, and the pollutants (heavy metals, refractory organic matter, etc.) and nutrients (N, P, etc.) are continuously accumulated in the bottom mud of rivers, lakes, harbors and other water bodies, making the bottom mud a potential and huge source of internal pollution. If it is not treated in time, it will seriously affect the quality of the water environment and even threaten people's daily life. Sediment, as an important part of water body, is formed by deposit...

Claims

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Application Information

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IPC IPC(8): A01G9/10
Inventor 姚粉霞钱晓晴高亚娟周明耀丛玮玮盛海君周健曹雪林
Owner YANGZHOU UNIV
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