Construction waste soil improver prepared from kitchen waste, preparation method of improved construction waste soil and application of improved construction waste soil improver

A technology for kitchen waste and construction slag, which is applied in the field of construction slag resource recycling, can solve the problems of poor soil water and fertilizer retention, frequent soil fertilization, etc., and achieves high water stability, shortened curing time, and guaranteed activity. Effect

Pending Publication Date: 2021-12-31
BEIJING GOLDENWAY BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned related technologies, the inventor found that when using the above-mentioned replacement soil for planting, the frequency of soil fertilization is high, and the water and fertilizer retention of the soil is poor.

Method used

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  • Construction waste soil improver prepared from kitchen waste, preparation method of improved construction waste soil and application of improved construction waste soil improver
  • Construction waste soil improver prepared from kitchen waste, preparation method of improved construction waste soil and application of improved construction waste soil improver
  • Construction waste soil improver prepared from kitchen waste, preparation method of improved construction waste soil and application of improved construction waste soil improver

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0043] The construction slag improvement agent prepared by using kitchen waste includes the following raw materials: 1 kg of improved kitchen waste, microbial agent consisting of 4 g of actinomycetes and 6 g of Bacillus subtilis, and 10 g of sodium polyacrylate with a molecular weight of 20 million , urea 10g, oyster powder 200g, kaolin 50g;

[0044] The improved kitchen waste is prepared through the following preparation steps: the kitchen waste is sieved to remove impurities, and then the kitchen waste is sent into a high-pressure extruder for deoiling and desalination pretreatment under an extrusion pressure of 20 MPa , and then add BGB composite bacteria agent to the pretreated kitchen waste to ferment the kitchen waste, the amount of BGB composite bacteria added is 1% of the mass of the pretreated kitchen waste, the fermentation temperature is 70°C, and the time For 20h, improved kitchen waste was obtained; wherein the water content of kitchen waste was 74.94%, crude prot...

preparation example 2

[0046] The construction dregs improvement agent prepared by using kitchen wastes includes the following raw materials: 1.5 kg of improved kitchen wastes, the microbial agent consists of 18 g of Paenibacillus jelly-like, 7 g of Bacillus licheniformis and 13 g of Bacillus megaterium, 20g of sodium polyacrylate with a molecular weight of 15 million, 20g of urea, 100g of oyster powder, and 100g of montmorillonite;

[0047] The rest are the same as in Preparation Example 1.

preparation example 3

[0049] The construction slag improvement agent prepared by using kitchen waste includes the following raw material components: 1.2kg of improved kitchen waste, the microbial agent is composed of 12g of Bacillus subtilis, 15g of Paenibacillus jelly-like and 11g of Bacillus licheniformis, Sodium polyacrylate 15g, urea 12g, oyster powder 180g, kaolin 88g;

[0050] The rest are the same as in Preparation Example 1.

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Abstract

The invention relates to the field of recycling of building residue soil resources, and particularly discloses a building residue soil improver prepared from kitchen waste, and a preparation method and an application of improved building residue soil. The building residue soil improver comprises the following raw materials: improved kitchen waste, a microbial agent, sodium polyacrylate, urea, oyster powder and inorganic soil. The preparation method of the improved building muck comprises the following steps: step 1, screening the building muck to remove impurities, and uniformly mixing the building muck modifier with the building muck to form a mixed mound; and step 2, adjusting the water content of the mixed soil pile to 40-60%, stacking the mixed soil pile to form a strip pile, curing the strip pile for 7-15 days under the condition that the temperature is higher than 20 DEG C, and turning the pile once every 1-2 days. The improved building residue soil prepared by the method can be directly used as planting soil for landscaping engineering or ecological restoration engineering, and is excellent in soil fertility and good in water and fertilizer retention.

Description

technical field [0001] The application relates to the field of recycling of construction dregs resources, more specifically, it relates to a construction dreg improvement agent prepared from kitchen waste, a preparation method and application of improved construction dregs. Background technique [0002] In recent years, the total annual production of construction waste in my country is 1.55 billion to 2.4 billion tons, accounting for about 40% of the total urban waste. The total amount of construction waste has reached more than 20 billion tons, most of which are piled in the open or landfilled. In 2017, the output of my country's construction waste was 2.379 billion tons, and the resource utilization was 11,900 tons, with a utilization rate of only 5%. In 2020, the construction waste has reached 2.6 billion tons. At present, the resource utilization rate of construction dregs is not high, and only a small amount is used to make aggregates and prepare concrete building mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C05G3/00C05G3/60C05G3/80C05F17/20C09K101/00
CPCC09K17/40C05C9/00C05F17/20C05G3/00C05G3/60C05G3/80C09K2101/00C05F1/00C05F9/00C05F11/08Y02W30/40
Inventor 李新博马倩陈日远刘鹏阚凤玲
Owner BEIJING GOLDENWAY BIO TECH
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