Protection method for improving soil slope to resist rainwater erosion through phosphogypsum and microorganisms

A soil slope and microbial technology, applied in the field of slope engineering, can solve problems such as high cost and secondary landslides, and achieve the effects of reducing pollution, realizing solidification, and reducing use costs

Pending Publication Date: 2020-07-17
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, these traditional methods are expensive, on the other hand, the gray protective design for

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] Embodiment: a kind of protection method that adopts phosphogypsum and microorganism to improve soil quality slope anti-rainwater erosion, comprises the following steps:

[0023] (1) Preparation of culture medium and microbial solution: Weigh 40kg soybean meal, 10kg (NH 4 ) 2 SO 4 , 3.55kgNa 2 HPO 4 , 40kgNaOH, prepared as a medium mixed solute, mixed the medium mixed solute with 1000kg water to prepare a liquid medium, sealed and sterilized the liquid medium in an autoclave at 121°C for 25 minutes, then cooled to 30°C for later use Add 10L of Bacillus pasteuriani liquid to the liquid medium to make a microbial solution, put the microbial solution into a constant temperature shaking incubator at 30°C, and shake it at 200 rpm for more than 24 hours until the microbial solution is within the bar OD of Bacillus 600 is 1.5;

[0024] (2) Preparation of cementing liquid: Weigh 1200kg of urea and 600kg of calcium chloride, mix with water to prepare 10100L of cementing liq...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a protection method for improving a soil slope to resist rainwater erosion through phosphogypsum and microorganisms. The protection method is characterized by including the steps that (1), bacillus pasteurii is put in a culture medium, a microorganism solution is prepared, urea, calcium chloride and water are mixed, and cementing liquid is prepared; (2), the mixture, the microorganism solution and water are mixed and stirred uniformly, the cementing liquid and water are added, the materials are mixed, and improved mixture slurry is prepared; and (3), a wet spraying method is adopted for spraying the improved mixture slurry onto the surface of the slope twice, then the improved mixture slurry and grass seeds are stirred uniformly, the material is sprayed to the surface of the slope at a time, the slope is covered with non-woven fabric, the non-woven fabric is firmly bound, and water is sprayed to the slope every day for maintenance. By means of the method, the protection requirements of rainwater wash resistance and slope ecological greening of the soil slope made of loess, gravelly soil and the like can be met, the phosphogypsum can be consumed, occupation ofcultivated land is reduced, and available phosphorus can promote plant growth. By means of the phosphogypsum improved with the microorganisms, harmful elements can be cured, and environmental pollution is reduced.

Description

technical field [0001] The invention relates to the field of slope engineering, in particular to a protection method for improving soil slope resistance to rainwater erosion by using phosphogypsum and microorganisms. Background technique [0002] Soil slopes have weak anti-erosion ability, especially the loess has collapsibility, and the excavated slopes are prone to serious water and soil erosion under the condition of rainfall, which will lead to landslide disasters of loess slopes. The traditional methods mostly adopt protective measures such as arched slope protection, sash beam slope protection, and mortar rubble slope protection. On the one hand, these traditional methods are expensive, on the other hand, the gray protective design forms a large contrast with the surrounding landscape, and is easy to cause the risk of secondary landslides. [0003] Phosphogypsum is a by-product produced by the wet process of phosphoric acid produced by the reaction of phospholime and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E02D17/20C04B28/14A01G20/00C12N1/20C12R1/07
CPCE02D17/202C04B28/143A01G20/00C12N1/20C04B2201/20C04B14/361C04B18/141C04B22/124C04B24/2652E02D2250/00E02D2300/0025E02D2300/0045E02D2300/0076
Inventor 李志清周应新钱正富侯建伟唐忠林吴尚峰刘志义曾维成
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap