Title:
VERTICAL BLOCKING BARRIER BASED ON MICROBIAL METALLOGENESIS AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/082445
Kind Code:
A1
Abstract:
Disclosed in the present invention are a vertical blocking barrier based on microbial metallogenesis and a preparation method therefor, wherein the raw materials of the vertical blocking barrier comprise: in-situ soil, calcium bentonite, a bacterium-containing nutrient solution and a cementing solution, wherein the bacterium-containing nutrient solution is a nutrient solution containing flocculent urease-producing bacterial flora, the dry mass of the calcium bentonite accounts for 5-15% of the mass of the in-situ soil, the mass ratio of the bacterium-containing nutrient solution to the cementing solution is 1:2, the mass ratio of the cementing solution to the calcium bentonite is 2-5:1, and the mass ratio of the bacterium-containing nutrient solution to the in-situ soil is 1-2.5:10. The present invention can solve the problem of the insufficient anti-seepage performance of calcium bentonite used in a vertical blocking barrier, and reduces the preparation costs and carbon emissions thereof.
Inventors:
JIANG NINGJUN (CN)
HU XINLEI (CN)
ZHANG YU (CN)
DU YANJUN (CN)
LI XUAN (CN)
ZHU XIN (CN)
HU XINLEI (CN)
ZHANG YU (CN)
DU YANJUN (CN)
LI XUAN (CN)
ZHU XIN (CN)
Application Number:
PCT/CN2022/143184
Publication Date:
April 25, 2024
Filing Date:
December 29, 2022
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
International Classes:
C04B28/00; C04B14/10; C04B111/27
Foreign References:
| CN111501733A | 2020-08-07 | |||
| CN111320444A | 2020-06-23 | |||
| KR102079245B1 | 2020-02-19 | |||
| US20170008052A1 | 2017-01-12 | |||
| US20200318141A1 | 2020-10-08 |
Other References:
FAN RIDONG , DU YANJUN , LIU SONGYU , YANG YULING , MEI DANBING: "Compressibility and hydraulic conductivity of soil/Ca-bentonite backfills for vertical slurry cutoff wall", JOURNAL OF HYDRAULIC ENGINEERING, vol. 46, 15 June 2015 (2015-06-15), pages 255 - 262, XP093160445, ISSN: 0559-9350, DOI: 10.13243/j.cnki.slxb.2015.S1.047
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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