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Sandstone-type uranium ore prospecting method using sulfate reducing bacteria

A sulfate, sandstone type technology, applied in biochemical equipment and methods, microbial determination/inspection, instruments, etc., can solve the problems of long cycle, large investment, large workload, etc., and achieve short time required and labor intensity. Small, easy-to-use effect

Active Publication Date: 2021-03-19
SHIJIAZHUANG VOCATIONAL TECH INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Technical problem to be solved: Aiming at the disadvantages of large investment, heavy workload and long cycle in the existing prospecting method, the present invention provides a method using sulfate reduction The ore prospecting method of sandstone-type uranium ore is easy to operate, low in investment, short in cycle, and has the advantages of easy development and high accuracy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Collection and analysis of samples of sulfate-reducing bacteria in the Shihongtan sandstone-type uranium deposit in Xinjiang.

[0025] Geological background: The Shihongtan uranium deposit in Xinjiang is an interlayer oxidation zone sandstone uranium deposit, located on the Aiding slope in the southern margin of the Tu-Hami Artesian Basin, and the ore-bearing aquifer occurs in the Middle Jurassic Shuixigou Group Among the coal-bearing clastic rocks of the Xishanyao Formation, the main lithology is conglomerate, coarse pebble-bearing, medium-grained feldspathic quartz sandstone, and pore confined water occurs. The modern groundwater flows generally from south to north, and the groundwater is of high salinity Cl.SO 4 -Na type water, the uranium content in groundwater can reach up to 2.2451×10 -3 g / L, mainly in UO 2 (CO 3 ) 2 Form migration. A regionally favorable groundwater recharge-diameter-drainage system is the precondition for the formation of this deposit. The ...

Embodiment 2

[0034] Collection and analysis of sulfate-reducing bacteria samples from Dongsheng sandstone-type uranium deposit in Ordos.

[0035] Geological background: The sandstone-type uranium deposits in the Dongsheng area occur in the Jurassic Zhiluo Formation, which is divided into two lithological sections, the upper and the lower. They were deposited in two completely different depositional environments, and the upper part of the lower section is gray-green Mudstone and gray-green sandstone, the lower part is gray medium sandstone, which is the main uranium mineralization layer, and the ore-controlling strata are multi-stage braided river sand bodies; the upper part of Zhiluo Formation is mudstone, purple-red fine sandstone and gray-green sandstone, and the rock structure Loose, the thickness of the sand body is 20-40m. The ore-bearing layer contains more organic matter such as carbon scraps and plant debris. From north to south, the sand-bearing ore bodies developed the petrogeoc...

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Abstract

The invention relates to a sandstone-type uranium ore prospecting method using sulfate reducing bacteria. The sandstone-type uranium ore prospecting method comprises the following steps of collectingan underground water sample in a to-be-detected area, dividing the water sample into two parts with equal volumes, and filling the two parts into sterilized glass bottles respectively; heating one part of the water sample at the temperature of 80-105 DEG C for 0.5-1.5 min for later use; taking a heated water sample and an untreated water sample, carrying out series gradient dilution respectively,adding s Starkey culture medium into test tubes, carrying out deep anaerobic culture at a temperature of 28-37 DEG C, and making five test tubes in parallel in each gradient series; observing the number of test tubes with positive experimental phenomena after culture, and obtaining the number of spores in the water sample and the total amount of sulfate reducing bacteria thalli according to an MPNcounting method; and obtaining geobiochemical anomaly through comparison with the surrounding environment, and then delineating the specific position of the concealed mine. The method has the advantages of simple operation, low investment, short period, easy development, high accuracy and the like.

Description

technical field [0001] The invention relates to the field of biological prospecting modes and applications, in particular to a method for prospecting sandstone-type uranium deposits using sulfate-reducing bacteria. Background technique [0002] Sandstone-type uranium deposits in the interlayer oxidation zone have become the most promising and competitive uranium deposits in the world in recent years because of their large ore volume, low development costs, low environmental pollution, and high output benefits. The key object of my country's uranium exploration and development. In the past, the prospecting work for hidden uranium deposits was mainly limited to physical and chemical prospecting techniques, and the chosen prospecting methods generally had the characteristics of large investment, heavy workload, and long cycle. Finding a simple, efficient and accurate uranium prospecting method has always been a problem that people need to solve. [0003] Existing studies have ...

Claims

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Application Information

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IPC IPC(8): C12Q1/64C12Q1/06G01V9/00
CPCC12Q1/64C12Q1/06G01V9/00
Inventor 耿海波安丽平张加赢陈力杜娜
Owner SHIJIAZHUANG VOCATIONAL TECH INST