南华大学学报（自然科学版）2023，Vol.37Issue(5)：28-37,10.DOI:10.19431/j.cnki.1673-0062.2023.05.005
某铀矿石微生物浸出性能及影响因素研究
Study on Microbial Leaching Performance and Influencing Factors of Uranium Ore
摘要
Abstract
To evaluate the application prospects of microbial recovery of a uranium ore,uranium recovery with Leptospirillum ferriphilum,Acidithiobacillus ferrooxidans and Acidi-thiobacillus caldus under different initial pH,inoculum size,leaching time and solid-liquid ratio were carried out according to the orthogonal design.The results showed the highest recovery of the three strains of microorganisms were higher than 97%.During the recovery process,the pH values of the bioleaching systems all showed a decreasing trend,whereas the Eh values all showed an increasing trend.All of the initial pH,inoculum size,leac-hing time and solid-liquid ratio influenced uranium recovery of the three strains of microor-ganisms.However,as for each microorganism,the effects on uranium recovery were dif-ferent.The main factor affecting the recovery of Leptospirillum ferriphilum was the inoculum size,while bioleaching of Acidithiobacillus ferrooxidans and Acidithiobacillus caldus was mainly influenced by the initial pH value.关键词
微生物浸矿/嗜铁钩端螺旋菌/嗜酸氧化亚铁硫杆菌/嗜酸喜温硫杆菌/铀浸出Key words
microbial leaching/Leptospirillum ferriphilum/Acidithiobacillus ferrooxidans/Acidithiobacillus caldus/uranium leaching分类
能源科技引用本文复制引用
李梦婷,王永东,王津华,张成霞,袁野..某铀矿石微生物浸出性能及影响因素研究[J].南华大学学报（自然科学版）,2023,37(5):28-37,10.基金项目
湖南省自然科学基金项目(2022JJ30491) （2022JJ30491）
湖南省教育厅重点项目(22A0308) （22A0308）
