Article(id=1311349777460199519, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1311349772552859828, articleNumber=null, orderNo=null, doi=10.13355/j.cnki.sfyj.2025.06.003, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1747929600000, receivedDateStr=2025-05-23, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1790579750647, onlineDateStr=2026-09-28, pubDate=1766160000000, pubDateStr=2025-12-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790579750647, onlineIssueDateStr=2026-09-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790579750647, creator=13701087609, updateTime=1790579750647, updator=13701087609, issue=Issue{id=1311349772552859828, tenantId=1146029695717560320, journalId=1146120122248306696, year='2025', volume='44', issue='6', pageStart='707', pageEnd='838', issueExtLink='null', onlineDate='null', pubDate='1766160000000', pubDateStr='2025-12-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790579749477, creator='13701087609', updateTime=1790588567303, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1311386757267022261, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1311349772552859828, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1311386757267022262, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1311349772552859828, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=724, endPage=734, ext={EN=ArticleExt(id=1311349777648943200, articleId=1311349777460199519, tenantId=1146029695717560320, journalId=1146120122248306696, language=EN, title=Effect of Initial pH and Ore-Pulp Ratio on Bioleaching of A Sandstone Type Uranium Deposit, columnId=1152626641181700664, journalTitle=Hydrometallurgy of China, columnName=Experiment Research, runingTitle=null, highlight=null, articleAbstract=

During the biological leaching process, leaching microorganisms are relatively sensitive to environmental factors such as the initial pH and ore-pulp ratio. Taking a sandstone type uranium deposit in Inner Mongolia as the research object, by analyzing the pH, REDOX potential (Eh), iron ion concentration and uranium leaching rate of the leaching solution, the influence of the initial pH and ore-pulp ratio on the uranium leaching rate was discussed. The results show that when the initial pH is 1.4 and the ore-pulp ratio is 10%, the biological leaching effect of uranium is the best, and the uranium leaching rates reach 95.63% and 94.22%, respectively. An appropriate initial pH can reduce the formation of iron precipitation and maintain the activity of mixed Acidithiobacillus ferrous oxide (At.f) and Thiobacillus thiooxidans (T.t). The optimized ore-pulp ratio can enhance the mass transfer efficiency and promote leaching. The research can provide an important basis for optimizing the bioleaching process of sandstone-type uranium ores, and the research results can offer theoretical basis for the enhanced bioleaching of sandstone-type uranium ores in Inner Mongolia region.

, authors=Zixian HUANG1, 2, Chunguang LI1, 2, Zhenzhong LIU1, 2, Yaocai ZHANG1, 2, Yongmei LI1, 2, Yizi TANG1, 2, authorsList=Zixian HUANG, Chunguang LI, Zhenzhong LIU, Yaocai ZHANG, Yongmei LI, Yizi TANG, authorCompany=null, correspAuthors=Chunguang LI, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1311349777963516001, articleId=1311349777460199519, tenantId=1146029695717560320, journalId=1146120122248306696, language=CN, title=初始pH与矿浆比对某砂岩铀矿生物浸出的影响, columnId=1152626641328501305, journalTitle=湿法冶金, columnName=试验研究, runingTitle=null, highlight=null, articleAbstract=

在生物浸出过程中,浸矿微生物对初始pH和矿浆比等环境因素较为敏感。以内蒙古某砂岩型铀矿为研究对象,通过分析溶浸液的pH、氧化还原电位(Eh)、铁离子浓度及铀浸出率,探讨了初始pH和矿浆比对铀浸出率的影响。结果表明:初始pH为1.4和矿浆比为10%时,生物浸出铀的效果最佳,铀浸出率分别达95.63%和94.22%;适宜的初始pH可减少铁沉淀生成,维持混合氧化亚铁硫杆菌(At.f)和氧化硫硫杆菌(T.t)的活性;而优化的矿浆比则能提高传质效率,促进浸出。该研究可为优化砂岩型铀矿生物浸出工艺提供重要依据,研究成果可为内蒙古地区砂岩型铀矿的强化生物浸出提供理论依据。

, authors=黄子贤1, 2, 李春光1, 2, 刘振中1, 2, 张耀财1, 2, 李咏梅1, 2, 唐逸姿1, 2, authorsList=黄子贤, 李春光, 刘振中, 张耀财, 李咏梅, 唐逸姿, authorCompany=null, correspAuthors=李春光, authorNote=

黄子贤(2001—),男,硕士,主要研究方向为溶浸采铀。

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李春光(1983—),女,博士,副教授,主要研究方向为溶浸采矿。E-mail: 。
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黄子贤(2001—),男,硕士,主要研究方向为溶浸采铀。

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黄子贤(2001—),男,硕士,主要研究方向为溶浸采铀。

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初始pH与矿浆比对某砂岩铀矿生物浸出的影响
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黄子贤 1, 2 , 李春光 1, 2 , 刘振中 1, 2 , 张耀财 1, 2 , 李咏梅 1, 2 , 唐逸姿 1, 2
湿法冶金 | 试验研究 2025,44(6): 724-734
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湿法冶金 |试验研究 2025 , 44 (6) : 724 -734
初始pH与矿浆比对某砂岩铀矿生物浸出的影响
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黄子贤1, 2, 李春光1, 2 , 刘振中1, 2, 张耀财1, 2, 李咏梅1, 2, 唐逸姿1, 2
作者信息
  • 1.南华大学 资源环境与安全工程学院,湖南 衡阳 421001
  • 2.南华大学 放射性废物处理与处置与数学模型研发中心,湖南 衡阳 421001
通讯作者:
李春光(1983—),女,博士,副教授,主要研究方向为溶浸采矿。E-mail: 。
作者简介:

黄子贤(2001—),男,硕士,主要研究方向为溶浸采铀。

Effect of Initial pH and Ore-Pulp Ratio on Bioleaching of A Sandstone Type Uranium Deposit
Zixian HUANG1, 2, Chunguang LI1, 2 , Zhenzhong LIU1, 2, Yaocai ZHANG1, 2, Yongmei LI1, 2, Yizi TANG1, 2
Affiliations
  • 1.College of Resources Environment and Safety Engineering, University of South China, Hengyang 421001, China
  • 2.R&D Center of Radioactive Waste Treatment, Disposal and Modeling, University of South China, Hengyang 421001, China
出版时间: 2025-12-20 doi: 10.13355/j.cnki.sfyj.2025.06.003
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在生物浸出过程中,浸矿微生物对初始pH和矿浆比等环境因素较为敏感。以内蒙古某砂岩型铀矿为研究对象,通过分析溶浸液的pH、氧化还原电位(Eh)、铁离子浓度及铀浸出率,探讨了初始pH和矿浆比对铀浸出率的影响。结果表明:初始pH为1.4和矿浆比为10%时,生物浸出铀的效果最佳,铀浸出率分别达95.63%和94.22%;适宜的初始pH可减少铁沉淀生成,维持混合氧化亚铁硫杆菌(At.f)和氧化硫硫杆菌(T.t)的活性;而优化的矿浆比则能提高传质效率,促进浸出。该研究可为优化砂岩型铀矿生物浸出工艺提供重要依据,研究成果可为内蒙古地区砂岩型铀矿的强化生物浸出提供理论依据。

混合嗜酸菌  /  初始pH  /  矿浆比  /  生物浸出  /  砂岩型铀矿

During the biological leaching process, leaching microorganisms are relatively sensitive to environmental factors such as the initial pH and ore-pulp ratio. Taking a sandstone type uranium deposit in Inner Mongolia as the research object, by analyzing the pH, REDOX potential (Eh), iron ion concentration and uranium leaching rate of the leaching solution, the influence of the initial pH and ore-pulp ratio on the uranium leaching rate was discussed. The results show that when the initial pH is 1.4 and the ore-pulp ratio is 10%, the biological leaching effect of uranium is the best, and the uranium leaching rates reach 95.63% and 94.22%, respectively. An appropriate initial pH can reduce the formation of iron precipitation and maintain the activity of mixed Acidithiobacillus ferrous oxide (At.f) and Thiobacillus thiooxidans (T.t). The optimized ore-pulp ratio can enhance the mass transfer efficiency and promote leaching. The research can provide an important basis for optimizing the bioleaching process of sandstone-type uranium ores, and the research results can offer theoretical basis for the enhanced bioleaching of sandstone-type uranium ores in Inner Mongolia region.

mixed acidophilic bacteria  /  initial pH  /  ore-pulp ratio  /  biological leaching  /  sandstone-type uranium ore
黄子贤, 李春光, 刘振中, 张耀财, 李咏梅, 唐逸姿. 初始pH与矿浆比对某砂岩铀矿生物浸出的影响. 湿法冶金, 2025 , 44 (6) : 724 -734 . DOI: 10.13355/j.cnki.sfyj.2025.06.003
Zixian HUANG, Chunguang LI, Zhenzhong LIU, Yaocai ZHANG, Yongmei LI, Yizi TANG. Effect of Initial pH and Ore-Pulp Ratio on Bioleaching of A Sandstone Type Uranium Deposit[J]. Hydrometallurgy of China, 2025 , 44 (6) : 724 -734 . DOI: 10.13355/j.cnki.sfyj.2025.06.003
  • 国家自然科学基金资助项目(52204139)
  • 湖南省自然科学基金资助项目(2024JJ5330)
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2025年第44卷第6期
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doi: 10.13355/j.cnki.sfyj.2025.06.003
  • 接收时间:2025-05-23
  • 首发时间:2026-09-28
  • 出版时间:2025-12-20
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  • 收稿日期:2025-05-23
基金
国家自然科学基金资助项目(52204139)
湖南省自然科学基金资助项目(2024JJ5330)
作者信息
    1.南华大学 资源环境与安全工程学院,湖南 衡阳 421001
    2.南华大学 放射性废物处理与处置与数学模型研发中心,湖南 衡阳 421001

通讯作者:

李春光(1983—),女,博士,副教授,主要研究方向为溶浸采矿。E-mail: 。
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https://castjournals.cast.org.cn/joweb/sfyj/CN/10.13355/j.cnki.sfyj.2025.06.003
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
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属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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