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解钾JX-10菌的筛选及解钾工艺

薛永萍 肖春桥 张琰图 池汝安

薛永萍, 肖春桥, 张琰图, 池汝安. 解钾JX-10菌的筛选及解钾工艺[J]. 矿产综合利用, 2023, 44(2): 17-23. doi: 10.3969/j.issn.1000-6532.2023.02.004
引用本文: 薛永萍, 肖春桥, 张琰图, 池汝安. 解钾JX-10菌的筛选及解钾工艺[J]. 矿产综合利用, 2023, 44(2): 17-23. doi: 10.3969/j.issn.1000-6532.2023.02.004
Xue Yongping, Xiao Chunqiao, Zhang Yantu, Chi Ru’an. Screening of Potassium Dissolving JX-10 Bacteria and Research on the Optimization of Potassium-dissolving[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(2): 17-23. doi: 10.3969/j.issn.1000-6532.2023.02.004
Citation: Xue Yongping, Xiao Chunqiao, Zhang Yantu, Chi Ru’an. Screening of Potassium Dissolving JX-10 Bacteria and Research on the Optimization of Potassium-dissolving[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(2): 17-23. doi: 10.3969/j.issn.1000-6532.2023.02.004

解钾JX-10菌的筛选及解钾工艺

doi: 10.3969/j.issn.1000-6532.2023.02.004
基金项目: 国家自然科学基金(51674178);国家重点研发计划(2018YFC1801800)。
详细信息
    作者简介:

    薛永萍(1979-),女,博士,副教授,主要从事微生物冶金等研究。

    通讯作者:

    池汝安(1959-),男,博士,教授,主要从事稀土矿物加工及分离等研究。

  • 中图分类号: TD981

Screening of Potassium Dissolving JX-10 Bacteria and Research on the Optimization of Potassium-dissolving

  • 摘要: 本文从一钾长石矿区土壤中分离、筛选得到了6株高效解钾细菌。其中命名为JX-10的菌株分离于矿区茼蒿根系土壤,经基因测序鉴定为Bacillus sp.,与KT981886菌相似度高到99.72%。同时就培养时间、温度及转速等解钾工艺条件进行了探讨。实验结果表明,JX-10菌株具有分解钾长石矿物的能力。其较佳解钾工艺条件为:培养温度28 ℃、时间10 d,转速160 r/min,培养基pH值为 5.0,钾长石浓度2 g/L,粒度0.03 mm,接种量25%,硫酸铵浓度0.2 g/L。在较佳工艺条件下,溶液中可溶性钾离子含量可达23.32 mg/L,浸出率为8.36%。

     

  • 图  1  JX-10菌系统发育进化

    Figure  1.  Phylogenetic tree of the JX-10 strain

    图  2  JX-10菌株分解钾矿红外图谱

    Figure  2.  Infrared spectrum of k-feldspar decomposed by JX-10 strain

    图  3  培养时间对溶液中可溶性钾离子含量的影响

    Figure  3.  Effect of different culture time on the soluble potassium content

    图  4  培养温度对溶液中可溶性钾离子含量的影响

    Figure  4.  Effect of the cultivation temperature on the soluble potassium content

    图  5  培养转速对溶液中可溶性钾离子含量的影响

    Figure  5.  Effect of shaking speed during cultivation on the soluble potassium content

    图  6  培养基初始pH值对溶液中可溶性钾离子含量的影响

    Figure  6.  Effect of pH value of the culture medium on the soluble potassium content

    图  7  矿粉浓度对溶液中可溶性钾离子含量的影响

    Figure  7.  Effect of the K-feldspar concentration on corrosion efficiency

    图  8  矿粉粒度对溶液中可溶性钾离子含量的影响

    Figure  8.  Effect of K-feldspar granularity on the soluble potassium content

    图  9  接种量对溶液中可溶性钾离子含量的影响

    Figure  9.  Effect of the inoculation volume on the soluble potassium content

    图  10  硫酸铵浓度对溶液中可溶性钾离子含量的影响

    Figure  10.  Effect of the ammonium sulfate dose on the soluble potassium content

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出版历程
  • 收稿日期:  2021-02-01
  • 修回日期:  2021-05-06

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