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Effects of Different Nitrogen Sources on the Formation of Biogenic Jarosite

Author

Listed:
  • Haitao Huang

    (Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
    College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China)

  • Weitong Hu

    (Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China)

  • Xiang Zi

    (Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China)

  • Xiaomeng Wang

    (Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China)

  • Jianru Liang

    (Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China)

  • Lixiang Zhou

    (Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China)

Abstract

The effects of nitrogen sources on the biosynthesis of jarosite were investigated by analyzing the changes in pH, Fe 2+ , total Fe (TFe), and jarosite production in a 9K culture medium containing different nitrogen sources. Three nitrogen sources, namely (NH 4 ) 2 SO 4 , carbamide (CO(NH 2 ) 2 ), and NH 4 NO 3 , were used in this study. The solution’s pH and Fe 2+ concentrations were set to 2.5 and 160 mmol/L, respectively. The results demonstrated that the three different nitrogen sources could be used by Acidithiobacillus ferrooxidans ( A. ferrooxidans ) LX5, but the degree of utilization differed. The addition of (NH 4 ) 2 SO 4 facilitated the growth of A. ferrooxidans LX5 compared with the other two nitrogen sources, while the bacterial activity in the CO(NH 2 ) 2 set was minimum. The pH of the solution had an inverse correlation with bacterial activity. The mineralization rate using (NH 4 ) 2 SO 4 as the nitrogen source was 42.48%, which was slightly higher than the rates obtained with CO(NH 2 ) 2 and NH 4 NO 3 (31.67% and 35.35%, respectively). The resulting minerals showed a different appearance and chemical composition. However, the XRD spectra showed similar chemical structure. The jarosites were identified as a mixture of jarosite, ammonioiarosite, and carphosiderite.

Suggested Citation

  • Haitao Huang & Weitong Hu & Xiang Zi & Xiaomeng Wang & Jianru Liang & Lixiang Zhou, 2023. "Effects of Different Nitrogen Sources on the Formation of Biogenic Jarosite," Sustainability, MDPI, vol. 15(22), pages 1-14, November.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:22:p:15765-:d:1276634
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    References listed on IDEAS

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    1. Haitao Huang & Kanghui Geng & Chong Wang & Xianhui Wu & Caichun Wei, 2023. "Impact of Fulvic Acid and Acidithiobacillus ferrooxidan Inoculum Amount on the Formation of Secondary Iron Minerals," IJERPH, MDPI, vol. 20(6), pages 1-12, March.
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