Stabilization of Pb(II) in wastewater and tailings by commercial bacteria through microbially induced phosphate precipitation (MIPP)
文献类型：期刊论文
| 作者 | Han, Li-Jun; Li, Jiang -Shan; Chen, Zhen; Xue, Qiang
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-04-10 |
| 卷号 | 868 |
| 关键词 | Commercial bacterium bacillus subtilis Microbially induced phosphate precipitation (MIPP) Pb(II) removal Wastewater Lead-zinc tailings |
| ISSN号 | 0048-9697 |
| 英文摘要 | Microbially induced phosphate precipitation (MIPP) is an effective and eco-friendly method for Pb(II) stabilization. The phosphate-solubilizing microorganisms (PSM) for MIPP are commonly isolated from Pb(II)-contaminated sites through a series of intricate and time-consuming enrichment and purification processes. This research used ready-made commercial bacteria to develop a simple MIPP process. Bacillus subtilis (BS, CCTCC AB 98002) was selected from two commercial PSM strains owing to more effective Pb(II) removal. Compared to the most isolated microorgan-isms, BS released more than twice as much inorganic phosphorus (Pi) as well as had a high-level Pb(II) tolerance. BS could remove >99% of Pb(II) from 500 mg/L Pb(II)-containing water at the optimal 0.05 M sodium glycerophosphate (SGP), pH 7-9, and <= 0.03 M MgCl2, outperforming most isolated microorganisms. In addition, BS could mitigate the contamination risk of the lead-zinc tailings, by reducing the readily leachable Pb(II) concentration from 0.81 mg/L (over the regulatory limit of 0.1 mg/L) to 0.00042 mg/L. The unstable Pb(II) in the solution and tailings was ultimately stabilized to Pb-5(PO4)(3)Cl after the SGP phosphorlysis and phosphate precipitation processes. In conclusion, commercial BS is a superior alternative to isolated microorganisms for MIPP on Pb(II) stabilization. The simple-processed and high-effective BS-based MIPP provides the MIPP method a new insight for widespread implementation in the remediation of heavy metals-containing wastewater, soil, and waste. |
| 学科主题 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000924539700001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34969]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; |
| 推荐引用方式 GB/T 7714 | Han, Li-Jun,Li, Jiang -Shan,Chen, Zhen,et al. Stabilization of Pb(II) in wastewater and tailings by commercial bacteria through microbially induced phosphate precipitation (MIPP)[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,868. |
| APA | Han, Li-Jun,Li, Jiang -Shan,Chen, Zhen,&Xue, Qiang.(2023).Stabilization of Pb(II) in wastewater and tailings by commercial bacteria through microbially induced phosphate precipitation (MIPP).SCIENCE OF THE TOTAL ENVIRONMENT,868. |
| MLA | Han, Li-Jun,et al."Stabilization of Pb(II) in wastewater and tailings by commercial bacteria through microbially induced phosphate precipitation (MIPP)".SCIENCE OF THE TOTAL ENVIRONMENT 868(2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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