废弃采矿区的土壤地质化学和污染风险 - 东卡尔巴提亚山脉
Doina Smaranda Sirbu-Radasanu1, Ramona Huzum2, Delia-Georgeta Dumitraş3
1Department of Geology, Faculty of Geography and Geology, "Alexandru Ioan Cuza, University of Iaşi, 20A 'Carol I' Blvd., 700505, Iaşi, Romania. doina.sirbu@uaic.ro.
Environmental geochemistry and health
|November 5, 2025
概括
在比斯里塔山脉的采矿废物产生了高的技术盐. 虽然技术土壤表现出高污染风险,但它们的生态影响较低,与对照土壤不同. 建议对Technosols进行进一步的监测.
科学领域:
- 地质化学 地质化学
- 矿物学是什么?矿物学是什么?
- 环境科学 环境科学
背景情况:
- 在比斯里塔山脉的矿加工过程中的采矿废物已经积累起来.
- 矿石烤炉尾矿在没有适当的回收的情况下被放弃.
- 这项研究侧重于控制土壤和这些尾矿上开发的Technosol.
研究的目的:
- 为了矿物学和地质化学地表征控制土壤和Technosol.
- 评估土壤的成熟度和气候状况.
- 评估污染风险和生态影响.
主要方法:
- 用于矿物学和地球化学分析的X射线衍射 (XRD) 和X射线光 (XRF).
- 地质化学指数和质量平衡计算土壤成熟度和气候变化.
- 对的金属缩指数 (MEI) 和生态风险 (Ei) 评估.
主要成果:
- 罕见的矿物质 (sonolite,hodgkinsonite,bustamite,braunite,ardenite,nimite,pyrosmalite) 和粘土矿物质的识别.
- 这两种土壤都表现出中等到高级的进化状态,Ca>Mg>Na>K耗尽.
- 技术盐具有非常高的丰度 (23,421 mg/kg) 和高的MEI (10.28-21.71),但生态风险低 (Ei <40).
结论:
- 在采矿尾矿上制造的技术盐是富含和罕见的Mn矿物质.
- 尽管污染潜力很高,但Technosols中的直接生态风险很低.
- 控制土壤不需要对进行监测,但技术土壤需要未来对生态风险进行评估.
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