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评估矿山排水被动处理设施的单位工艺中减少的机制和效率
Hye-Lim Kwon1,2, Duk-Min Kim3, Seong-Sook Park2
1Department of New Energy and Mining Engineering, Sangji University, 83 Sangjidae-Gil, Wonju, Gangwon-Do, 26339, Republic of Korea.
Environmental geochemistry and health
|October 13, 2025
概括
被动处理设施显示 (Mn) 减少,但石灰岩和氧化本身是不够的. 水深和Fe (II) 度是这些系统中减少的关键因素.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 环境化学环境化学
背景情况:
- 被动处理设施经常显示 (Mn) 减少,尽管石灰岩反应和氧化本身通常是无效的.
- 了解处理机制对于设计有效的被动系统和确定需要额外的处理过程至关重要.
研究的目的:
- 调查影响被动处理设施度下降的主要因素.
- 评估Mn去除的机制,并量化不同单位工艺的减少率.
主要方法:
- 分析韩国被动处理设施的数据.
- 进行批量石灰石实验.
- 评估Mn与Fe的共降和吸附作用.
- 确定影响Mn度降低的关键因素.
主要成果:
- 发现Mn的共同沉和Fe的吸附是不太可能减少Mn的机制.
- 水深和Fe (II) 度被确定为导致Mn度下降的主要因素.
- 计算的平均Mn度下降率在氧化池中为0.03 mg L−1天−1,在连续性生产系统 (SAPS) 中为0.31 mg L−1天−1,在有氧湿地中为0.93 mg L−1天−1.
结论:
- 在被动处理系统中,水深和Fe (II) 度对于有效的Mn减少至关重要.
- 这些发现提高了对有氧湿地中去除机制的理解.
- 观察到的Mn降低效率的差异应该为被动处理设施的设计和改造提供信息.
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