在现场条件下,从石残留物中生态工程技术地表中控制的物种化和动员的地化学因素
Narottam Saha1, Chengyao Ren1, David Parry2
1Sustainable Minerals Institute, The University of Queensland, Brisbane, QLD 4072, Australia.
Journal of hazardous materials
|June 20, 2025
概括
生态工程中和性氧化残留物 (BR),使 (V) 不动. 将有机物和肥料添加到BR技术中,通过创造稳定的土壤状况来最大限度地降低长期的环境风险.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 土壤科学 土壤科学
背景情况:
- 矿残留物 (BR) 由于 (V) 在性条件下具有高溶解度,造成环境风险.
- 生态工程将BR转化为技术盐,提高稳定性,但需要了解V的行为.
- 在BR转化过程中,V分离,流动性和生物可用性的机制尚不清楚.
研究的目的:
- 调查 (V) 分割,流动性和生物可用性在石残留物 (BR) 在生态工程技术溶.
- 为了确定控制BRtechnosols中V行为的关键因素.
- 评估V的长期环境风险在管理的BR中.
主要方法:
- 在BR技术上进行了长期的野外度测试.
- 分析了 (V) 变异和宿主阶段.
- 评价了pH值和生态工程修改 (有机物,肥料) 对V固定的影响.
主要成果:
- 在BR技术盐中, (V) 主要与铁 (Fe) 氧化物 (血) 相关,其次是有机和氧化物结合相.
- pH 是V溶性的主要驱动因素,强调了性中和的重要性.
- 有机物和超酸盐肥料的共同修改有效地中和了pH,并使V.
- 有机-V复杂化被确定为一个显著的V沉没.
结论:
- 生态工程通过中和性并促进稳定的技术盐形成,有效地将 (V) 固定在石残留物 (BR) 中.
- 在环中性pH条件下,BR技术盐中的V的长期污染风险是最小的.
- 经过管理的BR技术土壤可以发展类似于土壤的特性,支持植被生长.
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