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金属从矿井排水被动处理系统的可泄漏性垂直流生物反应器基板

Justine I McCann¹, Robert W Nairn¹

¹University of Oklahoma, Center for Restoration of Ecosystems and Watersheds, 202 W. Boyd Street, Norman, OK, 73019, USA.

Journal of environmental management

|June 10, 2025

概括

来自用于矿山排水处理的垂直流生物反应器 (VFBR) 的废基板含有金属. 虽然不危险,但漏试验显示金属可能超过了一些指导方针,需要仔细考虑处置或重复使用.

科学领域:

环境科学环境科学
地质化学地质化学
微生物学微生物学

背景情况:

垂直流生物反应器 (VFBR) 对于矿井排水的被动生物处理至关重要.
它们利用有机基质来创造无氧条件,促进硫酸盐减少细菌的活性,以降落和去除金属硫化物.
随着时间的推移,VFBRs可能会被堵塞,因此需要维护和对金属含量进行消耗基板的表征.

研究的目的:

评估从硬岩矿井排水中废弃的VFBR基板中金属的环境可用性.
根据金属浸出,评估废弃基板是否适合于处置或有益的再利用.

主要方法:

在两个三州矿区的VFBR基板上进行了漏试验.
为了模拟处置/再利用场景,使用了三种不同pH值和组成的液.
分析了液中的金属度.

主要成果:

液中的金属度没有超过资源保护和回收法案 (RCRA) 的限制.
然而,一些液金属度超过了俄克拉荷马州水资源局的指导方针.
基质中的金属总度超过了土壤和沉积物的基于共识的毒性基准.

结论:

来自这些地点的消耗VFBR基板不被归类为危险废物.
由于金属度超过某些环境指南,建议对重复使用选项保持谨慎.
在进行废弃或有益的VFBR基板再利用之前,需要进行进一步的表征.

关键词:

FLT FLT FLT 在线播放基于自然的解决方案资源回收利用的方法这就是SPLPLP.可持续发展可持续性可持续性 TCLP TCLP是什么意思 TCLP是什么意思

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