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缓解硫酸盐降低屏障中因吸附诱导的反应性损失:从多层土壤升级到试点规模的示范演示

Sang Hyun Kim¹, Yeon Gyoung Chu², Heesoo Woo³

¹Water Cycle Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, South Korea; Division of Energy and Environmental Technology, KIST, Korea University of Science and Technology (UST), Seoul 02792, South Korea.

|December 31, 2025

概括

透反应屏障通过刺激减少硫酸盐的细菌 (SRB) 从地下水中有效地去除硫酸盐和金属离子. 多层配置确保了统一的营养供应,优化了污染物去除.

科学领域:

环境工程环境工程
地质化学地质化学
微生物学微生物学

背景情况:

地下水被硫酸盐和金属离子污染给环境带来了重大风险.
透反应屏障 (PRB) 是一个有前途的现场补救技术.
减少硫酸盐的细菌 (SRB) 在减少硫酸盐和金属的沉中发挥着关键作用.

研究的目的:

评估使用堆肥基材料去除硫酸盐和金属离子的PRB的有效性.
调查屏障配置对SRB活动和污染物清除效率的影响.
优化PRB设计,以实现持续的地下水整治.

主要方法:

在二维中模拟PRB,使用牲畜堆肥,粉,石和石.
来自韩国炼厂的污染地下水的引入.
简单放置与多层配置与烯酸板细分的比较.

主要成果:

简单的PRB配置导致硫酸盐减少的空间不平衡,原因是颗粒沉积和溶解有机碳 (DOC) 分布不均.
多层PRB配置确保了均的DOC供应,使SRB在所有深度都能有效地刺激.
在45天内达到高达90%的硫酸盐去除,试点规模的测试显示在6个月内稳定去除.

结论:

屏障配置对于PRBs在地下水修复中的成功性能至关重要.
多层PRB有效地克服了与颗粒沉积和营养物质分配相关的限制.
PRB提供了一种可持续的解决方案,用于从污染的地下水中去除硫酸盐和金属离子.

关键词:

深度依赖的异质性取决于深度.多层次的配置多层次的配置.透的反应障碍物是可以透过的.试点规模的应用程序.减少硫酸盐的细菌可以减少硫酸盐.

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