结合孔水概况和批量测试,量化重氧反应和重金属的释放,可能由管理的含水层补充引发
Nicolò Colombani1, Abraham Ofori2, Jonathan Domizi1
1SIMAU - Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, Via Brecce Bianche 12, 60131, Ancona, Italy.
The Science of the total environment
|October 30, 2025
概括
管理的含水层补充 (MAR) 可以补充地下水并减少意大利波罗平原的污染. 这项研究评估了MAR与含水层材料的相互作用,发现它对污染物水平是安全的,并可能改善重金属的移动性.
科学领域:
- 水文地质学 水文地质学
- 环境科学 环境科学
- 地质化学 地质化学
背景情况:
- 波平原面临着地下水储量下降和因人口和工业活动高而受到的污染.
- 管理式水库补充 (MAR) 是一种水库补充和污染减轻的策略.
- 布雷西亚的城市和工业区对地下水质量产生重大压力,需要MAR评估.
研究的目的:
- 在城市/工业环境中,评估管理的含水层补充 (MAR) 水和含水层矩阵之间的相互作用.
- 评估未受限制的含水层的岩石学变异性和氧化还原梯度.
- 确定MAR的可行性和设计,用于Po平原的地下水管理.
主要方法:
- 钻探两个沉积物核心以捕获岩石学变异性和氧化还原梯度.
- 对物理,化学和元素组成进行孔水概况分析.
- 批量实验和顺序提取以评估污染物释放和金属相相互作用.
- 铁矿物阶段在实验处理前后的表征.
主要成果:
- 孔水分析表明未经处理的废水是可能的污染源,而不是工业活动.
- 海洋水没有引发重大重金属释放;现有的污染物被稀释到低于允许限度.
- 在浅水深度增加的晶体铁氧化物 (>50%±25%) 表明重金属的流动性降低.
结论:
- 马尔是波平原地下水管理的可行策略,对污染物水平没有显著的不利影响.
- 该研究为评估MAR可行性和在类似环境中设计定制解决方案提供了一个框架.
- 通过矿物学变化减少重金属的流动性,MAR有可能提高地下水质量.
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